Screening and Identification of Aflatoxin B<sub>1</sub> Degradation Strains and Preliminary Exploration of Effective Degradation Components

ZHANG Yushen; TONG Wenjun; CHEN Xiaolu; LEI Yao; ZHOU Yunjing; DU Lihui

doi:10.13386/j.issn1002-0306.2022110090

Issue 9

May. 2023

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JOURNAL OF MECHANICAL ENGINEERING > 2023 > 44(9): 177-182.

ZHANG Yushen, TONG Wenjun, CHEN Xiaolu, et al. Screening and Identification of Aflatoxin B1 Degradation Strains and Preliminary Exploration of Effective Degradation Components[J]. Science and Technology of Food Industry, 2023, 44(9): 177−182. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2022110090

Citation:

ZHANG Yushen, TONG Wenjun, CHEN Xiaolu, et al. Screening and Identification of Aflatoxin B₁ Degradation Strains and Preliminary Exploration of Effective Degradation Components[J]. Science and Technology of Food Industry, 2023, 44(9): 177−182. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2022110090

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Screening and Identification of Aflatoxin B₁ Degradation Strains and Preliminary Exploration of Effective Degradation Components

doi: 10.13386/j.issn1002-0306.2022110090

College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210023, China

Received Date: 09 Nov 2022
Issue Publish Date: 01 May 2023

Abstract

Abstract

Aflatoxin B₁ (AFB₁) is a type of fungaltoxin with strong toxicity and strong carcinogenicity. To screen degrading bacteria of AFB₁, co-culture of fungi strains which were stored in laboratory and AFB₁ was carried out and the strains with the highest degradation rate were chosen. Species of the chosen strains were determined through morphology and ITS rDNA analysis. After separation of different components (bacterial suspension, thalli, spore suspension and fermentation liquor) in strains, the effective components for AFB₁ degradation were explored, and the effective components thalli was broken for further investigation. Results showed that the AFB₁ degrading rates by Penicillium herquei MD1 bacterial suspension cultured by 72 h and the unbroken thalli were 98.15% and 28.20%, respectively. The degradation of AFB₁ was better after the fragmentation of the thalli, and the degradation rate of AFB₁ was 55.40% after 24 h of incubation. Therefore, the active components in MD1 bacterial suspension and thalli can degrade AFB₁ effectively. The screened MD1 expands the degrading bacterial library of AFB₁ and provide some references to biological degradation of AFB₁.
- aflatoxin B₁,
- Penicillium herquei,
- biodegradation,
- bioactive ingredients,
- identification

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References(29)

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Screening and Identification of Aflatoxin B₁ Degradation Strains and Preliminary Exploration of Effective Degradation Components

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Screening and Identification of Aflatoxin B₁ Degradation Strains and Preliminary Exploration of Effective Degradation Components