Yeast Contamination Treatment
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Green and brown propolis: efficient natural biocides for the control of bacterial contamination of alcoholic fermentation of distilled beverage
This study aimed to evaluate the efficiency of natural biocides, brown and green propolis, for the control of bacterial contamination in the production of sugarcane spirit. The treatments consisted of brown and green propolis extracts, ampicillin, and a control and were assessed at the beginning and end of harvest season in ten fermentation cycles. In the mi
Food Sci. Technol. Publicado em: 2014-12
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2. Heat treatment in sugar cane broth to rise bacterias contaminats Lactobacillus in the ethanol production and eficciency on alternative of treatment of yeast / Tratamento térmico do caldo de cana-de-açúcar visando a redução de contaminantes bacterianos - Lactobacillus - na produção de etanol e eficiência de tratamento do fermento por etanol
Na produção do etanol a etapa mais importante e crítica é a fermentação, por isso, há necessidade de focar a atenção ao processo e contaminações. Os contaminantes bacterianos de maior presença nessa etapa são os Lactobacillus. Com essa preocupação os objetivos deste trabalho são mostrar alternativas a redução desses contaminantes sendo eles
Publicado em: 2009
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3. Antagonismo entre leveduras e bactérias láticas na fermentação alcoólica / Antagonism between yeasts and lactic acid bacteria in alcoholic fermentation
This study aimed to evaluate the antagonism between yeasts and contaminating bacteria of the ethanol production process with different metabolisms (homo- and heterofermentative) in different conditions. Thus, the fermentation performance of Saccharomyces cerevisiae strains used in industrial fermentation (BG-1, CAT-1, PE-2 and Fleischmann) was analyzed in co
Publicado em: 2009
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4. Evaluation in vitro of Nomuraea rileyi to control Rhipicephalus (Boophilus) microplus tick. / Avaliação in vitro dos efeitos do agente etiológico Nomuraea rileyi no controle biológico do carrapato Rhipicephalus (Boophilus) microplus.
Rhipicephalus (Boophilus) microplus causes severe economic losses to the Brazilian cattle raising industry. In nowadays, the control of the cattle tick is especially based on the use of chemical acaricides. The inadequate use of these acaricides allows the development of ticks resistant strains and environmental contamination. Several entomopathogenic fungal
Publicado em: 2008
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5. Avaliação de parametros que afetam a floculação de leveduras e bacterias isoladas de processos industriais de fermentação alcoolica
The bacterial contamination in the alcoholic fermentation is one of the problems in the process of alcohol production. Yeast flocculation is one of the consequences of this contamination that strains of actobacillus fermentum are the first one microorganism quoted as responsible by this fenomen. Many factors may influence the yeast flocculation such as, gene
Publicado em: 2001
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6. Influencia da contaminação por bacteriaslacticos na fermentação alcoolica pelo processo de batelada alimentada
This research was carried out in 2 stages. The first stage involved isolation, taxonomy, tests of resistance to ethanol and commercial yeast flocculation tests, all aimed at selecting lactic bacteria which were natural contaminants of fermentation vats. In the second stage, a pilot system was set up to carry out fermentation assays simulating distillery cond
Publicado em: 1990
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7. Isolation, Purification, and Characterization of a Killer Protein from Schwanniomyces occidentalis
The yeast Schwanniomyces occidentalis produces a killer toxin lethal to sensitive strains of Saccharomyces cerevisiae. Killer activity is lost after pepsin and papain treatment, suggesting that the toxin is a protein. We purified the killer protein and found that it was composed of two subunits with molecular masses of approximately 7.4 and 4.9 kDa, respecti
American Society for Microbiology.
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8. Improved system for floor cleaning in health care facilities.
A new system has been developed for sanitizing floors in hospitals; this system replaces the traditional procedure of daily dusting and wet mopping with a disinfectant-detergent solution and periodic buffing . This new system relies on a sequence of procedures consisting of dust mopping using a chemically treated dust mop, machine buffing of a sprayed-on pol
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9. Isolation of Yersinia enterocolitica and related species from foods in France.
The occurrence of Yersinia enterocolitica and related species (Y. intermedia, Y. frederiksenii, Y. kristensenii) in foods from France was investigated by using different enrichment procedures. Initially, seven procedures were evaluated with pork products. These methods included a cold preenrichment in yeast extract-rose bengal broth or in phosphate-sorbitol-