1 Citation (Scopus)

Abstract

Rice straw is one of the abundant lignocellulosic agricultural by-product in Indonesia. Rice straw has several characteristics that make it a potential raw material for bioenergy production such as ethanol. It contain high cellulose and hemicelluloses that can be hydrolyzed into fermentable sugars. This study aimed to hydrolyze rice straw cellulose and hemicellulose using xylanase, cellulose, and xylose isomerase enzymes. 2% H2SO4 was used in pretreatment before the rice straw hydrolyzed with consortium enzymes. Concentrations of rice straw substrate was made to 5%, 10%, 15%, and 20% (w/v) and also made 1:1, 1:2, and 1:3 volume ratio between substrate and enzymes. The results showed that the highest rate of bioethanol obtained from 10% (w/v) rice straw substrate and enzyme activity in consortium was 0.279 U/mL (xylanase), 0.329 U/mL (cellulase), and 0.024 U/mL (xylose isomerase). The hydrolyzate was fermented by Saccharomyces cerevisiae BJ1824 and produce 8.81x10-2 %(v/v) ethanol measured by Gas Chromatography (GC).

Original languageEnglish
Title of host publication1st International Conference on Neuroscience and Learning Technology, ICONSATIN 2021
EditorsArika Indah Kristiana, Ridho Alfarisi
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735443006
DOIs
Publication statusPublished - 4 Jan 2023
Event1st International Conference on Neuroscience and Learning Technology, ICONSATIN 2021 - Jember, Indonesia
Duration: 18 Sept 202119 Sept 2021

Publication series

NameAIP Conference Proceedings
Volume2679
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Conference on Neuroscience and Learning Technology, ICONSATIN 2021
Country/TerritoryIndonesia
CityJember
Period18/09/2119/09/21

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