植物乳杆菌6003对肌肉蛋白质的分解能力(Ⅰ)

Study on the Proteolysis Activities of L．Plantarum 6003 on Muscle Protein (Ⅰ)

本文研究了植物乳杆菌6003活细胞(Cell)、细胞裂解液(Cellextracts,CE)以及两者混合液(Cell+CE)对肌浆提取液中的蛋白质的分解作用。通过蛋白质、肽、游离氨基酸分析,表明Cell组以及Cell+CE组对肌浆提取液中蛋白质、肽分解和游离氨基酸的增加均有一定作用,其中Cell+CE组中这一现象更为显著。CE组对肌浆蛋白质的分解不起作用。

The proteolysis activities on muscle myofibrilliar protein extract s of whole cells, cell extracts (CE) or a combination of both (Cell+CE), of L.pla ntarum 6003 were determined by protein, peptide and free-amino-acid analyses. All treatments caused weak changes of protein, peptides and the increase of free amino acids in the extracts of myofibrilliar.These changes were rather sign ificant when the combination of whole cell and CE was involved. However the add ition of CE alone had almost no proteolysis.