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Morovati S, Baghkheirati AA, Sekhavati MH, Razmyar J. A Review on cLF36, a Novel Recombinant Antimicrobial Peptide-Derived Camel Lactoferrin. Probiotics Antimicrob Proteins 2024; 16:1886-1905. [PMID: 38722550 DOI: 10.1007/s12602-024-10285-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2024] [Indexed: 10/02/2024]
Abstract
Lactoferrin is an antimicrobial peptide (AMP) playing a pivotal role in numerous biological processes. The primary antimicrobial efficacy of lactoferrin is associated with its N-terminal end, which contains various peptides, such as lactoferricin and lactoferrampin. In this context, our research team has developed a refined chimeric 42-mer peptide known as cLF36 over the past few years. This peptide encompasses the complete amino acid sequence of camel lactoferrampin and partial amino acid sequence of lactoferricin. The peptide's activity against human, avian, and plant bacterial pathogens has been assessed using different biological platforms, including prokaryotic (P170 and pET) and eukaryotic (HEK293) expression systems. The peptide positively influenced the growth performance and intestinal morphology of chickens challenged with pathogen bacteria. Computational methods and in vitro studies showed the peptide's antiviral effects against hepatitis C virus, influenza virus, and rotavirus. The chimeric peptide exhibited higher activity against certain tumor cell lines compared to normal cells, which may be attributed to the peptide's interaction with negatively charged glycosaminoglycans on the surface of tumor cells. Importantly, this peptide exhibited no toxicity against host cells and demonstrated remarkable thermal and protease stability in serum. In conclusion, while our investigations suggest that the chimeric peptide, cLF36, may offer potential as a candidate or complementary option to some available antibiotics, antiviral agents, and chemical pesticides, significant uncertainties remain regarding its cost-effectiveness, as well as its pharmacodynamic and pharmacokinetic characteristics, which require further elucidation.
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Affiliation(s)
- Solmaz Morovati
- Department of Pathobiology, Division of Biotechnology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | | | - Mohammad Hadi Sekhavati
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Jamshid Razmyar
- Department of Avian Diseases, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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Ben Selma W, Alibi S, Ferjeni M, Ghezal S, Gallala N, Belghouthi A, Gargouri A, Marzouk M, Boukadida J. Synergistic activity of Thymus capitatus essential oil and cefotaxime against ESBL-producing Klebsiella pneumoniae. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:2936-2946. [PMID: 37952172 DOI: 10.1080/09603123.2023.2280149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/02/2023] [Indexed: 11/14/2023]
Abstract
The objective of the current study was to evaluate the interaction between Tunisian Thymus capitatus essential oil (EO) and cefotaxime against Extended-Spectrum Beta-lactamases (ESBLs) producing Klebsiella pneumoniae hospital strains. GC-MS revealed that the major component of EO was found to be carvacrol (69.28%). The EO exerts an advanced bactericidal effect against all strains. Synergy between EO and cefotaxime was obtained by combined disk diffusion and checkerboard techniques. Combined use of EO and cefotaxime reduced the MIC of imipenem by 8- to 128-fold for all strains (fractional inhibitory concentration index ˂ 0.5, synergy). The time kill curve assay confirmed the advanced activity of combinatory effects of EO and cefotaxime, with total reduce of bacterial number (CFU/mL) after 6 h of culture. Synergistic activity of the combination between EO and cefotaxime constitute an important strategy as therapeutical option to combat infections caused by ESBLs producing Klebsiella pneumoniae.
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Affiliation(s)
- Walid Ben Selma
- Department of Biochemistry, Faculty of Medicine, Laboratory of biological and genetic markers studying for early diagnosis and follow-up of neurological diseases (LR18ES47), Sousse, Tunisia
- Higher Institute of Applied Sciences and Technology, Mahdia, Tunisia
| | - Sana Alibi
- Research Unit Analysis and Process Applied to the Environment UR17ES32, Higher Institute of Applied Sciences and Technology, Mahdia, Tunisia
| | - Mohamed Ferjeni
- Department of Biochemistry, Faculty of Medicine, Laboratory of biological and genetic markers studying for early diagnosis and follow-up of neurological diseases (LR18ES47), Sousse, Tunisia
| | - Samira Ghezal
- Laboratory of Microbiology, Farhat Hached University Hospital, Sousse, Tunisia
| | - Najla Gallala
- Laboratory of Microbiology, Farhat Hached University Hospital, Sousse, Tunisia
| | - Amir Belghouthi
- Laboratory of Microbiology, Farhat Hached University Hospital, Sousse, Tunisia
| | - Ali Gargouri
- Biotechnology center of Sfax, Laboratory of Molecular biology, Sfax, Tunisia
| | - Manel Marzouk
- Department of Biochemistry, Faculty of Medicine, Laboratory of biological and genetic markers studying for early diagnosis and follow-up of neurological diseases (LR18ES47), Sousse, Tunisia
- Laboratory of Microbiology, Farhat Hached University Hospital, Sousse, Tunisia
- Department of Microbiology, Faculty of medicine, University of Sousse, Sousse, Tunisia
| | - Jalel Boukadida
- Department of Biochemistry, Faculty of Medicine, Laboratory of biological and genetic markers studying for early diagnosis and follow-up of neurological diseases (LR18ES47), Sousse, Tunisia
- Laboratory of Microbiology, Farhat Hached University Hospital, Sousse, Tunisia
- Department of Microbiology, Faculty of medicine, University of Sousse, Sousse, Tunisia
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Anwar F, Mahrye, Khan R, Qadir R, Saadi S, Gruczynska-Sekowska E, Saari N, Hossain Brishti F. Exploring the Biochemical and Nutra-Pharmaceutical Prospects of Some Thymus Species - A Review. Chem Biodivers 2024; 21:e202400500. [PMID: 38719739 DOI: 10.1002/cbdv.202400500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/08/2024] [Indexed: 06/27/2024]
Abstract
The Thymus genus includes various medicinal and aromatic species, cultivated worldwide for their unique medicinal and economic value. Besides, their conventional use as a culinary flavoring agent, Thymus species are well-known for their diverse biological effects, such as antioxidant, anti-fungal, anti-bacterial, anti-viral, anti-tumor, anti-inflammatory, anti-cancer, and anti-hypertensive properties. Hence, they are used in the treatment of fever, colds, and digestive and cardiovascular diseases. The pharmaceutical significance of Thymus plants is due to their high levels of bioactive components such as natural terpenoid phenol derivatives (p-cymene, carvacrol, thymol, geraniol), flavonoids, alkaloids, and phenolic acids. This review examines the phytochemicals, biological properties, functional food, and nutraceutical attributes of some important Thymus species, with a specific focus on their potential uses in the nutra-pharmaceutical industries. Furthermore, the review provides an insight into the mechanisms of biological activities of key phytochemicals of Thymus species exploring their potential for the development of novel natural drugs.
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Affiliation(s)
- Farooq Anwar
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
- Institute of Chemistry, University of Sargodha, Sargodha, 40100, Pakistan
| | - Mahrye
- Institute of Chemistry, University of Sargodha, Sargodha, 40100, Pakistan
| | - Rahim Khan
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Rahman Qadir
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Sami Saadi
- Institute de la Nutrition, de l'Alimentation et des Technologies Agroalimetaires INATAA, Universitédes Frères Mentouri Constantine 1, Route de Ain El Bey-Constantine, Algeria
- Laboratoire de Génie Agro-Alimentaire (GeniAAl), INATAA, Université Frères Mentouri Constantine 1 UFC1, Route de Ain, El Bey-Constantine, Algeria
| | - Eliza Gruczynska-Sekowska
- Institute of Food Sciences, Department of Chemistry, Warsaw University of Life Sciences, Nowoursynowska 159 C, PL-02-776, Warsaw, Poland
| | - Nazamid Saari
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Fatema Hossain Brishti
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
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Lupia C, Castagna F, Bava R, Naturale MD, Zicarelli L, Marrelli M, Statti G, Tilocca B, Roncada P, Britti D, Palma E. Use of Essential Oils to Counteract the Phenomena of Antimicrobial Resistance in Livestock Species. Antibiotics (Basel) 2024; 13:163. [PMID: 38391549 PMCID: PMC10885947 DOI: 10.3390/antibiotics13020163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/24/2024] Open
Abstract
Antimicrobial resistance is an increasingly widespread phenomenon that is of particular concern because of the possible consequences in the years to come. The dynamics leading to the resistance of microbial strains are diverse, but certainly include the incorrect use of veterinary drugs both in terms of dosage and timing of administration. Moreover, the drug is often administered in the absence of a diagnosis. Many active ingredients in pharmaceutical formulations are, therefore, losing their efficacy. In this situation, it is imperative to seek alternative treatment solutions. Essential oils are mixtures of compounds with different pharmacological properties. They have been shown to possess the antibacterial, anti-parasitic, antiviral, and regulatory properties of numerous metabolic processes. The abundance of molecules they contain makes it difficult for treated microbial species to develop pharmacological resistance. Given their natural origin, they are environmentally friendly and show little or no toxicity to higher animals. There are several published studies on the use of essential oils as antimicrobials, but the present literature has not been adequately summarized in a manuscript. This review aims to shed light on the results achieved by the scientific community regarding the use of essential oils to treat the main agents of bacterial infection of veterinary interest in livestock. The Google Scholar, PubMed, SciELO, and SCOPUS databases were used for the search and selection of studies. The manuscript aims to lay the foundations for a new strategy of veterinary drug use that is more environmentally friendly and less prone to the emergence of drug resistance phenomena.
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Affiliation(s)
- Carmine Lupia
- Mediterranean Ethnobotanical Conservatory, Sersale (CZ), 88054 Catanzaro, Italy
- National Ethnobotanical Conservatory, Castelluccio Superiore, 85040 Potenza, Italy
| | - Fabio Castagna
- Mediterranean Ethnobotanical Conservatory, Sersale (CZ), 88054 Catanzaro, Italy
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
| | - Roberto Bava
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
| | - Maria Diana Naturale
- Ministry of Health, Directorate General for Health Programming, 00144 Rome, Italy
| | - Ludovica Zicarelli
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, 87036 Cosenza, Italy
| | - Mariangela Marrelli
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, 87036 Cosenza, Italy
| | - Giancarlo Statti
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, 87036 Cosenza, Italy
| | - Bruno Tilocca
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
| | - Paola Roncada
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
| | - Domenico Britti
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
| | - Ernesto Palma
- Department of Health Sciences, University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
- Center for Pharmacological Research, Food Safety, High Tech and Health (IRC-FSH), University of Catanzaro Magna Græcia, 88100 Catanzaro, Italy
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Abrar A, Zafar A, Fatima M, Muntaqua D, Naz I, Fatima H, Ul Haq I. Mechanistic insight into the synergistic antimicrobial potential of Fagonia indica Burm.f. extracts with cefixime. Saudi Pharm J 2024; 32:101893. [PMID: 38204592 PMCID: PMC10777119 DOI: 10.1016/j.jsps.2023.101893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 12/02/2023] [Indexed: 01/12/2024] Open
Abstract
Fagonia indica Burm.f. is known for its anti-infective character and has been studied in the present work as a synergistic remedy against resistant bacterial strains. Initially, phytochemicals were quantified in n-Hexane (n-Hex), ethyl acetate (E.A), methanol (MeOH), and aqueous (Aq.) extracts by Total Phenolic Content (TPC), Total Flavonoid Content (TFC) and Reverse Phase High Performance Liquid Chromatography (RP-HPLC) analysis. Later, after establishing an antibacterial resistance profile for extracts and antibiotics against gram-positive and gram-negative strains, synergism was evaluated in combination with cefixime through time-kill kinetics and bacterial protein estimation studies. Topographic images depicting synergism were obtained by scanning electron microscopy for Methicilin-resistant Staphylococcus aureus (MRSA) and Resistant Escherichia coli (R.E. coli). Results showed the presence of maximum phenolic (28.4 ± 0.67 μg GAE/mg extract) and flavonoid (11 ± 0.42 μg QE/mg extract) contents in MeOH extract. RP-HPLC results also displayed maximum polyphenols in MeOH extract followed by E.A extract. Clinical strains were resistant to cefixime whereas these were moderately inhibited by all extracts (MIC 150-300 µg/ml) except Aq. extract. E.A and n-Hex extracts demonstrated maximum synergism (Fractional inhibitory concentration index (FICI) 0.31) against R.E. coli. The n-Hex extract displayed total synergism against R.P. a with a 4-fold reduction in cefixime dose. Time-kill kinetics showed maximum inhibition of gram-negative bacterial growth from 3 to 12 h when treated at FICI and 2FICI values with > 10-fold reduction of the extracts' dose. All combinations demonstrate > 70 % protein content inhibition with bacterial cell wall disruption in SEM images. Fortunately, FICI concentrations have low hemolytic potential (<5%). Conclusively, F. indica extracts can mitigate antimicrobial resistance against cefixime and can be investigated in detail by in vivo and mechanistic studies.
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Affiliation(s)
- Anum Abrar
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Aroosa Zafar
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Mahvish Fatima
- Department of Physics, Science Unit, Deanship of Educational Services, Qassim University, Buraidah 51452, Saudi Arabia
| | - Durdana Muntaqua
- Shifa College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan
| | - Iffat Naz
- Department of Biology, Science Unit, Deanship of Educational Services, Qassim University, Buraidah 51452, Saudi Arabia
| | - Humaira Fatima
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Ihsan Ul Haq
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Yu H, Zhou Q, He D, Yang J, Wu K, Chai X, Xiang Y, Duan X, Wu X. Enhanced mechanical and functional properties of chitosan/polyvinyl alcohol/hydroxypropyl methylcellulose/alizarin composite film by incorporating cinnamon essential oil and tea polyphenols. Int J Biol Macromol 2023; 253:126859. [PMID: 37714243 DOI: 10.1016/j.ijbiomac.2023.126859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/01/2023] [Accepted: 09/09/2023] [Indexed: 09/17/2023]
Abstract
In this study, cinnamon essential oil and tea polyphenols were added to chitosan/ polyvinyl alcohol/ hydroxypropyl methylcellulose/ alizarin composite films to enhance their mechanical and functional properties. Their addition to the composite films enhanced their antibacterial and antioxidant properties and significantly improved its elongation at break (p < 0.05). Cinnamon essential oil reduced the water vapor permeability, water content, and water solubility of composite films and improved their transparency. The composite films with additive exhibited excellent UV-barrier ability and pH responsivity. Fourier Transform infrared spectroscopy and X-Ray Diffraction analyses confirmed hydrogen bond formation between the polymer molecules and additives. The results of Scanning Electron Microscope-Focused Ion Beam revealed improved surface and cross-section morphology of the films, leading to the generation of a cross-linked structure. Thermogravimetric and differential scanning calorimetry analysis indicated enhanced thermal stability of the composite films upon cinnamon essential oil addition. Analysis of storage quality indicators (TBARS value, TVC, and TVB-N) revealed that the composite films could prolong the freshness of surimi. The incorporation of cinnamon essential oil and tea polyphenols into the composite films has demonstrated significant potential as an effective and natural alternative for active food packaging.
