LMOF serve as food preservative nanosensor for sensitive detection of nitrite in meat products
文献类型： 外文期刊
作者： Deng, Siyang 1 ; Liu, Huan 2 ; Zhang, Chunhui 1 ; Yang, Xinting 2 ; Blecker, Christophe 4 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Food Sci & Technol, Key Lab Agroprod Proc, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Res Ctr Informat Technol, Beijing 100097, Peoples R China
3.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
4.Univ Liege, Unit Food Sci & Formulat, Gembloux Agrobio Tech, Passage portes 2B, B-5030 Gembloux, Belgium
关键词： Nitrite; Rhodamine 6G; Luminescent metal organic framework; Meat products
期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）
ISSN： 0023-6438
年卷期： 2022 年 169 卷
页码：
收录情况： SCI
摘要： Nitrite (NO2) is widely present in meat products as a vital food preservative, while excessive nitrite is a serious carcinogen to human beings, developing a sensitive and selective nitrite detection method is of great significance for food safety. Herein, a novel luminescent metal organic framework (LMOF) (Rh6G@MOF-5) is prepared through a facile one-pot synthesis as a fluorescent turn-off sensor for NO2- determination. Upon exposure to NO2-, significant fluorescence intensity decreases linearly along with NO2- concentration in the range of 0-200 mu mol/L and the detection limit is estimated to be 0.2 mu mol/L. The developed nanocomposite has been shown to be an ultrasensitive and selective nanoprobe for detecting NO2- in meat products, with recoveries ranging from 96.1% to 103.2% with the RSDs less than 4%. Rh6G@MOF-5 nanoprobe offers insight into the fabrication of MOF-based sensors with low cost and convenient operation in analyte detection field.
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