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Luca L, Pauliuc D, Oroian M. Honey microbiota, methods for determining the microbiological composition and the antimicrobial effect of honey - A review. Food Chem X 2024; 23:101524. [PMID: 38947342 PMCID: PMC11214184 DOI: 10.1016/j.fochx.2024.101524] [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: 03/28/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 07/02/2024] Open
Abstract
Honey is a natural product used since ancient times due to its taste, aroma, and therapeutic properties (antibacterial, antiviral, anti-inflammatory, and antioxidant activity). The purpose of this review is to present the species of microorganisms that can survive in honey and the effect they can have on bees and consumers. The techniques for identifying the microorganisms present in honey are also described in this study. Honey contains bacteria, yeasts, molds, and viruses, and some of them may present beneficial properties for humans. The antimicrobial effect of honey is due to its acidity and high viscosity, high sugar concentration, low water content, the presence of hydrogen peroxide and non-peroxidase components, particularly methylglyoxal (MGO), phenolic acids, flavonoids, proteins, peptides, and non-peroxidase glycopeptides. Honey has antibacterial action (it has effectiveness against bacteria, e.g. Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Acinetobacter, etc.), antifungal (effectiveness against Candida spp., Aspergillus spp., Fusarium spp., Rhizopus spp., and Penicillium spp.), antiviral (effectiveness against SARS-CoV-2, Herpes simplex virus type 1, Influenza virus A and B, Varicella zoster virus), and antiparasitic action (effectiveness against Plasmodium berghei, Giardia and Trichomonas, Toxoplasma gondii) demonstrated by numerous studies that are comprised and discussed in this review.
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Affiliation(s)
- Liliana Luca
- Suceava-Botoșani Regional Innovative Bioeconomy Cluster Association, 720229 Suceava, Romania
| | - Daniela Pauliuc
- Faculty of Food Engineering, Stefan cel Mare University of Suceava, 720229 Suceava, Romania
| | - Mircea Oroian
- Faculty of Food Engineering, Stefan cel Mare University of Suceava, 720229 Suceava, Romania
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Mitropoulou G, Kompoura V, Nelios G, Kourkoutas Y. Pathogenic Biofilm Removal Potential of Wild-Type Lacticaseibacillus rhamnosus Strains. Pathogens 2023; 12:1449. [PMID: 38133332 PMCID: PMC10748307 DOI: 10.3390/pathogens12121449] [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: 10/30/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023] Open
Abstract
The emergence of antimicrobial resistance remains one of the greatest public health concerns. Biofilm formation has been postulated as a mechanism of microbial pathogens to resist antimicrobial agents. Lactic Acid Bacteria (LAB) and their metabolites have been proposed to combat bacterial biofilms due to their antimicrobial activity. In this vein, the aim of the present study was to investigate the biofilm removal potential of cell-free supernatants (CFSs) of five wild-type Lacticaseibacillus rhamnosus strains, isolated from Greek natural products, in comparison to the commercially available L. rhamnosus GG strain, against biofilms formed by common foodborne pathogens (Salmonella Enteritidis, Salmonella Typhimurium, Escherichia coli, Listeria monocytogenes, and Staphylococcus aureus). The biofilm removal activity of LAB was assessed on a two-day-old mature biofilm using a microtiter plate-based procedure. Both non-neutralized and neutralized CFSs removed biofilms in a concentration-dependent manner. The biofilm removal activity of the non-neutralized CFSs was significantly higher compared to the neutralized CFSs, as expected, with ranges of 60-89% and 30-80%, respectively. The biofilm removal efficiency of L. rhamnosus OLXAL-3 was significantly higher among the wild-type L. rhamnosus strains tested (20-100% v/v). In conclusion, our results suggest the great potential of the application of wild-type L. rhamnosus strain' CFSs as effective natural agents against pathogenic bacterial biofilms.
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Affiliation(s)
| | | | | | - Yiannis Kourkoutas
- Laboratory of Applied Microbiology and Biotechnology, Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (G.M.); (V.K.); (G.N.)
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Khataybeh B, Jaradat Z, Ababneh Q. Anti-bacterial, anti-biofilm and anti-quorum sensing activities of honey: A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116830. [PMID: 37400003 DOI: 10.1016/j.jep.2023.116830] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/31/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Man has used honey to treat diseases since ancient times, perhaps even before the history of medicine itself. Several civilizations have utilized natural honey as a functional and therapeutic food to ward off infections. Recently, researchers worldwide have been focusing on the antibacterial effects of natural honey against antibiotic-resistant bacteria. AIM OF THE STUDY This review aims to summarize research on the use of honey properties and constituents with their anti-bacterial, anti-biofilm, and anti-quorum sensing mechanisms of action. Further, honey's bacterial products, including probiotic organisms and antibacterial agents which are produced to curb the growth of other competitor microorganisms is addressed. MATERIALS AND METHODS In this review, we have provided a comprehensive overview of the antibacterial, anti-biofilm, and anti-quorum sensing activities of honey and their mechanisms of action. Furthermore, the review addressed the effects of antibacterial agents of honey from bacterial origin. Relevant information on the antibacterial activity of honey was obtained from scientific online databases such as Web of Science, Google Scholar, ScienceDirect, and PubMed. RESULTS Honey's antibacterial, anti-biofilm, and anti-quorum sensing activities are mostly attributed to four key components: hydrogen peroxide, methylglyoxal, bee defensin-1, and phenolic compounds. The performance of bacteria can be altered by honey components, which impact their cell cycle and cell morphology. To the best of our knowledge, this is the first review that specifically summarizes every phenolic compound identified in honey along with their potential antibacterial mechanisms of action. Furthermore, certain strains of beneficial lactic acid bacteria such as Bifidobacterium, Fructobacillus, and Lactobacillaceae, as well as Bacillus species can survive and even grow in honey, making it a potential delivery system for these agents. CONCLUSION Honey could be regarded as one of the best complementary and alternative medicines. The data presented in this review will enhance our knowledge of some of honey's therapeutic properties as well as its antibacterial activities.
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Affiliation(s)
- Batool Khataybeh
- Department of Nutrition and Food Technology, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Ziad Jaradat
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan.
| | - Qutaiba Ababneh
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Mandal S, Mandal NC. Formulation of food grade Limosilactobacillus fermentum for antifungal properties isolated from home-made curd. Sci Rep 2023; 13:20371. [PMID: 37990131 PMCID: PMC10663458 DOI: 10.1038/s41598-023-45487-4] [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: 07/17/2023] [Accepted: 10/19/2023] [Indexed: 11/23/2023] Open
Abstract
Food spoilage has become a worldwide problem. Limosilactobacillus fermentum LAB212, isolated from home-made curd produces some potent antifungal compounds which can combat a wide range of spoilage and pathogenic fungi by disrupting their cell wall. Dual culture overlay assay and co-culture assay have confirmedly shown the potentiality of the strain. DOWEX50H + extraction and chemical characterization by high performance liquid chromatography show that lactic acid and acetic acid are playing the key roles in executing the antifungal activity. DPPH scavenging assay proves that the strain also exhibits a good antioxidant activity. After observing all the beneficial features and social need of the chemical preservative free food it is becoming highly prospective to exploite the strain commercially. In an experiment conducted for 180 days it was standardized that LAB212 supplemented with MRS and inulin is found most effective combination when challenged against the spoilage fungal species of Aspergillus flavus VBAH14, Penicillium rubens VBCA11, thus can be used as a very effective preservative agent. Using this strain as bio-preservative agent will also minimize the food borne diseases.
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Affiliation(s)
- Sucheta Mandal
- Mycology and Plant Pathology Laboratory, Department of Botany, Visva-Bharati, Santiniketan, 731235, West Bengal, India.
- Department of Botany, Banwarilal Bhalotia College, Paschim Bardhaman, Asansol, 713303, West Bengal, India.
| | - Narayan Chandra Mandal
- Mycology and Plant Pathology Laboratory, Department of Botany, Visva-Bharati, Santiniketan, 731235, West Bengal, India
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5
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Yang J, Yang H, Li Y. The triple interactions between gut microbiota, mycobiota and host immunity. Crit Rev Food Sci Nutr 2023; 63:11604-11624. [PMID: 35776086 DOI: 10.1080/10408398.2022.2094888] [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] [Indexed: 02/07/2023]
Abstract
The gut microbiome is mainly composed of microbiota and mycobiota, both of which play important roles in the development of the host immune system, metabolic regulation, and maintenance of intestinal homeostasis. With the increasing awareness of the pathogenic essence of infectious, immunodeficiency, and tumor-related diseases, the interactions between gut bacteria, fungi, and host immunity have been shown to directly influence the disease process or final therapeutic outcome, and collaborative and antagonistic relationships are commonly found between bacteria and fungi. Interventions represented by probiotics, prebiotics, engineered probiotics, fecal microbiota transplantation (FMT), and drugs can effectively modulate the triple interactions. In particular, traditional probiotics represented by Bifidobacterium and Lactobacillus and next-generation probiotics represented by Akkermansia muciniphila and Faecalibacterium prausnitzii showed a high enrichment trend in the gut of patients with a high response to inflammation remission and tumor immunotherapy, which predicts the potential medicinal value of these beneficial microbial formulations. However, there are bottlenecks in all these interventions that need to be broken. Meanwhile, further unraveling the underlying mechanisms of the "triple interactions" model can guide precise interventions and ultimately improve the efficiency of interventions on the host gut microbiome and immune modulation, thus directly or indirectly improving anti-inflammatory and tumor immunotherapy effects.
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Affiliation(s)
- Jingpeng Yang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Hong Yang
- State Key Laboratory of Microbial Metabolism, and School of Life Science & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yanan Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
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De Simone N, Rocchetti MT, la Gatta B, Spano G, Drider D, Capozzi V, Russo P, Fiocco D. Antimicrobial Properties, Functional Characterisation and Application of Fructobacillus fructosus and Lactiplantibacillus plantarum Isolated from Artisanal Honey. Probiotics Antimicrob Proteins 2023; 15:1406-1423. [PMID: 36173591 PMCID: PMC10491547 DOI: 10.1007/s12602-022-09988-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2022] [Indexed: 11/26/2022]
Abstract
Honey is a valuable reservoir of lactic acid bacteria (LAB) and, particularly, of fructophilic LAB (FLAB), a relatively novel subgroup of LAB whose functional potential for human and food application has yet to be explored. In this study, FLAB and LAB strains have been isolated from honeys of different floral origins and selected for their broad antimicrobial activity against typical foodborne pathogenic bacteria and spoilage filamentous fungi. The best candidates, two strains belonging to the species Lactiplantibacillus plantarum and Fructobacillus fructosus, were submitted to partial characterisation of their cell free supernatants (CFS) in order to identify the secreted metabolites with antimicrobial activity. Besides, these strains were examined to assess some major functional features, including in vitro tolerance to the oro-gastrointestinal conditions, potential cytotoxicity against HT-29 cells, adhesion to human enterocyte-like cells and capability to stimulate macrophages. Moreover, when the tested strains were applied on table grapes artificially contaminated with pathogenic bacteria or filamentous fungi, they showed a good ability to antagonise the growth of undesired microbes, as well as to survive on the fruit surface at a concentration that is recommended to develop a probiotic effect. In conclusion, both LAB and FLAB honey-isolated strains characterised in this work exhibit functional properties that validate their potential use as biocontrol agents and for the design of novel functional foods. We reported antimicrobial activity, cytotoxic evaluation, probiotic properties and direct food application of a F. fructosus strain, improving the knowledge of this species, in particular, and on FLAB, more generally.
