梨渣提取物中酵母的生长特性及生理功能
Growth characteristics and physiological functionality of yeasts in pear marc extracts.
作者信息
Jang In-Taek, Kang Min-Gu, Na Kwang-Chul, Lee Jong-Soo
机构信息
Department of Life Science and Genetic Engineering, Paichai University, Daejeon 302-735, Korea.
出版信息
Mycobiology. 2011 Sep;39(3):170-3. doi: 10.5941/MYCO.2011.39.3.170. Epub 2011 Sep 27.
Kluyveromyces fragilis KCTC 7260 and Saccharomyces cerevisiae KCTC 7904, which both grew well in pear marc extract, were selected and their growth profiles and physiological functionalities were determined. Both of the selected yeasts established maximal growth by 20 hr of cultivation at 30℃ in pear marc extract. The cell-free extracts showed high antihypertensive angiotensin I-converting enzyme inhibitory activity of 68.9% and 52.1%, respectively. The extracts also displayed 9.2 U/mL and 12.0 U/mL of protease activity, respectively.
脆壁克鲁维酵母KCTC 7260和酿酒酵母KCTC 7904在梨渣提取物中生长良好，对它们进行了筛选，并测定了其生长曲线和生理功能。两种选定的酵母在30℃下于梨渣提取物中培养20小时后均达到最大生长量。无细胞提取物分别显示出68.9%和52.1%的高抗高血压血管紧张素I转换酶抑制活性。提取物还分别显示出9.2 U/mL和12.0 U/mL的蛋白酶活性。
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