Batch Culture
Mostrando 1-12 de 481 artigos, teses e dissertações.
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1. SIMULTANEOUS LIPID AND CAROTENOID PRODUCTION BY STEPWISE FED-BATCH CULTIVATION OF Rhodotorula mucilaginosa WITH CRUDE GLYCEROL
Abstract In the present study, an innovative cultivation strategy of Rhodotorula mucilaginosa CCT 7688 to accumulate both lipids and high added value carotenoids was proposed, with the potential to contribute to the economic feasibility of microbial oils in comparison with vegetable oils. The stepwise fed-batch cultivation with crude glycerol feeding at 24 h
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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2. Production of Propionic Acid by Propionibacterium acidipropionici from Agroindustrial Effluents
Abstract The purpose of this paper was to evaluate the production of propionic acid from the fermentation of agroindustrial effluents using a Propionibacterium acidipropionici culture. The composition of the substrates was determined by using an experimental design of mixtures, resulting in 10 trials. The substrates were fermented in batch borosilicate glass
Braz. arch. biol. technol.. Publicado em: 05/09/2019
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3. ISOLATION AND IDENTIFICATION OF YEAST STRAINS FROM SUGARCANE MOLASSES, DATES AND FIGS FOR ETHANOL PRODUCTION UNDER CONDITIONS SIMULATING ALGAL HYDROLYSATE
ABSTRACT Yeast strains were isolated from sugar cane molasses (S1), dates (S2) and figs (S3) and the ethanol production was evaluated in batch condition. A comparison was made with the yeast Saccharomyces cerevisiae. The strains showed tolerant characteristics to stressful conditions like salinity and ethanol. The isolated strains produced ethanol; at 20 h o
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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4. Nutritional value changes in response to temperature, microalgae mono and mixed cultures
Resumo Objetivo Avaliar o desenvolvimento de Pseudopediastrum boryanum (Turpin) E. Hegewald e Scenedesmus obliquus (Turpin) Kützing em cultivos unialgais e mistos, em três diferentes temperaturas, 20, 30 e 40 °C, em escala laboratorial, em termos de biomassa e composição bioquímica. Métodos O cultivo foi do tipo batelada, em meio ASM1. A densidade c
Acta Limnol. Bras.. Publicado em: 03/06/2019
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5. Acetic acid production by the newly isolated Pseudomonas sp. CSJ-3
ABSTRACT A fermentative acetic acid producing strain, named CSJ-3, was isolated from sludge and identified as Pseudomonas sp. on the basis of 16S rRNA gene analysis. The effects of cultivation conditions on the production of acetic acid by Pseudomonas sp. CSJ-3 were investigated in batch fermentation, and the maximum yield of acetic acid reached up to 0.49 %
Braz. J. Chem. Eng.. Publicado em: 2018-01
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6. 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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7. Identifying yeast isolated from spoiled peach puree and assessment of its batch culture for invertase production
Abstract The identification of yeasts isolated from spoiled Jubileu peach puree using the API 20C AUX method and a commercial yeast as witness were studied. Subsequently, the yeast’s growth potential using two batch culture treatments were performed to evaluate number of colonies (N), reducing sugar concentration (RS), free-invertase (FI), and culture-inve
Food Sci. Technol. Publicado em: 21/11/2016
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8. Enhanced production of erythritol and mannitol by Yarrowia lipolytica in media containing surfactants
Abstract Various chemical compounds, including surfactants, when introduced to culture media may increase the permeability of cellular membranes and thereby affect the quantity of metabolites excreted by cells. The aim of the present study was to evaluate the impact of detergents including Triton X-100, Span 20 and Tween 80 on erythritol production from glyc
Braz. J. Microbiol.. Publicado em: 2016-06
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9. Effects of oxygen transfer coefficient on dihydroxyacetone production from crude glycerol
Abstract The principal objective of this study was to evaluate the kinetics of dihydroxyacetone production by Gluconobacter frateurii CGMCC 5397 under different oxygen volumetric mass transfer coefficient (kLa) conditions in submerged bioreactors using biodiesel-derived crude glycerol as the carbon source. kLa is a key fermentation parameter for the producti
Braz. J. Microbiol.. Publicado em: 2016-03
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10. Development of Fed-Batch Cultivation Strategy for Efficient Oxytetracycline Production by Streptomyces rimosus at Semi-Industrial Scale
ABSTRACTOxytetracycline (OTC) production byStreptomyces rimosus was studied in batch and fed-batch cultures in shake flask and bioreactor levels using semi-defined medium. First, the effect of glucose concentration on OTC production and growth kinetics was studied intensively. The optimal glucose concentration in the medium was 15 g/L. Higher glucose concent
Braz. arch. biol. technol.. Publicado em: 2015-10
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11. Production of Inulinase by Free and Immobilized Cells of Penicillium funiculosum p.36
The aim of this work was to optimize the growth conditions and continuous production of the enzyme using free and immobilized cells of inulinase by Penicillium funiculosum. The highest yield of enzyme (163.5U/mL) was obtained when the culture was incubated at 27oC and 200 rpm for 96h in a fermentation medium containing both inulin and peptone as sole carbon
Braz. arch. biol. technol.. Publicado em: 2015-08
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12. The use of date waste for lactic acid production by a fed-batch culture using
Lactobacillus casei subsp.rhamnosus The production of lactic acid from date juice by
Lactobacillus casei subsp.rhamnosus in batch and fed-batch cultures has been investigated. The fed-batch culture system gave better results for lactic acid production and volumetric productivity. The aim of this work is to determine the effects of the feeding rate and the cBraz. J. Microbiol.. Publicado em: 21/07/2015