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Affiliation(s)
- Nicola De Simone
- Department of Agriculture Food Natural Science Engineering (DAFNE), University of Foggia, via Napoli 25, 71122, Foggia, Italy
| | - Maria Teresa Rocchetti
- Department of Clinical and Experimental Medicine, University of Foggia, via Pinto 1, 71122, Foggia, Italy
| | - Barbara la Gatta
- Department of Agriculture Food Natural Science Engineering (DAFNE), University of Foggia, via Napoli 25, 71122, Foggia, Italy
| | - Giuseppe Spano
- Department of Agriculture Food Natural Science Engineering (DAFNE), University of Foggia, via Napoli 25, 71122, Foggia, Italy
| | - Djamel Drider
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte d'Opale, ICV-Institut Charles Viollette, 59000, Lille, France
| | - Vittorio Capozzi
- Institute of Sciences of Food Production, National Research Council (CNR) of Italy, c/o CS-DAT, Via Michele Protano, 71122, Foggia, Italy
| | - Pasquale Russo
- Department of Agriculture Food Natural Science Engineering (DAFNE), University of Foggia, via Napoli 25, 71122, Foggia, Italy.
| | - Daniela Fiocco
- Department of Clinical and Experimental Medicine, University of Foggia, via Pinto 1, 71122, Foggia, Italy.
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Ambros CL, Ehrmann MA. Distribution, inducibility, and characteristics of Latilactobacillus curvatus temperate phages. MICROBIOME RESEARCH REPORTS 2023; 2:34. [PMID: 38045928 PMCID: PMC10688831 DOI: 10.20517/mrr.2023.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/28/2023] [Accepted: 08/21/2023] [Indexed: 12/05/2023]
Abstract
Aim: Temperate phages are known to heavily impact the growth of their host, be it in a positive way, e.g., when beneficial genes are provided by the phage, or negatively when lysis occurs after prophage induction. This study provides an in-depth look into the distribution and variety of prophages in Latilactobacillus curvatus (L. curvatus). This species is found in a wide variety of ecological niches and is routinely used as a meat starter culture. Methods: Fourty five L. curvatus genomes were screened for prophages. The intact predicted prophages and their chromosomal integration loci were described. Six L. curvatus lysogens were analysed for phage-mediated lysis post induction via UV light and/or mitomycin C. Their lysates were analysed for phage particles via viral DNA sequencing and transmission electron microscopy. Results: Two hundred and six prophage sequences of any completeness were detected within L. curvatus genomes. The 50 as intact predicted prophages show high levels of genetic diversity on an intraspecies level with conserved regions mostly in the replication and head/tail gene clusters. Twelve chromosomal loci, mostly tRNA genes, were identified, where intact L. curvatus phages were integrated. The six analysed L. curvatus lysogens showed strain-dependent lysis in various degrees after induction, yet only four of their lysates appeared to contain fully assembled virions with the siphovirus morphotype. Conclusion: Our data demonstrate that L. curvatus is a (pro)phage-susceptible species, harbouring multiple intact prophages and remnant sequences thereof. This knowledge provides a basis to study phage-host interaction influencing microbial communities in food fermentations.
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Affiliation(s)
| | - Matthias A. Ehrmann
- Chair of Microbiology, School of Life Sciences, Technical University Munich (TUM), Freising 85354, Germany
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8
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Daisley BA, Pitek AP, Torres C, Lowery R, Adair BA, Al KF, Niño B, Burton JP, Allen-Vercoe E, Thompson GJ, Reid G, Niño E. Delivery mechanism can enhance probiotic activity against honey bee pathogens. THE ISME JOURNAL 2023; 17:1382-1395. [PMID: 37311937 PMCID: PMC10432525 DOI: 10.1038/s41396-023-01422-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 06/15/2023]
Abstract
Managed honey bee (Apis mellifera) populations play a crucial role in supporting pollination of food crops but are facing unsustainable colony losses, largely due to rampant disease spread within agricultural environments. While mounting evidence suggests that select lactobacilli strains (some being natural symbionts of honey bees) can protect against multiple infections, there has been limited validation at the field-level and few methods exist for applying viable microorganisms to the hive. Here, we compare how two different delivery systems-standard pollen patty infusion and a novel spray-based formulation-affect supplementation of a three-strain lactobacilli consortium (LX3). Hives in a pathogen-dense region of California are supplemented for 4 weeks and then monitored over a 20-week period for health outcomes. Results show both delivery methods facilitate viable uptake of LX3 in adult bees, although the strains do not colonize long-term. Despite this, LX3 treatments induce transcriptional immune responses leading to sustained decreases in many opportunistic bacterial and fungal pathogens, as well as selective enrichment of core symbionts including Bombilactobacillus, Bifidobacterium, Lactobacillus, and Bartonella spp. These changes are ultimately associated with greater brood production and colony growth relative to vehicle controls, and with no apparent trade-offs in ectoparasitic Varroa mite burdens. Furthermore, spray-LX3 exerts potent activities against Ascosphaera apis (a deadly brood pathogen) likely stemming from in-hive dispersal differences, whereas patty-LX3 promotes synergistic brood development via unique nutritional benefits. These findings provide a foundational basis for spray-based probiotic application in apiculture and collectively highlight the importance of considering delivery method in disease management strategies.
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Affiliation(s)
- Brendan A Daisley
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada
- Department of Microbiology & Immunology, University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Andrew P Pitek
- Department of Biology, The University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Christina Torres
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, 95616, USA
| | - Robin Lowery
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, 95616, USA
| | - Bethany A Adair
- Department of Biology, The University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Kait F Al
- Department of Microbiology & Immunology, University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Bernardo Niño
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, 95616, USA
- Agricultural Research Service, United States Department of Agriculture, Davis, CA, 95616, USA
| | - Jeremy P Burton
- Department of Microbiology & Immunology, University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Emma Allen-Vercoe
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Graham J Thompson
- Department of Biology, The University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Gregor Reid
- Department of Microbiology & Immunology, University of Western Ontario, London, ON, N6A 5B7, Canada
| | - Elina Niño
- Department of Entomology and Nematology, University of California, Davis, Davis, CA, 95616, USA.
- University of California Agriculture and Natural Resources, Oakland, CA, 95618, USA.
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Józefiak A, Rawski M, Kierończyk B, Józefiak D, Mazurkiewicz J. Effect of two insect meals on the gut commensal microbiome of healthy sea trout (Salmo trutta vr. trutta). BMC Vet Res 2023; 19:124. [PMID: 37580683 PMCID: PMC10424358 DOI: 10.1186/s12917-023-03671-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 07/21/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND The balance of the intestinal commensal microbiome of fish and other animals plays an important role in the physiological processes of healthy animals, contributes to the defense against pathogens, stimulates the immune system and facilitates nutrient metabolism. In the last decade, the interest in the application of the insects in fish nutrition increased, although little is known regarding the effects of insect meals on the gastrointenstinal tract microbiome of the sea trout fingerlings. The aim of this study was to evaluate the effect of two diets containing mealworm (MW) and superworm (SW) on the microbiome of the digesta of sea trout fingerlings and the relative abundances of different taxa among communities under controlled conditions. RESULTS The insect meals produced a similar weight gain and survival rate to sea trout fed fishmeal. The most abundant bacterial phylum in all the treatment groups was Firmicutes followed by Proteobacteria and Actinobacteria, and significant differences in the amount of Cyanobacteria were observed in the SW group. CONCLUSIONS The insect meals did not produce differences in the three most abundant phyla in the sea trout digesta. However, the effect of each type of meal on the lower taxonomic levels was evident, particularly in the case of the superworm meal. These microbiome differences indicated that mealworm meal was more related to fishmeal than superworm meal. Our results highlight the potential effects of insect meals, such as mealworm and superworm meals, on the microbiota of sea trout.
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Affiliation(s)
- Agata Józefiak
- Department of Preclinical Sciences and Infectious Diseases, Poznan University of Life Sciences, Wołyńska 35, 60-637, Poznań, Poland.
| | - Mateusz Rawski
- Division of Inland Fisheries and Aquaculture, Institute of Zoology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznań, Poland
| | - Bartosz Kierończyk
- Department of Animal Nutrition, Poznan University of Life Sciences, Wołyńska 33, 60-637, Poznań, Poland
| | - Damian Józefiak
- Department of Animal Nutrition, Poznan University of Life Sciences, Wołyńska 33, 60-637, Poznań, Poland
| | - Jan Mazurkiewicz
- Division of Inland Fisheries and Aquaculture, Institute of Zoology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625, Poznań, Poland
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Ben-Miled H, Semmar N, Castellanos MS, Ben-Mahrez K, Benoit-Biancamano MO, Réjiba S. Effect of honey bee forage plants in Tunisia on diversity and antibacterial potential of lactic acid bacteria and bifidobacteria from Apis mellifera intermissa and its products. Arch Microbiol 2023; 205:295. [PMID: 37480514 DOI: 10.1007/s00203-023-03630-9] [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: 03/27/2023] [Revised: 07/01/2023] [Accepted: 07/10/2023] [Indexed: 07/24/2023]
Abstract
Lactic acid bacteria and bifidobacteria (LAB and Bifido), isolated from the gastrointestinal tract of Apis mellifera intermissa (BGIT), honey (H), propolis (P) and bee bread (BB) of hives set in different vegetations (wildflowers, caraway, orange blossom, Marrubium vulgare, Eucalyptus and Erica cinerea), were subjected to analysis of their antibacterial potential. Isolates able to inhibit Staphylococcus aureus were selected and identified with MALDI-TOF MS leading to 154 strains representing 12 LAB and Bifido species. Lactiplantibacillus plantarum, Pediococcus pentosaceus and Enterococcus faecalis were predominantly found in all matrices. BGIT showed the highest LAB and Bifido diversity with exclusive occurrences of five species (including Bifidobacterium asteroides and Limosilactobacillus fermentum). Honey was the second origin harboring an important variety of LAB species of which Apilactobacillus kunkeei and Enterococcus mundtii were characteristic of both H and BGIT. Principal components analysis revealed associations between antibacterial activities of LAB and Bifido, matrices and honey bee forage plants. Inhibition trends of S. aureus and Citrobacter freundii were highlighted with: L. plantarum from BGIT, P, H of bees feeding on E. cinerea; Pediococcus pentosaceus from BGIT, P, BB associated with E. cinerea; and Bifidobacterium asteroides from BGIT/orange blossom system. However, Enterococcus faecium associated with BGIT/Eucalyptus system antagonized Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and Acinetobacter baumannii. Our findings highlighted noteworthy effects of bee forage plants on the antibacterial activity of LAB and Bifido. Our approach could be useful to identify multiple conditions promoting antibacterial potency of LAB and Bifido under the combined effects of feeding plants and living matrices.
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Affiliation(s)
- Houda Ben-Miled
- Biochemistry and Biotechnology Laboratory LR01ES05, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Nabil Semmar
- Laboratory of Bioinformatics, Biomathematics and Biostatistics (BIMS), Pasteur Institute of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Miguel Sautié Castellanos
- Plateforme IA-Agrosanté, Faculty of Veterinary Medicine, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, QC, J2S 2M2, Canada
| | - Kamel Ben-Mahrez
- Biochemistry and Biotechnology Laboratory LR01ES05, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Marie-Odile Benoit-Biancamano
- Groupe de Recherche sur les Maladies Infectieuses en Production Animale (GREMIP), Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, QC, J2S 2M2, Canada
| | - Samia Réjiba
- Biochemistry and Biotechnology Laboratory LR01ES05, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia.
- Higher Institute of Biotechnology, Biotechpole of Sidi Thabet, Sidi Thabet, BP-66, 2020, Ariana, Tunis, Tunisia.
- University of Manouba, 2010, Manouba, Tunis, Tunisia.
