Abstract:
Lactic acid bacteria have acquired great importance by their presence in the food industry
and for a longtime.
Isolation of isolates strains from three samples of raw goat's milk from three regions
(kheir-Eddine, Achaacha, Sidi Ali) in the wilaya of Mostaganem, allowed us to obtain 20
strains to Gram positive and catalase negative.
For identified the isolates, we are use this tests : Growth in the presence of NaCl 6.5%;
growth at pH=5, pH= 9.6; growth test different temperatures (20C°, 15C°, 45C°); study of
heat resistance; growth test in mid milk Sherman; test hydrolysis of arginine (ADH); test
production of acetoin.
The results of technological test are satisfactory for industrial use.
