食品科学 ›› 2006, Vol. 27 ›› Issue (12): 556-559.

• 工艺技术 • 上一篇    下一篇

草鱼皮酸溶性和酶溶性胶原蛋白的提取及性质

张建忠,安辛欣,王林,胡秋辉   

  1. 南京农业大学食品科技学院;
  • 出版日期:2006-12-15 发布日期:2011-11-23

Isolation and Characterization of Acid-soluble and Pepsin-soluble Collagens from Skin of Grass Carp(Ctenopharyngodon idellus)

 ZHANG  Jian-Zhong, AN  Xin-Xin, WANG  Lin, HU  Qiu-Hui   

  1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Online:2006-12-15 Published:2011-11-23

摘要: 本文研究了从草鱼皮中提取酸溶性胶原蛋白(ASC)和酶溶性胶原蛋白(PSC)及其部分性质。草鱼皮中ASC和PSC的提取得率以干基计分别为8.0%和18.6%;对草鱼皮ASC和PSC的紫外光谱分析,最大吸收峰都接近223nm;SDS-PAGE电泳图谱显示草鱼皮胶原蛋白是由两条不同的α链组成,分子量都在100kDa以上,与猪皮I型胶原蛋白相似;草鱼皮ASC和PSC热变性温度分别为33.8、34.5℃,只比猪皮的热变性温度(37℃)低3℃左右。结果表明草鱼皮胶原蛋白在功能食品、医药、化妆品、制药等方面有潜在的应用。

关键词: 草鱼, 胶原蛋白, 提取, 性质

Abstract: Acid-soluble and pepsin-soluble collagens (ASC and PSC) were extracted from the skin of grass carp and partially characterized. The yields of ASC and PSC on dry basis from grass carp were 8.0 % and 18.6% respectively. The UV spectra of ASC and PSC from grass carp showed that the distinct absorption was obtained near 223 nm; SDS-PAGE showed that the collagens were composed of two distinct alpha chains, which is similar to the porcine type I collagen. The denaturation temperature of ASC and PSC from grass carp was 33.8℃ and 34.5℃ respectively lower about 3℃ than that of the porcine skin collagen (37℃). These results suggest that grass carp skin has potential application in the functional food, healthcare, cosmetic and pharmaceutical industries.

Key words: grass carp, collagen, isolation, characterization