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Affiliation(s)
- Hongpeng Yu
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou, 510006,China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
| | - Qing Zhou
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
| | - Dong He
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou, 510006,China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China.
| | - JinJin Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
| | - Kegang Wu
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou, 510006,China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
| | - Xianghua Chai
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
| | - Yujuan Xiang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
| | - Xuejuan Duan
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
| | - Xiqin Wu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan Xi Road, Panyu District, Guangzhou 510006, People's Republic of China
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Awad NFS, Abd El-Hamid MI, Nabil NM, Tawakol MM, Eid S, Al-Zaban MI, Farouk H, Zakai SA, Elkelish A, Ibrahim MS, Mahmoud HA, Salem SM, Ismail HM, Hamed RI. Multidrug resistant and multivirulent avian bacterial pathogens: tackling experimental leg disorders using phytobiotics and antibiotics alone or in combination. Poult Sci 2023; 102:102889. [PMID: 37666144 PMCID: PMC10491818 DOI: 10.1016/j.psj.2023.102889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/15/2023] [Accepted: 06/17/2023] [Indexed: 09/06/2023] Open
Abstract
Locomotor disorders caused by multidrug-resistant (MDR) bacterial pathogens denote one of the most detrimental issues that collectively threaten the poultry industry leading to pronounced economic losses across the world. Hence, searching for effective alternatives, especially those extracted from plant origins became of great priority targeting a partial or complete replacement of chemical antimicrobials to tackle their developing resistance. Therefore, we aimed to determine the prevalence and antimicrobial resistance of Staphylococcus aureus (S. aureus), Salmonella species, Mycoplasma synoviae (M. synoviae), and Escherichia coli (E. coli) recovered from 500 broilers and ducks (250 each) with locomotor disorders in various farms in Dakahlia and Sharkia Governorates, Egypt. Additionally, we assessed, for the first time, the in vitro antimicrobial effectiveness of marjoram, garlic, ginger and cinnamon essential oils (EOs) against MDR and multivirulent bacterial isolates as well as the in vivo efficiency of the most effective antibiotics and EOs either separately or in combination in the treatment of experimentally induced poultry leg disorders. The overall prevalence rates of S. aureus, E. coli, Salmonella species, and M. synoviae were 54, 48, 36, and 2%, respectively. Salmonella species and S. aureus prevailed among ducks and broilers (36 and 76%, respectively). Notably, MDR was observed in 100, 91.7, 81.1, and 78.5% of M. synoviae, E. coli, Salmonella, and S. aureus isolates, respectively. Our in vitro results displayed that marjoram was the most forceful EO against MDR and multivirulent chicken vancomycin-resistant S. aureus (VRSA) and duck S. Typhimurium isolates. The current in vivo results declared that marjoram in combination with florfenicol or amoxicillin/clavulanic acid succeeded in relieving the induced duck and chicken leg disorders caused by S. Typhimurium and VRSA, respectively. This was evidenced by improvement in the clinical and histopathological pictures with a reduction of bacterial loads in the experimental birds. Our encountered successful in vitro and in vivo synergistic effectiveness of marjoram combined with florfenicol or amoxicillin/clavulanic acid recommends their therapeutic application for leg disorders and offers opportunities for reducing the antibiotics usage in the poultry industry.
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Affiliation(s)
- Naglaa F S Awad
- Department of Avian and Rabbit Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Marwa I Abd El-Hamid
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt.
| | - Nehal M Nabil
- Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Dokki, Giza 12618, Egypt
| | - Maram M Tawakol
- Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Dokki, Giza 12618, Egypt
| | - Samah Eid
- Department of Bacteriology, Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Dokki, Giza 12618, Egypt
| | - Mayasar I Al-Zaban
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Heba Farouk
- Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Agriculture Research Center (ARC), Dokki, Giza 12618, Egypt
| | - Shadi A Zakai
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Amr Elkelish
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia; Department of Botany, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
| | - Mona S Ibrahim
- Department of Poultry Diseases, Animal Health Research Institute (AHRI), Mansoura Laboratory, Agriculture Research Center (ARC), Mansoura, Egypt
| | - Hanim A Mahmoud
- Department of Bacteriology, Animal Health Research Institute (AHRI), Mansoura Laboratory, Agriculture Research Center (ARC), Mansoura, Egypt
| | - Sanaa M Salem
- Department of Pathology, Animal Health Research Institute (AHRI), Zagazig Branch, Agriculture Research Center (ARC), Zagazig 44516, Egypt
| | - Hala M Ismail
- Department of Pathology, Animal Health Research Institute (AHRI), Mansoura Laboratory, Agriculture Research Center (ARC), Mansoura, Egypt
| | - Rehab I Hamed
- Department of Poultry Diseases, Reference Laboratory for Quality Control on Poultry Production (RLQP), Animal Health Research Institute (AHRI), Zagazig Branch, Agriculture Research Center (ARC), Zagazig 44516, Egypt
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8
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Amassmoud O, Abbad I, Iriti M, Hassani L, Mezrioui N, Abbad A. Antibacterial Activity of Essential Oils Combinations based on Thymus broussonnetii, and Their Synergism with some Antibiotics. Curr Microbiol 2023; 80:398. [PMID: 37910319 PMCID: PMC10620311 DOI: 10.1007/s00284-023-03510-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 09/29/2023] [Indexed: 11/03/2023]
Abstract
The present study aimed to evaluate the antibacterial activity of the essential oil (EO) of Moroccan endemic Thymus broussonnetii alone, and in combination with EOs obtained from selected medicinal plants, namely Myrtus communis, Artemisia herba alba, Thymus pallidus, Thymus satureioides, Teucrium polium, and Rosmarinus officinalis. The synergistic interactions between the most effective combinations based on T. broussonnetii EO with two conventional antibiotics (streptomycin and ciprofloxacin) were also investigated. T. broussonnetii EO possessed a higher inhibitory activity against tested pathogenic bacteria with inhibition zone diameter (IZ) ranging from 21.61 ± 0.03 to 40.09 ± 0.02 mm, and MIC values between 0.140 mg/mL and 0.280 mg/mL. M. communis, A. herba alba, T. pallidus, T. satureioides, T. polium, and R. officinalis EOs showed moderate to weak antibacterial activity. Among tested EO mixtures, the highest synergistic antibacterial effect was recorded with the EO combination of T. broussonnetii and T. pallidus against S. aureus, E. coli, and S. enterica (FICI = 0.258). This EO combination was also the most effective mixture to synergistically enhance the antibacterial activity of the two antibiotics with up to a 128-fold increase, particularly against the gram-negative E. coli. These findings suggest that T. broussonnetii EO may be an interesting source of natural antimicrobials, for use in combination therapies with other plant EOs, and with conventional antimicrobial drugs to tackle the emergence of multidrug-resistant bacteria.
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Affiliation(s)
- Oumaima Amassmoud
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, (Labeled Research Unit‑CNRST N°4), Cadi Ayyad University, Marrakech, Morocco
| | - Imane Abbad
- Faculty of Sciences Semlalia, University Cadi Ayyad, Marrakech, Morocco
| | - Marcello Iriti
- Department of Biomedical, Surgical and Dental Sciences, Università Degli Studi Di Milano, 20142, Milan, Italy.
- National Interuniversity Consortium of Materials Science and Technology, Via G. Giusti 9, 50121, Florence, Italy.
| | - Lahcen Hassani
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, (Labeled Research Unit‑CNRST N°4), Cadi Ayyad University, Marrakech, Morocco
| | - Noureddine Mezrioui
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, (Labeled Research Unit‑CNRST N°4), Cadi Ayyad University, Marrakech, Morocco
| | - Abdelaziz Abbad
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, (Labeled Research Unit‑CNRST N°4), Cadi Ayyad University, Marrakech, Morocco
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Mohamed AL, El-Zawahry M, Hassabo AG, Abd El-Aziz E. Encapsulated lemon oil and metal nanoparticles in biopolymer for multifunctional finishing of cotton and wool fabrics. INDUSTRIAL CROPS AND PRODUCTS 2023; 204:117373. [DOI: 10.1016/j.indcrop.2023.117373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Zafar A, Wasti Y, Majid M, Muntaqua D, Bungau SG, Haq IU. Artemisia brevifolia Wall. Ex DC Enhances Cefixime Susceptibility by Reforming Antimicrobial Resistance. Antibiotics (Basel) 2023; 12:1553. [PMID: 37887253 PMCID: PMC10604168 DOI: 10.3390/antibiotics12101553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023] Open
Abstract
(1) Background: A possible solution to antimicrobial resistance (AMR) is synergism with plants like Artemisia brevifolia Wall. ex DC. (2) Methods: Phytochemical quantification of extracts (n-hexane (NH), ethyl acetate (EA), methanol (M), and aqueous (Aq)) was performed using RP-HPLC and chromogenic assays. Extracts were screened against resistant clinical isolates via disc diffusion, broth dilution, the checkerboard method, time-kill, and protein quantification assays. (3) Results: M extract had the maximum phenolic (15.98 ± 0.1 μg GAE/mgE) and flavonoid contents (9.93 ± 0.5 μg QE/mgE). RP-HPLC displayed the maximum polyphenols in the M extract. Secondary metabolite determination showed M extract to have the highest glycosides, alkaloids, and tannins. Preliminary resistance profiling indicated that selected isolates were resistant to cefixime (MIC 20-40 µg/mL). Extracts showed moderate antibacterial activity (MIC 60-100 µg/mL). The checkerboard method revealed a total synergy between EA extract and cefixime with 10-fold reductions in cefixime dose against resistant P. aeruginosa and MRSA. Moreover, A. brevifolia extracts potentiated the antibacterial effect of cefixime after 6 and 9 h. The synergistic combination was non- to slightly hemolytic and could inhibit bacterial protein in addition to cefixime disrupting the cell wall, thus making it difficult for bacteria to survive. (4) Conclusion: A. brevifolia in combination with cefixime has the potential to inhibit AMR.
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Affiliation(s)
- Aroosa Zafar
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.Z.); (Y.W.)
- Cadson College of Pharmacy, Kharian 50090, Pakistan
| | - Yusra Wasti
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.Z.); (Y.W.)
| | - Muhammad Majid
- Faculty of Pharmacy, Hamdard University, Islamabad 45550, Pakistan;
| | - Durdana Muntaqua
- Shifa College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan;
| | - Simona Gabriela Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
- Doctoral School of Biomedical Sciences, University of Oradea, 410087 Oradea, Romania
| | - Ihsan ul Haq
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (A.Z.); (Y.W.)
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El Midaoui A, Khallouki F, Couture R, Moldovan F, Ismael MA, Ongali B, Akoume MY, Alem C, Ait Boughrous A, Zennouhi W, Roqai MC, Hajji L, Ghzaiel I, Vejux A, Lizard G. Thymus atlanticus: A Source of Nutrients with Numerous Health Benefits and Important Therapeutic Potential for Age-Related Diseases. Nutrients 2023; 15:4077. [PMID: 37764861 PMCID: PMC10534698 DOI: 10.3390/nu15184077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
Thymus atlanticus (Lamiaceae) is a plant endemic to the Mediterranean basin that is found in significant quantities in the arid regions of Morocco. Thymus atlanticus is used in traditional medicine to treat infectious and non-infectious diseases. It is also used for the isolation of essential oils and for the seasoning of many dishes in the Mediterranean diet. The major constituents of Thymus atlanticus are saponins, flavonoids, tannins, alkaloids, various simple and hydroxycinnamic phenolic compounds, and terpene compounds. Several of these compounds act on signaling pathways of oxidative stress, inflammation, and blood sugar, which are parameters often dysregulated during aging. Due to its physiochemical characteristics and biological activities, Thymus atlanticus could be used for the prevention and/or treatment of age-related diseases. These different aspects are treated in the present review, and we focused on phytochemistry and major age-related diseases: dyslipidemia, cardiovascular diseases, and type 2 diabetes.
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Affiliation(s)
- Adil El Midaoui
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3C 3J7, Canada; (R.C.); (B.O.)
- Department of Biology, Faculty of Sciences and Techniques, Errachidia, Moulay Ismail University of Meknes, Meknes 50050, Morocco; (F.K.); (A.A.B.); (W.Z.)
| | - Farid Khallouki
- Department of Biology, Faculty of Sciences and Techniques, Errachidia, Moulay Ismail University of Meknes, Meknes 50050, Morocco; (F.K.); (A.A.B.); (W.Z.)
| | - Réjean Couture
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3C 3J7, Canada; (R.C.); (B.O.)
| | - Florina Moldovan
- Research Center of CHU Sainte Justine, Faculty of Dentistry, Université de Montréal, Montreal, QC H3T 1J4, Canada; (F.M.); (M.Y.A.)
| | | | - Brice Ongali
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3C 3J7, Canada; (R.C.); (B.O.)
| | - Marie Yvonne Akoume
- Research Center of CHU Sainte Justine, Faculty of Dentistry, Université de Montréal, Montreal, QC H3T 1J4, Canada; (F.M.); (M.Y.A.)
| | - Chakib Alem
- Research Team in Biochemistry and Natural Resources, Faculty of Sciences and Techniques, Moulay Ismail University of Meknes, Meknes 20250, Morocco;
| | - Ali Ait Boughrous
- Department of Biology, Faculty of Sciences and Techniques, Errachidia, Moulay Ismail University of Meknes, Meknes 50050, Morocco; (F.K.); (A.A.B.); (W.Z.)
| | - Wafa Zennouhi
- Department of Biology, Faculty of Sciences and Techniques, Errachidia, Moulay Ismail University of Meknes, Meknes 50050, Morocco; (F.K.); (A.A.B.); (W.Z.)
| | - Mhammed Chaoui Roqai
- Ecole des Hautes Etudes de Biotechnologie et de Santé (EHEB), 183 Bd de la Résistance, Casablanca 20250, Morocco;
| | - Lhoussain Hajji
- Laboratory of Bioactives and Environmental Health, Faculty of Sciences, Moulay Ismail University, Meknes 50050, Morocco;
| | - Imen Ghzaiel
- Laboratory “Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism”, Bio-peroxIL/EA7270, Université de Bourgogne/Inserm, 21000 Dijon, France; (I.G.); (A.V.)
| | - Anne Vejux
- Laboratory “Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism”, Bio-peroxIL/EA7270, Université de Bourgogne/Inserm, 21000 Dijon, France; (I.G.); (A.V.)
| | - Gérard Lizard
- Laboratory “Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism”, Bio-peroxIL/EA7270, Université de Bourgogne/Inserm, 21000 Dijon, France; (I.G.); (A.V.)
