A total of 109 lactic acid bacteria isolated from infant faeces were identified by partial 16S rRNA, cpn60 and/or pheS sequencing. Lactobacillus was the most prevalent genus, representing 48% of the isolates followed by Enterococcus (38%). Lactobacillus gasseri (21%) and Enterococcus faecalis (38%) were the main species detected. A further selection of potential probiotic starter cultures for f...

Studies of the nutritive requirements of the bacterium, Lactobacillus casei, have contributed much to our present knowledge of animal nutrition. It appears that the vitamin requirements of this microorganism are very similar to those of animals. Landy and Dicken (1) reported a microbiological assay method for six B vitamins with Lactobacillus casei and a medium of essentially known composition....

By a series of quantitative assays of concentrates prepared in a variety of ways, it has been shown that the previously described growth factor now called "strepogenin," required by certain hemolytic streptococci, is very similar to and possibly identical with the recently described growth factors for Lactobacillus casei and Smith's Streptococcus lactis. An improved procedure for assay of strep...

background: today the use of natural substances plays a major role in improving the growth and immunity of aquatic organisms. objectives: the purpose of the present study was to evaluate the effects of iron nanoparticles with lactobacillus casei as a probiotic on growth parameters and probiotic counts in rainbow trout intestine. methods: seven hundred and twenty fish with 12±0.49 g initial weig...

Probiotic microorganisms such as lactic acid bacteria (LAB) exert a number of strain-specific health-promoting activities attributed to their immunomodulatory, anti-inflammatory and anti-carcinogenic properties. Despite recent attention, our understanding of the biological processes involved in the beneficial effects of LAB strains is still limited. To this end, the present study investigated t...

REID, V. E., AKD FRIEDKIN, M. 1973. Plasnzodizlfn bcrghci: Folic Acid Levels in Mouse Erythrocytes. Expcri~~cntal Purasifology 33, 424-428 (1973). Folate levels of parasitized whole blood increased over fourfold above noninfected controls based on microbiological assays with Lactobacillus casei. Most of this increase is attributed to oxidized forms of folate (mono, di, and triglutamates) and/or...

Background: Food preservation includes procedures to assure higher level of food safety, hygiene and stability. To achieve this goal, the use of combination biopreservatives, such as Essential oils and Probiotics, has gained increased attention. Objective: The aim of this study was to evaluate the antimicrobial effects of Mentha longifolia L. esential oil and Lactobacillus casei aginst Listeri...

Bu çalışmada ultrason uygulamasının farklı probiyotik laktobasil (Lactobacillus acidophilus, Lactobacillus casei, rhamnosus GG) türlerinin canlılığına etkisini incelenmiştir. Ayrıca, fermentasyon süresine etkisi de saptanmıştır. amaçla süte önce 15 dk süreyle 400 W uygulanmış ve kültür ilavesi sonrasında da 5 100 uygulanarak süresi belirlenmiş elde edilen yoğurt benzeri fermente süt ürününde ba...

the proline-rich β-casein was digested in vitro with trypsin, and the oligopeptides producedwere then isolated by rp-hplc and subsequently identified by amino acid analysis and ion massspectrometry. the peptide fractions from the complete digestion were then treated with purified x-prolyldipeptidyl peptidase (x-pdp) extracted from lactobacillus casei ssp. casei llg. two bitter peptides (f53-97a...

BACKGROUND Probiotics can modulate the immune system in healthy individuals and may help reduce symptoms related to respiratory infections. OBJECTIVE The objective of the study was to investigate the effect of the probiotic strain Lactobacillus paracasei subsp. paracasei, L. casei 431 (Chr. Hansen A/S) (hereafter, L. casei 431) on immune response to influenza vaccination and respiratory sympt...