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Extraction of vanillin following bioconversion of rice straw and its optimization by response surface methodology

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Nurika, Irnia, Suhartini, Sri, Azizah, Nurul and Barker, Guy C. (2020) Extraction of vanillin following bioconversion of rice straw and its optimization by response surface methodology. Molecules, 25 (24). e6031. doi:10.3390/molecules25246031

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Official URL: https://doi.org/10.3390/molecules25246031

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Abstract

Value-added chemicals, including phenolic compounds, can be generated through lignocellulosic biomass conversion via either biological or chemical pretreatment. Currently vanillin is one of the most valuable of these products that has been shown to be extractable on an industrial scale. This study demonstrates the potential of using rice straw inoculated with Serpula lacrymans, which produced a mixture of high value bio-based compounds including vanillin. Key extraction conditions were identified to be the volume of solvent used and extraction time, which were optimized using response surface methodology (RSM). The vanillin compounds extracted from rice straw solid state fermentation (SSF) was confirmed through LC-ESI MS/MS in selective ion mode. The optimum concentration and yield differed depending on the solvent, which was predicted using 60 mL ethyl acetate for 160 min were 0.408% and 3.957 μg g−1 respectively. In comparison, when ethanol was used, the highest concentration and yields of vanillin were 0.165% and 2.596 μg g−1. These were achieved using 40 mL of solvent, and extraction time increased to 248 min. The results confirm that fungal conversion of rice straw to vanillin could consequently offer a cost-effect alternative to other modes of production.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Q Science > QK Botany
S Agriculture > SB Plant culture
T Technology > TP Chemical technology
Divisions: Faculty of Science > Life Sciences (2010- )
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Vanillin , Lignocellulose , Straw, Straw -- Utilization , Extraction (Chemistry), Serpula lacrymans, Biomass conversion
Journal or Publication Title: Molecules
Publisher: MDPI
ISSN: 1420-3049
Official Date: 19 December 2020
Dates:
DateEvent
19 December 2020Published
17 December 2020Accepted
Volume: 25
Number: 24
Article Number: e6031
DOI: 10.3390/molecules25246031
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: ** From MDPI via Jisc Publications Router ** History: accepted 17-12-2020; pub-electronic 19-12-2020. ** Licence for this article: https://creativecommons.org/licenses/by/4.0/
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDKementerian Riset Teknologi Dan Pendidikan Tinggi Republik Indonesiahttp://dx.doi.org/10.13039/501100009509
Global Challenge Research FundUK Research and Innovationhttp://dx.doi.org/10.13039/100014013
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