期刊
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
卷 79, 期 5, 页码 785-791出版社
SPRINGER
DOI: 10.1007/s00253-008-1489-z
关键词
angiotensin I-converting enzyme (ACE); ACE inhibitory peptides; antihypertensive; Acetes chinensis; Lactobacillus fermentum; fermentation
Acetes chinensis is an underutilized shrimp species thriving in Bo Hai Gulf of China. Its hydrolysate digested with protease SM98011 has been previously shown to have high angiotensin I-converting enzyme (ACE) inhibitory activity (He et al., J Pept Sci 12:726-733, 2006). In this article, A. chinensis were fermented by Lactobacillus fermentum SM 605 and the fermented sauce presented high ACE inhibitory activity. The minimum IC50 value (3.37 +/- 0.04 mg/mL) was achieved by response surface methodology with optimized process parameters such as fermentation time of 24.19 h, incubation temperature at 38.10 degrees C, and pH 6.12. Three ACE inhibitory peptides are purified by ultrafiltration, gel filtration, and reverse-phase high performance liquid chromatography. Identified by mass spectrometry, their amino acid sequences are Asp-Pro, Gly-Thr-Gly, and Ser-Thr, with IC50 values of 2.15 +/- 0.02, 5.54 +/- 0.09, and 4.03 +/- 0.10 mu M, respectively. Also, they are all novel ACE inhibitory peptides. Compared with protease digestion, fermentation is a simpler and cheaper method to produce ACE inhibitory peptides from shrimp A. chinensis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据