A variety of lactic acid bacteria were screened for their ability to produce folate intracellularly and/or extracellularly. Lactococcus lactis, Streptococcus thermophilus, and Leuconostoc spp. all produced folate, while most Lactobacillus spp., with the exception of Lactobacillus plantarum, were not able to produce folate. Folate production was further investigated in L. lactis as a model organ...

This study aimed to evaluate the effectiveness of natural casing treatment with nisin and phosphoric acid on control of spoilage microorganisms in vacuum packaged sausages. Ovine casings were dipped in the following baths: 1) 0.1% food grade phosphoric acid; 2) 5.0 mg/L nisin; 3) 0.1% phosphoric acid and 5.0 mg/L nisin; and 4) sterile water (control). The sausages were produced in a pilot plant...

It is well known that under special conditions certain fatty acids markedly affect growth of lactic acid bacteria. In the microbiological assay of riboflavin and of pantothenic acid, marked stimulation of the assay organism, Lactobacillus cusei, results from the presence of small amounts of lecithin or of fatty acids (1, 2) when these vitamins are present in suboptimal amounts. At higher levels...

A bacterial community analysis, using a culture-independent method (polymerase chain reaction-denaturing gradient gel electrophoresis), detected 17 species of bacteria including species of the genera Tetragenococcus, Lactobacillus, Pediococcus, Weissella Halanaerobium, Clostridium, and Sphingomonas in a traditional salty-fermented fish paste known as pla-ra or pa-daek in Thailand and Laos, whic...

Sourdough is an old example of a natural starter composed mixture flour, water, and metabolites produced by naturally occurring lactic acid bacteria yeasts that influence bread aroma. In this work, four types sourdough were used to prepare bread: one with yeast beer three yeasts. The physicochemical parameters (pH, moisture, water activity, organic acids) the sourdoughs assessed. Lactic, acetic...

Probiotic potential of thermotolerant lactic acid bacteria isolated from “Gari “a cassava-based African fermented foodBertrand Tatsinkou Fossi, Robert Ndjouenkeu

lactic acid bacteria are characterized as gram-positive, usually non-motile, non-sporulating bacteria that produce lactic acid as a major or sole product of their fermentative metabolism. in this study, the presence of lactobacilli were investigated in the intestines of beluga ( huso huso) and persian sturgeon ( acipenser persicus ), inhabiting caspian sea. the obtained data showed that various...

background and objective: constant use of limited number of lactic acid bacteria species in biopreservation can cause genetic degradation and or rising resistance against food pathogens or antimicrobial substances they produce. for this objective, a newly isolated strain of lactobacillus acidophilus possessing high antimicrobial activity was evaluated as a candidate for use in biopreservation. ...