Potential for aflatoxin B1 and B2 production by Aspergillus flavus strains isolated from rice samples

被引：37

作者：

Lai, Xianwen ^{[1
]}

Zhang, He ^{[1
]}

Liu, Ruicen ^{[1
]}

Liu, Chenglan ^{[1
]}

机构：

[1] South China Agr Univ, Minist Educ, Key Lab Nat Pesticide & Chem Biol, Guangzhou 510642, Guangdong, Peoples R China

来源：

SAUDI JOURNAL OF BIOLOGICAL SCIENCES | 2015年 / 22卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Aspergillus flavus; Rice grain; Aflatoxin; High performance liquid chromatography; China; MYCOTOXINS; OCHRATOXIN; DEOXYNIVALENOL; ZEARALENONE;

D O I：

10.1016/j.sjbs.2014.09.013

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this study, we investigated the potential for aflatoxin B-1 (AFB(1)) and B-2 (AFB(2)) production in rice grain by 127 strains of Aspergillus flavus isolated from rice grains collected from China. These strains were inoculated onto rice grains and incubated at 28 degrees C for 21 days. AFB(1) and AFB(2) were extracted and quantified by high-performance liquid chromatography coupled with fluorescence detection. Among the tested strains, 37% produced AFB(1) and AFB(2) with levels ranging from 175 to 124101 mu g kg(-1) for AFB(1) and from not detected to 10329 mu g kg(-1) for AFB(2). The mean yields of these isolates were 5884 mu g kg(-1) for AFB(1) and 1968 mu g kg(-1) for AFB(2). Overall, most of the aflatoxigenic strains produced higher levels of AFB(1) than AFB(2) in rice. The obtained information is useful for assessing the risk of aflatoxin contamination in rice samples. (C) 2014 King Saud University. Production and hosting by Elsevier B.V. All rights reserved.

引用

页码：176 / 180

页数：5

共 35 条

[1] Relationships between aflatoxin production and sclerotia formation among isolates of Aspergillus section Flavi from the Mississippi Delta [J].