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11
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Divyashree S, Shruthi B, Vanitha P, Sreenivasa M. Probiotics and their postbiotics for the control of opportunistic fungal pathogens: A review. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2023; 38:e00800. [PMID: 37215743 PMCID: PMC10196798 DOI: 10.1016/j.btre.2023.e00800] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/11/2023] [Accepted: 05/03/2023] [Indexed: 05/24/2023]
Abstract
During past twenty years the opportunistic fungal infections have been emerging, causing morbidity and mortality. The fungi belonging to Aspergillus, Mucor, Rhizopus, Candida, Fusarium, Penicillium, Dermatophytes and others cause severe opportunistic fungal infections. Among these Aspergillus and Candida spp cause majority of the diseases. The continuum of fungal infections will prolong to progress in the surroundings of the growing inhabitants of immunocompromised individuals. Presently many chemical-based drugs were used as prophylactic and therapeutic agents. Prolonged usage of antibiotics may lead to some severe effect on the human health. Also, one of the major threats is that the fungal pathogens are becoming the drug resistant. There are many physical, chemical, and mechanical methods to prevent the contamination or to control the disease. Owing to the limitations that are observed in such methods, biological methods are gaining more interest because of the use of natural products which have comparatively less side effects and environment friendly. In recent years, research on the possible use of natural products such as probiotics for clinical use is gaining importance. Probiotics, one of the well studied biological products, are safe upon consumption and are explored to treat various fungal infections. The antifungal potency of major groups of probiotic cultures such as Lactobacillus spp, Leuconostoc spp, Saccharomyces etc. and their metabolic byproducts which act as postbiotics like organic acids, short chain fatty acids, bacteriocin like metabolites, Hydrogen peroxide, cyclic dipeptides etc. to inhibit these opportunistic fungal pathogens have been discussed here.
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12
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Breast milk from healthy women has higher anti- Candida properties than women with vaginal infections during pregnancy. Food Sci Biotechnol 2023; 32:471-480. [PMID: 36911325 PMCID: PMC9992674 DOI: 10.1007/s10068-022-01088-x] [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: 03/15/2022] [Revised: 04/07/2022] [Accepted: 04/10/2022] [Indexed: 11/04/2022] Open
Abstract
The aim of this study was to investigate the different immunological and antimicrobial properties of breast milk from women with (W) or without (WO) vaginal yeast infections during pregnancy in 85 lactating women (W, n = 43; WO, n = 42). Concentrations of IL-10, IgA, IgM, IgG, EGF, and TGF-α were similar in both groups. However, breast milk of women aged below 31 years old from the W-group showed higher concentration of EGF than the WO-group (p = 0.031). Breast milk from WO-group exhibited higher anti-Candida properties than W-group, both via growth inhibition and aggregation of yeast cells (p < 0.001). Correlation analysis showed that breast milk concentration of TGF-α positively correlated with concentrations of IL-10 (p = 0.001) and IgA (p = 0.021) in the W-group. Data from our present study shows that although breast milk from women with vaginal infections during pregnancy may not sufficiently hinder Candida growth, other immuno-modulatory bioactives may substitute for such a protective effect.
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13
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Lanza M, Scuderi SA, Capra AP, Casili G, Filippone A, Campolo M, Cuzzocrea S, Esposito E, Paterniti I. Effect of a combination of pea protein, grape seed extract and lactic acid in an in vivo model of bacterial vaginosis. Sci Rep 2023; 13:2849. [PMID: 36807330 PMCID: PMC9938223 DOI: 10.1038/s41598-023-28957-7] [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: 11/11/2022] [Accepted: 01/27/2023] [Indexed: 02/19/2023] Open
Abstract
Bacterial vaginosis (BV) is a common vaginal dysbiosis characterized by a malodorous discharge and irritation. The imbalance of the vaginal microbiota plays a key role in the development of BV. It has been demonstrated that Gardnerella vaginalis (GV), a facultative anaerobic bacillus, is involved in BV. Due to the rising number of antimicrobial-resistant species, recurrence of BV is becoming more frequent in women; thus, alternative treatments to antibiotics are needed. Natural substances have recently shown a great efficacy for the treatment of vaginal dysbiosis. Thus, this study aimed to investigate the beneficial effect of a product containing pea protein (PP), grape seed extract (GS) and lactic acid (LA) in an in vivo model of Gardnerella vaginalis-induced vaginosis by intravaginal administration of GV suspension (1 × 106 CFU/20 µL saline). Our results demonstrated that the product containing PP, GS and LA significantly reduced GV proliferation. More specifically, it significantly preserved tissue architecture and reduced neutrophil infiltration, inflammatory markers and sialidase activity when used both as a pre- or a post-treatment. Moreover, the product displayed strong bioadhesive properties. Therefore, our data suggested that the product containing PP, GS and LA could be used as alternative preventive or curative treatment for the management of BV.
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Affiliation(s)
- Marika Lanza
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
| | - Sarah Adriana Scuderi
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
| | - Anna Paola Capra
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
| | - Giovanna Casili
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
| | - Alessia Filippone
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
| | - Michela Campolo
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
| | - Salvatore Cuzzocrea
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D 'Alcontres, 31, 98166, Messina, Italy.
| | - Irene Paterniti
- grid.10438.3e0000 0001 2178 8421Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D ’Alcontres, 31, 98166 Messina, Italy
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14
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Cárdenas-Escudero J, Mármol-Rojas C, Escribano Pintor S, Galán-Madruga D, Cáceres JO. Honey polyphenols: regulators of human microbiota and health. Food Funct 2023; 14:602-620. [PMID: 36541681 DOI: 10.1039/d2fo02715a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A comprehensive review of research over the last decade was conducted to carry out this work. The main objective of this work is to present relevant evidence of the effect of honey intake on the human intestinal microbiota and its relationship with the improvement of various chronic diseases, such as cirrhosis, metabolic syndrome, diabetes, and obesity, among others. Therefore, this work focuses on the health-improving honey dietary supplementation implications associated with specific changes in the human microbiota and their biochemical mechanisms to enhance the proliferation of beneficial microorganisms and the inhibition of pathogenic microorganisms. Consumption of honey polyphenols significantly improves people's health conditions, especially in patients with chronic disease. Hence, honey intake unequivocally constitutes an alternative way to enhance health and could be used to prevent some relevant chronic diseases.
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Affiliation(s)
- J Cárdenas-Escudero
- Laser Chemistry Research Group, Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Plaza de Ciencias 1, 28040 Madrid, Spain. .,Analytical Chemistry Department, FCNET, Universidad de Panamá, Bella Vista, Manuel E. Batista and José De Fábrega av., Ciudad Universitaria, Estafeta Universitaria, 3366, Panamá 4, Panamá
| | - C Mármol-Rojas
- Laser Chemistry Research Group, Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Plaza de Ciencias 1, 28040 Madrid, Spain.
| | - S Escribano Pintor
- Laser Chemistry Research Group, Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Plaza de Ciencias 1, 28040 Madrid, Spain.
| | - D Galán-Madruga
- National Centre for Environmental Health. Carlos III Health Institute, Ctra. Majadahonda-Pozuelo km 2.2, 28220 Majadahonda, Madrid, Spain
| | - J O Cáceres
- Laser Chemistry Research Group, Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Plaza de Ciencias 1, 28040 Madrid, Spain.
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15
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Peng Q, Yang J, Wang Q, Suo H, Hamdy AM, Song J. Antifungal Effect of Metabolites from a New Strain Lactiplantibacillus Plantarum LPP703 Isolated from Naturally Fermented Yak Yogurt. Foods 2023; 12:foods12010181. [PMID: 36613401 PMCID: PMC9818598 DOI: 10.3390/foods12010181] [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: 11/29/2022] [Revised: 12/22/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023] Open
Abstract
The antifungal effect of metabolites produced by a new strain of Lactiplantibacillus (Lpb.) plantarum LPP703, isolated from naturally fermented yak yogurt, was investigated. The results showed that Lpb. plantarum LPP703 significantly inhibited four fungal species, including Penicillium sp., Rhizopus delemar, Aspergillus flavus, and Aspergillus niger. The metabolites produced after 20 h of Lpb. plantarum LPP703 fermentation showed the highest antifungal activity against Penicillium sp. Compared with the control group, the Lpb. plantarum LPP703 metabolites-treated Penicillium sp. spores were stained red by propidium iodide, indicating that the cell membrane of the fungal spores was damaged. Moreover, the antifungal effect of the Lpb. plantarum LPP703 metabolites on Penicillium sp. was not changed after heating or treatment with various proteases, but showed a sharp decrease when the pH value was regulated to 5.0 or above. The oleamide, trans-cinnamic acid, and citric acid were the three most abundant in the Lpb. plantarum LPP703 metabolites. Molecular docking predicated that the oleamide interacted with the active site of lanosterol 14-alpha-demethylase (CYP51, a crucial enzyme for fungal membrane integrity) through hydrogen bonds and had the lowest docking score, representing the strongest binding affinity to CYP51. Taken together, the metabolites from a new strain of Lpb. plantarum, LPP703, had potent antifungal activity against Penicillium sp., which might be associated with the damage of the active ingredient to fungal membrane integrity. This study indicated that Lpb. plantarum LPP703 and its metabolites might act as biological control agents to prevent fungal growth in the food industry.
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Affiliation(s)
- Qian Peng
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Chongqing Agricultural Product Processing Technology Innovation Platform, Chongqing 400715, China
| | - Jing Yang
- Chongqing Engineering Research Center for Processing & Storage of Distinct Agricultural Products, Chongqing Technology and Business University, Chongqing 400067, China
| | - Qiang Wang
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Chongqing Agricultural Product Processing Technology Innovation Platform, Chongqing 400715, China
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Chongqing Agricultural Product Processing Technology Innovation Platform, Chongqing 400715, China
| | - Ahmed Mahmoud Hamdy
- Dairy Science Department, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
| | - Jiajia Song
- College of Food Science, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China
- Chongqing Agricultural Product Processing Technology Innovation Platform, Chongqing 400715, China
- Correspondence:
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16
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Evaluation of shelf life and technological properties of bread elaborated with lactic acid bacteria fermented whey as a bio-preservation ingredient. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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17
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Doderlin: Isolation and Characterization of a Broad-Spectrum Antimicrobial Peptide from Lactobacillus acidophilus. Res Microbiol 2022. [DOI: 10.1016/j.resmic.2022.103995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Bergsma S, Euverink GJW, Charalampogiannis N, Poulios E, Janssens TKS, Achinas S. Biotechnological and Medical Aspects of Lactic Acid Bacteria Used for Plant Protection: A Comprehensive Review. BIOTECH 2022; 11:biotech11030040. [PMID: 36134914 PMCID: PMC9497054 DOI: 10.3390/biotech11030040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/22/2022] [Accepted: 08/29/2022] [Indexed: 11/25/2022] Open
Abstract
The use of chemical pesticides in agriculture goes hand in hand with some crucial problems. These problems include environmental deterioration and human health complications. To eliminate the problems accompanying chemical pesticides, biological alternatives should be considered. These developments spark interest in many environmental fields, including agriculture. In this review, antifungal compounds produced by lactic acid bacteria (LABs) are considered. It summarizes the worldwide distribution of pesticides and the effect of pesticides on human health and goes into detail about LAB species, their growth, fermentation, and their antifungal compounds. Additionally, interactions between LABs with mycotoxins and plants are discussed.
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Affiliation(s)
- Simon Bergsma
- Faculty of Science and Engineering; University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Correspondence: (S.B.); (S.A.)
| | - Gerrit Jan Willem Euverink
- Faculty of Science and Engineering; University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | | | - Efthymios Poulios
- 4th Department of Surgery, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Rimini 1, Chaidari, 12462 Athens, Greece
| | | | - Spyridon Achinas
- Faculty of Science and Engineering; University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Correspondence: (S.B.); (S.A.)
