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Ayed A, Caputo L, De Feo V, Elshafie HS, Fratianni F, Nazzaro F, Hamrouni L, Amri I, Mabrouk Y, Camele I, Polito F. Antimicrobial, anti-enzymatic and antioxidant activities of essential oils from some Tunisian E ucalyptus species. Heliyon 2024; 10:e34518. [PMID: 39113961 PMCID: PMC11303996 DOI: 10.1016/j.heliyon.2024.e34518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 07/01/2024] [Accepted: 07/10/2024] [Indexed: 08/10/2024] Open
Abstract
Many plants can produce essential oils (EOs), having various biological properties. This study evaluated the antioxidant, anti-enzymatic and antimicrobial effects of the EOs derived from leaves of Eucalyptus cladocalyx, E. angulosa, E. microcorys, E. ovata, E. diversicolor, E. saligna, E. sargentii and E. resinifera. The antioxidant activity of the EOs was carried out with three different methods (ABTS, DPPH and FRAP). In addition, their anti-colinesterases, anti α-amylase and anti α-glucosidase effects were assessed by spectrophotometric assays. The antimicrobial activities were tested against six phytopathogenic bacterial strains, including two G + ve (Bacillus mojavensis and Clavibacter michiganensis) and four G-ve (Pseudomonas fluorescence, P. syringae, Xanthomonas campestris and E. coli). The current study has also investigated the inhibition of biofilm formation and the possible effect on bacterial cells biofilm metabolism of three Gram-negative (Pseudomonas aeruginosa, Escherichia coli and Acinetobacter baumannii) and two Gram-positive pathogenic bacteria (Staphylococcus aureus and Listeria monocytogenes). The ABTS and DPPH tests indicated that E. diversicolor and E. saligna EOs showed high antioxidant activities, whereas FRAP test suggested that E. diversicolor EO exhibited the better antioxidant activity. E. resinifera and E. ovata EOs were the most active against cholinesterases instead E. ovata and E. sargentii EOs were more active against enzymes involved in diabetes. Antibacterial assays revealed that E. ovata and E. saligna EOs possess significant activity closely to tetracycline. Whereas, the antifungal assay revealed that all EOs have effectively suppressed the tested fungal growth. E. saligna EO showed substantial efficacy inhibiting both the mature biofilm (85.40 %) and metabolic activities (89.80 %) of L. monocytogenes. These results demonstrate the wide range of possible uses for Eucalyptus EOs in both agriculture and medicine fields, suggesting potential uses as strong antibiofilm agents and for biocontrol of phytopathogens.
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Affiliation(s)
- Amira Ayed
- Laboratory of Biotechnology and Nuclear Technology, National Center for Nuclear Sciences and Technologies (CNSTN), Sidi Thabet Technopark, Sidi Thabet 2020, Tunisia
- Higher Institute of Biotechnology of Sidi Thabet (ISBST), University of Manouba, Sidi Thabet 2020, Tunisia
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
| | | | - Filomena Nazzaro
- Institute of Food Science, ISA-CNR, Via Roma, 64, 83100 Avellino, Italy
| | - Lamia Hamrouni
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
| | - Ismail Amri
- Laboratory of Biotechnology and Nuclear Technology, National Center for Nuclear Sciences and Technologies (CNSTN), Sidi Thabet Technopark, Sidi Thabet 2020, Tunisia
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
| | - Yassine Mabrouk
- Laboratory of Biotechnology and Nuclear Technology, National Center for Nuclear Sciences and Technologies (CNSTN), Sidi Thabet Technopark, Sidi Thabet 2020, Tunisia
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
| | - Flavio Polito
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
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El-Saadony MT, Saad AM, Korma SA, Salem HM, Abd El-Mageed TA, Alkafaas SS, Elsalahaty MI, Elkafas SS, Mosa WFA, Ahmed AE, Mathew BT, Albastaki NA, Alkuwaiti AA, El-Tarabily MK, AbuQamar SF, El-Tarabily KA, Ibrahim SA. Garlic bioactive substances and their therapeutic applications for improving human health: a comprehensive review. Front Immunol 2024; 15:1277074. [PMID: 38915405 PMCID: PMC11194342 DOI: 10.3389/fimmu.2024.1277074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 05/06/2024] [Indexed: 06/26/2024] Open
Abstract
