Abstract This study evaluated the production of endoxylanases by Streptomyces malaysiensis AMT-3 in submerged fermentation using by-products of the food industry at 28ºC. In shake-flasks experiments, the highest endoxylanase activity of 45.8 U.mL-1 was observed within 6 days in a medium containing (w/v)...
Abstract Amylases are enzymes involved in starch hydrolysis, generating the most diverse products, such as maltose, glucose and dextrins. This work aimed the study of the production of amylolytic enzymes via solid-state fermentation (SSF) using "crueira", an essentially starchy cassava residue, as substr...
Abstract The objective of the present study was to develop a cost-effective medium, using agro-industrial wastes for the production of a polygalacturonase by Wickerhanomyces anomalus of interest in cassava starch industries. The effect of several raw agro-industrial wastes and others nutrients on polygal...
Abstract A comprehensive comparison of the main fermentation parameters, productivity, yield and final L-lactic acid concentration, obtained through batch, fed-batch and continuous cultivations using Lactobacillus casei CCDM 198 and a model cultivation medium was carried out. Using this data, a pulse-fee...
Background: Ammonium stress is a prime limiting phenomenon that occurs during methane formation from poultry manure. It is caused by elevated ammonium nitrogen concentrations that result from substrate decomposition. The amounts of methane formed depend on the activity of methanogenic microbes. Results: ...
Anaerobiosis,
Biocombustibles,
Microbiota,
Archaea/metabolismo,
Biodiversidad,
Aves de Corral,
Methanosarcinaceae/metabolismo,
Nitrógeno,
Metano,
Compuestos de Amonio,
Estrés Fisiológico,
Consorcios Microbianos,
Cromatografía Líquida de Alta Presión,
Fermentación,
Dermatoglifia del ADN,
Reacción en Cadena de la Polimerasa,
Estiércol
Since more than twenty years ago, some species of bacteria and fungi have been used to produce protein biomass or single-cell protein (SCP), with inexpensive feedstock and wastes being used as their sources of carbon and energy. The role of SCP as a safe food and feed is being highlighted more because of...
RESUMEN Objetivo. Evaluar el efecto de dosis crecientes del glucósido cianogénico Linamarina, en la reducción de metano ruminal in vitro. Materiales y Métodos. Se empleó líquido ruminal de dos ovejas fistuladas de la raza Merino Precoz, con el que se inoculó un sustrato fermentativo constituido...
RESUMEN Objetivo. Determinar la fermentación in vitro de consorcios bacterianos ruminales celulolíticos (CBC) conservados por liofilización usando carbón activado, maltosa y lactosa como preservadores. Materiales y métodos. Un CBC se aisló de fluido ruminal de una búfala de agua en medios selec...
Background: The increasing rate of breast cancer globally requires extraordinary efforts to discover new effective sources of chemotherapy with fewer side effects. Glutaminase-free L-asparaginase is a vital chemotherapeutic agent for various tumor malignancies. Microorganisms from extreme sources, such a...
Bacillus/enzimología,
Glutaminasa/metabolismo,
Asparaginasa/metabolismo,
Neoplasias de la Mama/metabolismo,
Neoplasias de la Mama/tratamiento farmacológico,
Células Inmovilizadas,
Fermentación,
Células MCF-7,
Asparaginasa/biosíntesis,
Pruebas de Enzimas,
Cinética,
Concentración de Iones de Hidrógeno,
Temperatura
Background: Fuels and chemicals from renewable feedstocks have a growing demand, and acetone, butanol and ethanol (ABE) are some relevant examples. These molecules can be produced by the bacterial fermentation process using hydrolysates generated from lignocellulosic biomass as sugarcane bagasse, one of ...
Saccharum/metabolismo,
Celulosa/metabolismo,
Fermentación,
Etanol/metabolismo,
Biocombustibles,
Acetona/metabolismo,
Butanoles/metabolismo,
Clostridium acetobutylicum/metabolismo,
Saccharum/química,
Celulosa/química,
Brasil