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12
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Bashir O, Amin T, Hussain SZ, Naik H, Goksen G, Wani AW, Manzoor S, Malik A, Wani FJ, Proestos C. Development, characterization and use of rosemary essential oil loaded water-chestnut starch based nanoemulsion coatings for enhancing post-harvest quality of apples var. Golden delicious. Curr Res Food Sci 2023; 7:100570. [PMID: 37701633 PMCID: PMC10493510 DOI: 10.1016/j.crfs.2023.100570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/15/2023] [Accepted: 08/17/2023] [Indexed: 09/14/2023] Open
Abstract
The study aimed at evaluating the influence of water-chestnut starch-based coatings loaded with rosemary essential oil (REO) at concentrations of 0.10%, 0.25% and 0.50% (w/v) on postharvest cold storage stability of apple var. Golden delicious for 120 days. Average droplet diameter of nanoemulsions was in range of 315-450 nm and it increased with increase in the REO concentration. Minimum weight loss was observed in fruits treated with coating material containing 0.50% REO. Samples coated with starch+0.50% REO exhibited highest firmness value of 68.22 ± 1.02 N under controlled atmosphere storage (CAS). Anthocyanins, ascorbic acid, total phenolic content and antioxidant activity were retained in all samples coated with formulated emulsion. Antifungal assay against Pencillium expansum indicated that 0.50% REO had maximum antifungal activity. Increase in REO concentration from 0.10 to 0.50% in starch coating formulations resulted in reduced lesion diameter in coated samples under both the storage conditions. Lesion diameter (LD) was found highest in control (39.40 ± 0.20 mm) under ambient conditions. Coated fruit samples showed a significant (p≤0.05) reduction in LD under both the ambient and CAS conditions however, more pronounced effect was reported under CAS. Fruits coated with edible coatings enriched with different REO concentrations under CAS exhibited significantly (p≤0.05) lower chilling injury index (ST+0.50%REO < ST+0.25%REO<0.10%REO) compared to control.
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Affiliation(s)
- Omar Bashir
- Department of Food Technology and Nutrition, Lovely Professional University, Punjab, 144402, India
| | - Tawheed Amin
- Division of Food Science and Technology, Sher e Kashmir University of Agricultural Sciences and Technology Kashmir, Shalimar, 190025, India
| | - Syed Zameer Hussain
- Division of Food Science and Technology, Sher e Kashmir University of Agricultural Sciences and Technology Kashmir, Shalimar, 190025, India
| | - H.R. Naik
- Division of Food Science and Technology, Sher e Kashmir University of Agricultural Sciences and Technology Kashmir, Shalimar, 190025, India
| | - Gulden Goksen
- Department of Food Technology, Vocational School of Technical Sciences at Mersin Tarsus Organized Industrial Zone, Tarsus University, 33100, Mersin, Turkey
| | - Abdul Waheed Wani
- Department of Horticulture, Lovely Professional University, Punjab, 144402, India
| | - Sobiya Manzoor
- Division of Food Science and Technology, Sher e Kashmir University of Agricultural Sciences and Technology Kashmir, Shalimar, 190025, India
| | - A.R. Malik
- Division of Fruit Science, Sher e Kashmir University of Agricultural Sciences and Technology, Shalimar, 190025, India
| | - Fehim Jeelani Wani
- Division of Agricultural Economics and Statistics, Faculty of Agriculture, Sher e Kashmir University of Agricultural Sciences and Technology, Kashmir, India
| | - Charalampos Proestos
- Food Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zographou, 15771 Athens, Greece
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13
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Palla F, Bucchini AEA, Giamperi L, Marino P, Raimondo FM. Plant Extracts as Antimicrobial Agents in Sustainable Conservation of Erythrina caffra (Fabaceae) Historical Trees. Antibiotics (Basel) 2023; 12:1098. [PMID: 37508194 PMCID: PMC10376849 DOI: 10.3390/antibiotics12071098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Microbial colonization plays a relevant role in the biodegradation and biodeterioration of cultural and natural heritage, representing a revealing problem in conservation strategy. In this study, the essential oil (EO) and hydro-alcoholic extract (HAE) of Origanum vulgare L. (Lamiaceae), an aromatic perennial plant, representative of the Mediterranean basin, growing spontaneously and cultivated all over the world, were analysed. Natural products, such as essential oil and hydro-alcoholic extract, have strong antiseptic and antimicrobial properties and are ad hoc applied for the sustainable conservation of Erithryna caffra (Fabaceae). The main taxa revealed in the damaging of these arboreal heritage, are Bacillus sp., Streptomyces sp. and Terribacillus sp. (as bacteria), Alternaria sp., Aspergillus sp. and Chaetomium sp. (as fungi). GS-MS analysis identified carvacrol, thymol and their biosynthetic precursors γ-terpinene and p-cymene, as main components, and the antimicrobial efficiency assayed by in vitro methods (Agar Dish Diffusion, Well Plate Diffusion). In this study, by combining the application/exposure of both HAE and EO, the bacterial and fungal colonies development has been in vitro countered. The results confirm the possible use of plant products as a valid alternative to the traditional synthetic chemical biocides, with full respect to the environment.
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Affiliation(s)
- Franco Palla
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies/Section of Botany, Anthropology and Zoology, University of Palermo, Via Archirafi 38, 90123 Palermo, Italy
| | - Anahì E A Bucchini
- Botanical Garden, Department of Biomolecular Sciences, University of Urbino, Via Bramante 28, 61029 Urbino, Italy
- PLANTA/Center for Research, Documentation, and Training, Via Serraglio Vecchio 28, 90123 Palermo, Italy
| | - Laura Giamperi
- Botanical Garden, Department of Biomolecular Sciences, University of Urbino, Via Bramante 28, 61029 Urbino, Italy
- PLANTA/Center for Research, Documentation, and Training, Via Serraglio Vecchio 28, 90123 Palermo, Italy
| | - Pasquale Marino
- PLANTA/Center for Research, Documentation, and Training, Via Serraglio Vecchio 28, 90123 Palermo, Italy
| | - Francesco M Raimondo
- PLANTA/Center for Research, Documentation, and Training, Via Serraglio Vecchio 28, 90123 Palermo, Italy
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14
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Bakó C, Balázs VL, Kerekes E, Kocsis B, Nagy DU, Szabó P, Micalizzi G, Mondello L, Krisch J, Pethő D, Horváth G. Flowering phenophases influence the antibacterial and anti-biofilm effects of Thymus vulgaris L. essential oil. BMC Complement Med Ther 2023; 23:168. [PMID: 37226152 DOI: 10.1186/s12906-023-03966-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/19/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Essential oils are becoming increasingly popular in medicinal applications because of their antimicrobial effect. Thymus vulgaris L. (Lamiaceae) is a well-known and widely cultivated medicinal plant, which is used as a remedy for cold, cough and gastrointestinal symptoms. Essential oil content of thyme is responsible for its antimicrobial activity, however, it has been reported that the chemical composition of essential oils influences its biological activity. In order to explore flowering phenophases influence on the chemical composition of thyme essential oil and its antibacterial and anti-biofilm activity, plant materials were collected at the beginning of flowering, in full bloom and at the end of flowering periods in 2019. METHODS Essential oils from fresh and dried plant materials were distilled and analyzed with gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detection (GC-FID). The antibacterial activity was performed by broth microdilution and thin layer chromatography-direct bioautography (TLC-DB) assays and the anti-biofilm effect by crystal violet assay, respectively. Scanning electron microscopy was applied to illustrate the cellular changes of bacterial cells after essential oil treatment. RESULTS Thymol (52.33-62.46%) was the main component in the thyme essential oils. Thyme oil distilled from fresh plant material and collected at the beginning of flowering period exerted the highest antibacterial and anti-biofilm activity against Haemophilus influenzae, H. parainfluenzae and Pseudomonas aeruginosa. CONCLUSION The different flowering periods of Thymus vulgaris influence the antibacterial and anti-biofilm activity of its essential oils, therefore, the collection time has to be taken into consideration and not only the full bloom, but the beginning of flowering period may provide biological active thyme essential oil.
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Affiliation(s)
- Csongor Bakó
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624, Hungary
| | - Viktória Lilla Balázs
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624, Hungary
| | - Erika Kerekes
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Szeged, H-6726, Hungary
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, H-7624, Hungary
| | - Dávid U Nagy
- Institute of Geobotany and Plant Ecology, Martin-Luther University, D-06108, Halle, Germany
| | - Péter Szabó
- Institute of Geography and Earth Sciences, Faculty of Sciences, University of Pécs, Pécs, H-7624, Hungary
| | - Giuseppe Micalizzi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98168, Italy
| | - Luigi Mondello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98168, Italy
- Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98168, Italy
- Unit of Food Science and Nutrition, Department of Medicine, University Campus Bio-Medico of Rome, Rome, 00128, Italy
| | - Judit Krisch
- Department of Food Engineering, Faculty of Engineering, University of Szeged, Szeged, H-6724, Hungary
| | - Dóra Pethő
- Department of MOL Hydrocarbon and Coal Processing, University of Pannonia, Veszprém, H-8200, Hungary
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, H-7624, Hungary.
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15
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Rai S, Kumar M, Jas R, Mandal GP, Samanta I, Rajendar M, Tripura S, Das SK, Mondal M, Mandal DK. Antibacterial effect of kitchen herbs against pathogenic multidrug-resistant E. coli isolates from calf diarrhoea. Trop Anim Health Prod 2023; 55:211. [PMID: 37204503 DOI: 10.1007/s11250-023-03628-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/09/2023] [Indexed: 05/20/2023]
Abstract
Calf diarrhoea remains the biggest challenge both in the small and large farms. Infectious diarrhoea is associated with many pathogens, Escherichia coli being one, but majority are systematically treated with antibiotics. Since antimicrobial resistance (AMR) is a growing menace, the need to find alternative prophylactic solutions using popular kitchen herbs such as Trachyspermum ammi (carom seeds), Curcuma longa (turmeric) and cinnamon (Cinnamomum sp.) extracts is been investigated against virulent form of E. coli isolated from calf diarrhoea. The virulence factors identified in these isolates were ST (32.5%), LT (20%), eaeA (15%), stx1 (2.5%) and stx2 (5%) with the occurrence of the most common serogroups as O18 (15%) followed by O111 (12.5%). Highest resistance was seen with beta lactam + beta lactamase inhibitor (amoxicillin/clavulanic acid) followed by beta lactams (ampicillin, cefuroxime and cefepime). The zone of inhibition due to cinnamon (methanol) and carom seed (ethanol) extracts (500 to 250 μg/mL concentration) on E. coli bacteria was >19 mm, respectively. Turmeric, cinnamon and carom had the potency of inhibiting the pathogenic E. coli which maybe suggestive of its use in calf diets as prophylaxis against diarrhoea.
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Affiliation(s)
- Saroj Rai
- Indian Council of Agricultural Research - National Dairy Research Institute, Eastern Regional Station, Kalyani, WB, 741235, India.
| | - M Kumar
- Indian Council of Agricultural Research - National Dairy Research Institute, Eastern Regional Station, Kalyani, WB, 741235, India
| | - R Jas
- West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, WB, India
| | - G P Mandal
- West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, WB, India
| | - I Samanta
- West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, WB, India
| | - M Rajendar
- Indian Council of Agricultural Research - National Dairy Research Institute, Eastern Regional Station, Kalyani, WB, 741235, India
| | - S Tripura
- Indian Council of Agricultural Research - National Dairy Research Institute, Eastern Regional Station, Kalyani, WB, 741235, India
| | - S K Das
- Indian Council of Agricultural Research - National Dairy Research Institute, Eastern Regional Station, Kalyani, WB, 741235, India
| | - M Mondal
- Indian Council of Agricultural Research - National Dairy Research Institute, Eastern Regional Station, Kalyani, WB, 741235, India
| | - D K Mandal
- Indian Council of Agricultural Research - National Dairy Research Institute, Eastern Regional Station, Kalyani, WB, 741235, India
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16
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Dofini Magnini R, Pedinielli F, Vergalli J, Ouedraogo N, Remy S, Hilou A, Brunel JM, Pagès JM, Davin-Regli A. Acacia senegal Budmunchiamines as a Potential Adjuvant for Rejuvenating Phenicol Activities towards Escherichia coli-Resistant Strains. Int J Mol Sci 2023; 24:ijms24108790. [PMID: 37240134 DOI: 10.3390/ijms24108790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 04/26/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
The continuous emergence of bacterial resistance alters the activities of different antibiotic families and requires appropriate strategies to solve therapeutic impasses. Medicinal plants are an attractive source for researching alternative and original therapeutic molecules. In this study, the fractionation of natural extracts from A. senegal and the determination of antibacterial activities are associated with molecular networking and tandem mass spectrometry (MS/MS) data used to characterize active molecule(s). The activities of the combinations, which included various fractions plus an antibiotic, were investigated using the "chessboard" test. Bio-guided fractionation allowed the authors to obtain individually active or synergistic fractions with chloramphenicol activity. An LC-MS/MS analysis of the fraction of interest and molecular array reorganization showed that most identified compounds are Budmunchiamines (macrocyclic alkaloids). This study describes an interesting source of bioactive secondary metabolites structurally related to Budmunchiamines that are able to rejuvenate a significant chloramphenicol activity in strains that produce an AcrB efflux pump. They will pave the way for researching new active molecules for restoring the activity of antibiotics that are substrates of efflux pumps in enterobacterial-resistant strains.
