Isomerization and bioaccessibility of cypermethrin and fenpropathrin in Pacific oyster during simulated digestion as influenced by domestic cooking methods  

作　　者：Hangtao Xie Yadan Jiao Tian Li Tuo Zhang Yanyan Zheng Yongkang Luo Yuqing Tan Chune Liu Hui Hong 

机构地区：[1]Beijing Laboratory for Food Quality and Safety,College of Food Science and Nutritional Engineering,China Agricultural University,Beijing 100083,China [2]Institute of Yantai,China Agricultural University,Yantai 264670,Shandong,China [3]Center of Food Colloids and Delivery for Functionality,College of Food Science and Nutritional Engineering,China Agricultural University,Beijing 100083,China [4]Institute of Agri-food Processing and Nutrition,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China

出　　处：《Food Innovation and Advances》2023年第1期9-17,共9页食品创新与进展（英文）

基　　金：supported by the National Key R&D Program of China(2019YFD0901704).

摘　　要：Pyrethroids can be ingested by humans through eating contaminated oysters,which is potentially harmful to health.This study aimed to investigate the effects of raw,steaming,and roasting on cypermethrin(CP)and fenpropathrin(FP)in oysters during simulated digestion.Results showed that the amount of released CP and FP was different from raw(CP:0.617μg·g−1,FP:0.266μg·g−1),steaming(CP:0.498μg·g−1,FP:0.660μg·g−1),and roasting(CP:1.186μg·g−1,FP:0.588μg·g−1)at the end of simulated digestion.The share of cis-CP and low-efficiency CP increased significantly(p<0.05),and the share of high-efficiency trans-CP did not maintain a high level for a long time during simulated digestion.The fluorimetric titration and isothermal titration calorimetry confirmed that CP and FP could spontaneously interact with oyster actin,and CP could bind with oyster actin more tightly than FP.This study reveals that cooking methods affect the binding capacity of CP and FP to oyster tissues and influence the changes of CP and FP in oysters during digestion.Furthermore,the current study provides a reference for assessing the potential harm of pyrethroids in oysters to consumers.

关 键 词：fir cooking TITRATION 

分 类 号：TS201[轻工技术与工程—食品科学]