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Anmin Guo, Yi Zhang, Yutong Ji, Xinhua Chen, Wei Zhang, Xuemei Liu, Dongdong Yan, Wensheng Fang, Yuan Li, Aocheng Cao, Qiuxia Wang *. The potential for reducing aflatoxin B1 contamination of stored peanuts by soil disinfection. Journal of Hazardous Materials, 2024, https:// doi: 10.1016/j.jhazmat.20

文章来源:        点击数: 次      发布时间:2024-07-02

Abstract

Aflatoxins from the fungus  Aspergillus flavus ( A. flavus ) that contaminate stored peanuts is a major hazard to human health worldwide. Reducing  A. flavus in soil can decrease the risk of aflatoxins in stored peanuts. In this experiment, we determined whether peanuts grown on soil fumigated with dazomet (DZ), metham sodium (MS), allyl isothiocyanate (AITC), chloropicrin (PIC) or dimethyl disulfide (DMDS) would reduce of the quantity of  A. flavus and its toxin's presence. The results of bioassays and field tests showed that PIC was the most effective fumigant for preventing and controlling  A. flavus , followed by MS. PIC and MS applied to the soil for 14 d resulted in LD50 values against  A. flavus of 3.558 and 4.893 mg kg-1, respectively, leading to almost 100% and 98.82% effectiveness of  A. flavus , respectively. Peanuts harvested from fumigated soil and then stored for 60 d resulted in undetectable levels of aflatoxin B1 (AFB1) compared to unfumigated soil that contained 0.64 ug kg-1 of AFB1, which suggested that soil fumigation can reduce the probability of aflatoxin contamination during peanut storage and showed the potential to increase the safety of peanuts consumed by humans. Further research is planned to determine the practical value of our research in commercial practice.


Journal of Hazardous Materials

IF=12.2

https://pubmed.ncbi.nlm.nih.gov/38479137/


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