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Iranian Journal of Biotechnology، جلد ۲۱، شماره ۲، صفحات ۹۵-۱۰۴
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عنوان انگلیسی Isolation, Identification, and Characterization of the Native Yeast Strains from Homemade Cheese to Assess their Eliminating Impact on the Aflatoxin B1 and M1 of the Simulated Gastrointestinal Fluid
چکیده انگلیسی مقاله Background: The occurrence of aflatoxins in food products is a silent threat to human health worldwide. A range of strategies has been introduced to address the bioavailability of aflatoxins, which are considered microbial tools to provide a low-cost and promising approach.
Objectives: The present study focused on the separation of yeast strains from the homemade cheese rind layer to investigate the ability of native yeasts to eliminate AB1 and AM1 from simulated gastrointestinal fluids.
Material and Methods: Homemade cheese samples were prepared from different locations in Tehran provinces and yeast strains were isolated and identified through the biochemical methods and molecular analysis of internal transcribed spacer and D1/D2 domain of 26S rDNA regions. Isolated strains were screened using simulated gastrointestinal fluids, and the ability of yeast strains to absorb aflatoxin was evaluated.
Results: Out of 13 strains, 7 yeast strains were not affected by 5 ppm AFM1 while 11 strains did not show any significant response to 5 mg.L-1 (ppm) of AFB1. On the other hand, 5 strains were able to successfully tolerate 20 ppm AFB1. Candidate yeasts showed different abilities to remove aflatoxins B1 and M1. In addition, C. lusitaniae, G. geotrichum, G. candidum, and C. sanyaensis exhibited a significant ability to detoxify aflatoxins from the gastrointestinal fluid, respectively.
Conclusion: Our data suggest that yeast communities with essential effects on the quality of homemade cheese appear to be precise candidates for the potential elimination of aflatoxins from the gastrointestinal fluid.
کلیدواژه‌های انگلیسی مقاله AB1,Aflatoxin elimination,AM1,Gastrointestinal fluid,Homemade cheese,Yeast
نویسندگان مقاله Ghazal Yahyapour |
Department of food hygiene, science and research branch, Islamic Azad university, Tehran, Iran

Seyed Amirali Anvar |
Department of food hygiene, science and research branch, Islamic Azad university, Tehran, Iran

Maryam Ataee |
Department of food hygiene, science and research branch, Islamic Azad university, Tehran, Iran

Hamed Ahari Hamed |
Department of food science and technology, science and research branch, Islamic Azad university, Tehran, Iran

Hossein Askary |
Department of Plant Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.

نشانی اینترنتی https://www.ijbiotech.com/article_167570_4a8b79170692ed57a4bff829e7171608.pdf
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