Nippon Eiyo Shokuryo Gakkaishi (J. Jpn. Soc.Nutr. Food Sci.) 47, 55~59 (1994) Lactic acid bacteria (3 strains of cocci and 10 strains of bacilli) and lactose-fermenting yeasts (18 strains) were isolated from a 24 h cultured of kefir milk. The lactococci and yeasts were identified as Streptococcus lactis and Kluyveromyees marxianus var. marxianus, respectively. The lactobacilli were of the heter...

BACKGROUND The Crabtree-negative yeast species Kluyveromyces lactis has been established as an attractive microbial expression system for recombinant proteins at industrial scale. Its LAC genes allow for utilization of the inexpensive sugar lactose as a sole source of carbon and energy. Lactose efficiently induces the LAC4 promoter, which can be used to drive regulated expression of heterologou...

A bacteriocin producing strain of Lactococcus lactis subsp. lactis LABW4 was isolated from naturally fermented milk product which exhibited strong antibacterial activity against Listeria monocytogenes MTCC657, a food spoilage psychrophilic organism. Both cell free and heat killed supernatants of LABW4 were effective to produce zones of inhibition against L. monocytogenes in vitro. The antibacte...