« Previous AbstractChemical Analysis of Commercial White Wines and Its Relationship with Consumer Acceptability    Next AbstractFunctional Characterization of a (E)-beta-Ocimene Synthase Gene Contributing to the Defense against Spodoptera litura »

Foods

Title:		Detection of Specific Volatile Organic Compounds in Tribolium castaneum (Herbst) by Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry
Author(s):		Han S; He K; An J; Qiao M; Ke R; Wang X; Xu Y; Tang X;
Address:		"College of Engineering, China Agricultural University, Beijing 100083, China. Sinolight Inspection& Certification Co., Ltd., Beijing 100083, China"
Journal Title:		Foods
Year:		2023
Volume:		20230625
Issue:		13
Page Number:		-
DOI:		10.3390/foods12132484
ISSN/ISBN:		2304-8158 (Print) 2304-8158 (Electronic) 2304-8158 (Linking)
Abstract:		"The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), is a major storage pest that could lead to a wide range of damage. Its secretions have a significant impact on the quality of stored grain and food, leading to serious food safety problems such as grain spoilage and food carcinogenesis. This study investigates new detection techniques for grain storage pests to improve grain insect detection in China. The primary volatile organic chemicals (VOCs) in these secretions are identified using headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). The specific VOCs that are unique to T. castaneum are selected as criteria for determining the presence of T. castaneum in the granary. To obtain more specific VOCs, experiments were designed for the analysis of T. castaneum samples under different extraction times, two types of SPME fibers and two GC-MS devices of different manufacturers. The experimental results showed that 12 VOCs were detected at relatively high levels, seven of which were common and which were not detected in other grains and grain insects. The seven compounds are 1-pentadecene, 2-methyl-p-benzoquinone, 2-ethyl-p-benzoquinone, 1-hexadecene, cis-9-tetradecen-1-ol, m-cresol and paeonol. These seven compounds can be used as volatile markers to identify the presence of T. castaneum, which could serve as a research foundation for the creation of new techniques for T. castaneum monitoring"
Keywords:		Tribolium castaneum gas chromatography-mass spectrometry (GC-MS) solid-phase microextraction (SPME) volatile organic compounds;
Notes:		"PubMed-not-MEDLINEHan, Shaoyun He, Ke An, Jing Qiao, Mengmeng Ke, Runhui Wang, Xiao Xu, Yang Tang, Xiuying eng 2019YFC1605300/the China National Key R&D Program during the 13th Five-year Plan Period/ Switzerland 2023/07/14 Foods. 2023 Jun 25; 12(13):2484. doi: 10.3390/foods12132484"