Lactobacilli constitute an important group of non-pathogenic Gram-positive bacteria commonly found in foods like dairy products, beverages, fruits, vegetables and fermented meat as well as used in the preservation of plant-originated foods and feeds. Members of the genus Lactobacillus are also present in human and animal gastrointestinal (GI) and urogenital tract [Tannock 1995]. Lactobacilli, a...

Lactobacillus delbrueckii mutant Uc-3 utilizes both cellobiose and cellotriose efficiently, converting it into L(+) lactic acid. The enzyme activities of cellobiose and cellotriose utilization were determined for cell extracts, whole cells, and disrupted cells. Aryl-beta-glucosidase activity was detected only for whole cells and disrupted cells, suggesting that these activities are cell bound. ...

Lactobacillus delbrueckii subsp. bulgaricus CNRZ 397 is able to hydrolyze X-proline-para-nitroanilides and X-proline-beta-naphthylamides (X for alanyl- or glycyl-). A single metal-independent cytoplasmic enzyme with a molecular weight estimated to be 82,000 is responsible for these activities and was named X-prolyl-dipeptidyl aminopeptidase (X-Pro-DPAP). Isolation and analysis of mutants totall...

Amaç: Bu araştırmada farklı oranlarda inülin ilave edilerek üretilen ve Bifidobacterium longum, infantis, breve içeren sinbiyotik yoğurtların bazı kalite kriterleri canlı bakteri sayısı incelenmiştir. Materyal Yöntem: Probiyotik yoğurtlara %0.5, %0.75, %1 %2 oranında edilmiş, kontrol örneği de dahil olmak üzere 5 yoğurt üretilmiştir. Depolamanın 1., 7., 14. 21. günlerinde fiziksel, kimyasal, mi...

Probiotics are live microorganisms capable of producing beneficial effects on its host when consumed in adequate amounts. To exert these effects, foods must contain probiotic microorganisms in populations above 10(6) CFU/g or mL throughout its shelf life. One of the strategies to ensure high population of probiotics in fermented milk is to add them during or after the fermentation process separ...

Lactobacillus delbrueckii ssp. delbrueckii (AS13B), isolated from the gut of adult Dicentrarchus labrax, was administered live to developing sea bass using rotifers and Artemia as live carriers. Immune-related gene transcripts were quantified in post-larvae at day 70 post-hatch (ph) and histology, electron microscopy and immunocytochemistry of the intestinal tissue were performed at day 74 ph. ...