A study of fluorescence properties of citrinin in beta-cyclodextrin aqueous solution and different solvents
文献类型: 外文期刊
作者: Zhou, Youxiang 2 ; Chen, Jianbiao 1 ; Dong, Lina 1 ; Lu, Liang 1 ; Chen, Fusheng 1 ; Hu, Dingjin 2 ; Wang, Xiaohong 1 ;
作者机构: 1.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei Province, Peoples R China
2.Hubei Acad Agr Sci, Inst Qual Standard & Testing Technol Agraprod, Wuhan 430064, Hubei Province, Peoples R China
3.Minist Agr, Key Lab Food Safety Evaluat, Wuhan 430070, Hubei Province, Peoples R China
4.Natl Key Lab Agromicrobiol, Wuhan 430070, Hubei Province, Peoples R China
关键词: Citrinin;beta-cyclodextrin;Fluorescence enhancement;Solvent effect
期刊名称:JOURNAL OF LUMINESCENCE ( 影响因子:3.599; 五年影响因子:3.006 )
ISSN: 0022-2313
年卷期: 2012 年 132 卷 6 期
页码:
收录情况: SCI
摘要: Citrinin (CIT) is a nephrotoxic mycotoxin initially isolated from filamentous fungus Penicillin citrinum. It was later isolated from several other species, such as Aspergillus and Monascus. It has a conjugated, planar structure that gives it a natural fluorescence ability, which can be used to develop sensitive methods for detecting CIT in food. In this paper, we used the spectrofluorescence technique to study the effects of pH value, beta-cyclodextrin (beta-CD) and organic solvents on the CIT fluorescence intensity. The results show that lower pH value, aceitc acid, beta-CD and acetonitrile can induce a higher fluorescence intensity of CIT, but methanol or H2O has a decreasing effect on the fluorescence intensity of CIT. Findings in this study provide a theoretical basis for development of a high sensitivity fluorescence-based trace analysis for CIT detection. (C) 2012 Elsevier B.V. All rights reserved.
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