What question did this study set out to answer?

To determine the extent to which free phenolic acids and phenolic esters are released during hydrothermal pretreatment of rice straw and rice husk biomass.

June 11, 2018Biotechnology for BiofuelsOpen Access

Release of cell wall phenolic esters during hydrothermal pretreatment of rice husk and rice straw

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Authors

JWJia WuMacquarie University SCSamuel R. A. CollinsUniversity of British Columbia AEAdam EllistonNorwich Research Park

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Implication

Laboratory study reveals release of cell wall phenolic esters during hydrothermal pretreatment of rice husk and straw, suggesting downstream risks for microbial fermentation.

Key Points

To determine the extent to which free phenolic acids and phenolic esters are released during hydrothermal pretreatment of rice straw and rice husk biomass.
Subjected rice straw and rice husk to hydrothermal pretreatments across a severity range of 1.57 to 5.45.
Characterized insoluble residues using FTIR spectroscopy and UV autofluorescence.
Quantified simple phenolics and diferulic acids in raw biomass and pretreatment liquors before and after saponification.
Hydrothermal pretreatment solubilized hemicellulose, enriched crystalline cellulose and lignin in insoluble residues, and extinguished cell wall UV autofluorescence.
Pretreatment-liberated phenolics accumulated in liquid fractions at millimolar levels exclusively as phenolic esters rather than free acids, with degradation observed at elevated severities.
Rice husk possessed higher coumaric acid and lower ferulic and diferulic acid concentrations than rice straw, correlating with differing cell wall recalcitrance.

Cite This Study

Wu et al. (2018) studied this question.

synapsesocial.com/papers/6a939c260d47ea57beb84d36 https://doi.org/10.1186/s13068-018-1157-1

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Implication

Laboratory study reveals release of cell wall phenolic esters during hydrothermal pretreatment of rice husk and straw, suggesting downstream risks for microbial fermentation.

Release of cell wall phenolic esters during hydrothermal pretreatment of rice husk and rice straw

Discussion

Member takes

Implication

Key Points

Cite This Study

Release of cell wall phenolic esters during hydrothermal pretreatment of rice husk and rice straw

Discussion

Member takes

Implication

Key Points

Cite This Study

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