Biodegradation of Aflatoxin B1 in Peanut Oil by an Amphipathic Laccase-Inorganic Hybrid Nanoflower.
J Agric Food Chem
; 71(8): 3876-3884, 2023 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-36791339
ABSTRACT
Aflatoxin B1 (AFB1) contamination is an important issue for the safety of edible oils. Enzymatic degradation is a promising approach for removing mycotoxins in a specific, efficient, and green manner. However, enzymatic degradation of mycotoxins in edible oil is challenging as a result of the low activity and stability of the enzyme. Herein, a novel strategy was proposed to degrade AFB1 in peanut oil using an amphipathic laccase-inorganic hybrid nanoflower (Lac NF-P) as a biocatalyst. Owing to the improved microenvironment of the enzymatic reaction and the enhanced stability of the enzyme structure, the proposed amphipathic Lac NF-P showed 134- and 3.2-fold increases in the degradation efficiency of AFB1 in comparison to laccase and Lac NF, respectively. AFB1 was removed to less than 0.96 µg/kg within 3 h when using Lac NF-P as a catalyst in the peanut oil, with the AFB1 concentration ranging from 50 to 150 µg/kg. Moreover, the quality of the peanut oil had no obvious change, and no leakage of catalyst was observed after the treatment of Lac NF-P. In other words, our study may open an avenue for the development of a novel biocatalyst for the detoxification of mycotoxins in edible oils.
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Base de dados:
MEDLINE
Assunto principal:
Aflatoxina B1
/
Lacase
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article