乳酸菌中X-脯氨酰-二肽基肽酶的存在。
Presence of X-prolyl-dipeptidyl-peptidase in lactic acid bacteria.
作者信息
Casey M G, Meyer J
出版信息
J Dairy Sci. 1985 Dec;68(12):3212-5. doi: 10.3168/jds.S0022-0302(85)81229-7.
Abstract
Prolyl-dipeptidyl-peptidase activity was detected in cell extracts of 21 lactic acid bacteria tested. Using disc electrophoresis and various substrates it was possible to distinguish it from proline iminopeptidase and proline endopeptidase. Generally the activity was high and was greater than that of proline iminopeptidase of proline endopeptidase at neutral pH and at 25 degrees C.
摘要
在所检测的21株乳酸菌的细胞提取物中检测到了脯氨酰二肽基肽酶活性。利用圆盘电泳和各种底物，能够将其与脯氨酸亚氨基肽酶和脯氨酸内肽酶区分开来。一般来说，该活性较高，在中性pH值和25摄氏度时高于脯氨酸亚氨基肽酶或脯氨酸内肽酶的活性。
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