Effects of oxygen and nutrients on xylitol and ethanol production in sugarcane bagasse hydrolyzates

Autor:	Blanca Rosa Aguilar-Uscanga, José Antonio Portilla-Arias, Juan Francisco Castañón-Rodríguez, María Guadalupe Aguilar-Uscanga
Rok vydání:	2015
Předmět:	Ethanol biology Chemistry Bioconversion food and beverages Lignocellulosic biomass biology.organism_classification Xylitol Applied Microbiology and Biotechnology Candida tropicalis chemistry.chemical_compound Biochemistry Yeast extract Ethanol fuel Food science Bagasse Food Science Biotechnology
Zdroj:	Food Science and Biotechnology. 24:1381-1389
ISSN:	2092-6456 1226-7708
DOI:	10.1007/s10068-015-0177-x
Popis:	The influence of oxygen and nutrient supplementation on xylitol and ethanol production in a synthetic medium and sugarcane bagasse hydrolyzates using Candida tropicalis IEC5-ITV and Saccharomyces cerevisiae ITV01- RD was investigated for evaluation of bioconversion of pentoses and hexoses present in the lignocellulosic biomass. The best oxygen transfer rate (56.05 mg of O2/L/h) and xylitol and ethanol yields (0.67 and 0.47 g/g, respectively) were obtained in a synthetic medium. A yeast extract had a positive effect on xylitol and ethanol production (0.64 and 0.44 g/g, respectively) at a concentration of 1 g/L. C. tropicalis and S. cerevisiae exhibited not previously observed morphological changes depending on the nutrient composition. Use of sugarcane bagasse hydrolyzates requires a good supply of oxygen and addition of a yeast extract to improve xylitol and ethanol production.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8c3624c4c1242af7b866d8dc28deddd3 https://doi.org/10.1007/s10068-015-0177-x Zobrazit plný text záznamu Full text from SpringerLink