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Ibrahim RA, Abd El-Salam BA, Alsulami T, Ali HS, Hoppe K, Badr AN. Neoteric Biofilms Applied to Enhance the Safety Characteristics of Ras Cheese during Ripening. Foods 2023; 12:3548. [PMID: 37835201 PMCID: PMC10572299 DOI: 10.3390/foods12193548] [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: 08/21/2023] [Revised: 09/15/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
The milk's natural flora, or the starter, can preserve cheesemaking and allow for microbial competition. This investigation aimed to improve cheese safety and assess its characteristics using probiotic cell pellets (LCP) or cell-free extracts (CFS). Cheese samples were collected from different areas to investigate the current contamination situation. Six CFSs of probiotics were assessed as antifungal against toxigenic fungi using liquid and solid media and their aflatoxin reduction impact. The most effective CFS was chosen for cheese coating in nanoemulsion. Coated cheese with CFS, LCP, and LCP-CFS was assessed against control for changes in chemical composition, ripening indications, rheological properties, and microbiology. Results showed significant contamination levels in the collected samples, and toxic fungi were present. Lactobacillus rhamnosus CFS has aflatoxins reducibility in liquid media. During cheese ripening, uncoated cheese showed higher fat, protein, salt content, soluble nitrogen, total volatile fatty acids, tyrosine, and tryptophan contents than coated samples, except for LCP-coating treatment. Cheese rheology indicated that coating treatments had the lowest hardness, cohesiveness, gumminess, chewiness, and springiness compared to uncoated cheese. Uncoated cheese had the highest yeast and mold counts compared to the treated ones. The LCP-CFS-coated cheese showed no Aspergillus cells for up to 40 days. Uncoated Ras cheese recorded slightly lower flavor, body, texture, and appearance scores than coated cheeses. In conclusion, coating cheese with L. rhamnosus nanoemulsion has antifungal and antiaflatoxigenic properties, even for LCP, CFS, and CFS-LCP, which could extend cheese shelf life.
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Affiliation(s)
- Rasha A. Ibrahim
- Dairy Research Department, Food Technology Research Institute, Agricultural Research Centre, Giza 12619, Egypt; (R.A.I.)
| | - Baraka A. Abd El-Salam
- Dairy Research Department, Food Technology Research Institute, Agricultural Research Centre, Giza 12619, Egypt; (R.A.I.)
| | - Tawfiq Alsulami
- Food Science & Nutrition Department, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hatem S. Ali
- Food Technology Department, National Research Centre, Cairo 12622, Egypt;
| | - Karolina Hoppe
- Chemistry Department, Poznan University of Life Science, ul. Wojska Polskiego 75, 60-625 Poznan, Poland
| | - Ahmed Noah Badr
- Food Toxicology and Contaminants Department, National Research Centre, Cairo 12622, Egypt
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2
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Marlida Y, Nurmiati N, Husmaini H, Huda N, Anggraini L, Ardani LR. The potential of lactic acid bacteria isolated from ikan budu (fermented fish) to inhibit the growth of pathogenic fungi and detoxify aflatoxin B1. Vet World 2023; 16:1373-1379. [PMID: 37621548 PMCID: PMC10446719 DOI: 10.14202/vetworld.2023.1373-1379] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 05/23/2023] [Indexed: 08/26/2023] Open
Abstract
Background and Aim Market demand for safe feed and food supply and consumer preferences for safe and healthy products are increasing. Control measures to counter threats to the feed supply need to be implemented as early as possible to prevent economic losses. Mycotoxins produced by certain groups of fungi are a problem that can disrupt the feed supply or pose a threat to the health of animals and humans. Biological control to detoxify contaminated feed ingredients can be carried out on a large scale economically. For example, lactic acid bacteria (LAB) can act as biological agents for eliminating mycotoxins. This study aimed to clarify the value of screening LAB to inhibit Aspergillus flavus growth and detoxify aflatoxin B1 (AFB1). Materials and Methods In this study, using a completely randomized design with three replications, five isolates of LAB (LA.1, LA.6, LA.8, LA.12, and LA.22) along with their supernatants were tested qualitatively and quantitatively for their ability to counter mycotoxins using A. flavus and corn kernels. The isolates with the best activity were identified by sequencing 16S rDNA. Results The results showed that the five LAB isolates can inhibit the growth of A. flavus and detoxify AFB1. Among these isolates, LA.12 showed the best performance, followed by LA.22, LA.8, LA.6, and then LA.1. The sequencing results confirmed that LA.12 was Lactobacillus harbinensis strain 487. Conclusion All of the isolates in this study have the potential as biological agents for detoxifying AFB1, with isolate LA.12 appearing to be the most promising biodetoxification agent for feed (AFB1 in corn) based on its ability to inhibit pathogenic fungi.
