Data/hora: 01/06/2024 16:39:02

Provedor de dados: | Brazilian Archives of Biology and Technology
País: | Brazil
Título: | Value addition of corn husks through enzymatic production of xylooligosaccharides
Autores: | Samanta,Ashis Kumar; Kolte,A.P.; Elangovan,A.V.; Dhali,A.; Senani,S.; Sridhar,M.; Suresh,K.P.; Jayapal,N.; Jayaram,C.; Roy,Sohini.
Data: | 2016-01-01
Ano: | 2016
Palavras-chave: | Corn waste; Xylan extraction; Prebiotic; Enzymatic process; XOS.
Resumo: | ABSTRACT Corn husks are the major wastes of corn industries with meagre economic significance. The present study was planned for value addition of corn husk through extraction of xylan, followed by its enzymatic hydrolysis into xylooligosaccharides, a pentose based prebiotic. Compositional analysis of corn husks revealed neutral detergent fibre 68.87%, acid detergent fibre 31.48%, hemicelluloses 37.39%, cellulose 29.07% and crude protein 2.68%. Irrespective of the extraction conditions, sodium hydroxide was found to be more effective in maximizing the yield of xylan from corn husks than potassium hydroxide (84% vs. 66%). Application of xylanase over the xylan of corn husks resulted into production of xylooligosaccharides with different degree of polymerization namely, xylobiose and xylotriose in addition to xylose monomer. On the basis of response surface model analysis, the maximum yield of xylobiose (1.9 mg/ml) was achieved with the enzymatic hydrolysis conditions of pH 5.8, temperature 44°C, enzyme dose 5.7U/ml and hydrolysis time of 17.5h. Therefore, the corn husks could be used as raw material for xylan extraction vis a vis its translation into prebiotic xylooligosaccharides.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100512
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/1678-4324-2016160078
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.59 2016
Fonte: | info:eu-repo/semantics/openAccess