DiSC (direct saccharification of culms) process for bioethanol production from rice straw. Park, J., Ike, M., Arakane, M., Shiroma, R., Li, Y., Arai-Sanoh, Y., Kondo, M., & Tokuyasu, K. abstract bibtex A simple process (the direct-saccharification-of-culms (DiSC) process) to produce ethanol from rice straw culms, accumulating significant amounts of soft carbohydrates (SCs: glucose, fructose, sucrose, starch and β-1,3-1,4-glucan) was developed. This study focused on fully mature culms of cv. Leafstar, containing 69.2% (w/w of dried culms) hexoses from SCs and cellulose. Commercially-available wind-separation equipment successfully prepared a culm-rich fraction with a SC recovery of 83.1% (w/w) from rice straw flakes (54.1% of total weight of rice straw). The fraction was suspended in water (20%, w/w) for starch liquefaction, and the suspension was subjected to a simultaneous saccharification and fermentation with yeast, yielding 5.6% (w/v) ethanol (86% of the theoretical yield from whole hexoses in the fraction) after 24 h fermentation. Thus, the DiSC process produced highly-concentrated ethanol from rice straw in a one vat process without any harsh thermo-chemical pretreatments.
@article{
title = {DiSC (direct saccharification of culms) process for bioethanol production from rice straw},
type = {article},
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abstract = {A simple process (the direct-saccharification-of-culms (DiSC) process) to produce ethanol from rice straw culms, accumulating significant amounts of soft carbohydrates (SCs: glucose, fructose, sucrose, starch and β-1,3-1,4-glucan) was developed. This study focused on fully mature culms of cv. Leafstar, containing 69.2% (w/w of dried culms) hexoses from SCs and cellulose. Commercially-available wind-separation equipment successfully prepared a culm-rich fraction with a SC recovery of 83.1% (w/w) from rice straw flakes (54.1% of total weight of rice straw). The fraction was suspended in water (20%, w/w) for starch liquefaction, and the suspension was subjected to a simultaneous saccharification and fermentation with yeast, yielding 5.6% (w/v) ethanol (86% of the theoretical yield from whole hexoses in the fraction) after 24 h fermentation. Thus, the DiSC process produced highly-concentrated ethanol from rice straw in a one vat process without any harsh thermo-chemical pretreatments.},
bibtype = {article},
author = {Park, Jeung-yil and Ike, Masakazu and Arakane, Mitsuhiro and Shiroma, Riki and Li, Yuan and Arai-Sanoh, Yumiko and Kondo, Motohiko and Tokuyasu, Ken}
}
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