Studies on collagen from the skin of channel catfish (Ictalurus punctaus)
Studies on collagen from the skin of channel catfish (Ictalurus punctaus)
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DOI：
10.1016/j.foodchem.2006.01.059
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发表时间：
2007-01-01
期刊：
影响因子：
8.8
通讯作者：
Guo, ShiDong
中科院分区：
文献类型：
--
作者：
Liu, HaiYing;Li, Ding;Guo, ShiDong
从癍点叉尾（Ictalurus punctaus）鱼皮中提取酸溶性和胃蛋白酶溶性胶原（ASC和PSC），并对其进行部分表征。实验中获得的胶原蛋白含有超过23%的甘氨酸作为最丰富的氨基酸。酸溶性胶原的变性温度为32.5 ℃，比猪皮胶原的变性温度低约5 ℃。SDS-PAGE显示胶原蛋白由两条不同的α链组成，这与猪I型胶原蛋白相似。以干重计，皮肤ASC和PSC的含量分别为25.8%和38.4%。这些结果表明，癍点叉尾鮰皮肤有潜力作为脊椎动物胶原蛋白来源的补充。(c)2006爱思唯尔有限公司保留所有权利。
Acid-soluble and pepsin-soluble collagens (ASC and PSC) were extracted from the skin of channel catfish (Ictalurus punctaus) and partially characterized. The collagen obtained in the experiment contained more than 23% glycine as the most abundant amino acid. The denaturation temperature of acid-soluble collagen was 32.5 degrees C, about 5 degrees C lower than that of the porcine skin collagen. SDS-PAGE showed that the collagens were composed of two distinct alpha chains, which is similar to the porcine type I collagen. The contents of the skin ASC and PSC, on a dry weight basis, were 25.8% and 38.4%, respectively. These results suggest that channel catfish skin has potential as a supplement to the sources of vertebrate collagens. (c) 2006 Elsevier Ltd. All rights reserved.