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Affiliation(s)
- Yetti Marlida
- Department of Animal Nutrition, Faculty of Animal Science, Andalas University, Limau Manis Campus, Padang 25163, West Sumatra, Indonesia
| | - Nurmiati Nurmiati
- Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University, Padang City, West Sumatra 25175, Indonesia
| | - Husmaini Husmaini
- Department of Animal Production, Faculty of Animal Science, Andalas University, Limau Manis Campus, Padang 25163, West Sumatra, Indonesia
| | - Nurul Huda
- Faculty of Sustainable Agriculture, Universiti Malaysia Sabah, 90509, Sandakan, Sabah, Malaysia
| | - Lili Anggraini
- Department of Animal Nutrition, Faculty of Animal Science, Andalas University, Limau Manis Campus, Padang 25163, West Sumatra, Indonesia
| | - Laily Rinda Ardani
- Graduate Program of Animal Science, Andalas University, Limau Manis Campus, Padang 25163, West Sumatra, Indonesia
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3
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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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4
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mohammadi R, Abbaszadeh S, Sharifzadeh A, Sepandi M, Taghdir M, Youseftabar Miri N, Parastouei K. In vitro activity of encapsulated lactic acid bacteria on aflatoxin production and growth of Aspergillus Spp. Food Sci Nutr 2021; 9:1282-1288. [PMID: 33747444 PMCID: PMC7958533 DOI: 10.1002/fsn3.2015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 11/23/2022] Open
Abstract
This study aimed to investigate the potential ability of simultaneously used L. acidophilus(LA-5), L.rhamnosus(LGG), and L.casei(LC-01) in encapsulated (E) and nonencapsulated (NE) forms in mycelial growth of Aspergillus spp and aflatoxin production by A. flavus. In order to assess the zone of fungal growth inhibition by E and NE lactic acid bacteria, the agar well diffusion method was applied. Quantification of aflatoxin was performed using a high-performance liquid chromatography technique. Lactic acid bacteria exhibited high antifungal activity and significantly reduced AFB1, AFB2, AFG1, and AFG2 production in both E and NE forms compared to the control group. The percentage of reduction in total AFs production in treated samples with E and NE lactic acid bacteria was 94.1% and 95.5%, respectively. These results suggested that simultaneously used lactic acid bacteria in E and NE forms can prevent growth and decrease aflatoxin production of toxigenic aspergilla.