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Affiliation(s)
- René Dofini Magnini
- UMR_MD1, U-1261, INSERM, SSA, IRBA, MCT, Faculté de Pharmacie, Université Aix-Marseille, 13385 Marseille, France
- Laboratoire de Recherche-Développement de Phytomédicaments et Médicaments (LR-D/PM), IRSS, CNRST, Département MEPHATRA-PH, Ouagadougou 03 BP 7047, Burkina Faso
- Laboratoire de Biochimie et de Chimie Appliquée (LABIOCA), Université Joseph Ki-Zerbo, Ouagadougou 03 BP 7021, Burkina Faso
| | - François Pedinielli
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université Reims-Champagne-Ardenne, UFR Sciences, BP 1039, CEDEX 2, 51687 Reims, France
| | - Julia Vergalli
- UMR_MD1, U-1261, INSERM, SSA, IRBA, MCT, Faculté de Pharmacie, Université Aix-Marseille, 13385 Marseille, France
| | - Noufou Ouedraogo
- Laboratoire de Recherche-Développement de Phytomédicaments et Médicaments (LR-D/PM), IRSS, CNRST, Département MEPHATRA-PH, Ouagadougou 03 BP 7047, Burkina Faso
| | - Simon Remy
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université Reims-Champagne-Ardenne, UFR Sciences, BP 1039, CEDEX 2, 51687 Reims, France
| | - Adama Hilou
- Laboratoire de Biochimie et de Chimie Appliquée (LABIOCA), Université Joseph Ki-Zerbo, Ouagadougou 03 BP 7021, Burkina Faso
| | - Jean-Michel Brunel
- UMR_MD1, U-1261, INSERM, SSA, IRBA, MCT, Faculté de Pharmacie, Université Aix-Marseille, 13385 Marseille, France
| | - Jean-Marie Pagès
- UMR_MD1, U-1261, INSERM, SSA, IRBA, MCT, Faculté de Pharmacie, Université Aix-Marseille, 13385 Marseille, France
| | - Anne Davin-Regli
- UMR_MD1, U-1261, INSERM, SSA, IRBA, MCT, Faculté de Pharmacie, Université Aix-Marseille, 13385 Marseille, France
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17
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Lavandula angustifolia Essential Oils as Effective Enhancers of Fluconazole Antifungal Activity against Candida albicans. Molecules 2023; 28:molecules28031176. [PMID: 36770842 PMCID: PMC9921790 DOI: 10.3390/molecules28031176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/27/2023] Open
Abstract
The increasing prevalence of Candida albicans resistance to commercial antifungal agents in recent decades has prompted modern medicine and veterinary medicine to search for combined treatment options. The aim of the study was to determine the activity of essential oils from different cultivars and morphological parts of the medicinal lavender (Lavandula angustifolia) in combination with fluconazole against Candida albicans ATCC 10231 strain. The effect of the combination of lavender essential oil with fluconazole was tested using the checkerboard method, and the obtained results were interpreted on the basis of fractional inhibitory concentration indices (FICIs). A synergistic interaction was found for all combinations of fluconazole with essential oils isolated both from flowers and leafy stalks of two tested lavender cultivars: 'Blue River' and 'Ellagance Purple'. The observed enhancement effect of fluconazole antifungal activity was significantly stronger in the case of essential oils obtained from flowers and leafy stalks of 'Blue River' cultivar. Analogous studies were performed for linalool, one of the main components of lavender essential oils, and a similar synergistic interaction with fluconazole was found.
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18
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Mohamed AL, Sedik A, Mosaad MM, Othman HA. Imparting the mosquito-repellent and fragrance properties to linen fabric using different natural plants oils without or via silica encapsulation technique. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2022.100742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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19
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Panda SK, Buroni S, Swain SS, Bonacorsi A, da Fonseca Amorim EA, Kulshrestha M, da Silva LCN, Tiwari V. Recent advances to combat ESKAPE pathogens with special reference to essential oils. Front Microbiol 2022; 13:1029098. [PMID: 36560948 PMCID: PMC9763703 DOI: 10.3389/fmicb.2022.1029098] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/01/2022] [Indexed: 12/12/2022] Open
Abstract
Biofilm-associated bacteria, especially ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.), are a serious challenge worldwide. Due to the lack of discovery of novel antibiotics, in the past two decades, it has become necessary to search for new antibiotics or to study synergy with the existing antibiotics so as to counter life-threatening infections. Nature-derived compounds/based products are more efficient than the chemically synthesized ones with less resistance and lower side effects. In this descriptive review, we discuss the most promising therapeutics for the treatment of ESKAPE-related biofilms. The first aspect includes different types of natural agents [botanical drugs, essential oils (EOs), antimicrobial peptides, bacteriophages, and endolysins] effective against ESKAPE pathogens. The second part of the review deals with special references to EOs/essential oil components (EOCs) (with some exclusive examples), mode of action (via interfering in the quorum-sensing pathways, disruption of biofilm and their inhibitory concentrations, expression of genes that are involved, other virulence factors), existing in literature so far. Moreover, different essential oils and their major constituents were critically discussed using in vivo models to target ESKAPE pathogens along with the studies involving existing antibiotics.
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Affiliation(s)
- Sujogya Kumar Panda
- Centre of Environment Studies, Climate Change and Public Health, RUSA 2.0, Utkal University, Vani Vihar, Bhubaneswar, Odisha, India
| | - Silvia Buroni
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Shasank Sekhar Swain
- Division of Microbiology and Noncommunicable Diseases (NCDs), Indian Council of Medical Research (ICMR)–Regional Medical Research Centre, Bhubaneswar, Odisha, India
| | - Andrea Bonacorsi
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | | | - Mukta Kulshrestha
- Department of Biochemistry, Central University of Rajasthan, Ajmer, Rajasthan, India
| | | | - Vishvanath Tiwari
- Department of Biochemistry, Central University of Rajasthan, Ajmer, Rajasthan, India,*Correspondence: Vishvanath Tiwari,
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El Kheloui R, Laktib A, Elmegdar S, Fayzi L, Zanane C, Msanda F, Cherifi K, Latrache H, Mimouni R, Hamadi F. Anti-adhesion and antibiofilm activities of Lavandula mairei humbert essential oil against Acinetobacter baumannii isolated from hospital intensive care units. BIOFOULING 2022; 38:953-964. [PMID: 36537173 DOI: 10.1080/08927014.2022.2149326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 11/01/2022] [Accepted: 11/12/2022] [Indexed: 06/17/2023]
Abstract
This study aimed to assess, for the first time, the anti-adhesion and antibiofilm effects of Lavandula mairei Humbert essential oil against multidrug resistant Acinetobacter baumannii. Scanning electron microscope was used for visualizing its antibiofilm activity and the effect of this oil on surface physicochemical parameters was examined as a possible anti-adhesive target. Chemical analysis of Lavandulaa mairei essential oil showed a high content of carvacrol composition (79.12%). The oil tested exhibited antibacterial efficacy with inhibition diameters of 33 to 37.33 mm and minimum inhibitory and bactericidal concentrations of 1.56 µl ml-1. The oil inhibited adhesion by 83.66%, detach 73.30% of adherent cells and eliminated 64.02% of the biofilm compared to the untreated control. Lavandula mairei essential oil has proven its possible application as a preventive strategy by intervening in the initial adhesion of Acinetobacter baumannii to polystyrene.
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Affiliation(s)
- Raja El Kheloui
- Laboratory of Microbial Biotechnology and Plants Protection, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Asma Laktib
- Laboratory of Microbial Biotechnology and Plants Protection, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Soufiane Elmegdar
- Laboratory of Microbial Biotechnology and Plants Protection, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Lahbib Fayzi
- Laboratory of Biotechnologies and Valorization of Natural Resources, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Chorouk Zanane
- Laboratory of Bioprocess and Bio-interfaces, Faculty of Sciences and Techniques, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Fouad Msanda
- Laboratory of Biotechnologies and Valorization of Natural Resources, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Khalil Cherifi
- Laboratory of Biotechnologies and Valorization of Natural Resources, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Hassan Latrache
- Laboratory of Bioprocess and Bio-interfaces, Faculty of Sciences and Techniques, Sultan Moulay Slimane University, Beni Mellal, Morocco
| | - Rachida Mimouni
- Laboratory of Microbial Biotechnology and Plants Protection, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | - Fatima Hamadi
- Laboratory of Microbial Biotechnology and Plants Protection, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
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A Narrative Review on the Bioactivity and Health Benefits of Alpha-Phellandrene. Sci Pharm 2022. [DOI: 10.3390/scipharm90040057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Aromatic essential oils play a significant role in pharmaceuticals, food additives, cosmetics, and perfumery. Essential oils mostly comprise aliphatic hydrocarbons, monoterpenoids, sesquiterpenoids and diterpenes. Plant extracts comprise a complex mixture of terpenes, terpenoids, aliphatic and phenol-derived aromatic components. Terpenes are a significant class of hydrocarbons with numerous health benefits. These biological functions of essential oil components are examined in vitro and in vivo studies. Some studies evaluated the properties and functions of α-phellandrene (α-PHE). Detailed evaluation to determine the functions of α-PHE over a spectrum of health care domains needs to be initiated. Its possible mechanism of action in a biological system could reveal the future opportunities and challenges in using α-PHE as a pharmaceutical candidate. The biological functions of α-PHE are reported, including anti-microbial, insecticidal, anti-inflammatory, anti-cancer, wound healing, analgesic, and neuronal responses. The present narrative review summarizes the synthesis, biotransformation, atmospheric emission, properties, and biological activities of α-PHE. The literature review suggests that extended pre-clinical studies are necessary to develop α-PHE-based adjuvant therapeutic approaches.
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Pajares-Chamorro N, Hammer ND, Chatzistavrou X. Materials for restoring lost Activity: Old drugs for new bugs. Adv Drug Deliv Rev 2022; 186:114302. [PMID: 35461913 DOI: 10.1016/j.addr.2022.114302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 04/04/2022] [Accepted: 04/12/2022] [Indexed: 11/01/2022]
Abstract
The escalation of bacterial resistance to conventional medical antibiotics is a serious concern worldwide. Improvements to current therapies are urgently needed to address this problem. The synergistic combination of antibiotics with other agents is a strategic solution to combat multi-drug-resistant bacteria. Although these combinations decrease the required high dosages and therefore, reduce the toxicity of both agents without compromising the bactericidal effect, they cannot stop the development of further resistance. Recent studies have shown certain elements restore the ability of antibiotics to destroy bacteria that have acquired resistance to them. Due to these synergistic activities, organic and inorganic molecules have been investigated with the goal of restoring antibiotics in new approaches that mitigate the risk of expanding resistance. Herein, we summarize recent studies that restore antibiotics once thought to be ineffective, but have returned to our armamentarium through innovative, combinatorial efforts. A special focus is placed on the mechanisms that allow the synergistic combinations to combat bacteria. The promising data that demonstrated restoration of antimicrobials, supports the notion to find more combinations that can combat antibiotic-resistant bacteria.
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Liu Y, Wang K, Pan L, Chen X. Improved Production of ε-Poly-L-Lysine in Streptomyces albulus Using Genome Shuffling and Its High-Yield Mechanism Analysis. Front Microbiol 2022; 13:923526. [PMID: 35711770 PMCID: PMC9195005 DOI: 10.3389/fmicb.2022.923526] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/09/2022] [Indexed: 11/29/2022] Open
Abstract
ε-Poly-L-lysine (ε-PL), a natural food preservative, has recently gained interest and mainly produced by Streptomyces albulus. Lacking of efficient breeding methods limit ε-PL production improving, knockout byproducts and increase of main product flux strategies as a logical solution to increase yield. However, removing byproduct formation and improving main product synthesis has seen limited success due to the genetic background of ε-PL producing organism is not clear. To overcome this limitation, random mutagenesis continues to be the best way towards improving strains for ε-PL production. Recent advances in Illumina sequencing opened new avenues to understand improved strains. In this work, we used genome shuffling on strains obtained by ribosome engineering to generate a better ε-PL producing strain. The mutant strain SG-86 produced 144.7% more ε-PL than the parent strain M-Z18. Except that SG-86 displayed obvious differences in morphology and ATP compared to parent strain M-Z18. Using Illumina sequencing, we mapped the genomic changes leading to the improved phenotype. Sequencing two strains showed that the genome of the mutant strain was about 2.1 M less than that of the parent strain, including a large number of metabolic pathways, secondary metabolic gene clusters, and gene deletions. In addition, there are many SNPs (single nucleotide polymorphisms) and InDels (insertions and deletions) in the mutant strain. Based on the results of data analysis, a mechanism of ε-PL overproduction in S. albulus SG-86 was preliminarily proposed. This study is of great significance for improving the fermentation performance and providing theoretical guidance for the metabolic engineering construction of ε-PL producing strains.
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Affiliation(s)
- Yongjuan Liu
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.,The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China.,Shandong Energy Institute, Qingdao, China.,Qingdao New Energy Shandong Laboratory, Qingdao, China
| | - Kaifang Wang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Long Pan
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China.,College of Biological Engineering, Henan University of Technology, Zhengzhou, China
| | - Xusheng Chen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
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Li S, Mao Y, Zhang L, Wang M, Meng J, Liu X, Bai Y, Guo Y. Recent advances in microbial ε-poly-L-lysine fermentation and its diverse applications. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:65. [PMID: 35710433 PMCID: PMC9205021 DOI: 10.1186/s13068-022-02166-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The naturally occurring homo-polyamide biopolymer, ε-poly-L-lysine (ε-PL) consists of 25-35 L-lysine residues with amide linkages between α-carboxyl groups and ε-amino groups. ɛ-PL exhibits several useful properties because of its unusual structure, such as biodegradability, water solubility, no human toxicity, and broad-spectrum antibacterial activities; it is widely applied in the fields of food, medicine, clinical chemistry and electronics. However, current industrial production of ε-PL is only performed in a few countries. Based on an analysis of the physiological characteristics of ε-PL fermentation, current advances that enhance ε-PL fermentation, from strain improvement to product isolation are systematically reviewed, focusing on: (1) elucidating the metabolic pathway and regulatory mechanism of ε-PL synthesis; (2) enhancing biosynthetic performance through mutagenesis, fermentation optimization and metabolic engineering; and (3) understanding and improving the biological activity and functional properties of ε-PL. Finally, perspectives on engineering and exploiting ε-PL as a source material for the production of various advanced materials are also discussed, providing scientific guidelines for researchers to further improve the ε-PL fermentation process.
