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Leg Med (Tokyo)

Title:		Identification of volatile organic compounds in muscle tissues of different species based on Headspace-Gas-Chromatography Ion-Mobility spectrometry
Author(s):		Li XB; Guo CH; Qi YH; Lu WH; Xu GT; Wang BY; Zhang DB; Zhao SP; Ding MX;
Address:		"Key Laboratory of Evidence Identification in Universities of Shandong Province, Shandong University of Political Science and Law, Jinan, Shandong 250014, People's Republic of China. Institute of Forensic Pathology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, People's Republic of China. Forensic and Pathology Laboratory, Judicial Expertise Center, Jiaxing University Medical College, Jiaxing, Zhejiang 314001, People's Republic of China. Experimental Testing Center, Shandong Haineng Scientific Instrument Co. Ltd, Jinan, Shandong 250101, People's Republic of China. Genetic and Prenatal Diagnosis Center, Second Hospital of Shandong University, Jinan, Shandong 250033, People's Republic of China. Electronic address: sddmx2012@126.com"
Journal Title:		Leg Med (Tokyo)
Year:		2022
Volume:		20220806
Issue:
Page Number:		102132 -
DOI:		10.1016/j.legalmed.2022.102132
ISSN/ISBN:		1873-4162 (Electronic) 1344-6223 (Linking)
Abstract:		"Species identification of unknown biological samples is crucial for forensic applications, especially in cases of explosion, disaster accidents, and body mutilation after murdering, as well as poaching, illegal trade in endangered animals, and meat food fraud. In this study, we identified 60 volatile organic compounds (VOCs) in fresh skeletal muscle tissues of seven different animal species (cattle, sheep, pigs, rabbits, rats, chickens and carp) and a human dead body by headspace-gas-chromatography ion-mobility spectrometry (HS-GC-IMS), and compared their differences by retention time, drift time and molecular weight. The results showed that these VOCs formed different gallery plot fingerprints in the skeletal muscle tissues of the human dead body and seven animal species. Principal component analysis (PCA) showed significantly different fingerprints between these species, and these fingerprints maintained good stability between the species and within the same species. Some VOCs have high species specificity, while VOCs of human fresh muscle tissues from different individual sources have little difference, demonstrating that all tested muscle tissue samples could be distinguished based on different VOCs. HS-GC-IMS has proved to be a rapid, high-throughput, highly sensitive and specific species identification method, which can be used for forensic species identification in criminal cases and disaster accidents, as well as detection in the field of food safety, such as meat fraud and adulteration"
Keywords:		Animals Swine Cattle Humans Sheep Rabbits Rats *Volatile Organic Compounds/analysis Gas Chromatography-Mass Spectrometry/methods Chickens Ion Mobility Spectrometry/methods Muscles Forensic chemistry Headspace-gas chromatography-ion mobility spectroscopy (;
Notes:		"MedlineLi, Xue-Bo Guo, Cheng-Hao Qi, Ying-Hua Lu, Wen-Hui Xu, Guang-Tao Wang, Ben-You Zhang, Dian-Bin Zhao, Shi-Peng Ding, Ming-Xia eng Ireland 2022/08/12 Leg Med (Tokyo). 2022 Nov; 59:102132. doi: 10.1016/j.legalmed.2022.102132. Epub 2022 Aug 6"