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Affiliation(s)
- Rouhollah mohammadi
- Health Research CenterLife style instituteBaqiyatallah University of Medical SciencesTehranIran
| | - Sepideh Abbaszadeh
- Health Research CenterLife style instituteBaqiyatallah University of Medical SciencesTehranIran
- Department of Nutrition and Food HygieneFaculty of HealthBaqiyatallah University of Medical SciencesTehranIran
| | - Aghil Sharifzadeh
- Department of Microbiology and Immunology, Faculty of Veterinary MedicineUniversity of TehranTehranIran
| | - Mojtaba Sepandi
- Health Research CenterLife style instituteBaqiyatallah University of Medical SciencesTehranIran
| | - Maryam Taghdir
- Health Research CenterLife style instituteBaqiyatallah University of Medical SciencesTehranIran
| | | | - Karim Parastouei
- Health Research CenterLife style instituteBaqiyatallah University of Medical SciencesTehranIran
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5
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Youssef NH, Al-Huqail AA, Ali HM, Abdelsalam NR, Sabra MA. The role of Serendipita indica and Lactobacilli mixtures on mitigating mycotoxins and heavy metals' risks of contaminated sewage sludge and its composts. Sci Rep 2020; 10:15159. [PMID: 32938964 PMCID: PMC7495000 DOI: 10.1038/s41598-020-71917-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/21/2020] [Indexed: 12/17/2022] Open
Abstract
Accumulation of the Municipal Sewage Sludge (MSS) is considered as one of the most harmful renewable ecological and human health problems. MSS is a renewable resource that could be used as a soil organic amendment. This study aims to reduce the Heavy Metals (HMs) from the sludge content and sludge compost. Furthermore, this study is considered the first to assess the mycotoxins content in sludge and sludge compost via a new biological treatment using the fungus Serendipita indica or a mixture of lactic acid bacteria, thus providing safer nutrients for the soil amendment for a longer time and preserving human health. The HMs and mycotoxins were determined. The results exhibited that the biotic remediation of bio-solid waste and sewage sludge compost succeeded; a new bio-treated compost with a very low content of heavy metals and almost mycotoxins-free contents was availed. Also, the results indicated that the Lactobacilli mixture realized the best results in reducing heavy metals contents and mycotoxins. Afterward, S. indica. biotic remediation of bio-solid waste and sewage sludge compost minimized the health risk hazards affecting the human food chain, allowing for the different uses of sludge to be safer for the environment.
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Affiliation(s)
- Nesrine H Youssef
- Regional Center for Food and Feed, Agricultural Research Center, Alexandria, Egypt.
| | - Asma A Al-Huqail
- Chair of Climate Change, Environmental Development and Vegetation Cover, Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Hayssam M Ali
- Chair of Climate Change, Environmental Development and Vegetation Cover, Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.,Timber Trees Research Department, Sabahia Horticulture Research Station, Horticulture Research Institute, Agriculture Research Center, Alexandria, 21526, Egypt
| | - Nader R Abdelsalam
- Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, 21531, Egypt.
| | - Mayada A Sabra
- Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, 21531, Egypt
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6
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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: 134] [Impact Index Per Article: 26.8] [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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7
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Azeem N, Nawaz M, Anjum AA, Saeed S, Sana S, Mustafa A, Yousuf MR. Activity and Anti-Aflatoxigenic Effect of Indigenously Characterized Probiotic Lactobacilli against Aspergillus flavus-A Common Poultry Feed Contaminant. Animals (Basel) 2019; 9:E166. [PMID: 30991667 PMCID: PMC6523852 DOI: 10.3390/ani9040166] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 03/28/2019] [Accepted: 04/11/2019] [Indexed: 11/16/2022] Open
Abstract
Aflatoxin contamination in human food and animal feed is a threat to public safety. Aflatoxin B1 (AFB1) can be especially damaging to poultry production and consequently economic development of Pakistan. The present study assessed the in vitro binding of AFB1 by indigenously characterized probiotic lactobacilli. Six isolates (Lactobacillus gallinarum PDP 10, Lactobacillus reuetri FYP 38, Lactobacillus fermentum PDP 24, Lactobacillus gallinarum PL 53, Lactobacillus paracasei PL 120, and Lactobacillus gallinarum PL 149) were tested for activity against toxigenic Aspergillus flavus W-7.1 (AFB1 producer) by well diffusion assay. Only three isolates (PL 53, PL 120, and PL 149) had activity against A. flavus W-7.1. The ameliorative effect of these probiotic isolates on AFB1 production was determined by co-culturing fungus with lactobacilli for 12 days, followed by aflatoxin quantification by high-performance liquid chromatography. In vitro AFB1 binding capacities of lactobacilli were determined by their incubation with a standard amount of AFB1 in phosphate buffer saline at 37 °C for 2 h. AFB1 binding capacities of isolates ranged from 28-65%. Four isolates (PDP 10, PDP 24, PL 120, and PL 149) also ceased aflatoxin production completely, whereas PL 53 showed 55% reduction in AFB1 production as compared to control. The present study demonstrated Lactobacillus gallinarum PL 149 to be an effective candidate AFB1 binding agent against Aspergillus flavus. These findings further support the binding ability of lactic acid bacteria for dietary contaminants.