Garlic (Allium sativum L.) is a widely abundant spice, known for its aroma and pungent flavor. It contains several bioactive compounds and offers a wide range of health benefits to humans, including those pertaining to nutrition, physiology, and medicine. Therefore, garlic is considered as one of the most effective disease-preventive diets. Many in vitro and in vivo studies have reported the sulfur-containing compounds, allicin and ajoene, for their effective anticancer, anti-diabetic, anti-inflammatory, antioxidant, antimicrobial, immune-boosting, and cardioprotective properties. As a rich natural source of bioactive compounds, including polysaccharides, saponins, tannins, linalool, geraniol, phellandrene, β-phellandrene, ajoene, alliin, S-allyl-mercapto cysteine, and β-phellandrene, garlic has many therapeutic applications and may play a role in drug development against various human diseases. In the current review, garlic and its major bioactive components along with their biological function and mechanisms of action for their role in disease prevention and therapy are discussed.
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Affiliation(s)
- Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Ahmed M. Saad
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Sameh A. Korma
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Heba M. Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Taia A. Abd El-Mageed
- Department of Soils and Water, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Samar Sami Alkafaas
- Molecular Cell Biology Unit, Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mohamed I. Elsalahaty
- Biochemistry Division, Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Sara Samy Elkafas
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Menofia University, Menofia, Egypt
- Faculty of Control System and Robotics, Information Technologies, Mechanics and Optics (ITMO) University, Saint-Petersburg, Russia
| | - Walid F. A. Mosa
- Plant Production Department (Horticulture-Pomology), Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria, Egypt
| | - Ahmed Ezzat Ahmed
- Biology Department, College of Science, King Khalid University, Abha, Saudi Arabia
| | - Betty T. Mathew
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Noor A. Albastaki
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Aysha A. Alkuwaiti
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | | | - Synan F. AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
- Harry Butler Institute, Murdoch University, Perth, WA, Australia
| | - Salam A. Ibrahim
- Food Microbiology and Biotechnology Laboratory, Food and Nutritional Science Program, North Carolina A&T State University, Greensboro, NC, United States
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Benrazzouk K, Ouhaddou S, Nazzaro M, Fratianni F, Bekkouche K, De Tommasi N, Markouk M, Larhsini M, Caputo L, De Feo V, Polito F. Chemical Composition and Phytotoxic and Antibiofilm Activity of the Essential Oils of Two Moroccan Retama Species. Chem Biodivers 2024:e202400756. [PMID: 38847466 DOI: 10.1002/cbdv.202400756] [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: 03/26/2024] [Accepted: 06/06/2024] [Indexed: 07/24/2024]
Abstract
This study reports chemical composition, phytotoxic and antibiofilm activities of essential oils (EOs) of R. dasycarpa and R. sphaerocarpa from Morocco. EOs were analyzed by GC/MS and their phytotoxicities were evaluated against germination and seedling growth of Lolium multiflorum, Sinapis alba and Raphanus sativus. The antimicrobial and anti-biofilm activities were studied against Gram-negative (Pseudomonas aeruginosa, Escherichia coli and Acinetobacter baumannii) and Gram-positive bacteria (Staphylococcus aureus and Listeria monocytogenes). Both EOs were abundant in oxygenated monoterpenes (40.01% and 23.57 %, respectively). Carvacrol is the predominant component in R. dasycarpa EO (17.80 %), and it also represents an appreciable amount in R. sphaerocarpa (8.96 %). R. sphaerocarpa showed total inhibition at high doses against all seeds. S. alba seeds were the most sensitive to all EOs. Minimum inhibitory concentration (MIC) values indicated significant inhibition for R. sphaerocarpa, between 24 and 30 μg/mL, with a remarkable antibacterial potential and biofilm formation inhibition. R. sphaerocarpa EO showed significant biofilm inhibition with variable efficacy depending on the strain and concentration, except for S. aureus. R. dasycarpa exhibited activity against all bacterial strains and effect on metabolism with activity also on mature biofilms. Results suggest that Retama EOs could have potential applications in the fields of food and health.