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Affiliation(s)
- Shubo Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Yunren Mao
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Lifei Zhang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Miao Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Jinhao Meng
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Xiaoling Liu
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Yunxia Bai
- College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Yuan Guo
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, 530004, China.
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Li A, Shi C, Qian S, Wang Z, Zhao S, Liu Y, Xue Z. Evaluation of antibiotic combination of Litsea cubeba essential oil on Vibrio parahaemolyticus inhibition mechanism and anti-biofilm ability. Microb Pathog 2022; 168:105574. [PMID: 35561981 DOI: 10.1016/j.micpath.2022.105574] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 05/04/2022] [Accepted: 05/08/2022] [Indexed: 10/18/2022]
Abstract
Vibrio parahaemolyticus (V. parahaemolyticus) is a common pathogen in seafood. The use of antibiotics is a primary tool to prevent and control V. parahaemolyticus in the aquaculture industry. However, V. parahaemolyticus combats the damage caused by antibiotics by forming biofilms under certain conditions. In this study, we analyzed the antibacterial effect and the characteristics of V. parahaemolyticus by experimentally determining the minimum inhibitory concentration (MIC) and the fractional inhibitory concentration index (FICI) values of a combination of the Litsea cubeba essential oil (LCEO) and several commonly used V. parahaemolyticus antibiotics. The bactericidal effect of the essential oil alone and essential oil in combination with the antibiotics were evaluated with time-kill curves. The damage to cell membranes and cell walls were assessed by measuring the content of macromolecules and alkaline phosphatase (AKP) released into the supernatant using V. parahaemolyticus ATCC17802 as the experimental strain. The membrane structure was observed by transmission electron microscopy. The results showed that the MIC value of the LCEO was 1,024 μg/mL, and the LCEO FICI values in combination with tetracycline or oxytetracycline hydrochloride was 0.3125 and 0.75, respectively, indicating synergistic and additive effects. Moreover, LCEO inhibited the growth and promoted the removal of biofilms by reducing the content of hydrophobic and extracellular polysaccharides on the cell surface. This study provides a reference for studying the antibacterial activity of LCEO and the combination of antibiotics to prevent and control the formation of biofilms by V. parahaemolyticus.
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Affiliation(s)
- Anqi Li
- College of Biology and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, PR China
| | - Chenglong Shi
- College of Biology and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, PR China
| | - Senhe Qian
- College of Biology and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, PR China
| | - Zhou Wang
- College of Biology and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, PR China.
| | - Shiguang Zhao
- College of Biology and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, PR China; Xuancheng Industrial Technology, Research Institute of Anhui Polytechnic University, Anhui, Xuancheng, 242000, PR China
| | - Yan Liu
- College of Biology and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, PR China
| | - Zhenglian Xue
- College of Biology and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, PR China
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Tagnaout I, Zerkani H, Hadi N, El Moumen B, El Makhoukhi F, Bouhrim M, Al-Salahi R, Nasr FA, Mechchate H, Zair T. Chemical Composition, Antioxidant and Antibacterial Activities of Thymus broussonetii Boiss and Thymus capitatus (L.) Hoffmann and Link Essential Oils. PLANTS 2022; 11:plants11070954. [PMID: 35406936 PMCID: PMC9003487 DOI: 10.3390/plants11070954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 11/21/2022]
Abstract
Thymus capitatus and Thymus broussonnetii are two Moroccan endemic medicinal plants used traditionally by the local population. The present study aims to investigate their essential oil chemical composition, antioxidant and antibacterial activities. The chemical composition of the essential oils was determined using the GC-MS analysis, the antioxidant activity assessed using DPPH and FRAP methods while the antimicrobial activity was evaluated against nine bacteria species tested (Enterococcus faecalis, Serratia fonticola, Acinetobacter baumannii, Klebsiella oxytoca, sensitive Klebsiella pneumoniae, sensitive Escherichia coli, resistant Escherichia coli, resistant Staphylococcus aureus and Enterobacter aerogenes). The major identified compounds of T. capitatus essential oil where carvacrol (75%) and p-cymene (10.58%) while carvacrol (60.79%), thymol (12.9%), p-cymene (6.21%) and γ-terpinene (4.47%) are the main compounds in T. broussonnetii essential oil. The bioactivity of the essential oils of the two species of thyme was explained by their richness in oxygenated monoterpenes known for their great effectiveness with an IC50 of 3.48 ± 0.05 and 4.88 ± 0.04 μL/mL and EC50 of 0.12 ± 0.01 and 0.20 ± 0.02 μL/mL in the DPPH and FRAP assays, respectively, with an important antibacterial activity. These results encourage the use of these plants as a source of natural antioxidants, and antibacterial additives, to protect food from oxidative damage and to eliminate bacteria that are responsible for nosocomial infections.
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Affiliation(s)
- Imane Tagnaout
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, B.P. 11201 Zitoune, Meknes 50070, Morocco; (H.Z.); (N.H.); (B.E.M.); (F.E.M.); (M.B.); (T.Z.)
- Correspondence: (I.T.); (H.M.)
| | - Hannou Zerkani
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, B.P. 11201 Zitoune, Meknes 50070, Morocco; (H.Z.); (N.H.); (B.E.M.); (F.E.M.); (M.B.); (T.Z.)
| | - Nadia Hadi
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, B.P. 11201 Zitoune, Meknes 50070, Morocco; (H.Z.); (N.H.); (B.E.M.); (F.E.M.); (M.B.); (T.Z.)
| | - Bouchra El Moumen
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, B.P. 11201 Zitoune, Meknes 50070, Morocco; (H.Z.); (N.H.); (B.E.M.); (F.E.M.); (M.B.); (T.Z.)
| | - Fadoua El Makhoukhi
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, B.P. 11201 Zitoune, Meknes 50070, Morocco; (H.Z.); (N.H.); (B.E.M.); (F.E.M.); (M.B.); (T.Z.)
- Laboratoire Centre Eau, Ressources Naturelles, Environnement Et Développement Durable, Faculty of Sciences, University Mohammed V, Rabat B.P. 8007, Rabat 10000, Morocco
| | - Mohamed Bouhrim
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, B.P. 11201 Zitoune, Meknes 50070, Morocco; (H.Z.); (N.H.); (B.E.M.); (F.E.M.); (M.B.); (T.Z.)
| | - Rashad Al-Salahi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Fahd A. Nasr
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Hamza Mechchate
- Laboratory of Inorganic Chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, FI-00014 Helsinki, Finland
- Correspondence: (I.T.); (H.M.)
| | - Touriya Zair
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, B.P. 11201 Zitoune, Meknes 50070, Morocco; (H.Z.); (N.H.); (B.E.M.); (F.E.M.); (M.B.); (T.Z.)
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Dassanayake MK, Khoo TJ, An J. Antibiotic resistance modifying ability of phytoextracts in anthrax biological agent Bacillus anthracis and emerging superbugs: a review of synergistic mechanisms. Ann Clin Microbiol Antimicrob 2021; 20:79. [PMID: 34856999 PMCID: PMC8641154 DOI: 10.1186/s12941-021-00485-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 11/22/2021] [Indexed: 01/17/2023] Open
Abstract
Background and objectives The chemotherapeutic management of infections has become challenging due to the global emergence of antibiotic resistant pathogenic bacteria. The recent expansion of studies on plant-derived natural products has lead to the discovery of a plethora of phytochemicals with the potential to combat bacterial drug resistance via various mechanisms of action. This review paper summarizes the primary antibiotic resistance mechanisms of bacteria and also discusses the antibiotic-potentiating ability of phytoextracts and various classes of isolated phytochemicals in reversing antibiotic resistance in anthrax agent Bacillus anthracis and emerging superbug bacteria. Methods Growth inhibitory indices and fractional inhibitory concentration index were applied to evaluate the in vitro synergistic activity of phytoextract-antibiotic combinations in general. Findings A number of studies have indicated that plant-derived natural compounds are capable of significantly reducing the minimum inhibitory concentration of standard antibiotics by altering drug-resistance mechanisms of B. anthracis and other superbug infection causing bacteria. Phytochemical compounds allicin, oleanolic acid, epigallocatechin gallate and curcumin and Jatropha curcas extracts were exceptional synergistic potentiators of various standard antibiotics. Conclusion Considering these facts, phytochemicals represents a valuable and novel source of bioactive compounds with potent antibiotic synergism to modulate bacterial drug-resistance.
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Affiliation(s)
- Mackingsley Kushan Dassanayake
- School of Pharmacy, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Malaysia.
| | - Teng-Jin Khoo
- School of Pharmacy, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Malaysia
| | - Jia An
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
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Fahed L, Beyrouthy ME, Ouaini N, Eparvier V, Stien D, Vitalini S, Iriti M. Antimicrobial Activity and Synergy Investigation of Hypericum scabrum Essential Oil with Antifungal Drugs. Molecules 2021; 26:molecules26216545. [PMID: 34770954 PMCID: PMC8587137 DOI: 10.3390/molecules26216545] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
The chemical composition of Lebanese Hypericum scabrum essential oil (EO) was analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry (GG-MS). Its antimicrobial activity was evaluated by determining its minimal inhibitory concentrations (MICs) against a Gram-negative and a Gram-positive bacterium, one yeast, and five dermatophytes. H. scabrum EO was most active on filamentous fungi (MIC values of 32-64 µg/mL). Synergy within the oil was investigated by testing each of the following major components on Trichophyton rubrum: α-pinene, limonene, myrcene, β-pinene and nonane, as well as a reconstructed EO. The antifungal activity of the natural oil could not be reached, meaning that its activity might be due, in part, to minor constituent(s). The interactions between H. scabrum EO and commercially available antifungals were assessed by the checkerboard test. A synergistic effect was revealed in the combination of the EO with amphotericin B.
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Affiliation(s)
- Layal Fahed
- UPR 2301, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France; (L.F.); (V.E.); (D.S.)
- Natural Sciences Department, Faculty of Sciences II, Lebanese University, B.P. 90656, Fanar 15216, Lebanon
| | - Marc El Beyrouthy
- Department of Agricultural Sciences, Holy Spirit University of Kaslik, Jounieh 1200, Lebanon;
- Correspondence: (M.E.B.); (M.I.); Tel.: +961-3826419 (M.E.B.); +39-0250316766 (M.I.)
| | - Naïm Ouaini
- Department of Agricultural Sciences, Holy Spirit University of Kaslik, Jounieh 1200, Lebanon;
| | - Véronique Eparvier
- UPR 2301, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France; (L.F.); (V.E.); (D.S.)
| | - Didier Stien
- UPR 2301, Institut de Chimie des Substances Naturelles, CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France; (L.F.); (V.E.); (D.S.)
- Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Oceanologique, UPMC Univ Paris 06, CNRS, Sorbonne Universités, 66650 Banyuls-sur-Mer, France
| | - Sara Vitalini
- Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, 20133 Milano, Italy;
- Phytochem Laboratory, Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, 20133 Milano, Italy
- National Interuniversity Consortium of Materials Science and Technology, 50121 Firenze, Italy
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, 20133 Milano, Italy;
- Phytochem Laboratory, Department of Agricultural and Environmental Sciences, Università degli Studi di Milano, 20133 Milano, Italy
- National Interuniversity Consortium of Materials Science and Technology, 50121 Firenze, Italy
- BAT Center-Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, Università degli Studi di Napoli Federico II, 80055 Portici, Italy
- Correspondence: (M.E.B.); (M.I.); Tel.: +961-3826419 (M.E.B.); +39-0250316766 (M.I.)
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El Yaagoubi M, Mechqoq H, El Hamdaoui A, Jrv Mukku V, El Mousadik A, Msanda F, El Aouad N. A review on Moroccan Thymus species: Traditional uses, essential oils chemical composition and biological effects. JOURNAL OF ETHNOPHARMACOLOGY 2021; 278:114205. [PMID: 34000364 DOI: 10.1016/j.jep.2021.114205] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/20/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Thymus is among the most important genera in the Lamiaceae family with 215 species and is widely distributed globally, mainly in the Mediterranean region. The genus contains many medicinal plants used in traditional Moroccan medicine for a long time in treating diverse diseases. AIM OF THE REVIEW This review describes the traditional uses, biological activities and chemical composition of essential oils (EOs) obtained from Thymus species growing in Morocco. MATERIALS AND METHODS Information related to the traditional uses, essential oils chemical composition and biological activities on Moroccan Thymus species were obtained using the electronic databases Web of science, Scopus, SciFinder, Pubmed and Google Scholar. RESULTS Moroccan Thymus species have been used in treatment of several diseases, namely diabetes, digestive, circulatory, genital, nervous, urinary, skin and respiratory diseases. Diverse biological activities of Moroccan Thymus species EOs have been reported, such as antibacterial, antifungal, antioxidant, anti-proliferative, anti-tumoral, insecticidal, larvicidal, nematicide, anti-inflammatory, anti-cyanobacterial and anti-acetylcholinesterase. The chemical compositions of Thymus EOs is primarily composed of monoterpenes.
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Affiliation(s)
- Mohamed El Yaagoubi
- Laboratory of Biotechnologies and Valorization of Natural Ressources, Faculty of Sciences, B.P. 8106, Cité Dakhla, Agadir, 80000, Morocco
| | - Hicham Mechqoq
- Laboratory of Biotechnologies and Valorization of Natural Ressources, Faculty of Sciences, B.P. 8106, Cité Dakhla, Agadir, 80000, Morocco
| | - Abdellah El Hamdaoui
- Laboratory of Biotechnologies and Valorization of Natural Ressources, Faculty of Sciences, B.P. 8106, Cité Dakhla, Agadir, 80000, Morocco
| | - Venugopal Jrv Mukku
- Math, Science and Technology Department, University of Minnesota Crookston, Crookston, USA
| | - Abdelhamid El Mousadik
- Laboratory of Biotechnologies and Valorization of Natural Ressources, Faculty of Sciences, B.P. 8106, Cité Dakhla, Agadir, 80000, Morocco
| | - Fouad Msanda
- Laboratory of Biotechnologies and Valorization of Natural Ressources, Faculty of Sciences, B.P. 8106, Cité Dakhla, Agadir, 80000, Morocco
| | - Noureddine El Aouad
- Laboratory of Biotechnologies and Valorization of Natural Ressources, Faculty of Sciences, B.P. 8106, Cité Dakhla, Agadir, 80000, Morocco; Research Team on Biological Engerineering, Agrifood and Aquaculture, Polydisciplinary Faculty of Larache, University Abdelmalek Essaadi, Route de Rabat, Larache, 92000, Morocco.