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Affiliation(s)
- Nimra Azeem
- Department of Microbiology, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Muhammad Nawaz
- Department of Microbiology, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Aftab Ahmad Anjum
- Department of Microbiology, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Shagufta Saeed
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Saba Sana
- Department of Microbiology, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Amina Mustafa
- Department of Microbiology, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
| | - Muhammad Rizwan Yousuf
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan.
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8
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Chen Y, Li R, Chang Q, Dong Z, Yang H, Xu C. Lactobacillus bulgaricus or Lactobacillus rhamnosus Suppresses NF-κB Signaling Pathway and Protects against AFB₁-Induced Hepatitis: A Novel Potential Preventive Strategy for Aflatoxicosis? Toxins (Basel) 2019; 11:E17. [PMID: 30621122 PMCID: PMC6356522 DOI: 10.3390/toxins11010017] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/22/2018] [Accepted: 12/24/2018] [Indexed: 12/11/2022] Open
Abstract
Aflatoxin B₁ (AFB₁), a mycotoxin found in food and feed, is immunotoxic to animals and poses significant threat to the food industry and animal production. The primary target of AFB₁ is the liver. To overcome aflatoxin toxicity, probiotic-mediated detoxification has been proposed. In the present study, to investigate the protective effects and molecular mechanisms of Lactobacillus bulgaricus or Lactobacillus rhamnosus against liver inflammatory responses to AFB₁, mice were administered with AFB₁ (300 μg/kg) and/or Lactobacillus intragastrically for 8 weeks. AML12 cells were cultured and treated with AFB₁, BAY 11-7082 (an NF-κB inhibitor), and different concentrations of L. bulgaricus or L. rhamnosus. The body weight, liver index, histopathological changes, biochemical indices, cytokines, cytotoxicity, and activation of the NF-κB signaling pathway were measured. AFB₁ exposure caused changes in liver histopathology and biochemical functions, altered inflammatory response, and activated the NF-κB pathway. Supplementation of L. bulgaricus or L. rhamnosus significantly prevented AFB₁-induced liver injury and alleviated histopathological changes and inflammatory response by decreasing NF-κB p65 expression. The results of in vitro experiments revealed that L.rhamnosus evidently protected against AFB₁-induced inflammatory response and decreased NF-κB p65 expression when compared with L. bulgaricus. These findings indicated that AFB₁ exposure can cause inflammatory response by inducing hepatic injury, and supplementation of L. bulgaricus or L. rhamnosus can produce significant protective effect against AFB₁-induced liver damage and inflammatory response by regulating the activation of the NF-κB signaling pathway.
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Affiliation(s)
- Yuanyuan Chen
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing High-Tech Industrial Development Zone, Daqing 163319, China.
| | - Ruirui Li
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing High-Tech Industrial Development Zone, Daqing 163319, China.
| | - Qiaocheng Chang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing High-Tech Industrial Development Zone, Daqing 163319, China.
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Fengtai District, Beijing 100071, China.
| | - Zhihao Dong
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing High-Tech Industrial Development Zone, Daqing 163319, China.
| | - Huanmin Yang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing High-Tech Industrial Development Zone, Daqing 163319, China.
| | - Chuang Xu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing High-Tech Industrial Development Zone, Daqing 163319, China.