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Affiliation(s)
- K Benrazzouk
- Laboratory of Agri-Food, Biotechnology, and Valorization of Plant Resources, Phytochemistry and Pharmacology of Medicinal Plants Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - S Ouhaddou
- Laboratory of Agri-Food, Biotechnology, and Valorization of Plant Resources, Phytochemistry and Pharmacology of Medicinal Plants Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - M Nazzaro
- Institute of Food Science, ISA-CNR, via Roma, 64, 83100, Avellino, Italy
| | - F Fratianni
- Institute of Food Science, ISA-CNR, via Roma, 64, 83100, Avellino, Italy
| | - K Bekkouche
- Laboratory of Agri-Food, Biotechnology, and Valorization of Plant Resources, Phytochemistry and Pharmacology of Medicinal Plants Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - N De Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - M Markouk
- Laboratory of Agri-Food, Biotechnology, and Valorization of Plant Resources, Phytochemistry and Pharmacology of Medicinal Plants Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - M Larhsini
- Laboratory of Agri-Food, Biotechnology, and Valorization of Plant Resources, Phytochemistry and Pharmacology of Medicinal Plants Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - L Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - V De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - F Polito
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
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Wang M, Hu J, Hai X, Cao T, Zhou A, Han R, Xing L, Yu N. Quality Evaluation of Polygonatum cyrtonema Hua Based on UPLC-Q-Exactive Orbitrap MS and Electronic Sensory Techniques with Different Numbers of Steaming Cycles. Foods 2024; 13:1586. [PMID: 38790887 PMCID: PMC11120622 DOI: 10.3390/foods13101586] [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: 04/13/2024] [Revised: 05/02/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
In this study, electronic sensory techniques were employed to comprehensively evaluate the organoleptic quality, chemical composition and content change rules for Polygonatum cyrtonema Hua (PCH) during the steaming process. The results were subjected to hierarchical cluster analysis (HCA), principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA). These analyses revealed, from a sensory product perspective, overall differences in colour, odour and taste among the samples of PCH with different numbers of steaming cycles. Using the UPLC-Q-Exactive Orbitrap MS technique, 64 chemical components, including polysaccharides, organic acids, saponins and amino acids were detected in PCH before and after steaming. The sensory traits were then correlated with the chemical composition. From the perspectives of sensory traits, chemical composition, and multi-component index content, it was preliminarily deduced that carrying out five cycles of steaming and sun-drying was optimal, providing evidence for the quality evaluation of PCH during the steaming process.
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Affiliation(s)
- Mengjin Wang
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; (M.W.)
| | - Jiayi Hu
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; (M.W.)
| | - Xiaoya Hai
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; (M.W.)
| | - Tianzhuo Cao
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; (M.W.)
| | - An Zhou
- Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei 230012, China
| | - Rongchun Han
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; (M.W.)
| | - Lihua Xing
- MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei 230012, China
| | - Nianjun Yu
- Department of Biopharmaceuticals, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; (M.W.)
- Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei 230012, China
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Khedhri S, Polito F, Caputo L, Khammassi M, Dhaouadi F, Amri I, Hamrouni L, Mabrouk Y, Fratianni F, Nazzaro F, De Feo V. Antimicrobial, Herbicidal and pesticidal potential of Tunisian eucalyptus species: Chemoprofiling and biological evaluation. Heliyon 2024; 10:e29905. [PMID: 38720723 PMCID: PMC11076916 DOI: 10.1016/j.heliyon.2024.e29905] [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: 02/05/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024] Open
Abstract
The Eucalyptus genus, characterized by its imposing stature and fragrant foliage, has been a source of fascination for humanity over the centuries. The focus of the present investigation was directed towards the essentials oils (EOs) of five Eucalyptus trees cultivated in Tunisia. The GC-MS analysis unveiled unique compositional profiles, a finding substantiated by both Hierarchical Clustering Analysis (HCA) and Principal Component Analysis (PCA) conducted on the leaves EOs. These analyses resulted in the formation of discrete HCA clades, delineating 23 significant components. Notably, the percentage of eucalyptol emerged as the pivotal factor demarcating the separation between three distinct groups. The statistical analysis revealed a dose-dependent relationship in both phytotoxicity evaluation and antibacterial activity. The EOs from Eucalyptus loxophleba and E. salubris exhibited the highest phytotoxicity, inhibiting radical elongation and germination of various seeds, especially Sinapis arvensis and Raphanus sativus. The antimicrobial assessment demonstrated significant inhibitory effects of the EOs on bacterial strains, with MIC values spanning from 14 to exceeding 50 mg/ml. The EOs also affected biofilm formation and cellular metabolism, displaying varied efficacy among different Eucalyptus species against some bacterial strains. The EOs exhibited selective inhibition against acetylcholinesterase (AChE), butyrylcholinesterase (BChE), α-amylase, and α-glucosidase. E. campaspe EO showed the highest AChE activity, while E. loxophleba and E. salubris EOs were most potent toward α-amylase. E. loxophleba EO demonstrated notable activity against α-glucosidase. Overall, these findings provide important data about the diverse biological activities of Eucalyptus EOs, suggesting potential applications in agriculture, medicine, and pharmacy.
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Affiliation(s)
- Sana Khedhri
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, 2080, Ariana, Tunisia
| | - Flavio Polito
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
| | - Marwa Khammassi
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, 2080, Ariana, Tunisia
| | - Ferjani Dhaouadi
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Science and Technology, Sidi Thabet, B.P. 72, 2020, Ariana, Tunisia
| | - Ismail Amri
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, 2080, Ariana, Tunisia
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Science and Technology, Sidi Thabet, B.P. 72, 2020, Ariana, Tunisia
| | - Lamia Hamrouni
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, 2080, Ariana, Tunisia
| | - Yassine Mabrouk
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Science and Technology, Sidi Thabet, B.P. 72, 2020, Ariana, Tunisia
| | - Florinda Fratianni
- Institute of Food Science, ISA-CNR, via Roma, 64, 83100, Avellino, Italy
| | - Filomena Nazzaro
- Institute of Food Science, ISA-CNR, via Roma, 64, 83100, Avellino, Italy
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy
- Institute of Food Science, ISA-CNR, via Roma, 64, 83100, Avellino, Italy
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Oliveira GDS, McManus C, Sousa HADF, Santos PHGDS, dos Santos VM. A Mini-Review of the Main Effects of Essential Oils from Citrus aurantifolia, Ocimum basilicum, and Allium sativum as Safe Antimicrobial Activity in Poultry. Animals (Basel) 2024; 14:382. [PMID: 38338025 PMCID: PMC10854582 DOI: 10.3390/ani14030382] [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: 12/10/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Poultry production is accompanied by the use of antimicrobial agents because no production step is free of microorganisms. In the absence of antimicrobial treatments with synthetic drugs, essential oils are among the most cited natural alternatives used to prevent and treat microbial contamination in poultry. Although there are several studies on the antimicrobial properties of essential oils, there is still no review that simultaneously compiles information on the leading antimicrobial role of essential oils from Citrus aurantifolia (CAEO), Ocimum basilicum (OBEO), and Allium sativum (ASEO) in poultry. Awareness of the antimicrobial role of these substances opens the door to encouraging their use in natural antimicrobial protocols and discouraging harmful synthetics in poultry. This review aimed to compile information on applying CAEO, OBEO, and ASEO as antimicrobials in poultry farming. The available literature suggests that these essential oils can proportionately align with the poultry industry's demands for microbiologically safe food products.
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Affiliation(s)
- Gabriel da Silva Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil; (G.d.S.O.)
| | - Concepta McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil; (G.d.S.O.)