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Nafis A, Iriti M, Ouchari L, El Otmani F, Marraiki N, Elgorban AM, Syed A, Mezrioui N, Hassani L, Custódio L. New Insight into the Chemical Composition, Antimicrobial and Synergistic Effects of the Moroccan Endemic Thymus atlanticus (Ball) Roussine Essential Oil in Combination with Conventional Antibiotics. Molecules 2021; 26:molecules26195850. [PMID: 34641393 PMCID: PMC8510371 DOI: 10.3390/molecules26195850] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/15/2021] [Accepted: 09/20/2021] [Indexed: 11/16/2022] Open
Abstract
This study reported the volatile profile, the antimicrobial activity and the synergistic potential of essential oil (EO) from the Moroccan endemic Thymus atlanticus (Ball) Roussine, in combination with the antibiotics ciprofloxacin and fluconazole for the first time, to the best of our knowledge. The EO chemical composition was determined by gas chromatography coupled to mass spectrometry (GC-MS) analysis and the antimicrobial activity assessed by the disc diffusion method against three Gram positive (Bacillus subtilis, Micrococcus luteus, Staphylococcus aureus) and three Gram-negative bacteria (Pseudomonas aeruginosa, Escherichia coli and one clinical isolate, Klebsiella pneumonia). The antifungal activity was evaluated in four pathogenic yeasts (Candida albicans, C. glabrata, C. krusei and C. parapsilosis). The minimum inhibition concentration (MIC) and the synergistic effect with ciprofloxacin and fluconazole were determined by the two-fold dilution technique and checkerboard test, respectively. Twenty-one constituents were identified by GC-MS in the EO, including carvacrol (21.62%) and borneol (21.13%) as the major components. The EO exhibited a significant antimicrobial activity with inhibition zones ranging from 0.7 mm to 22 mm for P. aeruginosa and B. subtilis, respectively, and MIC values varying from 0.56 mg/mL to 4.47 mg/mL. The fractional inhibitory concentration index (FICI) values ranged from 0.25 to 0.50 for bacteria and from 0.25 to 0.28 for yeasts. The maximum synergistic effect was observed for K. pneumonia with a 256-fold gain of antibiotic MIC. Our results have suggested that EO from T. atlanticus may be used alone or in association with antibiotics as a new potential alternative to prevent and control the emergence of resistant microbial strains both in the medical field and in the food industry.
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Affiliation(s)
- Ahmed Nafis
- Microbiology, Health and Environment Team, Faculty of Sciences, Chouaïb Doukkali University, El Jadida 24000, Morocco;
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech 40000, Morocco; (N.M.); (L.H.)
- Correspondence: ; Tel.: +212-610170760
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy;
| | - Lahcen Ouchari
- Moroccan Coordinated Collection of Microorganisms (CCMM), National Center for Scientific and Technical Research (CNRST), P.O. Box 8027, Rabat 10102, Morocco;
| | - Fatima El Otmani
- Microbiology, Health and Environment Team, Faculty of Sciences, Chouaïb Doukkali University, El Jadida 24000, Morocco;
| | - Najat Marraiki
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (N.M.); (A.M.E.); (A.S.)
| | - Abdallah M. Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (N.M.); (A.M.E.); (A.S.)
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (N.M.); (A.M.E.); (A.S.)
| | - Noureddine Mezrioui
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech 40000, Morocco; (N.M.); (L.H.)
| | - Lahcen Hassani
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech 40000, Morocco; (N.M.); (L.H.)
| | - Luísa Custódio
- Center of Marine Sciences, Faculty of Sciences and Technology, University of Algarve, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal;
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In vitro and in silico evaluation of some plant extracts and phytocompounds against multidrug-resistant Gram-negative bacteria. ADVANCES IN TRADITIONAL MEDICINE 2021. [DOI: 10.1007/s13596-021-00602-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ojimelukwe PC. Piper guineense- an underutilized aromatic spice with medicinal value. ADVANCES IN TRADITIONAL MEDICINE 2021. [DOI: 10.1007/s13596-021-00586-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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The Use of Lavender ( Lavandula angustifolia) Essential Oil as an Additive to Drinking Water for Broiler Chickens and Its In Vitro Reaction with Enrofloxacin. Animals (Basel) 2021; 11:ani11061535. [PMID: 34070304 PMCID: PMC8225141 DOI: 10.3390/ani11061535] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/19/2021] [Accepted: 05/19/2021] [Indexed: 12/11/2022] Open
Abstract
Biological activity of lavender essential oil is a property that can potentially find an application in poultry nutrition. Nowadays, the use of bioactive compounds is encouraged in many areas of industry and agriculture, since these substances have similar properties as withdrawn antibiotic growth promoters. Additionally, antibiotic resistance bacteria are one of the most important current threats to animal health. The purpose of the study was to determine the influence of lavender essential oil on the production parameters and blood parameters in broiler chickens and to assess the lavender oil's in vitro reaction in a combination with enrofloxacin towards Escherichia coli. One-day-old non-sexed chicks (Ross 308) were divided into three experimental groups, each consisting of 100 individuals (five replicate of 20 boiler chicken each). The chickens in the control group received drinking water with no addition of lavender essential oil. In the experimental groups, lavender oil was added to the drinking water at a concentration of 0.4 mL/L, in the LEO1-42 from 1 to 42 days of age and the LEO22-42 group from the 22 to 42 days of age. The chickens' body weight, feed consumption, water consumption, deaths and elimination due to health reasons were determined in the experiment. On day 42 of the chickens' lives, blood samples were collected based on which selected parameters were identified. An in vitro experiment of lavender oil in combination with enrofloxacin was investigated with a checkerboard method. The results of the experiment showed the antimicrobial and antioxidant activity of lavender essential oil and its positive effect on the production results of broiler chickens. The study results proved that the addition of lavender oil positively impacted the chickens' final body weight and feed conversion ratio (p < 0.01). No differences were observed between the groups for water consumption, death rate and the examined biochemical and immunological blood serum indices. Lavender essential oil was demonstrated to increase the blood serum's total antioxidant status. A synergistic reaction in vitro was observed for lavender oil combined with enrofloxacin against resistant strains of Escherichia coli. Based on our study, a health-promoting effect of adding LEO to water for broiler chickens was found. Moreover, in vitro studies indicate a significant effect of lavender essential oil on the inhibition of the resistant strains of Escherichia coli growth and synergistic reaction with enrofloxacin.
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Sadeer NB, Mahomoodally MF. Antibiotic Potentiation of Natural Products: A Promising Target to Fight Pathogenic Bacteria. Curr Drug Targets 2021; 22:555-572. [PMID: 32972338 DOI: 10.2174/1389450121666200924113740] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/29/2020] [Accepted: 07/08/2020] [Indexed: 01/13/2023]
Abstract
Pathogenic microorganisms should be considered as the number one foe of human, as witnessed by recent outbreaks of coronavirus disease (COVID-19) and with bacteria no longer sensitive to existing antibiotics. The resistance of pathogenic bacteria and deaths attributable to bacterial infections is increasing exponentially. Bacteria used different mechanisms to counterattack to existing antibiotics, namely (i) enzymatic inhibition, (ii) penicillin-binding protein modification, (iii) porin mutations, (iv) efflux pumps and (v) molecular modifications of antibiotic targets. Developing new antibiotics would be time-consuming to address such a situation, thus one of the promising approaches is by potentiating existing antibiotics. Plants used synergism to naturally defend and protect themselves from microbes. Using the same strategy, several studies have shown that the combinations of natural products and antibiotics could effectively prolong the lifespan of existing antibiotics and minimize the impact and emergence of antibiotic resistance. Combining essential oils constituents, namely uvaol, ferruginol, farnesol and carvacrol, with antibiotics, have proved to be efficient efflux pump inhibitors. Plant-derived compounds such as gallic acid and tannic acid are effective potentiators of various antibiotics, including novobiocin, chlorobiocin, coumermycin, fusidic acid, and rifampicin, resulting in a 4-fold increase in the potencies of these antibiotics. Several lines of research, as discussed in this review, have demonstrated the effectiveness of natural products in potentiating existing antibiotics. For this reason, the search for more efficient combinations should be an ongoing process with the aim to extend the life of the ones that we have and may preserve the life for the ones that are yet to come.
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Affiliation(s)
- Nabeelah Bibi Sadeer
- Department of Health Sciences, Faculty of Science, University of Mauritius, 230Reduit, Mauritius
| | - Mohamad Fawzi Mahomoodally
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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Effect of LongZhang Gargle on Dual-Species Biofilm of Candida albicans and Streptococcus mutans. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6654793. [PMID: 33824875 PMCID: PMC8007335 DOI: 10.1155/2021/6654793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/05/2021] [Accepted: 03/13/2021] [Indexed: 02/05/2023]
Abstract
Bioactive natural products have become a hot spot for oral disease treatments. At the present study, LongZhang Gargle was investigated for its effects on single-species biofilms of Candida albicans and dual-species biofilms of Candida albicans and Streptococcus mutans. Two different models of single and dual-species biofilms were grown in YNBB medium under appropriate conditions. Biofilm biomass, biofilm architecture, and cell activity in biofilms were assessed using Crystal Violet Staining, MTT, scanning electron microscopy (SEM), and confocal laser scanning microscopy (CLSM). Significant reductions of biofilm biomass and fungus activity were obtained when treated with LongZhang Gargle at 2% (P < 0.05), 4% (P < 0.05), and 8% (P < 0.05) in single-species biofilms of C. albicans, and at 4% (P < 0.05) and 8% (P < 0.05) in double-species biofilms. Suppression of density, thickness, and the proportion of hyphae and fungal spores were obtained under SEM and CLSM. In conclusion, LongZhang Gargle affects single and dual-species biofilms by inhibiting biofilm biomass, cell activity, and formation of hyphae, but it does not affect the production of Extracellular polysaccharides (EPS). We speculate that LongZhang Gargle would be a promising natural drug, which can be used in treatment against C. albicans and S. mutans in oral diseases.
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Amrati FEZ, Bourhia M, Saghrouchni H, Slighoua M, Grafov A, Ullah R, Ezzeldin E, Mostafa GA, Bari A, Ibenmoussa S, Bousta D. Caralluma europaea (Guss.) N.E.Br.: Anti-Inflammatory, Antifungal, and Antibacterial Activities against Nosocomial Antibiotic-Resistant Microbes of Chemically Characterized Fractions. Molecules 2021; 26:molecules26030636. [PMID: 33530597 PMCID: PMC7865290 DOI: 10.3390/molecules26030636] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 01/20/2021] [Accepted: 01/22/2021] [Indexed: 01/04/2023] Open
Abstract
Caralluma europaea (Guss.) N.E.Br.: (C. europaea) is a wild medicinal plant belonging to the family Apocynaceae. It is commonly used in traditional medicines for treating several diseases. The present work aims to evaluate the anti-inflammatory, antibacterial, and antifungal potentials of C. europaea fractions including hydro ethanol (ET CE), n-butanol (But CE), and polyphenol (Poly CE). The chemical composition of hydroethanol, n-butanol, and polyphenol-rich fractions from C. europaea were determined using GC-MS after silylation. The anti-inflammatory effect of hydroethanol, n-butanol, and polyphenol-rich fractions was studied by carrageenan-induced paw edema. Antibacterial and antifungal activities of hydroethanol, n-butanol, and polyphenol-rich fractions against Gram-positive bacteria, Gram-negative bacteria, and yeasts were assessed using the disc diffusion and micro-dilution assays. The findings of the chemical characterization affirmed the presence of interesting bioactive compounds in C. europaea fractions. The polyphenol-rich fraction was the best inhibitor of edema by75.68% after 6 h of treatment. The hydroethanol fraction was the most active against both bacteria and yeasts. This study contributes to society as it provides potential bioactive compounds in C. europaea extract, which may help in fighting nosocomial antibiotic-resistant microbes.
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Affiliation(s)
- Fatima Ez-Zahra Amrati
- Laboratory of Biotechnology, Health, Agrofood and Environment (LBEAS), Faculty of Sciences Dhar El Mehraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; (M.S.); (D.B.)
- Correspondence: (F.E.-Z.A.); (M.B.); (R.U.)
| | - Mohammed Bourhia
- Laboratory of Chemistry, Biochemistry, Nutrition, and Environment, Faculty of Medicine and Pharmacy, University Hassan II, Casablanca 20000, Morocco;
- Correspondence: (F.E.-Z.A.); (M.B.); (R.U.)
| | - Hamza Saghrouchni
- Department of Biotechnology, Institute of Natural and Applied Sciences, Çukurova University, Adana 01170, Turkey;
| | - Meryem Slighoua
- Laboratory of Biotechnology, Health, Agrofood and Environment (LBEAS), Faculty of Sciences Dhar El Mehraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; (M.S.); (D.B.)
| | - Andriy Grafov
- Department of Chemistry, Faculty of Sciences, Helsinki University, 00100 Helsinki, Finland;
| | - Riaz Ullah
- Department of Pharmacognosy (MAPPRC), College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
- Correspondence: (F.E.-Z.A.); (M.B.); (R.U.)
| | - Essam Ezzeldin
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (E.E.); (G.A.M.); (A.B.)
| | - Gamal A. Mostafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (E.E.); (G.A.M.); (A.B.)
| | - Ahmed Bari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (E.E.); (G.A.M.); (A.B.)
| | - Samir Ibenmoussa
- Laboratory of Chemistry, Biochemistry, Nutrition, and Environment, Faculty of Medicine and Pharmacy, University Hassan II, Casablanca 20000, Morocco;
| | - Dalila Bousta
- Laboratory of Biotechnology, Health, Agrofood and Environment (LBEAS), Faculty of Sciences Dhar El Mehraz, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; (M.S.); (D.B.)