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19
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Salman M, Javed MR, Ali H, Mustafa G, Tariq A, Sahar T, Naheed S, Gill I, Abid M, Tawab A. Bioprotection of Zea mays L. from aflatoxigenic Aspergillus flavus by Loigolactobacillus coryniformis BCH-4. PLoS One 2022; 17:e0271269. [PMID: 35917314 PMCID: PMC9345345 DOI: 10.1371/journal.pone.0271269] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 06/28/2022] [Indexed: 11/19/2022] Open
Abstract
Fungal infection causes deterioration, discoloration, and loss of nutritional values of food products. The use of lactic acid bacteria has diverse applications in agriculture to combat pathogens and to improve the nutritional values of cereal grains. The current research evaluated the potential of Loigolactobacillus coryniformis BCH-4 against aflatoxins producing toxigenic Aspergillus flavus strain. The cell free supernatant (CFS) of Loig. coryniformis was used for the protection of Zea mays L. treated with A. flavus. No fungal growth was observed even after seven days. The FT-IR spectrum of untreated (T1: without any treatment) and treated maize grains (T2: MRS broth + A. flavus; T3: CFS + A. flavus) showed variations in peak intensities of functional group regions of lipids, proteins, and carbohydrates. Total phenolics, flavonoid contents, and antioxidant activity of T3 were significantly improved in comparison with T1 and T2. Aflatoxins were not found in T3 while observed in T2 (AFB1 and AFB2 = 487 and 16 ng/g each). HPLC analysis of CFS showed the presence of chlorogenic acid, p-coumaric acid, 4-hydroxybenzoic acid, caffeic acid, sinapic acid, salicylic acid, and benzoic acid. The presence of these acids in the CFS of Loig. coryniformis cumulatively increased the antioxidant contents and activity of T3 treated maize grains. Besides, CFS of Loig. coryniformis was passed through various treatments (heat, neutral pH, proteolytic enzymes and catalase), to observe its stability. It suggested that the inhibitory potential of CFS against A. flavus was due to the presence of organic acids, proteinaceous compounds and hydrogen peroxide. Conclusively, Loig. coryniformis BCH-4 could be used as a good bioprotecting agent for Zea mays L. by improving its nutritional and antioxidant contents.
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Affiliation(s)
- Mahwish Salman
- Department of Biochemistry, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
- * E-mail: (MS); (AT)
| | - Muhammad Rizwan Javed
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Hazrat Ali
- National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Ghulam Mustafa
- Department of Biochemistry, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Anam Tariq
- Department of Biochemistry, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Tanzila Sahar
- Department of Biochemistry, Government College Women University Faisalabad, Faisalabad, Pakistan
| | - Shazia Naheed
- Department of Chemistry, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Iqra Gill
- Department of Biochemistry, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Muhammad Abid
- Department of Statistics, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Abdul Tawab
- National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
- * E-mail: (MS); (AT)
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20
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Merzouki O, Arrousse N, El Barnossi A, Ech-chihbi E, Fernine Y, Housseini AI, Rais Z, Taleb M. Eco-friendly synthesis, characterization, in-silico ADMET and molecular docking analysis of novel carbazole derivatives as antibacterial and antifungal agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Xiong ZR, Cobo M, Whittal RM, Snyder AB, Worobo RW. Purification and characterization of antifungal lipopeptide produced by Bacillus velezensis isolated from raw honey. PLoS One 2022; 17:e0266470. [PMID: 35385565 PMCID: PMC8985968 DOI: 10.1371/journal.pone.0266470] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/21/2022] [Indexed: 01/22/2023] Open
Abstract
Raw honey contains a diverse microbiota originating from honeybees, plants, and soil. Some gram-positive bacteria isolated from raw honey are known for their ability to produce secondary metabolites that have the potential to be exploited as antimicrobial agents. Currently, there is a high demand for natural, broad-spectrum, and eco-friendly bio-fungicides in the food industry. Naturally occurring antifungal products from food-isolated bacteria are ideal candidates for agricultural applications. To obtain novel antifungals from natural sources, we isolated bacteria from raw clover and orange blossom honey to evaluate their antifungal-producing potential. Two Bacillus velezensis isolates showed strong antifungal activity against food-isolated fungal strains. Antifungal compound production was optimized by adjusting the growth conditions of these bacterial isolates. Extracellular proteinaceous compounds were purified via ammonium sulfate precipitation, solid phase extraction, and RP-HPLC. Antifungal activity of purified products was confirmed by deferred overlay inhibition assay. Mass spectrometry (MS) was performed to determine the molecular weight of the isolated compounds. Whole genome sequencing (WGS) was conducted to predict secondary metabolite gene clusters encoded by the two antifungal-producing strains. Using MS and WGS data, we determined that the main antifungal compound produced by these two Bacillus velezensis isolates was iturin A, a lipopeptide exhibiting broad spectrum antifungal activity.
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Affiliation(s)
- Zirui Ray Xiong
- Department of Food Science, Cornell University, Ithaca, NY, United States of America
- * E-mail:
| | - Mario Cobo
- Department of Food Science, Cornell University, Ithaca, NY, United States of America
| | - Randy M. Whittal
- Department of Chemistry, University of Alberta, Edmonton, AB, Canada
| | - Abigail B. Snyder
- Department of Food Science, Cornell University, Ithaca, NY, United States of America
| | - Randy W. Worobo
- Department of Food Science, Cornell University, Ithaca, NY, United States of America
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22
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Mani-López E, Arrioja-Bretón D, López-Malo A. The impacts of antimicrobial and antifungal activity of cell-free supernatants from lactic acid bacteria in vitro and foods. Compr Rev Food Sci Food Saf 2021; 21:604-641. [PMID: 34907656 DOI: 10.1111/1541-4337.12872] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 01/12/2023]
Abstract
Lactic acid bacteria (LAB) are distinguished by their ability to produce lactic acid, among other interesting metabolites with antimicrobial activity. A cell-free supernatant (CFS) is a liquid containing the metabolites resulting from microbial growth and the residual nutrients of the medium used. CFS from LAB can have antimicrobial activity due to organic acids, fatty acids, and proteinaceous compounds, among other compounds. This review aims to summarize the information about CFS production, CFS composition, and the antimicrobial (antibacterial and antifungal) activity of CFS from LAB in vitro, on foods, and in active packaging. In addition, the mechanisms of action of CFS on cells, the stability of CFS during storage, CFS cytotoxicity, and the safety of CFS are reviewed. The main findings are that CFS's antibacterial and antifungal activity in vitro has been widely studied, particularly in members of the genus Lactobacillus. CFS has produced strong inhibition of bacteria and molds on foods when applied directly or in active packaging. In most studies, the compounds responsible for antimicrobial activity are identified. A few studies indicate that CFSs are stable for 1 to 5 months at temperatures ranging from 4 to 35°C. The cytotoxicity of CFS on human cells has not been well studied. However, the studies that have been performed reported no toxicity of CFS. Therefore, it is necessary to investigate novel growth mediums for CFS preparation that are compatible with food sensory properties. More studies into CFS stability and cytotoxic effects are also needed.
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Affiliation(s)
- Emma Mani-López
- Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, Cholula, Puebla, Mexico
| | - Daniela Arrioja-Bretón
- Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, Cholula, Puebla, Mexico
| | - Aurelio López-Malo
- Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, Cholula, Puebla, Mexico
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23
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Zeng X, Jia H, Zhang X, Wang X, Wang Z, Gao Z, Yuan Y, Yue T. Supplementation of kefir ameliorates azoxymethane/dextran sulfate sodium induced colorectal cancer by modulating the gut microbiota. Food Funct 2021; 12:11641-11655. [PMID: 34724014 DOI: 10.1039/d1fo01729b] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The aim of this study was to investigate the efficacy of kefir on colorectal cancer (CRC) via regulating the microbiota structure in the colon using the azoxymethane/dextran sulfate sodium (AOM/DSS) induced CRC mouse model. Mice in the treatment group were orally administered with milk or kefir. The gut microbiota composition was assessed by internally transcribed spacer 2 (ITS2) and 16S rRNA high-throughput sequencing. Furthermore, the biomarkers associated with the gut barrier, inflammation, and cell proliferation regulators were evaluated. The results indicated that the size and the amount of tumor were decreased and the immunity regulators (TNF-α, IL-6, and IL-17a) and oncocyte proliferation indicator (Ki67, NF-κB, and β-catenin) were all decreased. Increased short chain fatty acids (SCFAs) lowered the pH in the colon and helped enhance the intestinal barrier. The Firmicutes/Bacteroidetes ratio and Ascomycota/Basidiomycota ratio were decreased at the phylum level; the relative abundance of probiotics was increased and the pathogenic bacterium (Clostridium sensu stricto, Aspergillus and Talaromyces) were decreased after supplementation of kefir. Consequently, kefir could regulate the gut microbiota composition and ameliorate AOM/DSS induced colorectal cancer.
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Affiliation(s)
- Xuejun Zeng
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Hang Jia
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Xiao Zhang
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Xin Wang
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A & F University, Yangling, 712100, China. .,Laboratory of Quality & Safety Risk Assessment for Agri-products (Yangling), Ministry of Agriculture, Yangling, 712100, China.,College of Food Science and Technology, Northwest University, Xi'an, 710069, China
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24
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Stan D, Enciu AM, Mateescu AL, Ion AC, Brezeanu AC, Stan D, Tanase C. Natural Compounds With Antimicrobial and Antiviral Effect and Nanocarriers Used for Their Transportation. Front Pharmacol 2021; 12:723233. [PMID: 34552489 PMCID: PMC8450524 DOI: 10.3389/fphar.2021.723233] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/24/2021] [Indexed: 12/22/2022] Open
Abstract
Due to the increasing prevalence of life-threatening bacterial, fungal and viral infections and the ability of these human pathogens to develop resistance to current treatment strategies, there is a great need to find and develop new compunds to combat them. These molecules must have low toxicity, specific activity and high bioavailability. The most suitable compounds for this task are usually derived from natural sources (animal, plant or even microbial). In this review article, the latest and most promising natural compounds used to combat bacteria, filamentous fungi and viruses are presented and evaluated. These include plant extracts, essential oils, small antimicrobial peptides of animal origin, bacteriocins and various groups of plant compounds (triterpenoids; alkaloids; phenols; flavonoids) with antimicrobial and antiviral activity. Data are presented on the inhibitory activity of each natural antimicrobial substance and on the putative mechanism of action against bacterial and fungal strains. The results show that among the bioactive compounds studied, triterpenoids have significant inhibitory activity against coronaviruses, but flavonoids have also been shown to inhibit SARS-COV-2. The last chapter is devoted to nanocarriers used to improve stability, bioavailability, cellular uptake/internalization, pharmacokinetic profile and reduce toxicity of natural compunds. There are a number of nanocarriers such as liposomes, drug delivery microemulsion systems, nanocapsules, solid lipid nanoparticles, polymeric micelles, dendrimers, etc. However, some of the recent studies have focused on the incorporation of natural substances with antimicrobial/antiviral activity into polymeric nanoparticles, niosomes and silver nanoparticles (which have been shown to have intrinsic antimicrobial activity). The natural antimicrobials isolated from animals and microorganisms have been shown to have good inhibitory effect on a range of pathogens, however the plants remain the most prolific source. Even if the majority of the studies for the biological activity evaluation are in silico or in vitro, their internalization in the optimum nanocarriers represents the future of “green therapeutics” as shown by some of the recent work in the field.