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Alreshidi M, Abdulhakeem MA, Badraoui R, Amato G, Caputo L, De Martino L, Nazzaro F, Fratianni F, Formisano C, De Feo V, Snoussi M. Pulicaria incisa (Lam.) DC. as a Potential Source of Antioxidant, Antibacterial, and Anti-Enzymatic Bioactive Molecules: Phytochemical Constituents, In Vitro and In Silico Pharmacological Analysis. Molecules 2023; 28:7439. [PMID: 37959858 PMCID: PMC10648406 DOI: 10.3390/molecules28217439] [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: 10/12/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
Plants with medicinal benefits are a crucial source of compounds for developing drugs. This study was designed to determine the chemical composition, antibacterial, antibiofilm, antioxidant, and anti-enzymatic activities of Pulicaria incisa (Lam.) DC. We also reported the molecular interaction between identified molecules and several receptors associated with antimicrobial and antibiofilm activities. A total of seventeen and thirteen compounds were identified in aqueous and methanolic extracts of P. incisa, respectively. The methanolic extract yielded a higher total content of polyphenols and flavonoids of about 84.80 ± 2.8 mg GAE/g and 28.30 ± 1.2 mg QE/g, respectively. Significant antibacterial activity was recorded for both extracts, with minimum inhibitory concentration (MIC) values ranging from 30 to 36 µg/mL, and the result was comparable to the reference antibiotic control. Antibiofilm assays revealed that both extracts were able to reduce the attachment of bacterial cells to 96-well plates, but the highest antibiofilm activity was recorded against Staphylococcus aureus. The methanolic extract also showed anti-enzymatic potency and high antioxidant activity, as demonstrated by all assays used, including DPPH, FRAP, and ABTS. These results were further validated by in silico approaches, particularly the molecular interaction of the identified compounds with the targeted receptors. These findings present P. incisa as a significant source of antibacterial, antibiofilm, antioxidant, and anti-enzymatic molecules.
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Affiliation(s)
- Mousa Alreshidi
- Department of Biology, College of Science, University of Ha’il, Hail 2440, Saudi Arabia; (M.A.); (M.A.A.); (M.S.)
| | - Mohammad A. Abdulhakeem
- Department of Biology, College of Science, University of Ha’il, Hail 2440, Saudi Arabia; (M.A.); (M.A.A.); (M.S.)
| | - Riadh Badraoui
- Department of Biology, College of Science, University of Ha’il, Hail 2440, Saudi Arabia; (M.A.); (M.A.A.); (M.S.)
- Section of Histology-Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia
| | - Giuseppe Amato
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.A.); (L.D.M.)
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.A.); (L.D.M.)
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.A.); (L.D.M.)
| | | | | | - Carmen Formisano
- Department of Pharmacy, School of Medicine and Surgery, University of Napoli Federico II, 80131 Napoli, Italy;
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (G.A.); (L.D.M.)
| | - Mejdi Snoussi
- Department of Biology, College of Science, University of Ha’il, Hail 2440, Saudi Arabia; (M.A.); (M.A.A.); (M.S.)
