| Title: | Determination of volatile organic compounds by HS-GC-IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut |
| Author(s): | Wang S; Mo H; Xu D; Hu H; Hu L; Shuai L; Li H; |
| Address: | School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an China. Department of Horticulture and Landscape Architecture Henan Institute of Science and Technology Xinxiang China. College of Food and Biological Engineering Hezhou University Hezhou China |
| ISSN/ISBN: | 2048-7177 (Print) 2048-7177 (Electronic) 2048-7177 (Linking) |
| Abstract: | "The aim of this study was to evaluate the performance of volatile organic compounds (VOCs) for evolution monitoring and early detection of Aspergillus flavus (A. flavus) contamination in walnuts. We successfully applied headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) to evaluate walnut VOC changes caused by A. flavus contamination. A total of 48 VOCs were identified in walnuts contaminated with A. flavus. After identification of VOCs, a heat map and principal component analysis (PCA) highlighted ethyl acetate-D, 3-methyl-2-butanol, and cyclohexanone as potential biomarkers specific to A. flavus contamination in walnuts. These results provided valid targets for the development of sensors to evaluate the early mold contamination in stored walnuts" |
| Keywords: | A.flavus gas chromatography headspace ion mobility spectrometry volatile organic compounds walnut; |
| Notes: | "PubMed-not-MEDLINEWang, Shan Mo, Haizhen Xu, Dan Hu, Huiling Hu, Liangbin Shuai, Liang Li, Hongbo eng 2021/05/25 Food Sci Nutr. 2021 Mar 11; 9(5):2703-2712. doi: 10.1002/fsn3.2229. eCollection 2021 May" |
