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Optimization of Bioethanol from Rice Husk

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Bibliographic Details
Main Author: Noor Hafizah, Mukhlis
Other Authors: Saleha Shamsudin
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2013
Subjects:
Bioethanol
Rice husk
Yeast
Biofuel
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/27525
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spelling my.unimap-275252013-08-22T01:59:31Z Optimization of Bioethanol from Rice Husk Noor Hafizah, Mukhlis Saleha Shamsudin Bioethanol Rice husk Yeast Biofuel Access is limited to UniMAP community. The first objective for this project is to study the profiling yeast by drawn the yeast growth profile. Then the second is to optimize the critical parameters in order to get high yield of bioethanol production. The production of bioethanol was produce from rice husk. The rice husk was done physical pretreatment by using grinder and molecular sieve. Then, the rice husk undergoes alkali pretreatment to remove the lignin. The lignin removal for the 250 μm of size is the highest compared to size of 750 μm and 500 μm which is 8.97 %. After that, the treated rice husk was goes enzymatic hydrolysis by using cellulase enzyme. Production of glucose from enzymatic hydrolysis produced 4.54 mg/mL of glucose. The glucose produces from enzymatic hydrolysis was further used in fermentation process. The critical parameters which are initial pH, substrate concentration and agitation speed were optimized by using Design of Expert (DOE) software with coupled Response Surface Methodology (RSM). The experiment plan was based on Central Composite Design (CCD) with 20 runs that have 6 central point. Based on the software, there found that 20 runs with different condition is the solution to achieved the high yield of bioethanol. It is found that, the optimum pH, substrate concentration, and agitation speed that produce the maximum bioethanol concentration are 3.54, 10% and 146.7 rpm respectively. The maximum bioethanol concentration obtained from the experiment is 9.347 mg/L which is slightly similar to the value predicted. 2013-08-22T01:59:31Z 2013-08-22T01:59:31Z 2012-06 Learning Object http://hdl.handle.net/123456789/27525 en Universiti Malaysia Perlis (UniMAP) School of Bioprocess Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Bioethanol
Rice husk
Yeast
Biofuel
spellingShingle Bioethanol
Rice husk
Yeast
Biofuel
Noor Hafizah, Mukhlis
Optimization of Bioethanol from Rice Husk
description Access is limited to UniMAP community.
author2 Saleha Shamsudin
author_facet Saleha Shamsudin
Noor Hafizah, Mukhlis
format Learning Object
author Noor Hafizah, Mukhlis
author_sort Noor Hafizah, Mukhlis
title Optimization of Bioethanol from Rice Husk
title_short Optimization of Bioethanol from Rice Husk
title_full Optimization of Bioethanol from Rice Husk
title_fullStr Optimization of Bioethanol from Rice Husk
title_full_unstemmed Optimization of Bioethanol from Rice Husk
title_sort optimization of bioethanol from rice husk
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2013
url http://dspace.unimap.edu.my/xmlui/handle/123456789/27525
_version_ 1643795377781997568
score 13.214268

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