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9
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Lactobacillus plantarum LUHS135 and paracasei LUHS244 as functional starter cultures for the food fermentation industry: Characterisation, mycotoxin-reducing properties, optimisation of biomass growth and sustainable encapsulation by using dairy by-products. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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10
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Jafari S, Aghaei SS, Afifi-Sabet H, Shams-Ghahfarokhi M, Jahanshiri Z, Gholami-Shabani M, Shafiei-Darabi S, Razzaghi-Abyaneh M. Exploration, antifungal and antiaflatoxigenic activity of halophilic bacteria communities from saline soils of Howze-Soltan playa in Iran. Extremophiles 2017; 22:87-98. [PMID: 29134389 DOI: 10.1007/s00792-017-0979-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 11/03/2017] [Indexed: 11/29/2022]
Abstract
In the present study, halophilic bacteria communities were explored in saline soils of Howze-Soltan playa in Iran with special attention to their biological activity against an aflatoxigenic Aspergillus parasiticus NRRL 2999. Halophilic bacteria were isolated from a total of 20 saline soils using specific culture media and identified by 16S rRNA sequencing in neighbor-joining tree analysis. Antifungal and antiaflatoxigenic activities of the bacteria were screened by a nor-mutant A. parasiticus NRRL 2999 using visual agar plate assay and confirmed by high-performance liquid chromatography. Among a total of 177 halophilic bacteria belonging to 11 genera, 121 isolates (68.3%) inhibited A. parasiticus growth and/or aflatoxin production. The most potent inhibitory bacteria of the genera Bacillus, Paenibacillus and Staphylococcus were distributed in three main phylogenetic clusters as evidenced by 16S rRNA sequence analysis. A. parasiticus growth was inhibited by 0.7-92.7%, while AFB1 and AFG1 productions were suppressed by 15.1-98.9 and 57.0-99.6%, respectively. Taken together, halophilic bacteria identified in this study may be considered as potential sources of novel bioactive metabolites as well as promising candidates to develop new biocontrol agents for managing toxigenic fungi growth and subsequent aflatoxin contamination of food and feed in practice.
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Affiliation(s)
- Samaneh Jafari
- Department of Mycology, Pasteur Institute of Iran, Tehran, 13164, Iran.,Department of Microbiology, Islamic Azad University, Qom Branch, Iran
| | | | | | | | - Zahra Jahanshiri
- Department of Mycology, Pasteur Institute of Iran, Tehran, 13164, Iran
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11
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Guimarães A, Santiago A, Teixeira JA, Venâncio A, Abrunhosa L. Anti-aflatoxigenic effect of organic acids produced by Lactobacillus plantarum. Int J Food Microbiol 2017; 264:31-38. [PMID: 29107194 DOI: 10.1016/j.ijfoodmicro.2017.10.025] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 09/07/2017] [Accepted: 10/20/2017] [Indexed: 12/19/2022]
Abstract
Lactic acid bacteria (LAB), which are commonly used in the production of fermented foods, have been gaining attention for their antifungal and antimycotoxin properties. In this work, the strain Lactobacillus plantarum UM55 was selected among other LAB for inhibiting the growth of Aspergillus flavus. Further, it is shown that cell-free supernatant (CFS) of this strain inhibits the production of aflatoxins (AFLs) by 91%. This inhibition was dependent on CFS pH, increased with increasing concentrations of CFS, and was independent of fungal growth, which was inhibited only by 32%. CFS was also effective in inhibiting the growth and AFLs production in A. parasiticus, A. arachidicola, A. nomius and A. minisclerotigenes. Further, L. plantarum UM55 CFS was analysed for the presence of organic acids and the main differences compared to controls were found in the levels of lactic acid, phenyllactic acid (PLA), hydroxyphenyllactic acid (OH-PLA), and indole lactic acid (ILA). These compounds were individually tested against A. flavus, with all of the compounds showing an inhibiting effect on fungal growth and AFLs production. PLA showed the stronger effects, and the obtained IC90 for the inhibition of growth and AFLs was of 11.9 and 0.87mg/mL, respectively. AFLs IC90 for ILA, OH-PLA and lactic acid were of 1.47, 1.80, and 3.92mg/mL, respectively. The antiaflatoxigenic properties of LAB depend on strain's capability to produce lactic acid, PLA, OH-PLA and ILA.