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Affiliation(s)
- Diana Stan
- DDS Diagnostic, Bucharest, Romania.,Titu Maiorescu University, PhD Medical School, Bucharest, Romania
| | - Ana-Maria Enciu
- Victor Babes National Institute of Pathology, Biochemistry-Proteomics Department, Bucharest, Romania
| | | | | | - Ariana Cristina Brezeanu
- Carol Davila University of Medicine and Pharmacy-Department of Plastic Surgery, Bucharest, Romania
| | | | - Cristiana Tanase
- Victor Babes National Institute of Pathology, Biochemistry-Proteomics Department, Bucharest, Romania.,Titu Maiorescu University, Faculty of Medicine, Bucharest, Romania
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Probiotic Properties and Potentiality of Lactiplantibacillus plantarum Strains for the Biological Control of Chalkbrood Disease. J Fungi (Basel) 2021; 7:jof7050379. [PMID: 34066127 PMCID: PMC8151994 DOI: 10.3390/jof7050379] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 01/22/2023] Open
Abstract
Ascosphaera apis is an entomopathogenic fungus that affects honeybees. In stressful conditions, this fungus (due not only to its presence, but also to the combination of other biotic and abiotic stressors) can cause chalkbrood disease. In recent years, there has been increasing attention paid towards the use of lactic acid bacteria (LAB) in the honeybees' diets to improve their health, productivity and ability to resist infections by pathogenic microorganisms. The screening of 22 strains of Lactiplantibacillus plantarum, isolated from the gastrointestinal tracts of honeybees and beebread, led to the selection of five strains possessing high antagonistic activity against A. apis. This study focused on the antifungal activity of these five strains against A. apis DSM 3116 and DSM 3117 using different matrices: cell lysate, broth culture, cell-free supernatant and cell pellet. In addition, some functional properties and the antioxidant activity of the five L. plantarum strains were evaluated. All five strains exhibited high antagonistic activity against A. apis, good surface cellular properties (extracellular polysaccharide (EPS) production and biofilm formation) and antioxidant activity. Although preliminary, these results are encouraging, and in future investigations, the effectiveness of these bacteria as probiotics in honeybee nutrition will be tested in vivo in the context of an eco-friendly strategy for the biological control of chalkbrood disease.
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Honey quality parameters, chemical composition and antimicrobial activity in twelve Ecuadorian stingless bees (Apidae: Apinae: Meliponini) tested against multiresistant human pathogens. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110737] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Nowak A, Szczuka D, Górczyńska A, Motyl I, Kręgiel D. Characterization of Apis mellifera Gastrointestinal Microbiota and Lactic Acid Bacteria for Honeybee Protection-A Review. Cells 2021; 10:cells10030701. [PMID: 33809924 PMCID: PMC8004194 DOI: 10.3390/cells10030701] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 12/15/2022] Open
Abstract
Numerous honeybee (Apis mellifera) products, such as honey, propolis, and bee venom, are used in traditional medicine to prevent illness and promote healing. Therefore, this insect has a huge impact on humans’ way of life and the environment. While the population of A. mellifera is large, there is concern that widespread commercialization of beekeeping, combined with environmental pollution and the action of bee pathogens, has caused significant problems for the health of honeybee populations. One of the strategies to preserve the welfare of honeybees is to better understand and protect their natural microbiota. This paper provides a unique overview of the latest research on the features and functioning of A. mellifera. Honeybee microbiome analysis focuses on both the function and numerous factors affecting it. In addition, we present the characteristics of lactic acid bacteria (LAB) as an important part of the gut community and their special beneficial activities for honeybee health. The idea of probiotics for honeybees as a promising tool to improve their health is widely discussed. Knowledge of the natural gut microbiota provides an opportunity to create a broad strategy for honeybee vitality, including the development of modern probiotic preparations to use instead of conventional antibiotics, environmentally friendly biocides, and biological control agents.
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Affiliation(s)
- Adriana Nowak
- Department of Environmental Biotechnology, Lodz University of Technology, Wólczańska 171/173, 90-924 Łódź, Poland; (D.S.); (I.M.); (D.K.)
- Correspondence:
| | - Daria Szczuka
- Department of Environmental Biotechnology, Lodz University of Technology, Wólczańska 171/173, 90-924 Łódź, Poland; (D.S.); (I.M.); (D.K.)
| | - Anna Górczyńska
- Faculty of Law and Administration, University of Lodz, Kopcińskiego 8/12, 90-232 Łódź, Poland;
| | - Ilona Motyl
- Department of Environmental Biotechnology, Lodz University of Technology, Wólczańska 171/173, 90-924 Łódź, Poland; (D.S.); (I.M.); (D.K.)
| | - Dorota Kręgiel
- Department of Environmental Biotechnology, Lodz University of Technology, Wólczańska 171/173, 90-924 Łódź, Poland; (D.S.); (I.M.); (D.K.)
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Ali AM, Kunugi H. Propolis, Bee Honey, and Their Components Protect against Coronavirus Disease 2019 (COVID-19): A Review of In Silico, In Vitro, and Clinical Studies. Molecules 2021; 26:1232. [PMID: 33669054 PMCID: PMC7956496 DOI: 10.3390/molecules26051232] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 12/14/2022] Open
Abstract
Despite the virulence and high fatality of coronavirus disease 2019 (COVID-19), no specific antiviral treatment exists until the current moment. Natural agents with immune-promoting potentials such as bee products are being explored as possible treatments. Bee honey and propolis are rich in bioactive compounds that express strong antimicrobial, bactericidal, antiviral, anti-inflammatory, immunomodulatory, and antioxidant activities. This review examined the literature for the anti-COVID-19 effects of bee honey and propolis, with the aim of optimizing the use of these handy products as prophylactic or adjuvant treatments for people infected with severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2). Molecular simulations show that flavonoids in propolis and honey (e.g., rutin, naringin, caffeic acid phenyl ester, luteolin, and artepillin C) may inhibit viral spike fusion in host cells, viral-host interactions that trigger the cytokine storm, and viral replication. Similar to the potent antiviral drug remdesivir, rutin, propolis ethanolic extract, and propolis liposomes inhibited non-structural proteins of SARS-CoV-2 in vitro, and these compounds along with naringin inhibited SARS-CoV-2 infection in Vero E6 cells. Propolis extracts delivered by nanocarriers exhibit better antiviral effects against SARS-CoV-2 than ethanolic extracts. In line, hospitalized COVID-19 patients receiving green Brazilian propolis or a combination of honey and Nigella sativa exhibited earlier viral clearance, symptom recovery, discharge from the hospital as well as less mortality than counterparts receiving standard care alone. Thus, the use of bee products as an adjuvant treatment for COVID-19 may produce beneficial effects. Implications for treatment outcomes and issues to be considered in future studies are discussed.
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Affiliation(s)
- Amira Mohammed Ali
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-0031, Japan;
- Department of Psychiatric Nursing and Mental Health, Faculty of Nursing, Alexandria University, Alexandria 21527, Egypt
| | - Hiroshi Kunugi
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-0031, Japan;
- Department of Psychiatry, Teikyo University School of Medicine, Tokyo 173-8605, Japan
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Jiang S, Cai L, Lv L, Li L. Pediococcus pentosaceus, a future additive or probiotic candidate. Microb Cell Fact 2021; 20:45. [PMID: 33593360 PMCID: PMC7885583 DOI: 10.1186/s12934-021-01537-y] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 02/04/2021] [Indexed: 12/12/2022] Open
Abstract
Background Pediococcus pentosaceus, a promising strain of lactic acid bacteria (LAB), is gradually attracting attention, leading to a rapid increase in experimental research. Due to increased demand for practical applications of microbes, the functional and harmless P. pentosaceus might be a worthwhile LAB strain for both the food industry and biological applications. Results As an additive, P. pentosaceus improves the taste and nutrition of food, as well as the storage of animal products. Moreover, the antimicrobial abilities of Pediococcus strains are being highlighted. Evidence suggests that bacteriocins or bacteriocin-like substances (BLISs) produced by P. pentosaceus play effective antibacterial roles in the microbial ecosystem. In addition, various strains of P. pentosaceus have been highlighted for probiotic use due to their anti-inflammation, anticancer, antioxidant, detoxification, and lipid-lowering abilities. Conclusions Therefore, it is necessary to continue studying P. pentosaceus for further use. Thorough study of several P. pentosaceus strains should clarify the benefits and drawbacks in the future.
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Affiliation(s)
- Shiman Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lingzhi Cai
- The Infectious Diseases Department, The First People's Hospital of Wenling, The Affiliated Wenling Hospital of Wenzhou Medical University, Taizhou, China
| | - Longxian Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases and Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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Effect of yeasts on food quality and safety and possibilities of their inhibition. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2020.11.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Mohd Kamal DA, Ibrahim SF, Kamal H, Kashim MIAM, Mokhtar MH. Physicochemical and Medicinal Properties of Tualang, Gelam and Kelulut Honeys: A Comprehensive Review. Nutrients 2021; 13:nu13010197. [PMID: 33435215 PMCID: PMC7827892 DOI: 10.3390/nu13010197] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 12/18/2022] Open
Abstract
Tualang, Gelam and Kelulut honeys are tropical rainforest honeys reported to have various medicinal properties. Studies related to the medicinal properties and physicochemical characteristics of these honeys are growing extensively and receiving increased attention. This review incorporated and analysed the findings on the biological and physicochemical properties of these honeys. Tualang, Gelam and Kelulut honeys were found to possess a wide variety of biological effects attributed to their physicochemical characteristics. Findings revealed that these honeys have anti-diabetic, anti-obesity, anti-cancer, anti-oxidative, anti-microbial, anti-inflammatory and wound-healing properties and effects on the cardiovascular system, nervous system and reproductive system. The physicochemical properties of these honeys were compared and discussed and results showed that they have high-quality contents and excellent antioxidant sources.
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Affiliation(s)
- Datu Agasi Mohd Kamal
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (D.A.M.K.); (S.F.I.); (H.K.)
- Department of Biomedical Sciences and Therapeutics, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Siti Fatimah Ibrahim
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (D.A.M.K.); (S.F.I.); (H.K.)
| | - Haziq Kamal
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (D.A.M.K.); (S.F.I.); (H.K.)
| | - Mohd Izhar Ariff Mohd Kashim
- Centre for Contemporary Fiqh and Sharia Compliance, Faculty of Islamic Studies, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia;
- Institute of Islam Hadhari, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
| | - Mohd Helmy Mokhtar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (D.A.M.K.); (S.F.I.); (H.K.)
- Correspondence: ; Tel.: +60-3-9145-8619
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Tejerina MR, Cabana MJ, Benitez-Ahrendts MR. Strains of Lactobacillus spp. reduce chalkbrood in Apis mellifera. J Invertebr Pathol 2020; 178:107521. [PMID: 33347864 DOI: 10.1016/j.jip.2020.107521] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 12/09/2020] [Accepted: 12/12/2020] [Indexed: 01/21/2023]
Abstract
Beekeeping activities have increased recently in Argentina, a country that is a major consumer of honey and other products from hives. With the advancement of monoculture areas in Argentina and worldwide, beekeepers move from one area to another in search of floral resources, thus spreading diseases such as chalkbrood, caused by the fungus Ascosphaera apis. Although there are few effective antifungals for the control of chalkbrood, different natural products have been investigated in recent years. Current research is focusing on the intestinal microbiota for the prevention of different pathogens and parasites. In this work, we analyzed the in vivo probiotic effect of three lactic acid bacteria (genus Lactobacillus spp.) isolated from pollen bread from apiaries of Jujuy province on A. apis strains from Spanish and Argentine provinces. Special hives were made for the assays, and a protective effect was observed in larvae of bees fed lactic acid bacteria added to sugar syrup at 105 CFU/mL concentrations, administered from May to September in two consecutive years. The results showed that the three lactic acid bacteria reduced larval mummification by percentages greater than 80%. Therefore, this work brings a first approximation of the in vivo probiotic effect of lactic bacteria against A. apis.
