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Food Chem

Title:		Discrimination of toxigenic and non-toxigenic Aspergillus flavus in wheat based on nanocomposite colorimetric sensor array
Author(s):		Chen Z; Lin H; Wang F; Adade SYS; Peng T; Chen Q;
Address:		"School of Food and Biological Engineering, Jiangsu University, No. 301 Xuefu Road, Jiangsu 212013, PR China. School of Food and Biological Engineering, Jiangsu University, No. 301 Xuefu Road, Jiangsu 212013, PR China. Electronic address: linhaolt794@163.com. School of Food and Biological Engineering, Jiangsu University, No. 301 Xuefu Road, Jiangsu 212013, PR China; College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China. Electronic address: qschen@ujs.edu.cn"
Journal Title:		Food Chem
Year:		2024
Volume:		20230801
Issue:
Page Number:		137048 -
DOI:		10.1016/j.foodchem.2023.137048
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"A novel method was developed for the early detection of wheat infected with Aspergillus flavus (A. flavus) using a nanocomposite colorimetric sensors array (CSA). LC-MS analysis revealed the presence of Aflatoxin B1 (AFB1) and Aflatoxin B2 (AFB2) on day seven, demonstrating mycotoxin variabilities in infected wheat. HS-SPME-GC-MS analysis detected 2-methylbutyral, a gas exclusively associated with toxigenic A. flavus. The CSA was modified using three nanoparticles of MOF and successfully used to detect the wheat infected with A. flavus. Discrimination of different types of infected wheat samples was achieved using the RGB difference map and Principal Component Analysis (PCA) model. Additionally, the Linear Discriminant Analysis (LDA) model accurately predicted the presence of toxigenic A. flavus at various stages of infection. These findings highlight the promising capabilities of nanocomposite CSA for early-stage detection of A. flavus infection in wheat"
Keywords:		Aspergillus flavus Triticum Colorimetry *Aflatoxins/analysis Aflatoxin B1 *Mycotoxins Toxigenic and non-toxigenic Aspergillus flavus Volatile organic compounds Wheat nanocomposite colorimetric sensors array;
Notes:		"MedlineChen, Zeyu Lin, Hao Wang, Fuyun Adade, Selorm Yao-Say Solomon Peng, Tingting Chen, Quansheng eng England 2023/08/07 Food Chem. 2024 Jan 1; 430:137048. doi: 10.1016/j.foodchem.2023.137048. Epub 2023 Aug 1"