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Lactic acid bacteria isolated from a hand-made Blue cheese.

机译:Lactic acid bacteria isolated from a hand-made Blue cheese.

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摘要

A total of 489 strains of aerobic mesophilic bacteria were isolated during manufacture and ripening of Valdeon cheese, a Spanish blue cheese hand-made from raw goat milk as described previously Milchwissenschaft (1995) 50, 381. Aerobic mesophilic isolates were mainly lactic acid bacteria (LAB) and were identified as 44.3 Enterococcus spp., 31.6 Lactococcus spp., 10.8 Lactobacillus spp., 9 Leuconostoc spp., 1.8 unidentified LAB and 2.2 non-LAB. Variations in selectivity of the different media used in the isolations are discussed. Lactococci and enterococci dominated during manufacture and in the early stages of ripening, but as ripening progressed, the lactobacilli and leuconostocs increased and the predominant species in the cheeseat the time of consumption were enterococci, lactobacilli and leuconostocs. The main species of each genus isolated were E. faecalis, L. lactis, Lb. plantarum and Leuc. mesenteroides, and their importance in the technological development of starters forthe industrial manufacture of Valdeon cheese, is discussed.

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