Prediction, evaluation, confirmation, and elimination of matrix effects for lateral flow test strip based rapid and on-site detection of aflatoxin B1 in tea soups

被引：51

作者：

Chen, Wei ^{[1
]}

Cai, Fen ^{[1
]}

Wu, Qian ^{[1
]}

Wu, Yuhan ^{[1
]}

Yao, Bangben ^{[1
,2
]}

Xu, Jianguo ^{[1
]}

机构：

[1] Hefei Univ Technol, Engn Res Ctr Bioproc, Sch Food & Biol Engn, MOE, Hefei 230009, Peoples R China

[2] Anhui Prov Inst Prod Qual Supervis & Inspect, Hefei 230051, Peoples R China

来源：

FOOD CHEMISTRY | 2020年 / 328卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Tea soup; Mycotoxin; Matrix effect; Aflatoxin B1 (AFB1); Gold nanoparticles (GNPs); Lateral flow test strip (LFTS); MYCOTOXINS; IMMUNOASSAY; EXTRACTION; BIOSENSOR; MILK;

D O I：

10.1016/j.foodchem.2020.127081

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Mycotoxin contaminations of tea have been considered serious problems. The presence of interfering substances presents enormous challenges to accurate detection of hazardous analyzes in tea soups. In this work, we have carefully predicted, evaluated, and confirmed the matrix effects in tea that have an undesired influence on the detection of aflatoxin B1 (AFB1) in tea soups by lateral flow test strips (LFTS). After pretreatment of tea samples by simple dilution to change the acidic tea soups to alkaline environments, the matrix effects can be completely eliminated and the reliability of AFB1 analysis in tea soups can be effectively guaranteed. AFB1 contaminated samples of different tea soups can be accurately measured with detection limits down to 0.05 ppb. As the first pioneering report to study the matrix effects on AFB1 monitoring in tea soups by LFTS, we definitely expect this work to further widen the application of LFTS for hazard screening in food safety.

引用

页数：8

共 33 条

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