食品科学 ›› 2012, Vol. 33 ›› Issue (3): 48-53.doi: 10.7506/spkx1002-6630-201203011

• 基础研究 • 上一篇    下一篇

波纹巴非蛤酶解过程的肽谱变化

陈 忻,陈晓刚,陈杰文,孙恢礼   

  1. 1.佛山科学技术学院理学院 2.中国科学院南海海洋研究所 3.中国科学院研究生院
  • 出版日期:2012-02-15 发布日期:2012-02-14
  • 基金资助:
    “十一五”国家科技支撑计划项目(2008BAD94B08);广东省2009 院省合作项目(2009B091300018); 广东省 2010 院省合作项目(2010B090900027)

Variations in Peptide Mass Fingerprints of Paphia undulata Muscle Hdyrolysates during Enzymatic Hydrolysis

CHEN Xin,CHEN Xiao-gang,CHEN Jie-wen,SUN Hui-li   

  1. 1. College of Chemistry and Chemical Engineering, Foshan University, Foshan 528000, China; 2. South China Sea Institute of Oceanlogy, Chinese Academy of Sciences, Guangzhou 510301, China; 3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2012-02-15 Published:2012-02-14

摘要: 以波纹巴非蛤为原料,酶解1~6h制备酶解液。在SDS-PAGE电泳法测定肽谱的基础上,再利用液相色谱-质谱联用测定波纹巴非蛤酶解的肽谱变化。结果表明:酶解前3h时酶解液的肽分子的分子质量大概主要集中在100、50、2kD,酶解液大都是大分子肽或者中分子肽;酶解4、5、6h时酶解液的肽分子的分子质量基本没变化,其分子质量主要集中在400~600D,即为小分子肽,酶解4h时为酶解终点。

关键词: 波纹巴非蛤, 活性肽, SDS-PAGE电泳法, 液相色谱-质谱联用

Abstract: Paphia undulate muscles were hydrolyzed with papain and the hydrolysates after hydrolysis for 1, 2, 3, 4, 5 h and 6 h were analyzed by SDS-PAEG and LC-MS/MS. The results revealed that the molecular mass distribution of peptides in Paphia undulate muscle hydrolysates was mostly concentrated on 100, 50 kD and 2 kD during the first 3 hours of the hydrolysis, most of them large or small peptides. No substantial difference in the molecular mass distribution of peptides, which was mostly between 400 D and 600 D, was observed among the 4 h, 5 h and 6 h hydrolysates, suggesting that 4 h was the end point of the hydrolysis.

Key words: Paphia undulate, bioactive peptide, SDS-PAGE, LC-MS

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