Rhizopus Oryzae
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. Efeito do catalisador nos atributos físicos e aromáticos de blendas interesterificadas de gordura de leite e óleos vegetais
Resumo O presente estudo teve como objetivo verificar a influência do catalisador (metóxido de sódio e lipase de Rhizopus oryzae imobilizada em suporte híbrido - sílica-álcool polivinílico) nos atributos físicos e no aroma dos produtos obtidos a partir da interesterificação da gordura do leite com óleos vegetais (soja e canola). A avaliação foi
Braz. J. Food Technol.. Publicado em: 23/11/2018
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2. Effects of ethanol and ultraviolet-c treatments on inactivation of Rhizopus oryzae spores which cause postharvest rot
Abstract Rhizopus oryzae is a filamentous fungi reported as a postharvest pathogen in recent years. Ethanol treatment (0, 10, 20, and 30%) and UVC irradiation (0, 1, 2, 5, 10 minutes) were used both individually and in combination for the inactivation of Rhizopus oryzae spores. Survival ratio of the spores and LD50 values for ethanol and UVC irradiation were
Food Sci. Technol. Publicado em: 14/11/2018
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3. Bioprospecção e caracterização da atividade amilolítica de fungos filamentosos da Mata Atlântica Brasileira
Resumo Fungos filamentosos são organismos amplamente diversificados e ubíquos. Esta biodiversidade ainda é pouco caracterizada, desta forma, há um grande potencial a ser descoberto, sobretudo em biomas tropicais, que favorecem o crescimento e diversificação de espécies. Fungos filamentosos são extensivamente utilizados para a produção industrial de
Biota Neotrop.. Publicado em: 21/08/2017
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4. Performance of Chitosan/Glycerol Phosphate Hydrogel as a Support for Lipase Immobilization
A biocompatible and biodegradable hybrid chitosan/glycerol phosphate hydrogel (CS-GP) was prepared and evaluated as support for enzyme immobilization. In this work a lipase sn-1,3 specific from Rhizopus oryzae was physically immobilized in CS-GP by adsorption (PA) and in CS-GP modified chemically with glutaraldehyde (CS-GP-GA) by covalent attachment (CA). Th
Mat. Res.. Publicado em: 29/06/2017
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5. Production of flavor compounds from olive mill waste by Rhizopus oryzae and Candida tropicalis
Abstract The purpose of this study was to investigate the production of flavor compounds from olive mill waste by microbial fermentation of Rhizopus oryzae and Candida tropicalis. Olive mill waste fermentations were performed in shake and bioreactor cultures. Production of flavor compounds from olive mill waste was followed by Gas Chromatography–Mass spect
Braz. J. Microbiol.. Publicado em: 2017-06
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6. Analysis of microbial diversity in Shenqu with different fermentation times by PCR-DGGE
Abstract Shenqu is a fermented product that is widely used in traditional Chinese medicine (TCM) to treat indigestion; however, the microbial strains in the fermentation process are still unknown. The aim of this study was to investigate microbial diversity in Shenqu using different fermentation time periods. DGGE (polymerase chain reaction-denaturing gradie
Braz. J. Microbiol.. Publicado em: 2017-06
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7. SÍNTESE ENZIMÁTICA DO CAPRILATO DE ISOPENTILA UTILIZANDO ÓLEO FÚSEL COMO MATÉRIA-PRIMA
Four commercial lipase preparations immobilized by covalent attachment on epoxy-polysiloxane-β-cyclodextrin were tested as potential biocatalysts to mediate the esterification reaction of isopentanol with caprylic acid in solvent-free medium. Among them, the immobilized lipase from Rhizopus oryzae was the most active biocatalyst, attained ester conversion h
Quím. Nova. Publicado em: 2017-06
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8. Determinação das condições reacionais para mediar a interesterificação enzimática da gordura do leite e do óleo de soja
Resumo Lipase de grau alimentício de Rhizopus oryzae, imobilizada em uma matriz híbrida de polissiloxano-polivinilálcool (SiO2-PVA), foi usada como biocatalisador para mediar reações de interesterificação de uma mistura contendo 65% de gordura de leite e 35% de óleo de soja. Todas as reações ocorreram sob atmosfera inerte de nitrogênio, em reatore
Braz. J. Food Technol.. Publicado em: 29/09/2016
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9. PERFORMANCE OF LOOFA-IMMOBILIZED Rhizopus oryzae IN THE ENZYMATIC PRODUCTION OF BIODIESEL WITH USE OF OLEIC ACID IN n-HEXANE MEDIUM
AbstractThe performance of loofa-immobilized Rhizopus oryzae (as a whole-cell biocatalyst) in the synthesis of methyl oleate was evaluated using oleic acid as a model substrate. The activities of the cell-bound lipase in terms of the esterification and hydrolysis reactions were found to be higher for the immobilized cells as compared with those of the free c
Braz. J. Chem. Eng.. Publicado em: 2015-06
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10. Onychomycosis due to opportunistic molds
Abstract BACKGROUND: Onychomycosis are caused by dermatophytes and Candida, but rarely by non- dermatophyte molds. These opportunistic agents are filamentous fungi found as soil and plant pathogens. OBJECTIVES: To determine the frequency of opportunistic molds in onychomycosis. METHODS: A retrospective analysis of 4,220 cases with onychomycosis, diagnosed in
An. Bras. Dermatol.. Publicado em: 2015-06
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11. Kinetics Study of Extracellular Detergent Stable Alkaline Protease from Rhizopus oryzae
In this study, extracellular alkaline protease was produced from Rhizopus oryzae in submerged fermentation using dairy waste (whey) as a substrate. Fermentation kinetics was studied and various parameters were optimized. The strain produced maximum protease at initial medium pH of 6.0 medium depth of 26 mm, inoculum size of 2% at incubation temperature of 35
Braz. arch. biol. technol.. Publicado em: 29/08/2014
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12. Solid-state fermentation for the enrichment and extraction of proteins and antioxidant compounds in rice bran by Rhizopus oryzae
The objective of this work was to evaluate the solid-state fermentation with Rhizopus oryzae CCT 7560 of rice bran for the enrichment of proteins and the antioxidant compounds in the fermented biomass. Fermentation was performed in tray bioreactors at 30ºC for 120 h. Protein extraction was done at alkaline pH, followed by precipitation with acetone. Phenoli
Braz. arch. biol. technol.. Publicado em: 2012-12