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Affiliation(s)
- Ana Guimarães
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Ana Santiago
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - José A Teixeira
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Armando Venâncio
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Luís Abrunhosa
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
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Huang L, Duan C, Zhao Y, Gao L, Niu C, Xu J, Li S. Reduction of Aflatoxin B1 Toxicity by Lactobacillus plantarum C88: A Potential Probiotic Strain Isolated from Chinese Traditional Fermented Food "Tofu". PLoS One 2017; 12:e0170109. [PMID: 28129335 PMCID: PMC5271326 DOI: 10.1371/journal.pone.0170109] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 12/29/2016] [Indexed: 01/03/2023] Open
Abstract
In this study, we investigated the potential of Lactobacillus plantarum isolated from Chinese traditional fermented foods to reduce the toxicity of aflatoxin B1 (AFB1), and its subsequent detoxification mechanism. Among all the investigated L. plantarum strains, L. plantarum C88 showed the strongest AFB1 binding capacity in vitro, and was orally administered to mice with liver oxidative damage induced by AFB1. In the therapy groups, the mice that received L. plantarum C88, especially heat-killed L. plantarum C88, after a single dose of AFB1 exposure, showed an increase in unabsorbed AFB1 in the feces. Moreover, the effects of L. plantarum C88 on the enzymes and non-enzymes antioxidant abilities in serum and liver, histological alterations of liver were assayed. The results indicated that compared to the control group, L. plantarum C88 alone administration induced significant increase of antioxidant capacity, but did not induce any significant changes in the histological picture. Compared to the mice that received AFB1 only, L. plantarum C88 treatment could weaken oxidative stress by enhancing the activity of antioxidant enzymes and elevating the expression of Glutathione S-transferase (GST) A3 through Nuclear factor erythroid (derived factor 2) related factor 2 (Nrf2) pathway. Furthermore, cytochrome P450 (CYP 450) 1A2 and CYP 3A4 expression was inhibited by L. plantarum C88, and urinary aflatoxin B1-N7-guanine (AFB-N7-guanine), a AFB1 metabolite formed by CYP 1A2 and CYP 3A4, was significantly reduced by the presence of viable L. plantarum C88. Meanwhile, the significant improvements were showed in histological pictures of the liver tissues in mice orally administered with viable L. plantarum C88. Collectively, L. plantarum C88 may alleviate AFB1 toxicity by increasing fecal AFB1 excretion, reversing deficits in antioxidant defense systems and regulating the metabolism of AFB1.