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Affiliation(s)
- Marcos Raúl Tejerina
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600 Jujuy, Argentina; Instituto de Ecorregiones Andinas (INECOA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Bolivia 1239, San Salvador de Jujuy, Jujuy, Argentina.
| | - María José Cabana
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600 Jujuy, Argentina
| | - Marcelo Rafael Benitez-Ahrendts
- Cátedra de Microbiología, Sanidad apícola y Meliponícola, Facultad de Ciencias Agrarias, Universidad Nacional de Jujuy, Alberdi 47, 4600 Jujuy, Argentina; Instituto de Ecorregiones Andinas (INECOA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Bolivia 1239, San Salvador de Jujuy, Jujuy, Argentina
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In vitro antibacterial activity of honey against multidrug-resistant Shigella sonnei. Complement Ther Clin Pract 2020; 41:101257. [PMID: 33157353 DOI: 10.1016/j.ctcp.2020.101257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND PURPOSE The health benefits of honey as an oral therapeutic agent for the treatment of diarrhoea caused by Shigella sonnei depend on the ability of honey to withstand human gastrointestinal conditions. This study aimed to investigate whether honey could withstand and inhibit the growth of Shigella sonnei under such conditions. MATERIALS AND METHODS We initially evaluated the survival of Shigella sonnei in human simulated gastric conditions (SGC) and simulated intestinal conditions (SIC). This was followed by determination of the susceptibility of Shigella sonnei to Manuka and Talah honey under gastrointestinal conditions. The colony forming units (CFU) of Shigella sonnei and minimum inhibitory concentrations (MICs) of honey were calculated. RESULTS Shigella sonnei was unable to survive in the acidic environment of the stomach without food matrix and survived only when inoculated with a food source, resulting in 1.5 × 105 ± 0.2 CFU at 60 min and 1.7 × 105 ± 0.3 CFU after 120 min of incubation. In SIC, it survived both with and without food matrix at the same CFU (1.2 × 107 ±0.4) at 60 min and 1.7 × 107 ±0.2 CFU after 120 min of incubation. Growth of Shigella sonnei was not observed in SGC in the presence of either honey at different concentrations without a food source. In the presence of a food source, Manuka honey inhibited the growth of Shigella sonnei at 10% v/v and Talah honey at 20% v/v dilutions in SGC. In SIC, Manuka honey inhibited the growth of Shigella sonnei at 15% and 20% v/v dilutions, whereas Talah honey inhibited Shigella sonnei at 20% and 25% v/v dilutions without and with food sources, respectively. CONCLUSION Shigella sonnei can survive in the acidic environment of the stomach if inoculated with a food source. Acidic pH and pepsin had no deleterious effects on the antibacterial capability of honey. However, bile reduced the antibacterial activity of honey in the intestinal environment.
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Inhibitory effect of bacteriocin produced by Pediococcus acidilactici on the biofilm formation of Salmonella Typhimurium. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107361] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Kalaycı Yüksek F, Gümüş D, Gündoğan Gİ, Anğ Küçüker M. Cell-Free Lactobacillus sp Supernatants Modulate Staphylococcus aureus Growth, Adhesion and Invasion to Human Osteoblast (HOB) Cells. Curr Microbiol 2020; 78:125-132. [PMID: 33108492 DOI: 10.1007/s00284-020-02247-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 10/09/2020] [Indexed: 11/24/2022]
Abstract
The increase of antibiotic resistance has become a problem. Probiotic bacteria play an important role in preventive/supportive medicine. Therefore, we examined the inhibitory effects of four different Lactobacillus species' (L. acidophilus-La, L. plantarum-Lp, L. fermentum-Lf and L. rhamnosus-Lr) cell-free supernatants (CFSs) on growth, adhesion, invasion, and biofilm formation of Staphylococcus aureus and effects of S. aureus, CFSs, and S. aureus-CFSs co-existence on human osteoblast (HOB) cell viability. Growth alterations were measured spectrophotometrically. Adhesive/invasive bacterial counts were detected by colony counting. Biofilm was evaluated using microtiter plate assay. The MTT assay was used for detection of HOB cell viability. The growth of MSSA significantly (P < 0.01) decreased in the presence of two CFSs (Lf and Lr) (P < 0.01); the growth of MRSA significantly (P < 0.05) reduced in the presence of La CFSs. All tested CFSs were found to reduce adhesion and invasion of MSSA (P < 0.0001). The adhesion of MRSA was enhanced (P < 0.0001) in the presence of all CFSs except La and the invasion of MRSA was decreased (P < 0.01) in the presence of Lr and Lf CFSs. All tested CFSs were shown to inhibit biofilm formation significantly (P < 0.0001). The reduction of S. aureus infected HOB cell viability and exposed to all CFSs except Lr that was found to be significant (P < 0.0001). The viability of HOB cell during co-incubation with MSSA and CFSs was shown to be decreased significantly. However co-existence of MRSA and CFSs did not alter HOB cell viability. These results suggested that lactobacilli as probiotics have low protective effects on MRSA-infected host cells.
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Affiliation(s)
- Fatma Kalaycı Yüksek
- Department of Medical Microbiology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey.
| | - Defne Gümüş
- Department of Medical Microbiology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey
| | - Gül İpek Gündoğan
- Department of Histology and Embryology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey
| | - Mine Anğ Küçüker
- Department of Medical Microbiology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey
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Chen Y, Yu L, Qiao N, Xiao Y, Tian F, Zhao J, Zhang H, Chen W, Zhai Q. Latilactobacillus curvatus: A Candidate Probiotic with Excellent Fermentation Properties and Health Benefits. Foods 2020; 9:E1366. [PMID: 32993033 PMCID: PMC7600897 DOI: 10.3390/foods9101366] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 02/02/2023] Open
Abstract
Latilactobacillus curvatus is a candidate probiotic that has been included in the list of recommended biological agents for certification by the European Food Safety Authority. According to the published genomic information, L. curvatus has several genes that encode metabolic pathways of carbohydrate utilization. In addition, there are some differences in cell surface complex related genes of L. curvatus from different sources. L. curvatus also has several genes that encode bacteriocin production, which can produce Curvacin A and Sakacin P. Due to its ability to produce bacteriocin, it is often used as a bioprotective agent in fermented meat products, to inhibit the growth of a variety of pathogenic and spoilage bacteria. L. curvatus exerts some probiotic effects, such as mediating the production of IL-10 by dendritic cells through NF-κB and extracellular regulated protein kinases (ERK) signals to relieve colitis in mice. This review is the first summary of the genomic and biological characteristics of L. curvatus. Our knowledge on its role in the food industry and human health is also discussed, with the aim of providing a theoretical basis for the development of applications of L. curvatus.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi 214122, China
| | - Nanzhen Qiao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yue Xiao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou 225004, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (L.Y.); (Y.C.); (N.Q.); (Y.X.); (F.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi 214122, China
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Jia L, Kosgey JC, Wang J, Yang J, Nyamao RM, Zhao Y, Teng X, Gao L, Wabo MC, Vasilyeva NV, Fang Y, Zhang F. Antimicrobial and mechanism of antagonistic activity of Bacillus sp. A2 against pathogenic fungus and bacteria: The implication on honey's regulatory mechanism on host's microbiota. Food Sci Nutr 2020; 8:4857-4867. [PMID: 32994947 PMCID: PMC7500754 DOI: 10.1002/fsn3.1770] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/12/2020] [Accepted: 06/15/2020] [Indexed: 12/19/2022] Open
Abstract
Honey is thought to act against microbes and regulates microbiota balance, and this is mainly attributed to the enzymatic production of hydrogen peroxide, high osmolarity, and nonperoxidase factors, for example, lysozyme and botanical sources of nectar, while the effect of honey's probiotic is recently considered. The study of honey as source of beneficial microbes is understudied. The purpose of this study was to screen for the beneficial microorganisms in honey with antagonistic property against important pathogens and the mechanism of antimicrobial activity and thus play a beneficial role as probiotics. The results showed that one out of the fourteen bacterial isolates had antimicrobial activity and was identified as Bacillus Sp. A2 by 16S rRNA sequence and morphology. Antimicrobial activity of the isolate against C. albicans, E. coli, and S. aureus was confirmed by Agar well diffusion and liquid coculture assays, and the propagation of those microbes was significantly inhibited after treatment with the isolate Bacillus sp. A2 (p < .05) in comparison with untreated negative control and positive control (fluconazole, chloramphenicol, L. plantarum). The morphological changes including the distorted shape with indentations and leakages (SEM), damaged cell membrane, and cell wall with the disintegration and attachment of the Bacillus sp. A2 (TEM) in treated C. albicans were observed. Meanwhile, reactive oxygen species accumulation and decreased mitochondrial membrane potential were detected in treated C. albicans. These results revealed that the isolate Bacillus sp. A2 from honey has significant antimicrobial activity (p < .05) against C. albicans in comparison with untreated negative control and positive control L. plantarum, which depends on the accumulation of reactive oxygen species, mitochondrial damage, and the cell apoptosis. We concluded that the Bacillus sp. A2 possess the antimicrobial property, which may contribute to regulation of host's microbiota as a beneficial microbe or probiotic.
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Affiliation(s)
- Lina Jia
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
| | - Janet Cheruiyot Kosgey
- School of biological and life sciences The Technical University of Kenya Nairobi Kenya
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
| | - Jielin Wang
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
| | - Jianxun Yang
- Department of Dermatology The 2nd Hospital of Harbin Medical University Harbin China
| | - Rose Magoma Nyamao
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
- School of Medicine Kenyatta University Nairobi Kenya
| | - Yi Zhao
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
| | - Xue Teng
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
| | - Lei Gao
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
| | | | - Natalia V Vasilyeva
- Department of Microbiology Kashkin Research Institute of Medical Mycology North-Western State Medical University named after I.I. Machnikov Saint Petersburg Russia
| | - Yong Fang
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
| | - Fengmin Zhang
- Department of Microbiology WU Lien-Teh Institute Harbin Medical University Harbin China
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38
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Ebrahimi M, Sadeghi A, Rahimi D, Purabdolah H, Shahryari S. Postbiotic and Anti-aflatoxigenic Capabilities of Lactobacillus kunkeei as the Potential Probiotic LAB Isolated from the Natural Honey. Probiotics Antimicrob Proteins 2020; 13:343-355. [PMID: 32803518 DOI: 10.1007/s12602-020-09697-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The use of probiotic, postbiotic, and anti-aflatoxigenic capabilities of the lactic acid bacteria (LAB) isolated from stressful niches is a major strategy to prepare functional cultures and bio-preservatives for food industries. In the present study, abundant LAB strains isolated from natural honey were screened based on their tolerance to continuous pH and bile salt treatments. Then, the pro-functional properties of the selected LAB were investigated. In accordance with the screening data, a bacilli isolate was selected for further characterization. Sequencing results led to the identification of Lactobacillus kunkeei as the selected LAB isolate. In vitro antibacterial and antifungal activities of the LAB and in situ antifungal activity of the isolate cell-free supernatant (CFS) were verified against food-borne indicators. Accordingly, in vitro antibacterial and antifungal effects of Lact. kunkeei ENH01 on respective Escherichia coli and Aspergillus niger were significantly (P < 0.05) higher than the other indicators. Furthermore, in situ inhibitory effect of Lact. kunkeei CFS on Candida albicans (as the highest in situ effect) was equal to 76.36%. The presence of three antibacterial peptides was also verified in the Lact. kunkeei CFS according to the results of liquid chromatography mass spectrometry (LC/MS) assay. Antibiotic susceptibility profile and auto-aggregation ability of the isolate were noticeable. Anti-mycotoxigenic capabilities of Lact. kunkeei ENH01 as viable and heat-killed cells were also revealed against total aflatoxins according to the HPLC-based analysis. In vivo safety of the isolate was also attested through the evaluation of blood biochemistry and hematological parameters in the Lact. kunkeei ENH01 fed-mice compared with the control. Based on the findings, probiotic properties of Lact. kunkeei ENH01 and postbiotic capabilities of the isolate CFS and its heat-killed cells were approved.
