食品科学 ›› 2008, Vol. 29 ›› Issue (10): 384-387.

• 生物工程 • 上一篇    下一篇

分离自广式腊肠的Staphylococcus condimenti和Macrococcus caseolyticus对腊肠中蛋白质水解程度的影响

 吴燕涛, 孙为正, 崔春, 吴娜, 赵谋明, 曹宝森   

  1. 华南理工大学轻工与食品学院; 国家食品质量安全监督检验中心;
  • 出版日期:2008-10-15 发布日期:2011-12-08

Effects of Staphylococcus condimenti and Macrococcus caseolyticus on Proteolysis of Cantonese Sausage

 WU  Yan-Tao, SUN  Wei-Zheng, CUI  Chun, WU  Na, ZHAO  Mou-Ming, CAO  Bao-Sen   

  1. 1.College of Light Industry and Food Science,South China University of Technology,Guangzhou 510640,China; 2.China National Food Quality Safety Supervision and Inspection Center,Beijing 100094,China
  • Online:2008-10-15 Published:2011-12-08

摘要: 通过对腊肠中可溶性氮(SN)、氨基酸态氮(AN)、肽基氮(PN)、游离氨基酸分析(FAA),结合质构分析和感官评价,研究Staphylococcus condimenti和Macrococcus caseolyticus两株分离自广式腊肠中的菌株对广式腊肠中蛋白质组成及降解情况的影响。结果表明:接种后腊肠中小分子肽含量增多,支链氨基酸含量相对下降,但AN、PN及FAA总量变化不明显。质构和感官分析结果显示两株菌株对腊肠的风味和质地均有一定影响。在现有的加工工艺条件下,腊肠中蛋白质分解作用总体较弱,但对最终产品的特征风味有重要贡献。

关键词: 广式腊肠, 蛋白降解, 葡萄球菌, 巨球菌, 质构分析, 定量感官分析

Abstract: Textural analysis and sensory analysis,as well as determination of soluble nitrogen,amino acid nitrogen,peptide nitrogen and free amino acid contents were condcted to investigate the effects of Staphylococcus condimenti and Macrococcus caseolyticus on the proteolysis of the Cantonese sausage. Results indicated that the content of oligopeptide increases,but the contents of branched-chain amino acids decrease,and no significant changes are found on AN and PN. The two strains can improve the flavor and textural qualities of Cantonese sausage. Although the proteolysis of Cantonese sausage is weak because of the processing conditions and technology,the inoculation of the two strains is important for the flavor of the sausage.

Key words: Cantonese sausage, proteolysis, Staphylococcusi condiment, iMacrococcus case olyticu, stextural profile analysis, quantitative descriptive analysis (QDA)