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Affiliation(s)
- Li Huang
- School of Environment, Northeast Normal University, Changchun, Jilin, The People's Republic of China
| | - Cuicui Duan
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, Jilin, The People's Republic of China
| | - Yujuan Zhao
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, Jilin, The People's Republic of China
| | - Lei Gao
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, Jilin, The People's Republic of China
| | - Chunhua Niu
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, Jilin, The People's Republic of China
| | - Jingbo Xu
- School of Environment, Northeast Normal University, Changchun, Jilin, The People's Republic of China
- * E-mail: (JX); (SL)
| | - Shengyu Li
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, Jilin, The People's Republic of China
- * E-mail: (JX); (SL)
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NATEGHI F, NOORBAKHSH F, LOTFALI E, REZAIE S. Investigation the Effects of Lactobacillus acidophilus and Lactobacillus casei on aflR Gene expression in Aspergillus parasiticus by Real Time-PCR. IRANIAN JOURNAL OF PUBLIC HEALTH 2016; 45:781-6. [PMID: 27648422 PMCID: PMC5026834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND The effect of probiotic bacteria (Lactobacillus acidophilus and L. casei) as safe organisms was examined on fungal growth and aflatoxin gene regulation in Aspergillus parasiticus. METHODS The fungus was cultured in presence of two different concentrations of L. acidophilus and L. casei in MRS broth medium. Mycelia dry weight is indicated as criteria to evaluate fungal growth. Besides, investigation of aflR gene expression by Real Time PCR was performed for analysis of gene regulatory effects in aflatoxin biosynthetic pathway. RESULTS Both Lactobacillus strongly inhibited fungal growth in the concentrations of 1. 5×10(2), [Formula: see text] . Expression analysis of aflatoxin genes pathway by real time PCR showed inhibitory effect of L. acidophilus and L. casei on expression of aflR gene. The gene expression revealed to be reduced at the approximate rates of 99. 7% and 98% respectively by L. acidopholus and L. casei in concentrations of [Formula: see text] and more. CONCLUSION L. acidophilus and L. casei may be used successfully as suitable candidates in controlling of A. parasiticus growth on food and feed as well as reducing of aflatoxin contamination.
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Affiliation(s)
- Farzaneh NATEGHI
- Division of Microbiology, Dept. of Biology, Islamic Azad University, Varamin-Pishva Branch, Varamin, Iran
| | - Fatemeh NOORBAKHSH
- Division of Microbiology, Dept. of Biology, Islamic Azad University, Varamin-Pishva Branch, Varamin, Iran,Corresponding Author:
| | - Ensieh LOTFALI
- Division of Molecular Biology, Dept. of Medical Mycology & Parasitology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sassan REZAIE
- Division of Molecular Biology, Dept. of Medical Mycology & Parasitology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Lim Y, Ryu JS, Shi S, Noh W, Kim E, Le QV, Lee HS, Ro HS. Isolation of Bacteria Associated with the King Oyster Mushroom, Pleurotus eryngii. MYCOBIOLOGY 2008; 36:13-18. [PMID: 23997601 PMCID: PMC3755245 DOI: 10.4489/myco.2008.36.1.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Accepted: 03/06/2008] [Indexed: 06/02/2023]
Abstract
Eight distinct bacteria were isolated form diseased mycelia of the edible mushroom, Pleurotus eryngii. 16S rDNA sequence analysis showed that the isolates belonged to a variety of bacterial genera including Bacillus (LBS5), Enterobacter (LBS1), Sphingomonas (LBS8 and LBS10), Staphylococcus (LBS3, LBS4 and LBS9) and Moraxella (LBS6). Among them, 4 bacterial isolates including LBS1, LBS4, LBS5, and LBS9 evidenced growth inhibitory activity on the mushroom mycelia. The inhibitory activity on the growth of the mushroom fruiting bodies was evaluated by the treatment of the bacterial culture broth or the heat-treated cell-free supernatant of the broth. The treatment of the culture broths or the cell-free supernatants of LBS4 or LBS9 completely inhibited the formation of the fruiting body, thereby suggesting that the inhibitory agent is a heat-stable compound. In the case of LBS5, only the bacterial cell-containing culture broth was capable of inhibiting the formation of the fruiting body, whereas the cell-free supernatant did not, which suggests that an inhibitory agent generated by LBS5 is a protein or a heat-labile chemical compound, potentially a fungal cell wall-degrading enzyme. The culture broth of LBS1 was not inhibitory. However, its cell-free supernatant was capable of inhibiting the formation of fruiting bodies. This indicates that LBS1 may produce an inhibitory heat-stable chemical compound which is readily degraded by its own secreted enzyme.
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Affiliation(s)
- Yunjung Lim
- Deparment of Microbiology and Research Institute of Life Science, Gyeongsang National University, 900 Gajwa-Dong, Chinju 660-701, Korea
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