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Effects of acids pre-treatment on the microbial fermentation process for bioethanol production from microalgae

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dc.citedby62
dc.contributor.authorPhwan C.K.en_US
dc.contributor.authorChew K.W.en_US
dc.contributor.authorSebayang A.H.en_US
dc.contributor.authorOng H.C.en_US
dc.contributor.authorLing T.C.en_US
dc.contributor.authorMalek M.A.en_US
dc.contributor.authorHo Y.-C.en_US
dc.contributor.authorShow P.L.en_US
dc.contributor.authorid57203090094en_US
dc.contributor.authorid57192980692en_US
dc.contributor.authorid39262519300en_US
dc.contributor.authorid55310784800en_US
dc.contributor.authorid21739800800en_US
dc.contributor.authorid55636320055en_US
dc.contributor.authorid57192371616en_US
dc.contributor.authorid47861451300en_US
dc.date.accessioned2023-05-29T07:24:29Z
dc.date.available2023-05-29T07:24:29Z
dc.date.issued2019
dc.descriptionAcetic acid; Algae; Energy utilization; Ethanol; Fermentation; Microorganisms; pH; Process control; Sulfuric acid; Bio-ethanol production; Carbohydrate content; Commercial productions; Micro-algae; Microbial fermentation process; Pre-Treatment; Pretreatment methods; Reducing sugars; Bioethanol; biomass; carbohydrate; chemical bonding; concentration (composition); ethanol; fermentation; microalga; microbiologyen_US
dc.description.abstractBackground: Microalgae are one of the promising feedstock that consists of high carbohydrate content which can be converted into bioethanol. Pre-treatment is one of the critical steps required to release fermentable sugars to be used in the microbial fermentation process. In this study, the reducing sugar concentration of Chlorella species was investigated by pre-treating the biomass with dilute sulfuric acid and acetic acid at different concentrations 1%, 3%, 5%, 7%, and 9% (v/v). Results: 3,5-Dinitrosalicylic acid (DNS) method, FTIR, and GC-FID were employed to evaluate the reducing sugar concentration, functional groups of alcohol bonds and concentration of bioethanol, respectively. The two-way ANOVA results (p < 0.05) indicated that there was a significant difference in the concentration and type of acids towards bioethanol production. The highest bioethanol yield obtained was 0.28 g ethanol/g microalgae which was found in microalgae sample pre-treated with 5% (v/v) sulfuric acid while 0.23 g ethanol/g microalgal biomass was presented in microalgae sample pre-treated with 5% (v/v) acetic acid. Conclusion: The application of acid pre-treatment on microalgae for bioethanol production will contribute to higher effectiveness and lower energy consumption compared to other pre-treatment methods. The findings from this study are essential for the commercial production of bioethanol from microalgae. � 2019 The Author(s).en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo191
dc.identifier.doi10.1186/s13068-019-1533-5
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85073892870
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85073892870&doi=10.1186%2fs13068-019-1533-5&partnerID=40&md5=75a52eb040475f62ddc15ed5e2c09c8a
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/24551
dc.identifier.volume12
dc.publisherBioMed Central Ltd.en_US
dc.relation.ispartofAll Open Access, Gold, Green
dc.sourceScopus
dc.sourcetitleBiotechnology for Biofuels
dc.titleEffects of acids pre-treatment on the microbial fermentation process for bioethanol production from microalgaeen_US
dc.typeArticleen_US
dspace.entity.typePublication
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