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Affiliation(s)
- Maryam Ebrahimi
- Food, Drug & Natural Products Health Research Center, Golestan University of Medical Science, Gorgan, Iran
| | - Alireza Sadeghi
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
| | - Delasa Rahimi
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Hosein Purabdolah
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Sara Shahryari
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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Minj J, Chandra P, Paul C, Sharma RK. Bio-functional properties of probiotic Lactobacillus: current applications and research perspectives. Crit Rev Food Sci Nutr 2020; 61:2207-2224. [PMID: 32519883 DOI: 10.1080/10408398.2020.1774496] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Lactic acid bacteria as a starter culture are very important component in the fermentation process of dairy and food industry. Application of lactic acid bacteria as probiotic bacteria adds more functionality to the developed product. Gut colonizing bacteria have attractive benefits related to human health. Bio-functional properties such as antimicrobial activity, anti-inflammatory, ACE-inhibitory, antioxidant, antidiarrheal, antiviral, immunomodulatory, hypocholesterolemic, anti-diabetic and anti-cancer activities are the most applicable research areas of lactic acid bacteria. Different strains of Lactobacillus are generally consumed as probiotics and colonize the gastrointestinal tract. Sometimes these bacteria may possess antimicrobial activity and may positively influence the effect of antibiotics. Use of Lactobacillus spp. for the development of functional foods is one of the promising areas of current research and applications. Individual bacterial species have unique biological activity, which may vary from strains to strains and identification of this uniqueness could be helpful in the development of functional and therapeutic food products.
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Affiliation(s)
- Jagrani Minj
- Department of Food Science and Technology, Nebraska Innovation Campus (NIC), University of Nebraska, Lincoln, Nebraska, USA
| | | | - Catherine Paul
- Department of Food Science and Technology, Nebraska Innovation Campus (NIC), University of Nebraska, Lincoln, Nebraska, USA
| | - Rakesh Kumar Sharma
- Department of Biosciences, Manipal University Jaipur, Jaipur, Rajasthan, India
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40
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Salari S, Ghasemi Nejad Almani P. Antifungal effects of Lactobacillus acidophilus and Lactobacillus plantarum against different oral Candida species isolated from HIV/ AIDS patients: an in vitro study. J Oral Microbiol 2020; 12:1769386. [PMID: 32922676 PMCID: PMC7448839 DOI: 10.1080/20002297.2020.1769386] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Oropharyngeal Candidiasis (OPC) is an opportunistic fungal infection occurring in immunocompromised patients such as HIV/AIDS. The purpose of this study was to evaluate the antifungal properties of Lactobacillus acidophilus and Lactobacillus plantarum on different Candida species isolated from oral cavity of HIV/AIDS patients compared to Fluconazole (FLC). In this study, the antifungal effects of both cells and cell-free supernatants (CFSs) of L. acidophilus and L. plantarum were investigated against different oral Candida species by co-aggregation, agar overlay interference and broth microdilution assays, respectively. Our results showed that the highest co-aggregation ratio of the two tested Lactic acid bacteria (LAB) was observed for C. krusei. Both L. acidophilus and L. plantarum at cell concentrations 1010 to 102 cfu/ml were able to inhibit the growth of most of the oral Candida species, except for C. albicans, and to some C. krusei. In this study, MIC and MFC values for CFS of L. acidophilus ranged from 100 to 200 µl/ml and 100 to 200 µl/ml, respectively, and MIC and MFC values for CFS of L. plantarum were 50 to 200 µl/ml and 50 to 200 µl/ml, respectively. The ranges of MIC and MFC for FLC were 256-1024 µg/ml and 512-2048 µg/ml, respectively. C. albicans and C. parapsilosis displayed the highest and least susceptibility to CFSs of two LAB, respectively. Our findings showed that both cells and CFSs of L. acidophilus and L. plantarum had antifungal effects against oral Candida species.
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Affiliation(s)
- Samira Salari
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman, Iran.,Students Research Committee, Kerman University of Medical Sciences, Kerman, Iran.,Department of Medical Parasitology and Mycology, Kerman University of Medical Sciences, Kerman, Iran
| | - Pooya Ghasemi Nejad Almani
- Students Research Committee, Kerman University of Medical Sciences, Kerman, Iran.,Department of Medical Parasitology and Mycology, Kerman University of Medical Sciences, Kerman, Iran.,Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
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41
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Competitive Exclusion Is a Major Bioprotective Mechanism of Lactobacilli against Fungal Spoilage in Fermented Milk Products. Appl Environ Microbiol 2020; 86:AEM.02312-19. [PMID: 32005739 PMCID: PMC7082583 DOI: 10.1128/aem.02312-19] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/23/2020] [Indexed: 02/07/2023] Open
Abstract
In societies that have food choices, conscious consumers demand natural solutions to keep their food healthy and fresh during storage, simultaneously reducing food waste. The use of “good bacteria” to protect food against spoilage organisms has a long, successful history, even though the molecular mechanisms are not fully understood. In this study, we show that the depletion of free manganese is a major bioprotective mechanism of lactobacilli in dairy products. High manganese uptake and intracellular storage provide a link to the distinct, nonenzymatic, manganese-catalyzed oxidative stress defense mechanism, previously described for certain lactobacilli. The evaluation of representative Lactobacillus species in our study identifies multiple relevant species groups for fungal growth inhibition via manganese depletion. Hence, through the natural mechanism of nutrient depletion, the use of dedicated bioprotective lactobacilli constitutes an attractive alternative to artificial preservation. A prominent feature of lactic acid bacteria (LAB) is their ability to inhibit growth of spoilage organisms in food, but hitherto research efforts to establish the mechanisms underlying bioactivity focused on the production of antimicrobial compounds by LAB. We show, in this study, that competitive exclusion, i.e., competition for a limited resource by different organisms, is a major mechanism of fungal growth inhibition by lactobacilli in fermented dairy products. The depletion of the essential trace element manganese by two Lactobacillus species was uncovered as the main mechanism for growth inhibition of dairy spoilage yeast and molds. A manganese transporter (MntH1), representing one of the highest expressed gene products in both lactobacilli, facilitates the exhaustive manganese scavenging. Expression of the mntH1 gene was found to be strain dependent, affected by species coculturing and the growth phase. Further, deletion of the mntH1 gene in one of the strains resulted in a loss of bioactivity, proving this gene to be important for manganese depletion. The presence of an mntH gene displayed a distinct phylogenetic pattern within the Lactobacillus genus. Moreover, assaying the bioprotective ability in fermented milk of selected lactobacilli from 10 major phylogenetic groups identified a correlation between the presence of mntH and bioprotective activity. Thus, manganese scavenging emerges as a common trait within the Lactobacillus genus, but differences in expression result in some strains showing more bioprotective effect than others. In summary, competitive exclusion through ion depletion is herein reported as a novel mechanism in LAB to delay the growth of spoilage contaminants in dairy products. IMPORTANCE In societies that have food choices, conscious consumers demand natural solutions to keep their food healthy and fresh during storage, simultaneously reducing food waste. The use of “good bacteria” to protect food against spoilage organisms has a long, successful history, even though the molecular mechanisms are not fully understood. In this study, we show that the depletion of free manganese is a major bioprotective mechanism of lactobacilli in dairy products. High manganese uptake and intracellular storage provide a link to the distinct, nonenzymatic, manganese-catalyzed oxidative stress defense mechanism, previously described for certain lactobacilli. The evaluation of representative Lactobacillus species in our study identifies multiple relevant species groups for fungal growth inhibition via manganese depletion. Hence, through the natural mechanism of nutrient depletion, the use of dedicated bioprotective lactobacilli constitutes an attractive alternative to artificial preservation.
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42
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Li XV, Leonardi I, Iliev ID. Gut Mycobiota in Immunity and Inflammatory Disease. Immunity 2019; 50:1365-1379. [PMID: 31216461 DOI: 10.1016/j.immuni.2019.05.023] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/01/2019] [Accepted: 05/29/2019] [Indexed: 02/08/2023]
Abstract
The mammalian intestine is colonized by a wealth of microorganisms-including bacteria, viruses, protozoa, and fungi-that are all integrated into a functional trans-kingdom community. Characterization of the composition of the fungal community-the mycobiota-has advanced further than the much-needed mechanistic studies. Recent findings have revealed roles for the gut mycobiota in the regulation of host immunity and in the development and progression of human diseases of inflammatory origin. We review these findings here while placing them in the context of the current understanding of the pathways and cellular networks that induce local and systemic immune responses to fungi in the gastrointestinal tract. We discuss gaps in knowledge and argue for the importance of considering bacteria-fungal interactions as we aim to define the roles of mycobiota in immune homeostasis and immune-associated pathologies.
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Affiliation(s)
- Xin V Li
- Gastroenterology and Hepatology Division, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA
| | - Irina Leonardi
- Gastroenterology and Hepatology Division, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA
| | - Iliyan D Iliev
- Gastroenterology and Hepatology Division, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA; Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, Cornell University, New York, NY 10065, USA.
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43
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Arfken AM, Frey JF, Ramsay TG, Summers KL. Yeasts of Burden: Exploring the Mycobiome-Bacteriome of the Piglet GI Tract. Front Microbiol 2019; 10:2286. [PMID: 31649634 PMCID: PMC6792466 DOI: 10.3389/fmicb.2019.02286] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 09/19/2019] [Indexed: 12/11/2022] Open
Abstract
Interactions between the bacteria and fungi in the gut microbiome can result in altered nutrition, pathogenicity of infection, and host development, making them a crucial component in host health. Associations between the mycobiome and bacteriome in the piglet gut, in the context of weaning, remain unknown. Weaning is a time of significant stress, dietary changes, microbial alterations, and a predisposition to infection. The loss of animal health and growth makes potential microbial interventions of interest to the swine industry. Recent studies have demonstrated the diversity and development of the microbiome in the gastrointestinal (GI) tract of piglets during weaning, resulting from the dietary and physiological changes. Despite these advances, the role of the mycobiota in piglet health and its contribution to overall microbiome development remains mostly unknown. In this study we investigated the bacteriome and the mycobiome after weaning in the GI tract organs and feces from 35-day old piglets. Following weaning, the α-diversity and amplicon sequence variants (ASVs) counts of the bacteriome increased, proximally to distally, from the stomach to the feces along the GI tract, while the mycobiome α-diversity and ASV counts were highest in the porcine stomach. β-diversity analyses show distinct clusters based on organ type in the bacteriome and mycobiome, but dispersion remained relatively constant in the mycobiome between organ/fecal sites. Bacteroidetes, Firmicutes, and Epsilonbacteraeota were the most abundant bacterial phyla present in the GI tract and feces based on mean taxonomic composition with high variation of composition found in the stomach. In the mycobiome, the dominant phyla were Ascomycota and Basidiomycota, and the stomach mycobiome did not demonstrate the same high level of variation observed in the bacteriome. Potential interactions between genera were found in the lower piglet GI bacteriome and mycobiome with positive correlations found between the fungus, Kazachstania, and several bacterial species, including Lactobacillus. Aspergillus demonstrated negative correlations with the short chain fatty acid-producing bacteria Butyricoccus, Subdoligranulum, and Fusicatenibacter. This study demonstrates the distinct colonization dynamics between fungi and bacteria in the GI tract and feces of piglets directly following weaning and the potential interactions of these microbes in the porcine gut ecosystem.
