Radio frequency roasting promotes the degradation of aflatoxin B1 and achieves better quality of peanuts (Arachis hypogaea L.)
文献类型： 外文期刊
作者： Peng, Zekang 1 ; Liu, Yanhong 1 ; Zhang, Yue 1 ; Ai, Ziping 2 ; Lei, Dengwen 1 ; Xie, Yongkang 3 ; Wei, Lixuan 1 ;
作者机构： 1.China Agr Univ, Coll Engn, POB 209,17 Qinghua Donglu, Beijing 100083, Peoples R China
2.Jiangxi Agr Univ, Coll Engn, Nanchang 330045, Peoples R China
3.Henan Acad Agr Sci, Agr Prod Proc Ctr, Zhengzhou 450002, Peoples R China
关键词： Peanuts; Heating uniformity; Radio frequency roasting; Aflatoxin B 1; Degradation; Microstructure
期刊名称：FOOD CONTROL （ 影响因子：6.0； 五年影响因子：5.8 ）
ISSN： 0956-7135
年卷期： 2024 年 158 卷
页码：
收录情况： SCI
摘要： Peanuts contaminated with aflatoxin B1 (AFB1) possess serious health risks. Radio frequency (RF) roasting was used for decontamination of AFB1 in peanuts. The effects of RF roasting on AFB1 degradation and peanuts quality were investigated under varied electrode gaps (90, 100, 110, and 120 mm), target temperatures (120, 130, 140, and 150 degrees C) and initial moisture contents (10%, 15%, 20%, and 25%). The results showed that corn grit as the assistant material was superior for improving the heating uniformity of peanuts. With increasing target temperature and moisture content, the degradation rate of AFB1 increased significantly from 20.05% to 75.33% and 35.52%-66.09%, respectively, while electrode gap had no significant effect on the degradation of AFB1. Compared with hot air roasting (140 degrees C), RF roasting increased the degradation rate of AFB1 by 18%, with lower acid value and less tissue damage. Fourier transform infrared spectrum and scanning electron micrographs revealed the development of lipid hydrolysis, Maillard reaction and protein denaturation in roasted peanuts. RF roasting under 110-120 mm electrode gap, 140 degrees C target temperature, and 15%-20% initial moisture content was optimal considering both AFB1 degradation and products quality. Overall, RF roasting provides a new insight for the degradation of AFB1 in foods and crops.
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