Results 181 to 190 of about 7,309 (202)
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Cholesterol assimilation and biotransformation by Lactobacillus helveticus
Biotechnology Letters, 2011Lactobacillus helveticus, grown at 37°C in MRS medium supplemented with 3 mM cholesterol, assimilated all the cholesterol in 42 h having 68 U mg(-1) of intracellular cholesterol oxidase activity. The strain transformed 1 g cholesterol to 0.05 g of androsta-1, 4-diene-3, 17-dione and 0.04 g of androst-4-ene-3, 17 dione within 48 h at 37°C with ...
Jayesh J, Ahire +6 more
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Carbohydrate Research, 1997
Lactobacillus helveticus Lh59 produces a high-molecular-mass exopolysaccharide (> or = 2 x 10(6) Da) when cultured in skimmed milk. Compositional analysis, methylation analysis and NMR experiments (1H and 13C) recorded from the native polysaccharide as well as from oligosaccharides released by partial acid hydrolysis, allowed the complete structural ...
Stingele, Francesca +2 more
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Lactobacillus helveticus Lh59 produces a high-molecular-mass exopolysaccharide (> or = 2 x 10(6) Da) when cultured in skimmed milk. Compositional analysis, methylation analysis and NMR experiments (1H and 13C) recorded from the native polysaccharide as well as from oligosaccharides released by partial acid hydrolysis, allowed the complete structural ...
Stingele, Francesca +2 more
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Characterization of an arylesterase from Lactobacillus helveticus CNRZ32
Journal of Applied Microbiology, 2000An esterase gene (estA) was isolated from a previously constructed genomic library of Lactobacillus helveticus CNRZ32. The estA gene consisted of a 558 bp open reading frame encoding a putative peptide of 21.3 kDa. Protein sequence homology searches using BLAST revealed that EstA had low amino acid sequence identity with the serine-dependent ...
K M, Fenster, K L, Parkin, J L, Steele
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Proteolytic activity of probiotic strain Lactobacillus helveticus M92
Anaerobe, 2013The aim of this research was to investigate the potential of previously defined probiotic strain Lactobacillus helveticus M92 as functional starter culture for fermented dairy products. Therefore, proteolytic activity of L. helveticus M92 was investigated and compared with those of different representatives of probiotic and starter culture strains ...
Kos, Blaženka +5 more
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Carbohydrate Polymers, 2013
Sodium alginate (SA) at 2% (w/v) and low acylated gellan gum (LAG) at 0.2% (w/v) were used to microencapsulate Lactobacillus helveticus and Lactobacillus delbrueckii spp lactis by employing the internal ionic gelation technique through water-oil emulsions at three different stirring rates: 480, 800 and 1200 rpm.
Walfred, Rosas-Flores +2 more
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Sodium alginate (SA) at 2% (w/v) and low acylated gellan gum (LAG) at 0.2% (w/v) were used to microencapsulate Lactobacillus helveticus and Lactobacillus delbrueckii spp lactis by employing the internal ionic gelation technique through water-oil emulsions at three different stirring rates: 480, 800 and 1200 rpm.
Walfred, Rosas-Flores +2 more
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Antimicrobial compounds from Lactobacillus casei and Lactobacillus helveticus.
The new microbiologica, 1993Three strains of Lactobacillus casei and one of Lactobacillus helveticus were examined for antagonistic activity toward twenty five indicator strains of different species. Under conditions eliminating the effects of organic acid and hydrogen peroxide, culture supernatants of all the Lactobacillus strains exhibited a wide spectrum of inhibitory activity
M, Vescovo +3 more
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Carbohydrate Research, 1995
Lactobacillus helveticus strain TN-4, a spontaneous mutant strain of Lactobacillus helveticus TY1-2, produced an exocellular polysaccharide from reconstituted skim milk. On the basis of the results of methylation analysis, enzymatic digestion, mild Smith degradation, mild acid hydrolysis, acetolysis, and 1D and 2D 1H-NMR spectroscopy, it was concluded ...
Y, Yamamoto +4 more
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Lactobacillus helveticus strain TN-4, a spontaneous mutant strain of Lactobacillus helveticus TY1-2, produced an exocellular polysaccharide from reconstituted skim milk. On the basis of the results of methylation analysis, enzymatic digestion, mild Smith degradation, mild acid hydrolysis, acetolysis, and 1D and 2D 1H-NMR spectroscopy, it was concluded ...
Y, Yamamoto +4 more
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ISL2, a new mobile genetic element in Lactobacillus helveticus
Molecular and General Genetics MGG, 1994Spontaneous, phenotypically stable mutations at the beta-galactosidase locus (lacL-lacM) in Lactobacillus helveticus were identified and analyzed. We found that a significant number of mutations were caused by integration of a new IS element, ISL2, into these lac genes.
M C, Zwahlen, B, Mollet
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Variability of S-layer proteins in Lactobacillus helveticus strains
Anaerobe, 2014The presence of S-layer proteins in the cell envelope of Lactobacillus helveticus may be technologically important. S-layer proteins are the adhesion site for cell envelope proteinase, which forms the proteolytic pathway in bacteria. Eleven strains of L. helveticus were examined for the presence of S-layer proteins and slpH genes. S-layer proteins from
Adam, Waśko +3 more
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Mapping of three plasmids from Lactobacillus helveticus ATCC 15009
Letters in Applied Microbiology, 1993Three plasmids isolated from Lactobacillus helveticus ATCC 15009 were analysed by restriction digestion. A restriction map of the 22.0, 6.0 and 3.5 kb plasmids is presented. The existence of genetic markers such as carbohydrate fermentation, lactose metabolism, antibiotics and heavy metal ions resistance was also investigated but the plasmids remain ...
M G, Fortina +3 more
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