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Affiliation(s)
- Ann M Arfken
- Animal Biosciences and Biotechnology Laboratory, United States Department of Agriculture-Agricultural Research Service, Beltsville, MD, United States
| | - Juli Foster Frey
- Animal Biosciences and Biotechnology Laboratory, United States Department of Agriculture-Agricultural Research Service, Beltsville, MD, United States
| | - Timothy G Ramsay
- Animal Biosciences and Biotechnology Laboratory, United States Department of Agriculture-Agricultural Research Service, Beltsville, MD, United States
| | - Katie Lynn Summers
- Animal Biosciences and Biotechnology Laboratory, United States Department of Agriculture-Agricultural Research Service, Beltsville, MD, United States
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44
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Sadiq FA, Yan B, Tian F, Zhao J, Zhang H, Chen W. Lactic Acid Bacteria as Antifungal and Anti-Mycotoxigenic Agents: A Comprehensive Review. Compr Rev Food Sci Food Saf 2019; 18:1403-1436. [PMID: 33336904 DOI: 10.1111/1541-4337.12481] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 06/21/2019] [Accepted: 07/05/2019] [Indexed: 12/18/2022]
Abstract
Fungal contamination of food and animal feed, especially by mycotoxigenic fungi, is not only a global food quality concern for food manufacturers, but it also poses serious health concerns because of the production of a variety of mycotoxins, some of which present considerable food safety challenges. In today's mega-scale food and feed productions, which involve a number of processing steps and the use of a variety of ingredients, fungal contamination is regarded as unavoidable, even good manufacturing practices are followed. Chemical preservatives, to some extent, are successful in retarding microbial growth and achieving considerably longer shelf-life. However, the increasing demand for clean label products requires manufacturers to find natural alternatives to replace chemically derived ingredients to guarantee the clean label. Lactic acid bacteria (LAB), with the status generally recognized as safe (GRAS), are apprehended as an apt choice to be used as natural preservatives in food and animal feed to control fungal growth and subsequent mycotoxin production. LAB species produce a vast spectrum of antifungal metabolites to inhibit fungal growth; and also have the capacity to adsorb, degrade, or detoxify fungal mycotoxins including ochratoxins, aflatoxins, and Fusarium toxins. The potential of many LAB species to circumvent spoilage associated with fungi has been exploited in a variety of human food and animal feed stuff. This review provides the most recent updates on the ability of LAB to serve as antifungal and anti-mycotoxigenic agents. In addition, some recent trends of the use of LAB as biopreservative agents against fungal growth and mycotoxin production are highlighted.
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Affiliation(s)
- Faizan Ahmed Sadiq
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China
| | - Bowen Yan
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,National Engineering Research Center for Functional Food, Jiangnan Univ., Wuxi, 214122, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,National Engineering Research Center for Functional Food, Jiangnan Univ., Wuxi, 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan Univ., Wuxi, 214122, China.,National Engineering Research Center for Functional Food, Jiangnan Univ., Wuxi, 214122, China
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45
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Siedler S, Balti R, Neves AR. Bioprotective mechanisms of lactic acid bacteria against fungal spoilage of food. Curr Opin Biotechnol 2019; 56:138-146. [DOI: 10.1016/j.copbio.2018.11.015] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 11/20/2018] [Accepted: 11/20/2018] [Indexed: 12/20/2022]
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46
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Kim H, Kang SS. Antifungal activities against Candida albicans, of cell-free supernatants obtained from probiotic Pediococcus acidilactici HW01. Arch Oral Biol 2019; 99:113-119. [PMID: 30658319 DOI: 10.1016/j.archoralbio.2019.01.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 12/24/2018] [Accepted: 01/09/2019] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the antifungal activities of cell-free supernatants of a probiotic strain, Pediococcus acidilactici HW01, against Candida albicans. DESIGN C. albicans was cultured in the presence of different concentration of cell-free supernatants obtained from P. acidilactici HW01 (HW01 CFS) and the growth of C. albicans was determined. C. albicans was incubated with HW01 CFS for 24 h and the biofilm formation of C. albicans was determined by staining crystal violet and by using a scanning electron microscope. Biofilm quantification was determined by 2, 3-Bis (2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay. RESULTS HW01 CFS inhibitedC. albicans growth, whereas bacteriocin, which is a well-known antimicrobial peptide of lactic acid bacteria, failed to inhibit C. albicans growth. Pre-treatment and simultaneous treatment with HW01 CFS exhibited a significant inhibition of C. albicans biofilm. Although post-treatment with HW01 CFS did not disrupt the established biofilm of C. albicans at 3 h-incubation, significant reduced C. albicans biofilm was observed after 6 h-incubation in the presence of HW01 CFS. CONCLUSION These results suggested that the CFS fromP. acidilactici HW01 was revealed as an effective antifungal agent against C. albicans by reducing the growth and biofilm formation.
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Affiliation(s)
- Hyunjin Kim
- Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| | - Seok-Seong Kang
- Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University-Seoul, Goyang 10326, Republic of Korea.
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47
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Terán LC, Coeuret G, Raya R, Zagorec M, Champomier-Vergès MC, Chaillou S. Phylogenomic Analysis of Lactobacillus curvatus Reveals Two Lineages Distinguished by Genes for Fermenting Plant-Derived Carbohydrates. Genome Biol Evol 2018; 10:1516-1525. [PMID: 29850855 PMCID: PMC6007345 DOI: 10.1093/gbe/evy106] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2018] [Indexed: 12/20/2022] Open
Abstract
Lactobacillus curvatus is a lactic acid bacterium encountered in many different types of fermented food (meat, seafood, vegetables, and cereals). Although this species plays an important role in the preservation of these foods, few attempts have been made to assess its genomic diversity. This study uses comparative analyses of 13 published genomes (complete or draft) to better understand the evolutionary processes acting on the genome of this species. Phylogenomic analysis, based on a coalescent model of evolution, revealed that the 6,742 sites of single nucleotide polymorphism within the L. curvatus core genome delineate two major groups, with lineage 1 represented by the newly sequenced strain FLEC03, and lineage 2 represented by the type-strain DSM20019. The two lineages could also be distinguished by the content of their accessory genome, which sheds light on a long-term evolutionary process of lineage-dependent genetic acquisition and the possibility of population structure. Interestingly, one clade from lineage 2 shared more accessory genes with strains of lineage 1 than with other strains of lineage 2, indicating recent convergence in carbohydrate catabolism. Both lineages had a wide repertoire of accessory genes involved in the fermentation of plant-derived carbohydrates that are released from polymers of α/β-glucans, α/β-fructans, and N-acetylglucosan. Other gene clusters were distributed among strains according to the type of food from which the strains were isolated. These results give new insight into the ecological niches in which L. curvatus may naturally thrive (such as silage or compost heaps) in addition to fermented food.
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Affiliation(s)
- Lucrecia C Terán
- CERELA-CONICET, Centro de Referencia para Lactobacilos, San Miguel de Tucumán, Argentina
| | - Gwendoline Coeuret
- MICALIS Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Raúl Raya
- CERELA-CONICET, Centro de Referencia para Lactobacilos, San Miguel de Tucumán, Argentina
| | - Monique Zagorec
- SECALIM, INRA, Oniris, Université Bretagne Loire, Nantes, France
| | | | - Stéphane Chaillou
- MICALIS Institute, INRA, AgroParisTech, Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
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48
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Juturu V, Wu JC. Microbial production of bacteriocins: Latest research development and applications. Biotechnol Adv 2018; 36:2187-2200. [PMID: 30385277 DOI: 10.1016/j.biotechadv.2018.10.007] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 10/03/2018] [Accepted: 10/15/2018] [Indexed: 12/13/2022]
Abstract
Bacteriocins are low molecular weight peptides secreted by the predator bacterial cells to kill sensitive cells present in the same ecosystem competing for food and other nutrients. Exceptionally few bacteriocins along with their native antibacterial property also exhibit additional anti-viral and anti-fungal properties. Bacteriocins are generally produced by Gm+, Gm- and archaea bacteria. Bacteriocins from Gm + bacteria especially from lactic acid bacteria (LAB) have been thoroughly investigated considering their great biosafety and broad industrial applications. LAB expressing bacteriocins were isolated from fermented milk and milk products, rumen of animals and soil using deferred antagonism assay. Nisin is the only bacteriocin that has got FDA approval for application as a food preservative, which is produced by Lactococcus lactis subsp. Lactis. Its crystal structure explains that its antimicrobial properties are due to the binding of NH2 terminal to lipid II molecule inhibiting the peptidoglycan synthesis and carboxy terminal forming pores in bacterial cell membrane leading to cell lysis. The hinge region connecting NH2 and carboxy terminus has been mutated to generate mutant variants with higher antimicrobial activity. In a 50 ton fermentation of the mutant strain 3807 derived from L. lactis subsp. lactis ATCC 11454, 9,960 IU/mL of nisin was produced. Currently, high purity of nisin (>99%) is very expensive and hardly commercially available. Development of more advanced tools for cost-effective separation and purification of nisin would be commercially attractive. Chemical synthesis and heterologous expression of bacteriocins ended in low yields of pure proteins. At present, bacteriocins are almost solely applied in food industries, but they have a great potential to be used in other fields such as feeds, organic fertilizers, environmental protection and personal care products. The future of bacteriocins is largely dependent on getting FDA approval for use of other bacteriocins in addition to nisin to promote the research and applications.
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Affiliation(s)
- Veeresh Juturu
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island 627833, Singapore
| | - Jin Chuan Wu
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island 627833, Singapore.
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Aarti C, Khusro A, Varghese R, Arasu MV, Agastian P, Al-Dhabi NA, Ilavenil S, Choi KC. In vitro investigation on probiotic, anti-Candida, and antibiofilm properties of Lactobacillus pentosus strain LAP1. Arch Oral Biol 2018; 89:99-106. [PMID: 29499562 DOI: 10.1016/j.archoralbio.2018.02.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 01/25/2018] [Accepted: 02/18/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To investigate the probiotic characteristics, anti-Candida activity, and antibiofilm attributes of Hentak derived Lactobacillus pentosus strain LAP1. DESIGN The probiotic properties of strain LAP1 were depicted by adapting standard protocols. The anti-Candida and antibiofilm properties of isolate were determined using agar well diffusion assay and ELISA reader test, respectively. The time-kill assay was performed using viable colony count assay. Further, the co-aggregation property of strain LAP1 was determined based on standard methodology. RESULTS Strain LAP1 exhibited not only tolerance to acidic pH but also showed resistivity (P ≤ 0.05) to simulated gastric juice exposure. Similarly, the strain was able to tolerate bile salt, showed hyperproteolytic activity, and also depicted susceptibility to most of the antibiotics tested. Auto-aggregation phenomenon (37.5-60%), hydrophobicity nature (42.85%), and survival potentiality of strain LAP1 under freeze-dried condition (9.0 ± 0.01 log CFU/ml) made the isolate a promising probiotic candidate. Cell-free neutralized supernatant (CFNS) of strain LAP1 exhibited potent antifungal activities against C. albicans, C. tropicalis, and C. krusei with arbitrary unit of 150 ± 4.34, 200 ± 5.21, and 130 ± 5.13 AU/ml, respectively and depicted remarkable reduction in the biofilm formation of respective Candida sp. in a concentration dependent manner. Moreover, time-kill assay data provided the growth inhibition of all Candida sp. in a time dependent manner. Additionally, strain LAP1 revealed significant co-aggregate percentage with C. albicans, C. tropicalis, and C. krusei. CONCLUSIONS L. pentosus strain LAP1 exhibited a good probiotic characteristics, potent anti-Candida activity, and significant antibiofilm property that could be undoubtedly recommended for its vast applications not only in food industries but also as biotherapeutic agent against Candida infections in pharmaceutical industries.
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Affiliation(s)
- Chirom Aarti
- Research Department of Plant Biology and Biotechnology, Loyola College, Nungambakkam, Chennai-34, Tamil Nadu, India
| | - Ameer Khusro
- Research Department of Plant Biology and Biotechnology, Loyola College, Nungambakkam, Chennai-34, Tamil Nadu, India
| | - Rakesh Varghese
- Department of Industrial Biotechnology, Bharath University, Selaiyur, Chennai - 73, India
| | - Mariadhas Valan Arasu
- Addiriyah Chair for Environmental Studies, Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
| | - Paul Agastian
- Research Department of Plant Biology and Biotechnology, Loyola College, Nungambakkam, Chennai-34, Tamil Nadu, India
| | - Naïf Abdullah Al-Dhabi
- Addiriyah Chair for Environmental Studies, Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Soundharrajan Ilavenil
- Grassland and Forage Division, National Institute of Animal Science, RDA, Seonghwan-Eup, Cheonan-Si, Chungnam, 330-801, Republic of Korea
| | - Ki Choon Choi
- Grassland and Forage Division, National Institute of Animal Science, RDA, Seonghwan-Eup, Cheonan-Si, Chungnam, 330-801, Republic of Korea
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