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| Identification of Volatile Metabolites of Lame Meat from Three Ovine and Caprine Breeds in Inner Mongolia by Gas Chromatography-Ion Mobility Spectrometry |
| LIU Zhihong, ZHAO Cun, XIE Yuchun, SU Xin, GUO Juntao, DAI Dongliang, QIN Qing, ZHANG Chongyan, LAN Mingxi, CAI Ting, YONG Quan, WANG Zhixin, LI Jinquan |
| 1.Engineering Research Center for Goat Genetics and Breeding, Inner Mongolia Autonomous Region, Key Laboratory of Mutton Sheep Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Key Laboratory of Animal Genetics, Breeding and Reproduction, Inner Mongolia Autonomous Region, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; 2.Agricultural and Animal Husbandry Technology Extension Center of Inner Mongolia Autonomous Region, Hohhot 010010, China; 3.Animal Disease Prevention and Control Center of East Ujimqin Banner, Xilingol 026000, China |
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Abstract In this study, six grazing Ujimqin sheep, six grazing Sunit sheep and six grazing Albas white cashmere goats with similar body mass were selected and slaughtered at six months of age to collect Longissimus dorsi muscles. The volatile flavor metabolites in the meat samples were determined qualitatively and quantitatively by gas chromatography-ion mobility spectrometry (GC-IMS), and differential volatile metabolites between the three breeds were identified by principal component analysis (PCA) and partial least square discriminant analysis (PLS-DA). The results showed that 52 volatile flavor metabolites were detected in all samples, among which seven differential metabolites between Ujimqin and Sunit sheep meat were identified, namely ethyl acetate, acetone, ethanol, 2-butanone, butyraldehyde, nonanal and benzaldehyde; seven differential metabolites between Ujimqin sheep and Albas white cashmere goat meat, namely acetone, ethyl acetate, 2-butanone, ethanol, benzaldehyde, 2-pentanone and 3-hydroxy-2-butanone; and ten differential metabolites between Sunit sheep and Albas white cashmere goat meat, namely acetone, ethanol, 2-butanone, nonanal, ethyl acetate, isovaleraldehyde, 3-hydroxy-2-butanone, 2-pentanone, benzaldehyde and octanal.
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2021, Vol. 35 
