Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut

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 e...

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Main Authors: Shan Wang, Haizhen Mo, Dan Xu, Huiling Hu, Liangbin Hu, Liang Shuai, Hongbo Li
Format: Article
Language:English
Published: Wiley 2021-05-01
Series:Food Science & Nutrition
Subjects:
Online Access:https://doi.org/10.1002/fsn3.2229
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author Shan Wang
Haizhen Mo
Dan Xu
Huiling Hu
Liangbin Hu
Liang Shuai
Hongbo Li
author_facet Shan Wang
Haizhen Mo
Dan Xu
Huiling Hu
Liangbin Hu
Liang Shuai
Hongbo Li
author_sort Shan Wang
collection DOAJ
description 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.
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spelling doaj.art-7a1e1221bf104dc68e475c47072a8bed2023-10-12T12:06:31ZengWileyFood Science & Nutrition2048-71772021-05-01952703271210.1002/fsn3.2229Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnutShan Wang0Haizhen Mo1Dan Xu2Huiling Hu3Liangbin Hu4Liang Shuai5Hongbo Li6School of Food and Biological Engineering Shaanxi University of Science and Technology Xi’an ChinaSchool of Food and Biological Engineering Shaanxi University of Science and Technology Xi’an ChinaSchool of Food and Biological Engineering Shaanxi University of Science and Technology Xi’an ChinaDepartment of Horticulture and Landscape Architecture Henan Institute of Science and Technology Xinxiang ChinaSchool of Food and Biological Engineering Shaanxi University of Science and Technology Xi’an ChinaCollege of Food and Biological Engineering Hezhou University Hezhou ChinaSchool of Food and Biological Engineering Shaanxi University of Science and Technology Xi’an ChinaAbstract 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.https://doi.org/10.1002/fsn3.2229A. flavusgas chromatographyheadspaceion mobility spectrometryvolatile organic compoundswalnut
spellingShingle Shan Wang
Haizhen Mo
Dan Xu
Huiling Hu
Liangbin Hu
Liang Shuai
Hongbo Li
Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut
Food Science & Nutrition
A. flavus
gas chromatography
headspace
ion mobility spectrometry
volatile organic compounds
walnut
title Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut
title_full Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut
title_fullStr Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut
title_full_unstemmed Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut
title_short Determination of volatile organic compounds by HS‐GC‐IMS to detect different stages of Aspergillus flavus infection in Xiang Ling walnut
title_sort determination of volatile organic compounds by hs gc ims to detect different stages of aspergillus flavus infection in xiang ling walnut
topic A. flavus
gas chromatography
headspace
ion mobility spectrometry
volatile organic compounds
walnut
url https://doi.org/10.1002/fsn3.2229
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