Potential use of vetiver grass for cellulolytic enzyme production and bioethanol production

Subsamran, Khajeewan; Mahakhan, Polson; Vichitphan, Kanit; Vichitphan, Sukanda; Sawaengkaew, Jutaporn

doi:10.1016/j.bcab.2018.11.023

Cited by 33 publications

(9 citation statements)

References 37 publications

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“…Additionally, vetiver grass, a lignocellulosic-rich material, was also used with cellulolytic enzymes for bioethanol production. The highest sugar contents from enzymatic hydrolysis and bioethanol production were 21 g/L and 6 g/L, respectively [ 48 ].…”

Section: Resultsmentioning

confidence: 99%

Optimization of Bioethanol Production from Enzymatic Treatment of Argan Pulp Feedstock

et al. 2021

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Argan pulp is an abundant byproduct from the argan oil process. It was investigated to study the feasibility of second-generation bioethanol production using, for the first time, enzymatic hydrolysis pretreatment. Argan pulp was subjected to an industrial grinding process before enzymatic hydrolysis using Viscozyme L and Celluclast 1.5 L, followed by fermentation of the resulting sugar solution by Saccharomyces cerevisiae. The argan pulp, as a biomass rich on carbohydrates, presented high saccharification yields (up to 91% and 88%) and an optimal ethanol bioconversion of 44.82% and 47.16% using 30 FBGU/g and 30 U/g of Viscozyme L and Celluclast 1.5 L, respectively, at 10%w/v of argan biomass.

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Section: Resultsmentioning

confidence: 99%

Optimization of Bioethanol Production from Enzymatic Treatment of Argan Pulp Feedstock

et al. 2021

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“…Vetiver grass that is rich lignocellulosic material was used with celluloytic enzymes, such as carboxymethyl cellulose and β-glucosidase for bioethanol production. The highest sugar content from enzymatic hydrolysis and bioethanol production was obtained with 21 g/L and around 6 g/L, respectively [ 118 ]. Corn straw was investigated as a raw material in simultaneous saccharification and fermentation, which was performed as the simultaneous enzymatic hydrolysis of cellulose and obtained sugars, where a complex of enyzmes was used, such as cellulase, arabanase, b-glucanase, hemicellulose, and xylanase.…”

Section: Enzymatic Hydrolysismentioning

confidence: 99%

Bioethanol Production by Enzymatic Hydrolysis from Different Lignocellulosic Sources

2021

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As the need for non-renewable sources such as fossil fuels has increased during the last few decades, the search for sustainable and renewable alternative sources has gained growing interest. Enzymatic hydrolysis in bioethanol production presents an important step, where sugars that are fermented are obtained in the final fermentation process. In the process of enzymatic hydrolysis, more and more new effective enzymes are being researched to ensure a more cost-effective process. There are many different enzyme strategies implemented in hydrolysis protocols, where different lignocellulosic biomass, such as wood feedstocks, different agricultural wastes, and marine algae are being used as substrates for an efficient bioethanol production. This review investigates the very recent enzymatic hydrolysis pathways in bioethanol production from lignocellulosic biomass.

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“…Por outro lado, a fermentação por fungos embora seja amplamente recomendada aos dois tipos de processo, sólido e submerso (SUBSAMRAN et al, 2019), é mais adequado para FES, por oferecer menor teor de umidade e sustentar o crescimento de fungos em materiais lignocelulósicos (YOON et al, 2014).…”

Section: Fundamentação Teóricaunclassified

Fermentação Em Estado Sólido E Submerso Para Produção De Celulase: Revisão Bibliográfica

Silva¹,

Martins²,

Kupski³

et al. 2021

Inovação, Gestão E Sustentabilidade Na Agroindústria

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Os processos fermentativos em estado sólido (FES) e submerso (FS) consistem na degradação de glicose ou de nutrientes por meio de microrganismos, como fungos, bactérias e leveduras. Estes tipos de fermentação são amplamente aplicados para a produção de enzimas, como a celulase. A alta eficiência do processo fermentativo para a produção de celulase está diretamente ligada as condições adequadas de cultivo. O presente trabalho teve como objetivo realizar uma revisão para identificar as condições de fermentação utilizadas na Fermentação em Estado Sólido (FES) e Fermentação Submersa (FS) para a produção da celulase. Foram selecionados um total de 21 artigos, todos entre os anos de 2018 a 2020, onde foram analisados fatores: microrganismos, substratos, pH, umidade, temperatura e agitação. As seguintes ferramentas de dados bibliográficas foram utilizadas: Scielo, Science Direct, Scopus e Web of Science. Além disso as referências foram gerenciadas pelo software de banco de dados "EndNote" para a exclusão por duplicidade. A pesquisa dos artigos foi realizada com base nas palavras-chave: cellulase OR cellulolytic, Solid-State fermentation, Submerged fermentation e Production OR Synthesis. Os microrganismos que mais se destacaram foram Aspergillus nigger e Trichoderma reesei para as FES e FS, respectivamente. Os substratos mais empregados foram os resíduos agroindustriais, evidenciandose o farelo do trigo. As condições de umidade, temperatura, pH e agitação tiveram diferenças tanto para FES quanto para FS, isso justifica pela diversidade de microrsganismo utilizados. Os dados demonstraram que existe uma grande quantidade de condições a serem trabalhadas e que muitas vezes as mesmas condições podem ser utilizadas para os dois tipos de fermentação para a produção de celulase.

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Potential use of vetiver grass for cellulolytic enzyme production and bioethanol production

Cited by 33 publications

References 37 publications

Optimization of Bioethanol Production from Enzymatic Treatment of Argan Pulp Feedstock

Optimization of Bioethanol Production from Enzymatic Treatment of Argan Pulp Feedstock

Bioethanol Production by Enzymatic Hydrolysis from Different Lignocellulosic Sources

Fermentação Em Estado Sólido E Submerso Para Produção De Celulase: Revisão Bibliográfica

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