食品科学2018，Vol.39Issue(8)：103-107,5.DOI:10.7506/spkx1002-6630-201808017
苏尼特羊和小尾寒羊的屠宰性能、肉品质、脂肪酸和挥发性风味物质比较
Slaughter Performance, Meat Quality, Fatty Acids and Volatile Components of Sunit Lambs and Small-Tailed Han Lambs
摘要
Abstract
The slaughter performance of Sunit sheep and Small-Tailed Han sheep (5-month-old, 10 animals for each breed) was investigated. The quality, fatty acid composition and volatile compounds of Longissimus dorsi muscles from these lambs were comparatively evaluated. The results showed that the meat percentage and bone to meat ratio of Sunit lambs were significantly greater than those of Small-Tailed Han lambs (P < 0.05). In addition, in terms of meat color parameters (a* and b*) and tenderness Sunit lambs were better than Small-Tailed Han lambs (P < 0.05). There was, however, no significant difference in cooked meat percentage or pH between the two breeds. Fatty acid analysis showed that the contents of saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA) in Sunit lambs were higher than in Small-Tailed Han lamb. The contents of palmitic acid (C16:0) and stearic acid (C18:0) in Sunit lambs were significantly higher than in Small-Tailed Han lambs (P < 0.05), but no significant differences in the dominant unsaturated fatty acids (C18:1, C18:2n6cand C20:4n6) were present between both breeds. The main volatile compounds identified in lamb meat were carbonyl and alcohol compounds and the contents and composition of these compounds were largely affected by breeds with aldehydes and acetones being more abundant and alcohols being less abundant in Sunit lambs than in Small-Tailed Han lambs. Hexanal, octanal nonanal, 1-octen-3-ol and 2, 3-octanedione may be mainly responsible for the formation of meat flavor.关键词
苏尼特羊/小尾寒羊/屠宰性能/肉品质/脂肪酸/挥发性物质Key words
Sunit lamb/Small-Tailed Han lamb/slaughter performance/meat quality/fatty acids/volatile components分类
轻工纺织引用本文复制引用
罗玉龙,王柏辉,赵丽华,苏琳,苏日娜,侯艳茹,杨蕾,靳烨..苏尼特羊和小尾寒羊的屠宰性能、肉品质、脂肪酸和挥发性风味物质比较[J].食品科学,2018,39(8):103-107,5.基金项目
国家自然科学基金地区科学基金项目(31660439) （31660439）
"十三五"国家重点研发计划重点专项(2016YFE0106200) （2016YFE0106200）
内蒙古自治区高等学校科学研究项目(NJZY16060) （NJZY16060）
