摘要
选择3只澳洲美利奴羔羊的背最长肌、臀肌及臂三头肌,利用气相色谱-质谱联用技术对其脂肪酸含量进行测定及分类探讨。结果表明:澳洲美利奴羊肉中共含有脂肪酸35种,其中C15:1、C16:0、C17:1、C18:0、C18:1 n-9c脂肪酸含量较高,3个部位肌肉中:不饱和脂肪酸含量>饱和脂肪酸含量>单不饱和脂肪酸含量>多不饱和脂肪酸含量,且每个部位肌肉中单不饱和脂肪酸含量比多不饱和脂肪酸含量均高出2~3倍;n-3脂肪酸亚麻酸甲酯(C18:3 n-3)在臂三头肌中的含量显著高于背最长肌(P<0.05);与另外2个部位相比,臂三头肌总脂肪酸、饱和脂肪酸、不饱和脂肪酸、中链脂肪酸及长链脂肪酸含量均最高;臂三头肌中多不饱和脂肪酸与饱和脂肪酸含量比值最高,背最长肌中最低。
In this study,Longissimus dorsi,gluteal and Triceps brachii muscles from each of three Australian Merino lambs were selected for the determination of their fatty acid compositions by gas chromatography-mass spectrometry(GC-MS).The results showed that a total of 35 fatty acids were found in the meat of Australian Merino sheep,with C15:1,C16:0,C17:1,C18:0,C18:1 n-9c fatty acids being dominant.The contents of various classes of fatty acids were in the following decreasing order:unsaturated fatty acids(UFA)>saturated fatty acids(SFA)>monounsaturated fatty acids(MUFA)>polyunsaturated fatty acids(PUFA)for all three muscles,with the content of MUFA being 2–3 times higher than that of PUFA.The content of n-3 fatty acid(C18:3 n-3,methyl linolenate)in Triceps brachii was significantly higher than that in Longissimus dorsi(P<0.05).Among the three muscles,Triceps brachii had the highest contents of total fatty acids,SFA,UFA,medium-chain fatty acids and long-chain fatty acids.The ratio of PUFA to SFA acids(P/S)was the highest in Triceps brachii and lowest in Longissimus dorsi.
作者
谢遇春
奈日乐
杨峰
车天宇
郭俊涛
苏馨
赵存
王志新
刘志红
李金泉
XIE Yuchun;NAI Rile;YANG Feng;CHE Tianyu;GUO Juntao;SU Xin;ZHAO Cun;WANG Zhixin;LIU Zhihong;LI Jinquan(Engineering Research Center for Goat Genetics and Breeding,Inner Mongolia Autonomous Region,Key Laboratory of Mutton Sheep Genetics and Breeding,Ministry of Agriculture,Key Laboratory of Animal Genetics,Breeding and Reproduction,Inner Mongolia Autonomous Region,College of Animal Science,Inner Mongolia Agricultural University,Hohhot 010018,China;College of Agriculture and Forestry,Hulunbuir University,Hulunbuir 021008,China)
出处
《肉类研究》
北大核心
2020年第8期8-12,共5页
Meat Research
基金
“十三五”国家重点研发计划重点专项(2018YFD0502000)
内蒙古自治区科技重大专项(2020ZD0004)
国家自然科学基金地区科学基金项目(31360537
31660640)
内蒙古自治区双一流建设青年基金项目(QN202001
QN201902)
内蒙古自治区关键技术攻关计划项目(2020GG0030)。
关键词
澳洲美利奴羊
脂肪酸
背最长肌
臀肌
臂三头肌
Australian Merino lamb
fatty acid
Longissimus dorsi
gluteal muscle
Triceps brachii
