驴皮胶及鹿皮胶的化学品质分析与评价  

Chemical Quality Analysis and Evaluation of Donkey Hide Gelatin and Deer Skin Gelatin

作　　者：张磊[1] 王燕华[1] 刘畅[1] 宫瑞泽 李珊珊[1] 孙印石[1] ZHANG Lei;WANG Yanhua;LIU Chang;GONG Ruize;LI Shanshan;SUN Yinshi(Institute of Special Animal and Plant Sciences,Chinese Academy of Agricultural Sciences,Changchun 130112,China)

机构地区：[1]中国农业科学院特产研究所,吉林长春130112

出　　处：《食品科学》2018年第22期57-63,共7页Food Science

基　　金：中国农业科学院科技创新工程项目(CAAS-ASTIP-2016-ISAPS);吉林省科技发展计划项目(20170311027YY;20170309002YY;20180201076YY)

摘　　要：利用电感耦合等离子体质谱、氨基酸自动分析仪、超高效液相色谱及毛细管气相色谱对驴皮胶及鹿皮胶中的重金属、氨基酸、核苷及脂肪酸含量与组成进行测定与分析。结果显示,驴皮胶及鹿皮胶中的重金属元素中以Pb及Cu含量较高,分别达到1.00 mg/kg及0.80 mg/kg左右,其余元素含量较低,均未到0.1 mg/kg;驴皮胶及鹿皮胶中氨基酸质量分数分别为85.66%及90.02%,必需氨基酸质量分数分别为16.14%及15.89%,其中Glu、Gly、Ala、Pro含量占比较高;驴皮胶中共含有12种核苷,其中黄嘌呤含量最高为35.46 μg/g;鹿皮胶中共含有9种核苷,其中次黄嘌呤含量最高为70.44 μg/g;驴皮胶及鹿皮胶中的主要脂肪酸为棕榈酸、棕榈油酸、油酸及亚油酸等;鹿皮胶中饱和脂肪酸及单不饱和脂肪酸含量占比较高;而驴皮胶中多不饱和脂肪酸、必需脂肪酸及n-6型不饱和脂肪酸含量更多;驴皮胶及鹿皮胶中的饱和脂肪酸/单不饱和脂肪酸/多不饱和脂肪酸的比例均接近于健康比例。The contents of heavy metals,amino acids,nucleosides and fatty acids in donkey hide gelatin and deer skin gelatin were measured by inductively coupled plasma mass spectrometry(ICP-MS),automatic amino acid analyzer,ultra performance liquid chromatography(UPLC)and gas chromatography(GC),separately.Results showed that the contents of Pb(1.00 mg/kg)and Cu(0.80 mg/kg)were much higher than those of other heavy metals(<0.1 mg/kg).The contents of total amino acids in the two gelatins were 85.66%and 90.02%,where the proportions of essential amino acids were 16.14%and 15.89%,respectively.Glutamic acid,glycine,alamine and proline were the dominant amino acids.Twelve nucleosides were detected in donkey hide gelatin with the dominance of xanthine(35.46μg/g),while 9 nucleosides in deer skin gelatin,xanthine being the major one(70.44μg/g).The major fatty acids found in both gelatins were palmitic acid,palmitoleic acid,oleic acid,and linoleic acid;saturated fatty acids(SFA)and monounsaturated fatty acids(MUFA)were more abundant in deer skin gelatin than in donkey hide gelatin.On the other hand,the contents of polyunsaturated fatty acids(PUFA),essential fatty acids(EFA)and n-6 unsaturated fatty acids were higher in donkey hide gelatin.The ratios of SFA/MUFA/PUFA in both gelatins were close to the healthy ratio.

关 键 词：驴皮胶 鹿皮胶 化学品质 

分 类 号：TS207.3[轻工技术与工程—食品科学]