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Celen Yuceturk S, Aydogan Turkoglu S, Kockar F, Kucukbay FZ, Azaz AD. Essential oil chemical composition, antimicrobial, anticancer, and antioxidant effects of Thymus convolutus Klokov in Turkey. ACTA ACUST UNITED AC 2021; 76:193-203. [PMID: 33909957 DOI: 10.1515/znc-2020-0070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 01/07/2021] [Indexed: 01/04/2023]
Abstract
In this study, the chemical composition, antimicrobial, antioxidant, and anticancer effects of Thymus convolutus Klokov oil and its main compound camphor were investigated. The oil was isolated from T. convolutus using hydrodistillation method, analyzed by gas chromatography/mass spectrometry (GC-MS), and 66 compounds were identified. The main component was determined as camphor at 16.6%. The antioxidant properties were identified with the DPPH (2,2'-diphenyl-1-picrylhydrazyl) radical-scavenging method and, 33.39 ± 0.25% DPPH was scavenging in 1000 μg/mL of essential oil. The strong antimicrobial activity was observed against Escherichia coli, Enterobacter aerogenes, Proteus vulgaris, and Pseudomonas aeruginosa with MIC values of 125 μg/mL. Aspergillus flavus was more sensitive (28%) against T. convolutus essential oil than other fungi. The cytotoxic effect of oil was analyzed by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) method. Camphor was effective on human hepatoma cells (Hep3B) at concentrations of 1 mg/mL, 500, 250, and 125 μg/mL, while essential oil of T. convolutus was found to be effective at concentrations of 250 and 125 μg/mL. A reduction in cell proliferation was observed in colon carcinoma cells (HT-29) treated with 500 μg/mL camphor for 48 h. No statistically significant effect was found in Umbilical Vein Endothelial Cells (HUVEC) treated with essential oil and camphor.
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Affiliation(s)
- Selma Celen Yuceturk
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Balikesir University, 10145Balıkesir, Turkey
| | - Sumeyye Aydogan Turkoglu
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Balikesir University, 10145Balıkesir, Turkey
| | - Feray Kockar
- Department of Molecular Biology and Genetics, Faculty of Science and Literature, Balikesir University, 10145Balıkesir, Turkey
| | - F Zehra Kucukbay
- Department of Basic Pharmaceutical Sciences, Division of Analytical Chemistry, Faculty of Pharmacy, İnönü University, 44280Malatya, Turkey
| | - A Dilek Azaz
- Department of Biology, Faculty of Science and Literature, Balikesir University, 10145Balıkesir, Turkey
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Abdullahi SA, Unyah NZ, Nordin N, Basir R, Nasir WM, Alapid AA, Hassan Y, Mustapha T, Majid RA. Phytochemicals and Potential Therapeutic Targets on Toxoplasma gondii Parasite. Mini Rev Med Chem 2021; 20:739-753. [PMID: 31660810 DOI: 10.2174/1389557519666191029105736] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/26/2019] [Accepted: 10/16/2019] [Indexed: 11/22/2022]
Abstract
Identification of drug target in protozoan T. gondii is an important step in the development of chemotherapeutic agents. Likewise, exploring phytochemical compounds effective against the parasite can lead to the development of new drug agent that can be useful for prophylaxis and treatment of toxoplasmosis. In this review, we searched for the relevant literature on the herbs that were tested against T. gondii either in vitro or in vivo, as well as different phytochemicals and their potential activities on T. gondii. Potential activities of major phytochemicals, such as alkaloid, flavonoid, terpenoids and tannins on various target sites on T. gondii as well as other related parasites was discussed. It is believed that the phytochemicals from natural sources are potential drug candidates for the treatment of toxoplasmosis with little or no toxicity to humans.
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Affiliation(s)
- Sharif Alhassan Abdullahi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia.,Faculty of Clinical Sciences, Bayero University, Kano, Nigeria
| | - Ngah Zasmy Unyah
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia
| | - Noshariza Nordin
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia
| | - Rusliza Basir
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia
| | - Wana Mohammed Nasir
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia.,Department of Biological Sciences, Faculty of Sciences, Abubakar Tafawa Balewa University, Bauchi, Nigeria
| | - Ashraf Ahmad Alapid
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia.,Department of Zoology, Faculty of Science-Alassaba, University of Gharyan, Gharyan, Libya
| | - Yahaya Hassan
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia.,Department of Medical Laboratory Sciences, Bayero University Kano, Nigeria
| | - Tijjani Mustapha
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia.,Department of Biological Sciences, Faculty of Science, Yobe State University, Damaturi, Nigeria
| | - Roslaini Abd Majid
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, University Putra, Selangor, Malaysia
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Roshanak S, Shahidi F, Tabatabaei Yazdi F, Javadmanesh A, Movaffagh J. Evaluation of Antimicrobial Activity of Buforin I and Nisin and Synergistic Effect of the Combination of them as a Novel Antimicrobial Preservative. J Food Prot 2020; 83:2018-2025. [PMID: 32502264 DOI: 10.4315/jfp-20-127] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/02/2020] [Accepted: 06/04/2020] [Indexed: 12/24/2022]
Abstract
One of the most effective methods for increasing the antimicrobial activity of a substance is to combine it with one or more other antimicrobial agents. The aim of the present study was to evaluate the antimicrobial effect of buforin I and nisin alone and investigate the synergistic action of these compounds against the most important food spoilage microorganisms in clouding B. subtilis, S. epidermidis, L. innocua, E. coli, S. Enteritidis, A. oryzae, R. glutinis and G. candidum. The results of MIC and MBC/MFC examinations showed that buforin I had higher antimicrobial activity than nisin on all the microbial strains used in this study (p≤0.5). E.coli was the most resistant to both antimicrobial agents, while Listeria innocua and Staphylococcus epidermidis were the most sensitive to nisin and buforin I, respectively. The results of synergistic interaction between buforin I and nisin indicated that the combination of buforin I and nisin on B. subtilis, S. epidermidis and A. oryzae showed synergistic effect, while it had no effect on S. Enteritidis and Geotrichum candidum. The combination of buforin I and nisin showed partial synergistic effect on Listeria innocua, Escherichia coli, Rhodotorula glutinis. Assessment of viability of the microorganisms under the antimicrobial agents alone and in combination with each other at MICs and FICs indicated that use of these antimicrobial agents in combination enhances antimicrobial activity at lower concentrations of both agents. The present study investigated the antimicrobial properties of buforin I against food spoilage microorganisms for the first time and suggests that its use alone or in combination with nisin may provide a clear horizon for the application of antimicrobial peptides as natural preservatives. Thus, the combination of antimicrobial peptides and traditional antimicrobial food preservative could be a promising option for the prevention of contamination, spoilage, and infestation of food and beverage products.
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Affiliation(s)
| | - Fakhri Shahidi
- Ferdowsi University of Mashhad Professor Food science and Technology Azadi IRAN (ISLAMIC REPUBLIC OF) Mashhad Razavi Khorasan 9177948974
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Kongkham B, Prabakaran D, Puttaswamy H. Opportunities and challenges in managing antibiotic resistance in bacteria using plant secondary metabolites. Fitoterapia 2020; 147:104762. [PMID: 33069839 DOI: 10.1016/j.fitote.2020.104762] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 10/08/2020] [Accepted: 10/12/2020] [Indexed: 12/11/2022]
Abstract
Development of antibiotic resistance (ABR) in bacteria and its multidimensional spread is an emerging global threat that needs immediate attention. Extensive antibiotics (AB) usage results in development of ABR in bacteria by target modification, production of AB degrading enzymes, porin modifications, efflux pumps overexpression, etc. To counter this, apart from strict regulation of AB use and behavioural changes, research and development (R&D) of newer antimicrobials are in place. One such emerging approach to combat ABR is the use of structurally and functionally diverse plant secondary metabolites (PSMs) in combination with the conventional AB. Either the PSMs are themselves antimicrobial or they potentiate the activity of the AB through a range of mechanisms. However, their use is lagging due to poor knowledge of mode of action, structure-activity relationships, pharmacokinetics, etc. This review paper discussed the opportunities and challenges in managing ABR using PSMs. Mechanisms of ABR development in bacteria and current strategies to counter them were studied and the areas where PSMs can play an important role were highlighted. The use of PSMs, both as an anti-resistance and anti-virulence agent in combination therapy to counter multi-drug resistance along with their mechanisms of action, has been discussed in detail. The difficulties in the commercialisation of PSMs and strategies to overcome them along with future priority areas of research have also been given. Following the given R&D path will definitely help in better understanding and utilising the full potential of PSMs in solving the problem of antimicrobial resistance (AMR).
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Affiliation(s)
- Bhani Kongkham
- Environmental Biotechnology Laboratory, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Delhi 110016, India
| | - Duraivadivel Prabakaran
- Environmental Biotechnology Laboratory, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Delhi 110016, India
| | - Hariprasad Puttaswamy
- Environmental Biotechnology Laboratory, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Delhi 110016, India.
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Nafis A, Hassani L, Marraiki N, Al-Rashed S, Elgorban AM, Syed A, Iriti M. Antimicrobial and synergistic effect of Moroccan native Argania spinosa essential oil for modulating of antibiotics resistance. Nat Prod Res 2020; 35:6078-6082. [PMID: 32945194 DOI: 10.1080/14786419.2020.1821018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this study, the chemical composition and antimicrobial activity of the essential oil (EO) extracted from leaves of the Moroccan endemic plant Argania spinosa were investigated for the first time, to the best of our knowledge. In addition, the EO antimicrobial activity was evaluated in combination with two known antibiotics (ciprofloxacin and fluconazole), in order to ascertain possible synergistic effects. The chemical composition analyzed by GC/MS showed that A. spinosa EO was characterised by the abundance of geranyl acetate (19.18%), methyleugenol (10.98%), linalyl acetate (10.59%) and eucalyptol (8.49%), and monoterpene hydrocarbons was the major class. EO showed an antimicrobial potential against all tested microorganisms. The highest activity was recorded against Gram positive bacteria and yeasts with MICs ranging from 7.75 to 15.5 mg/mL and from 3.88 to 7.75 mg/mL, respectively. The Gram negative bacteria were the most resistant with MICs of 31 mg/mL. The mixture of EO at sub-inhibitory concentrations with conventional drugs exhibited a significant decrease in their individual MICs from 4 to 32 fold. The highest level of synergy was observed for ciprofloxacin against Staphylococcus aureus, Bacillus subtilis and Escherichia coli. Despite the antimicrobial activity of A. spinosa EO is weak, the results of the current study suggest a potential synergy between EO and antibiotics in the goal to modulate drug resistance.
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Affiliation(s)
- Ahmed Nafis
- Biology Department, Faculty of Sciences, Chouaïb Doukkali University, El Jadida, Morocco.,Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Lahcen Hassani
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Najat Marraiki
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sarah Al-Rashed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, Milan, Italy
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Lee JE, Seo SM, Huh MJ, Lee SC, Park IK. Reactive oxygen species mediated-antifungal activity of cinnamon bark (Cinnamomum verum) and lemongrass (Cymbopogon citratus) essential oils and their constituents against two phytopathogenic fungi. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 168:104644. [PMID: 32711777 DOI: 10.1016/j.pestbp.2020.104644] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 05/09/2023]
Abstract
To find new and safe type of control agents against phytopathogenic fungi, the fumigant antifungal activity of 10 plant essential oils and constituents identified in cinnamon bark (Cinnamomum verum) and lemongrass (Cymbopogon citratus) essential oils was investigated against two phytopathogenic fungi, Raffaelea quercus-mongolicae and Rhizoctonia solani. Among plant essential oils, cinnamon bark and lemongrass essential oils showed 100% inhibition of R. quercus-mongolicae and R. solani at 5 mg/paper disc, respectively. Among test constituents, salicylaldehyde, eugenol, and hydrocinnamaldehyde showed 100% inhibition of growth of R. quercus-mongolicae at 2.5 mg/paper disc. Neral, geraniol, geranial, trans-cinnamaldehyde, methyl cinnamate, isoeugenol, and methyl eugenol exhibited >80% inhibition of growth of R. quercus-mongolicae at 2.5 mg/paper disc. Neral, geranial, trans-cinnamaldehyde, hydrocinnamaldehyde, and salicylaldehyde showed 100% inhibition of growth of R. solani at 2.5 mg/paper disc. A fumigant antifungal bioassay of artificial blends of the constituents identified in cinnamon bark and lemongrass essential oils indicated that trans-cinnamaldehyde and geranial were major contributors to the fumigant antifungal activity of the artificial blend. Confocal laser scanning microscopy images of fungi treated with cinnamon bark and lemongrass essential oils, trans-cinnamaldehyde, neral, and geranial revealed the reactive oxygen species (ROS) generation and cell membrane disruption.
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Affiliation(s)
- Ji-Eun Lee
- Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea; Forest Insect Pests and Diseases Division, National Institute of Forest Science, Seoul 02455, Republic of Korea
| | - Seon-Mi Seo
- Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Jung Huh
- Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung-Chan Lee
- Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Il-Kwon Park
- Department of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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Chrząszcz M, Miazga-Karska M, Klimek K, Granica S, Tchórzewska D, Ginalska G, Szewczyk K. Extracts from Cephalaria Uralensis (Murray) Roem. & Schult. and Cephalaria Gigantea (Ledeb.) Bobrov as Potential Agents for Treatment of Acne Vulgaris: Chemical Characterization and In Vitro Biological Evaluation. Antioxidants (Basel) 2020; 9:E796. [PMID: 32859126 PMCID: PMC7555732 DOI: 10.3390/antiox9090796] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/16/2020] [Accepted: 08/20/2020] [Indexed: 12/23/2022] Open
Abstract
The aim of this study was to compare the chemical composition, as well as antioxidant, anti-inflammatory, antiacne, and cytotoxic activites of various extracts of Cephalaria gigantea and C. uralensis. It is worth underlining that we are the first to characterize the composition and evaluate the biological properties of extracts from Cephalaria gigantea and C. uralensis. Thus, the LC-DAD-MS3 analysis revealed the presence of 41 natural products in studied extracts. The 5-O-caffeoylquinic acid, isoorinetin, and swertiajaponin were the main detected compounds. Among the tested samples, ethanol extract of the aerial parts of C. uralensis (CUE) possessed the most suitable biological properties. It exhibited moderate ability to scavenge free radicals and good capacity to inhibit cyclooxygenase-1, as well as cyclooxygenase-2. Moreover, CUE possessed moderate antibacterial activity against all tested bacterial strains (S. aureus, S. epidermidis, and P. acnes), and importantly, it was non-toxic towards normal skin fibroblasts. Taking into account the value of calculated therapeutic index (>10), it is worth noting that CUE can be subjected to in vivo study. Thus, CUE constitutes a very promising antiacne agent.
