Erdman M D, Bergen W G, Reddy C A
Appl Environ Microbiol. 1977 Apr;33(4):901-5. doi: 10.1128/aem.33.4.901-905.1977.
The amino acid profiles, modified essential amino acid (MEAA) indexes, and in vitro pepsin digestibilities were determined for single-cell protein (SCP) from certain industrially important lactobacilli. For the three parameters examined, substantial differences were seen between different Lactobacillus species and between strains with a given species. SCP from all of the lactobacilli examined appeared relatively high in MEAA indexes and pepsin digestibility. SCP from L. acidophilus 3205 and L. fermenti 3954 had the highest MEAA indexes, whereas L. bulgaricus 2217 and L. thermophilus 3863 had the highest percentage of digestible crude protein. SCP from L. plantarum strains had the lowest MEAA indexes. The essential amino acid compositions of SCP from different lactobacilli appear comparable to that of Food and Agriculture Organization reference protein and SCP from other sources.
测定了某些具有工业重要性的乳酸菌单细胞蛋白（SCP）的氨基酸谱、改良必需氨基酸（MEAA）指数和体外胃蛋白酶消化率。在所检测的三个参数方面，不同的乳酸菌种类之间以及同一菌种的不同菌株之间均存在显著差异。所检测的所有乳酸菌的SCP在MEAA指数和胃蛋白酶消化率方面都相对较高。嗜酸乳杆菌3205和发酵乳杆菌3954的SCP具有最高的MEAA指数，而保加利亚乳杆菌2217和嗜热栖热菌3863的可消化粗蛋白百分比最高。植物乳杆菌菌株的SCP具有最低的MEAA指数。不同乳酸菌的SCP的必需氨基酸组成与联合国粮食及农业组织参考蛋白以及其他来源的SCP相当。
