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Use of Chemical Mutagenesis for the Isolation of Food Grade ß-Galactosidase Overproducing Mutants of Bifidobacteria,Lactobacilli and Streptococcus thermophilus
probiotics ß beta -galactosidase mutagenesis
2008/4/1
A classical chemical mutagenesis protocol was evaluated for increasing ß-galactosidase production by probiotic bacteria to improve their potential to treat symptoms of lactose malabsorption in h...
Evaluation of Media for Selective Enumeration of Streptococcus thermophilus, Lactobacillus delbrueckii ssp. bulgaricus, Lactobacillus acidophilus, and Bifidobacteria
enumeration Streptococcus thermophilus Lactobacillus spp., bifidobacteria
2008/3/26
Fifteen media were evaluated to determine their suitability for selective enumeration of Streptococcus thermophilus, Lactobacillus delbrueckii ssp. bulgaricus, Lactobacillus acidophilus, and bifidobac...
Cloning and Characterization of the Galactokinase Gene from Streptococcus thermophilus
Streptococcus thermophilus galactose galactokinase
2008/3/22
The objective of this research was to clone and characterize the galactokinase gene (galK) from Streptococcus thermophilus F410. Partially digested genomic DNA was cloned into pBR322 and transformed i...
Carbon Dioxide Effects on the Growth and Metabolites of Morphological Variants of Streptococcus thermophilus
Streptococcus thermophilus morphological variants carbon dioxide metabolites production
2008/3/19
The effects were studied of agitation and addition of C02 and NaHCO3 on growth of two morphological variants of Streptococcus thermophilus CNRZ 368 that differed in their cell morphology and chain len...
A Comparative Study: Aminopeptidase Activities from Lactobacillus delbrueckii ssp. bulgaricus and Streptococcus thermophilus
aminopeptidase Lactobacillus delbrueckii ssp. bulgaricus Streptococcus thennophilus
2008/3/18
Aminopeptidases from Lactobacillus delbrueckii ssp. bulgaricus and Streptococcus thermophilus were isolated. Enzymes were purified by chromatography on DEAE-cellulose and Sephadex G-150. The enzymes h...
An Index of Proteolysis Degree in Ewes' Milk and Ewes' Milk Yoghurt, by Single Strains and Combinations of Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus, Isolated from Traditional Greek Yoghurt
yoghurt Str thermophilus Lb. bulgaricus ninhydrin
2010/11/23
The proteolysis degree in ewes' milk by 5 Streptococcus thermophilus and 4 Lactobacillus delbrueckii subsp. bulgaricus strains, as well as by their 20 combinations in ewes' milk yoghurt, was determine...