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Affiliation(s)
- Małgorzata Chrząszcz
- Department of Pharmaceutical Botany, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
| | - Małgorzata Miazga-Karska
- Department of Biochemistry and Biotechnology, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland; (M.M.-K.); (K.K.); (G.G.)
| | - Katarzyna Klimek
- Department of Biochemistry and Biotechnology, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland; (M.M.-K.); (K.K.); (G.G.)
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Medical University of Warsaw, 02-097 Warsaw, Poland;
| | - Dorota Tchórzewska
- Department of Plant Anatomy and Cytology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland;
| | - Grażyna Ginalska
- Department of Biochemistry and Biotechnology, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland; (M.M.-K.); (K.K.); (G.G.)
| | - Katarzyna Szewczyk
- Department of Pharmaceutical Botany, Medical University of Lublin, 1 Chodźki Str., 20-093 Lublin, Poland;
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Vázquez-Ucha JC, Martínez-Guitián M, Lasarte-Monterrubio C, Conde-Pérez K, Arca-Suárez J, Álvarez-Fraga L, Pérez A, Crecente-Campo J, Alonso MJ, Bou G, Poza M, Beceiro A. Syzygium aromaticum (clove) and Thymus zygis (thyme) essential oils increase susceptibility to colistin in the nosocomial pathogens Acinetobacter baumannii and Klebsiella pneumoniae. Biomed Pharmacother 2020; 130:110606. [PMID: 32795924 DOI: 10.1016/j.biopha.2020.110606] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/30/2020] [Accepted: 08/02/2020] [Indexed: 01/29/2023] Open
Abstract
The discovery of new antibiotics that are effective against Acinetobacter baumannii and Enterobacteralesis a research priority. Several essential oils (EOs) have displayed some antimicrobial activity and could potentially act as antibiotic adjuvants. Research in this area aims to develop new therapeutic alternatives to treat infections caused by these pathogens. MICs of different EOs were determined against A. baumannii and Klebsiella pneumoniae. Combined disk diffusion tests and checkerboard assays were used to study the synergy between the EOs and antibiotics. The fractional inhibitory concentration index (FICindex) was calculated in order to categorize the interaction. Time-kill assays were also performed. The EOs that displayed the highest levels of antimicrobial activity were clove (Syzygium aromaticum L.) and thyme (Thymus zygis L.). Combined disk diffusion tests and checkerboard assays revealed synergy between these EOs and colistin. Addition of either clove or thyme EO decreased the MIC of colistin by 8- to 64-fold and 8- to 128-fold in the colistin-resistant A. baumannii and K. pneumoniae strains, respectively (FICindex ≤ 0.5, synergy). MICs were also reduced in the colistin-susceptible strains. Time-kill assays also indicated the strong activity of the combined therapy. In summary, the use of clove or thyme EO in combination with colistin could improve the efficacy of the antibiotic and significantly reduce the concentrations needed to inhibit growth of A. baumannii and K. pneumoniae.
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Affiliation(s)
- Juan C Vázquez-Ucha
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain.
| | - Marta Martínez-Guitián
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - Cristina Lasarte-Monterrubio
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - Kelly Conde-Pérez
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - Jorge Arca-Suárez
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - Laura Álvarez-Fraga
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - Astrid Pérez
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - José Crecente-Campo
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus Vida Universidade de Santiago de Compostela (USC), Av. Barcelona, 15706, Santiago de Compostela, Spain
| | - María J Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus Vida Universidade de Santiago de Compostela (USC), Av. Barcelona, 15706, Santiago de Compostela, Spain
| | - Germán Bou
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - Margarita Poza
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
| | - Alejandro Beceiro
- Servicio de Microbiología, Instituto de Investigación Biomédica de A Coruña (INIBIC-CICA), Complejo Hospitalario Universitario A Coruña (CHUAC), As Xubias 84, 15006, A Coruña, Spain
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Yang Y, Lin M, Feng S, Gu Q, Chen Y, Wang Y, Song D, Gao M. Chemical composition, antibacterial activity, and mechanism of action of essential oil from
Litsea cubeba
against foodborne bacteria. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14724] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yu‐Jing Yang
- Key Laboratory for Food Microbial Technology of Zhejiang Province Zhejiang Gongshang University Hangzhou PR China
| | - Meng‐Yi Lin
- Key Laboratory for Food Microbial Technology of Zhejiang Province Zhejiang Gongshang University Hangzhou PR China
| | - Shu‐Yi Feng
- Key Laboratory for Food Microbial Technology of Zhejiang Province Zhejiang Gongshang University Hangzhou PR China
| | - Qing Gu
- Key Laboratory for Food Microbial Technology of Zhejiang Province Zhejiang Gongshang University Hangzhou PR China
| | - Yi‐Cun Chen
- State Key Laboratory of Tree Genetics and Breeding Chinese Academy of Forestry Beijing PR China
- Institute of Subtropical Forestry Chinese Academy of Forestry Hangzhou PR China
| | - Yang‐Dong Wang
- State Key Laboratory of Tree Genetics and Breeding Chinese Academy of Forestry Beijing PR China
- Institute of Subtropical Forestry Chinese Academy of Forestry Hangzhou PR China
| | - Da‐feng Song
- Key Laboratory for Food Microbial Technology of Zhejiang Province Zhejiang Gongshang University Hangzhou PR China
| | - Ming Gao
- State Key Laboratory of Tree Genetics and Breeding Chinese Academy of Forestry Beijing PR China
- Institute of Subtropical Forestry Chinese Academy of Forestry Hangzhou PR China
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Trifan A, Luca SV, Greige-Gerges H, Miron A, Gille E, Aprotosoaie AC. Recent advances in tackling microbial multidrug resistance with essential oils: combinatorial and nano-based strategies. Crit Rev Microbiol 2020; 46:338-357. [DOI: 10.1080/1040841x.2020.1782339] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Adriana Trifan
- Department of Pharmacognosy, Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | - Simon Vlad Luca
- Department of Pharmacognosy, Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
- Biothermodynamics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Jdaidet El-Matn, Lebanon
| | - Anca Miron
- Department of Pharmacognosy, Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
| | - Elvira Gille
- National Institute of Research & Development for Biological Sciences Bucuresti/Stejarul Biological Research Centre, Piatra Neamt, Romania
| | - Ana Clara Aprotosoaie
- Department of Pharmacognosy, Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Iasi, Romania
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Acacia senegal Extract Rejuvenates the Activity of Phenicols on Selected Enterobacteriaceae Multi Drug Resistant Strains. Antibiotics (Basel) 2020; 9:antibiotics9060323. [PMID: 32545716 PMCID: PMC7344600 DOI: 10.3390/antibiotics9060323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 11/24/2022] Open
Abstract
This study reported the phytochemical composition of two hydroethanolic extracts of Acacia senegal and Acacia seyal trees from Burkina Faso and their activities, alone or in combination with selected antibiotics, against multidrug resistant bacteria. High performance thin layer chromatography (HPTLC) method was used for phytochemical screening. Total phenolic and total flavonoid ant tannins in leaves extracts contents were assessed by spectrophotometric method. The minimal inhibitory concentrations (MICs) of plant extracts and antibiotics were determined using the microdilution method and p-iodonitrotetrazolium chloride. Combinations of extracts and antibiotics were studied using checkerboard assays. Screening revealed the presence of phenolic compounds, flavonoids, and tannins in the hydroethanolic extract (HE) of the leaves. The HE of A. seyal showed the highest total phenolic (571.30 ± 6.97 mg GAE/g), total flavonoids (140.41 ± 4.01 mg RTE/g), and tannins (24.72 ± 0.14%, condensed; 35.77 ± 0.19%, hydrolysable tannins). However, the HE of A. senegal showed the lowest total phenolic (69.84 ± 3.54 mg GAE/g), total flavonoids (27.32 ± 0.57 mg RTE/g), and tannins (14.60 ± 0.01%, condensed; 3.09 ± 0.02%, hydrolysable). The MICs for HE and antibiotics were in the range of 2–512 and 0.008–1024 mg/L, respectively. All tested HE presented an MIC greater than 512 mg/L except HE of A. senegal. The lowest MIC value (128 mg/L) was obtained with HE of A. senegal against Klebsiella aerogenes EA298 and Escherichia coli AG100A. Interesting restoring effects on chloramphenicol and florphenicol activity were detected with alcoholic extracts of A. senegal against resistant E. coli and K. aerogenes strains that overproduce AcrAB or FloR pumps. The adjuvant effect of HE of A. senegal suggests that the crude extract of leaves could be a potential source of molecules for improving the susceptibility of bacteria to phenicols antibiotics.
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Synergistic antibacterial effects of Moroccan Artemisia herba alba, Lavandula angustifolia and Rosmarinus officinalis essential oils. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.synres.2019.100057] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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The Antistaphylococcal Activity of Amoxicillin/Clavulanic Acid, Gentamicin, and 1,8-Cineole Alone or in Combination and Their Efficacy through a Rabbit Model of Methicillin-Resistant Staphylococcus aureus Osteomyelitis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:4271017. [PMID: 32419804 PMCID: PMC7206863 DOI: 10.1155/2020/4271017] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 04/15/2020] [Indexed: 02/04/2023]
Abstract
The aim of this research paper is to test the antistaphylococcal effect of 1,8-cineole, amoxicillin/clavulanic acid (AMC), and gentamicin, either separately or in combination against three Staphylococcus aureus strains isolated from patients suffering from osteomyelitis. This activity was tested in vitro by using the microdilution method and the checkerboard assay. The efficacy of these three antibacterial agents was then tested in vivo by using an experimental model of methicillin-resistant S. aureus osteomyelitis in rabbits. This efficacy was assessed after four days of treatment by counting the number of bacteria in the bone marrow. The obtained results in vitro showed that the combination of the AMC with gentamicin did not induce a synergistic effect, whereas the combination of the two antibiotics with 1,8-cineole did. This effect is stronger when AMC is combined with 1,8-cineole as a total synergistic effect was obtained on the three strains used (FIC ≤ 0.5). In vivo, a significant reduction was noted in the number of colonies in the bone marrow when rabbits were treated with AMC associated with either 1,8-cineole or gentamicin compared to rabbits treated with AMC, gentamicin, or 1,8-cineole alone. These results demonstrated that 1,8-cineole showed a synergistic effect in combination with both AMC and gentamicin, which offer possibilities for reducing antibiotic usage. Also, the AMC associated with 1,8-cineole could be used to treat MRSA osteomyelitis.
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50
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Nafis A, Kasrati A, Jamali CA, Custódio L, Vitalini S, Iriti M, Hassani L. A Comparative Study of the in Vitro Antimicrobial and Synergistic Effect of Essential Oils from Laurus nobilis L. and Prunus armeniaca L. from Morocco with Antimicrobial Drugs: New Approach for Health Promoting Products. Antibiotics (Basel) 2020; 9:antibiotics9040140. [PMID: 32218155 PMCID: PMC7235724 DOI: 10.3390/antibiotics9040140] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 02/02/2023] Open
Abstract
Laurus nobilis L. (laurel, Lauraceae) and Prunus armeniaca L. (apricot, Rosaceae) are important industrial crops and display significant biological properties, including antimicrobial activity. In this work, essential oils (EOs) prepared from the leaves of both species from Morocco were evaluated for the first time for possible synergistic in vitro antibacterial and antifungal effects with some conventional antimicrobial drugs, namely fluconazole, ciprofloxacin and vancomycin. Samples were further evaluated for chemical composition by gas chromatography–mass spectrometry (GC-MS). The main volatile compounds detected in L. nobilis were eucalyptol (40.85%), α-terpinyl acetate (12.64%) and methyl eugenol (8.72%), while P. armeniaca was dominated essentially by (Z)-phytol (27.18%), pentacosane (15.11%), nonacosane (8.76%) and benzaldehyde (7.25%). Regarding antimicrobial activity, both EOs inhibited significantly all the microorganisms tested. The EO from L. nobilis had the highest activity, with minimal inhibitory concentrations (MICs) ranging from 1.39 to 22.2 mg/mL for bacteria and between 2.77 and 5.55 mg/mL for yeasts. Conversely, the combination of the studied EOs with ciprofloxacin, vancomycin and fluconazol resulted in a noteworthy decrease in their individual MICs. In fact, of the 32 interactions tested, 23 (71.87%) demonstrated total synergism and 9 (28.12%) a partial synergistic interaction. The EO from L. nobilis exhibited the highest synergistic effect with all the antibiotics used, with fractional inhibitory concentration (FIC) index values in the range of 0.266 to 0.75 for bacteria, and between 0.258 and 0.266 for yeast. The synergistic interaction between the studied EOs and standard antibiotics may constitute promising anti-infective agents useful for treating diseases induced by antibiotic-resistant pathogens.
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Affiliation(s)
- Ahmed Nafis
- Biology Department, Faculty of Sciences, Chouaïb Doukkali University, Jadida 24000 El, Morocco;
| | - Ayoub Kasrati
- Agro-industry department, Private University of Marrakech, Marrakech 42312, Morocco;
| | - Chaima Alaoui Jamali
- Laboratory of Environmental Biology and Sustainable Development, Ecole Normale Superieure, Abdelmalek Essaadi University, Martil 209, Morocco;
| | - Luísa Custódio
- Center of Marine Sciences, Faculty of Sciences and Technology, University of Algarve, Ed. 7, Campus of Gambelas, 8005-139 Faro, Portugal;
| | - Sara Vitalini
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy;
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, via G. Celoria 2, 20133 Milan, Italy;
- Correspondence: ; Tel.: +39-025-031-6766
| | - Lahcen Hassani
- Laboratory of Microbial Biotechnologies, Agrosciences and Environment, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech 40000, Morocco;
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