食品科学 ›› 2018, Vol. 39 ›› Issue (22): 57-63.doi: 10.7506/spkx1002-6630-201822010

• 食品化学 • 上一篇    下一篇

驴皮胶及鹿皮胶的化学品质分析与评价

张磊,王燕华,刘畅,宫瑞泽,李珊珊,孙印石*   

  1. (中国农业科学院特产研究所,吉林?长春 130112)
  • 出版日期:2018-11-25 发布日期:2018-11-21
  • 基金资助:
    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)

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

ZHANG Lei, WANG Yanhua, LIU Chang, GONG Ruize, LI Shanshan, SUN Yinshi*   

  1. (Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun 130112, China)
  • Online:2018-11-25 Published:2018-11-21

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。

关键词: 驴皮胶, 鹿皮胶, 化学品质

Abstract: 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 (35.46 μg/g), while 9 nucleosides in deer skin gelatin, xanthine being the major one (70.44 μg/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.

Key words: donkey-hide gelatin, deer skin gelatin, chemical quality

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