Evaluation of the simultaneous production of xylitol and ethanol from sisal fiber
메타 데이터
바이오화학분류
바이오플라스틱
플라스틱
기타
바이오정밀화학
용매
화학제품
연료
기타
화장품용 기능성소재
계면활성제⁄증점제
기타
의료용 화학소재
식품첨가제
논문
Evaluation of the simultaneous production of xylitol and ethanol from sisal fiber
학술지
Biomolecules
저자명
Damiã o Xavier, Franklin; Santos Bezerra, Gustavo; Florentino Melo Santos, Sharline; Sousa Conrado Oliveira, Lí bia; Luiz Honorato Silva, Flá vio; Joice Oliveira Silva, Aleir; Maria Conceiç ã o, Marta
초록
<P>Recent years have seen an increase in the use of lignocellulosic materials in the development of bioproducts. Because sisal fiber is a low cost raw material and is readily available, this work aimed to evaluate its hemicellulose fraction for the simultaneous production of xylitol and ethanol. The sisal fiber presented a higher hemicellulose content than other frequently-employed biomasses, such as sugarcane bagasse. A pretreatment with dilute acid and low temperatures was conducted in order to obtain the hemicellulose fraction. The highest xylose contents (0.132 g·g<SUP>−1</SUP> of sisal fiber) were obtained at 120 °C with 2.5% (<I>v</I>/<I>v</I>) of sulfuric acid. The yeast <I>Candida tropicalis</I> CCT 1516 was used in the fermentation. In the sisal fiber hemicellulose hydrolysate, the maximum production of xylitol (0.32 g·g<SUP>−1</SUP>) and of ethanol (0.27 g·g<SUP>−1</SUP>) was achieved in 60 h. Thus, sisal fiber presents as a potential biomass for the production of ethanol and xylitol, creating value with the use of hemicellulosic liquor without detoxification and without the additional steps of alkaline pretreatment.</P>