摘要
为提高牦牛骨的利用率,实现高值化利用,本文采用GC-MS和IUPAC法测定了牦牛骨脂质组成和理化指标,并进行分析。脂质组学分析共检出20种脂肪酸,其中SFA(饱和脂肪酸)含量占脂肪酸总量的41.75%,FA n:1(单不饱和脂肪酸)为53.01%,PUFA(多不饱和脂肪酸)1.46%,其他为3.79%。在负离子模式下共检测出4种脂质:Car(乙酰左旋肉碱)、SM(鞘磷脂)、PC(磷脂酰胆碱)和TAG(三脂酰甘油及中性脂肪),含量依次是PC>SM>TAG>Car。理化指标结果表明:牦牛腿骨脂质的脂肪酸稳定性较好且饱和脂肪酸较多。从牦牛腿骨中检出了两种物质:α-三烯酚和γ-三烯酚。油脂的氧化稳定性显示,牦牛骨油脂的诱导时间为5.56 h,牦牛骨的油脂氧化稳定性比较高,具有较强的抗氧化效果。脂肪酸与骨健康密不可分,而牦牛骨脂质脂肪酸含量丰富,因此,牦牛骨可以作为维护骨健康的潜在的营养剂。
In order to improve yak bone utilization rate and realize high-value utilization, the lipid composition and physicochemical parameters of yak bone were determined and analyzed by GC-MS and IUPAC method. A total of 20 fatty acids were detected by lipidomic analysis, of which SFA(Saturated fatty acid) content accounted for 41.75%, FA n:1(Monounsaturated fatty acid) 53.01%, PUFA(Polyunsaturated fatty acid) 1.46%, and others 3.79%. A total of four lipids were detected in negative ion mode: Car(Acetyl L-Carnitine), SM(Sphingomyelines), PC(Phosphatidylcholines) and TAG(Triacylglycerols), and the contents were PC>SM>TAG>Car in order. The results of physical and chemical indexes showed that the fat of yak leg bone had better stability and more saturated fatty acids. Two substances, α-trienol and γ-trienol, were detected in yak leg bones. The oxidation stability of oil showed that the induction time of yak bone oil was 5.56 h, the oxidation stability of yak bone oil was high, and it had strong anti-oxidation effect. Fatty acids are closely related to bone health. Yak bone is rich in fatty acids. Therefore, yak bone can be used as a potential nutrient to maintain bone health.
作者
梁云霞
谢素雅
李红波
张小勇
徐丹
莫海珍
刘振彬
胡梁斌
LIANG Yunxia;XIE Suya;LI Hongbo;ZHANG Xiaoyong;XU Dan;MO Haizhen;LIU Zhenbin;HU Liangbin(Institute of Food and Biological Engineering,Shaanxi University of Science and Technology,Xi'an 710021,China;COFCO ET(Xi'an)International Engineering Co.,Ltd.,Xi'an 710082,China)
出处
《食品工业科技》
CAS
北大核心
2022年第13期251-257,共7页
Science and Technology of Food Industry
基金
国家自然科学基金(31901795)
陕西省重点研发计划(2021NY-157,2021NY-174)
陕西省大学生创新创业训练计划项目(S202110708120)
广西省自然科学基金(2019GXNSFBA245085,2020GXNSFAA259055)。
关键词
牦牛骨
脂质组成
脂肪酸组成
理化性质
yak bone
lipid composition
fatty acid profile
physical and chemical properties
