从摩洛哥产单峰驼奶中分离出的乳酸菌的特性研究
Characterization of lactic acid bacteria isolated from the one humped camel milk produced in Morocco.
作者信息
Khedid K, Faid M, Mokhtari A, Soulaymani A, Zinedine A
机构信息
Department of Microbiology, National Institute of Health (INH), P.O. Box 769, Agdal, Rabat, Morocco.
出版信息
Microbiol Res. 2009;164(1):81-91. doi: 10.1016/j.micres.2006.10.008. Epub 2006 Dec 21.
One hundred and twenty (120) strains of lactic acid bacteria (LAB) were enumerated and isolated from raw dromedary milk in Morocco using various cultured media. Strains isolated were characterized by phenotypic, physiological and biochemical properties. Results showed that high counts of LAB were found. Presumptive lactobacilli counts ranged from 2.5x10(2) to 6x10(7)cfu/ml, presumptive lactococci levels varied from 5x10(2) to 6x10(7)cfu/ml, presumptive streptococci counts varied from 4.2x10(2) to 8x10(7)cfu/ml, presumptive leuconostoc levels ranged from 5.4x10(2) to 5.4x10(7)cfu/ml. Results showed also that Lactobacillus and Lactococcus were the predominant genera with 37.5% and 25.8%, respectively. The dominated species found were Lactococcus lactis subsp. lactis (17.5%), Lactobacillus helveticus (10%), Streptococcus salivarius subsp. thermophilus (9.20%), Lactobacillus casei subsp. casei (5.80%) and Lactobacillus plantarum (5%). This is the first report on the characterization of LAB strains isolated from the one humped camel milk produced in Morocco.
使用多种培养基从摩洛哥的生鲜单峰骆驼奶中计数并分离出120株乳酸菌（LAB）。对分离出的菌株进行了表型、生理和生化特性鉴定。结果表明，LAB的数量很多。推测的乳酸杆菌计数范围为2.5×10²至6×10⁷cfu/ml，推测的乳酸球菌水平在5×10²至6×10⁷cfu/ml之间，推测的链球菌计数从4.2×10²至8×10⁷cfu/ml不等，推测的明串珠菌水平范围为5.4×10²至5.4×10⁷cfu/ml。结果还表明，乳酸杆菌属和乳酸球菌属是主要的属，分别占37.5%和25.8%。发现的优势种是乳酸乳球菌乳酸亚种（17.5%）、瑞士乳杆菌（10%）、唾液链球菌嗜热亚种（9.20%）、干酪乳杆菌干酪亚种（5.80%）和植物乳杆菌（5%）。这是关于从摩洛哥生产的单峰驼奶中分离出的LAB菌株特性的首次报道。
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