- Laboratory of Genetics, Biodiversity and Valorization of Bio-Resources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Avenue Tahar Haddad, BP74, Monastir 5000, Tunisia
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8
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Khedhri S, Polito F, Caputo L, De Feo V, Khamassi M, Kochti O, Hamrouni L, Mabrouk Y, Nazzaro F, Fratianni F, Amri I. Chemical Composition, Antibacterial Properties, and Anti-Enzymatic Effects of Eucalyptus Essential Oils Sourced from Tunisia. Molecules 2023; 28:7211. [PMID: 37894690 PMCID: PMC10609094 DOI: 10.3390/molecules28207211] [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: 09/10/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
This study was conducted to examine the chemical composition of the essential oils (EOs) from six Tunisian Eucalyptus species and to evaluate their anti-enzymatic and antibiofilm activities. The EOs were obtained through hydro-distillation of dried leaves and subsequently analyzed using GC/MS. The main class of compounds was constituted by oxygenated monoterpenes, particularly prominent in E. brevifolia (75.7%), E. lehmannii (72.8%), and E. woollsiana (67%). Anti-enzymatic activities against cholinesterases, α-amylase, and α-glucosidase were evaluated using spectrophotometric methods. Notably, the E. brevifolia, E. extensa, E. leptophylla, E. patellaris, and E. woollsiana EOs displayed potent acetylcholinesterase (AChE) inhibition (IC50: 0.25-0.60 mg/mL), with E. lehmannii exhibiting lower activity (IC50: 1.2 mg/mL). E. leptophylla and E. brevifolia showed remarkable α-amylase inhibition (IC50: 0.88 mg/mL), while E. brevifolia and E. leptophylla significantly hindered α-glucosidase (IC50 < 30 mg/mL), distinguishing them from other EOs with limited effects. Additionally, the EOs were assessed for their anti-biofilm properties of Gram-positive (Staphylococcus aureus and Listeria monocytogenes) and Gram-negative (Acinetobacter baumannii, Pseudomonas aeruginosa and Escherichia coli) bacterial strains. The E. extensa EO demonstrated the main antibiofilm effect against E. coli and L. monocytogenes with an inhibition > 80% at 10 mg/mL. These findings could represent a basis for possible further use of Eucalyptus EOs in the treatment of human microbial infections and/or as a coadjutant in preventing and treating Alzheimer's disease and/or diabetes mellitus.
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Affiliation(s)
- Sana Khedhri
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, Ariana 2080, Tunisia; (S.K.); (M.K.); (L.H.)
| | - Flavio Polito
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (V.D.F.)
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (V.D.F.)
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (L.C.); (V.D.F.)
- Institute of Food Science, National Research Council, Via Roma, 60, 83100 Avellino, Italy (F.F.)
| | - Marwa Khamassi
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, Ariana 2080, Tunisia; (S.K.); (M.K.); (L.H.)
| | - Oumayama Kochti
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Science and Technology, Sidi Thabet, Ariana 2020, Tunisia; (O.K.); (Y.M.); (I.A.)
| | - Lamia Hamrouni
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, Ariana 2080, Tunisia; (S.K.); (M.K.); (L.H.)
| | - Yassine Mabrouk
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Science and Technology, Sidi Thabet, Ariana 2020, Tunisia; (O.K.); (Y.M.); (I.A.)
| | - Filomena Nazzaro
- Institute of Food Science, National Research Council, Via Roma, 60, 83100 Avellino, Italy (F.F.)
| | - Florinda Fratianni
- Institute of Food Science, National Research Council, Via Roma, 60, 83100 Avellino, Italy (F.F.)
| | - Ismail Amri
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Science and Technology, Sidi Thabet, Ariana 2020, Tunisia; (O.K.); (Y.M.); (I.A.)
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9
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Khedhri S, Polito F, Caputo L, Manna F, Khammassi M, Hamrouni L, Amri I, Nazzaro F, De Feo V, Fratianni F. Chemical Composition, Phytotoxic and Antibiofilm Activity of Seven Eucalyptus Species from Tunisia. Molecules 2022; 27:molecules27238227. [PMID: 36500316 PMCID: PMC9738237 DOI: 10.3390/molecules27238227] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
This study was carried out to characterize the chemical composition of the essential oils from seven Eucalyptus species (E. griffithsii, E. hemiphloia, E. lesouefii, E. longicornis, E. pyriformis, E. viminalis, and E. wandoo), as well as their phytotoxic and antibacterial activities. The essential oils were analyzed by GC/MS and the potential in vitro phytotoxicity was evaluated against germination and radical elongation of Raphanus sativus, Lolium multiflorum, and Sinapis arvensis seeds. The antibiofilm activity was studied against both Gram-negative (Pseudomonas aeruginosa, Escherichia coli and Acinetobacter baumannii) and Gram-positive (Staphylococcus aureus and Listeria monocytogenes) bacteria. The inhibition of biofilm formation and its metabolism was determined at different times. Eucalyptol was the most abundant component in all essential oils studied (ranging from 40.8% for E. lesouefii EO to 73.6% for E. wandoo) except for that of E. pyriformis where it was present but at 15.1%. E. pyriformis was the most active against both germination and radical elongation of S. arvensis. The action of all essential oils proved to be highly effective in inhibiting the bacterial adhesion process of the five strains considered. In light of these results, these essential oils could have potential applications both in the agricultural and health fields.
