Lactobacillus Fermentum
Mostrando 1-12 de 114 artigos, teses e dissertações.
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1. Growth kinetic models of five species of Lactobacilli and lactose consumption in batch submerged culture
Abstract Kinetic behaviors of five Lactobacillus strains were investigated with Contois and Exponential models. Awareness of kinetic behavior of microorganisms is essential for their industrial process design and scale up. The consistency of experimental data was evaluated using Excel software. L. bulgaricus was introduced as the most efficient strain with t
Braz. J. Microbiol.. Publicado em: 2017-06
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2. Development of an autochthonous starter culture for spreadable goat cheese
Abstract The aim of this work was to select strains of LAB autochthonous from Santiago del Estero to formulate a starter culture for making spreadable goat cheese. Four strains were selected: CRL1799 (Lactobacillus fermentum with high acidifying activity), CRL1803 (Lactobacillus fermentum with high proteolytic activity), CRL1808 (Lactobacillus rhamnosus with
Food Sci. Technol. Publicado em: 09/09/2016
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3. Screening and kinetics of glutaminase and glutamate decarboxylase producing lactic acid bacteria from fermented Thai foods
L-glutaminase and glutamic acid decarboxylase (GAD) catalyzes the hydrolysis of L-glutamine and glutamate, respectively. L-glutaminase widely used in cancer therapy along with a combination of other enzymes and most importantly these enzymes were used in food industries, as a major catalyst of bioconversion. The current investigation was aimed to screen and
Food Sci. Technol. Publicado em: 2014-12
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4. Qualidade de leites fermentados produzidos com Lactobacillus rhamnosus e Lactobacillus fermentum isolados de queijos artesanais
Leites fermentados por Lactobacillus rhamnosus e Lactobacillus fermentum, isolados de queijos artesanais, foram produzidos e avaliados quanto às características físico-químicas e microbiológicas durante 45 dias de estocagem a 8-10ºC. Análises sensoriais foram realizadas aos 15 e 60 dias. Ambos os leites fermentados apresentaram contagens adequadas das
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2014-08
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5. Chemical inhibition of the contaminant Lactobacillus fermentum from distilleries producing fuel bioethanol
The purpose of this study was to determine the Minimum Inhibitory Concentration (MIC) of pure or mixed chemicals for Saccharomyces cerevisiae and Lactobacillus fermentum in the samples isolated from distilleries with serious bacterial contamination problems. The biocides, which showed the best results were: 3,4,4' trichlorocarbanilide (TCC), tested at pH 4.0
Braz. arch. biol. technol.. Publicado em: 2014-06
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6. Lactobacilli isolated from Algerian goat's milk as adjunct culture in dairy products
In this study, nineteen Lactobacillus isolated from Algerian goat's milk, 13 belonging to L. plantarum, three to L. pentosus, two to L. rhamnosus and one to L. fermentum, were examined in vitro in order to be used as adjunct culture in dairy products. The strains were tested for their proteolytic activity, sensory and safety properties. Strains LbMS16 and Lb
Braz. arch. biol. technol.. Publicado em: 31/01/2014
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7. Evaluation of stress tolerance and fermentative behavior of indigenous Saccharomyces cerevisiae
Sixty six indigenous Saccharomyces cerevisiae strains were evaluated in stressful conditions (temperature, osmolarity, sulphite and ethanol tolerance) and also ability to flocculate. Eighteen strains showed tolerant characteristics to these stressful conditions, growing at 42 ºC, in 0.04% sulphite, 1 mol L-1 NaCl and 12% ethanol. No flocculent characteristi
Braz. J. Microbiol.. Publicado em: 15/11/2013
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8. Identification of Lactobacillus plantarum, Lactobacillus pentosus and Lactobacillus fermentum from honey stomach of honeybee
This study aimed to isolate and identify Lactobacillus in the honey stomach of honeybee Apis dorsata. Samples of honeybee were collected from A. dorsata colonies in different bee trees and Lactobacillus bacteria isolated from honey stomachs. Ninety two isolates were Gram-stained and tested for catalase reaction. By using bacterial universal primers, the 16S
Braz. J. Microbiol.. Publicado em: 2013-09
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9. The chemical composition, fermentation profile, and microbial populations in tropical grass silages
The objective of this study was to evaluate the fermentation profile, chemical composition and microbial population and losses in the silages of signalgrass and Mombasa grass fertilized with the following levels of nitrogen (N): 0, 30, 60 and 90 kg/ha. The grasses were harvested at 70 days of regrowth, chopped and then ensiled in laboratory silos that had 20
R. Bras. Zootec.. Publicado em: 2013-09
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10. Molecular identification of Lactobacillus spp. associated with puba, a Brazilian fermented cassava food
Puba or carimã is a Brazilian staple food obtained by spontaneous submerged fermentation of cassava roots. A total of 116 lactobacilli and three cocci isolates from 20 commercial puba samples were recovered on de Man, Rogosa and Sharpe agar (MRS); they were characterized for their antagonistic activity against foodborne pathogens and identified taxonomicall
Braz. J. Microbiol.. Publicado em: 19/03/2013
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11. In vitro antagonistic growth effects of Lactobacillus fermentum and Lactobacillus salivarius and their fermentative broth on periodontal pathogens
As lactobacilli possess an antagonistic growth property, these bacteria may be beneficial as bioprotective agents for infection control. However, whether the antagonistic growth effects are attributed to the lactobacilli themselves or their fermentative broth remains unclear. The antagonistic growth effects of Lactobacillus salivarius and Lactobacillus ferme
Braz. J. Microbiol.. Publicado em: 2012-12
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12. Identificação bioquímica e molecular de Lactobacillus spp. isolados do íleo de frangos de corte tratados ou não com antimicrobianos
Objetivou-se caracterizar bioquimicamente e molecularmente as espécies de Lactobacillus spp. isoladas do íleo de frangos de corte tratados ou não com antimicrobianos. Utilizou-se 400 pintos de corte alojados em 25 boxes de 2m² (16 aves/boxe), distribuídos em um delineamento inteiramente casualizado, em grupos de cinco tratamentos e cinco repetições: d
Cienc. Rural. Publicado em: 2012-09