Ethanol production from macaúba (Acrocomia aculeata) presscake hemicellulosic hydrolysate by Candida boidinii UFMG14.
Bioresour Technol
; 146: 261-266, 2013 Oct.
Article
em En
| MEDLINE
| ID: mdl-23941709
ABSTRACT
Yeasts capable of growth on xylose were isolated from macaúba (Acrocomia aculeata) fruit, a Brazilian palm tree with great potential for use as biodiesel feedstock production. Candida boidinii UFMG14 strain achieved the highest ethanol production (5 g/L) and was chosen to ferment macaúba presscake hemicellulosic hydrolysate (MPHH). The MPHH was produced by the first time in this work and the resultant fivefold concentrate showed considerable sugar content (52.3 and 34.2 g/L xylose and glucose, respectively) and low furfural (0.01 g/L) and hydroxymethylfurfural (0.15 g/L) concentrations. C. boidinii UFMG14 fermentation was evaluated in supplemented and non-supplemented MPHH containing either 10 or 25 g/L of xylose. The maximum ethanol production (12 g/L) was observed after 48 h of fermentation. The ethanol yield was significantly affected by supplementation and concentration of MPHH while ethanol productivity was affected only by MPHH concentration. This is the first study demonstrating theC. boidinii potential for ethanol production from hemicellulose byproducts.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polissacarídeos
/
Xilose
/
Candida
/
Etanol
/
Biocombustíveis
/
Frutas
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Bioresour Technol
Ano de publicação:
2013
Tipo de documento:
Article