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Affiliation(s)
- Sana Khedhri
- Faculty of Science, Bizerte, Zarzouna 7021, Tunisia
| | - Flavio Polito
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Francesco Manna
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Marwa Khammassi
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
| | - Lamia Hamrouni
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
| | - Ismail Amri
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Sana Science and Technology, Sidi Thabet, B.P. 72, Ariana 2020, Tunisia
| | | | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
- Insitute of Food Science, CNR-ISA, 83100 Avellino, Italy
- Correspondence:
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10
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Khammassi M, Polito F, Amri I, Khedhri S, Hamrouni L, Nazzaro F, Fratianni F, De Feo V. Chemical Composition and Phytotoxic, Antibacterial and Antibiofilm Activity of the Essential Oils of Eucalyptus occidentalis, E. striaticalyx and E. stricklandii. Molecules 2022; 27:molecules27185820. [PMID: 36144554 PMCID: PMC9502252 DOI: 10.3390/molecules27185820] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 11/16/2022] Open
Abstract
The Eucalyptus genus (Myrtaceae) is characterized by a richness in essential oils (EO) with multiple biological activities. This study reports the chemical composition and the phytotoxic and antimicrobial activities of the EOs from Tunisian E.occidentalis, E.striaticalyx and E.stricklandii. The EOs were analyzed using GC/MS and their phytotoxicities were assessed against the germination and seedling growth of Sinapis arvensis, Trifolium campestre and Lolium rigidum. Antimicrobial activity was investigated against both Gram-negative (Pseudomonas aeruginosa, Escherichia coli and Acinetobacter baumannii) and Gram-positive (Staphylococcus aureus and Listeria monocytogenes) bacteria. The inhibition of biofilm formation and its metabolism was determined at different times. All EOs were rich in oxygenated monoterpenes (36.3-84.8%); the EO of E.occidentalis was rich in sesquiterpenes, both oxygenated and hydrocarbon (40.0% and 15.0%, respectively). Eucalyptol was the main constituent in all samples. The EOs showed phytotoxic activity on seed germination and seedling growth, depending both on chemical composition and weed. The EOs show a remarkable antibacterial potential resulting in a significant inhibition of the formation of bacterial biofilm and its metabolism, depending on the EO and the strain, with activity on the mature biofilm as well. Therefore, these Eucalyptus EOs could have potential applications both in the food and health fields.
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Affiliation(s)
- Marwa Khammassi
- Nutritional Surveillance and Epidemiology Laboratory, National Institute of Nutrition and Food Technology, 11 rue Jebel Lakhdhar, Tunis 1007, Tunisia
| | - Flavio Polito
- Department of Pharmacy, University of Salerno, Via San Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Ismail Amri
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
- Laboratory of Biotechnology and Nuclear Technology, National Center of Nuclear Science and Technology, Sidi Thabet, B.P. 72, Ariana 2020, Tunisia
| | - Sana Khedhri
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
| | - Lamia Hamrouni
- Laboratory of Management and Valorization of Forest Resources, National Institute of Researches on Rural Engineering, Water and Forests, P.B. 10, Ariana 2080, Tunisia
| | - Filomena Nazzaro
- Institute of Food Science, CNR-ISA, Via Roma, 64, 83100 Avellino, Italy
| | | | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, Via San Giovanni Paolo II, 132, 84084 Fisciano, Italy
- Institute of Food Science, CNR-ISA, Via Roma, 64, 83100 Avellino, Italy
- Correspondence: ; Tel.: +39-089-969-751
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