Title:
METHOD FOR PRODUCING POLYPHENOL-CONTAINING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/210733
Kind Code:
A1
Abstract:
The present invention provides a technical means for efficiently producing a polyphenol-containing composition from grass-based biomass. More specifically, the present invention provides a method for producing a polyphenol-containing composition from grass-based biomass, the method including: (1) a step in which an extraction liquid is obtained by bringing grass-based biomass into contact with an alkaline aqueous solution; (2) a step in which the pH of the extraction liquid obtained in step (1) is adjusted to a pH of 3.2-4.5, and the extraction liquid is reacted with an enzyme having cellobiohydrolase activity and xylanase activity to obtain an enzyme-reacted solution; and (3) a step in which a clarified liquid containing a polyphenol-containing composition is obtained by performing solid-liquid separation of the enzyme-reacted solution obtained in step (2).
Inventors:
ASAHI YUKA (JP)
MINAMINO ATSUSHI (TH)
ITOU SATORU (TH)
MINAMINO ATSUSHI (TH)
ITOU SATORU (TH)
Application Number:
PCT/JP2022/015547
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
CELLULOSIC BIOMASS TECH CO LTD (TH)
CELLULOSIC BIOMASS TECH CO LTD (TH)
International Classes:
C12P7/22; C07G1/00
Domestic Patent References:
| WO2017154955A1 | 2017-09-14 | |||
| WO2006013530A1 | 2006-02-09 |
Foreign References:
| JP2013220067A | 2013-10-28 | |||
| JP2016520093A | 2016-07-11 | |||
| JP2017530701A | 2017-10-19 |
Other References:
ZHAO RUI; YUN MIN-SOO; SHIROMA RIKI; IKE MASAKAZU; GUAN DI; TOKUYASU KEN: "Integration of a phenolic-acid recovery step in the CaCCO process for efficient fermentable-sugar recovery from rice straw", BIORESOURCE TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 148, 12 September 2013 (2013-09-12), AMSTERDAM, NL , pages 422 - 427, XP028734829, ISSN: 0960-8524, DOI: 10.1016/j.biortech.2013.09.014
SELIG, M.J. ; KNOSHAUG, E.P. ; ADNEY, W.S. ; HIMMEL, M.E. ; DECKER, S.R.: "Synergistic enhancement of cellobiohydrolase performance on pretreated corn stover by addition of xylanase and esterase activities", BIORESOURCE TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 99, no. 11, 1 July 2008 (2008-07-01), AMSTERDAM, NL , pages 4997 - 5005, XP022606313, ISSN: 0960-8524, DOI: 10.1016/j.biortech.2007.09.064
SELIG, M.J. ; KNOSHAUG, E.P. ; ADNEY, W.S. ; HIMMEL, M.E. ; DECKER, S.R.: "Synergistic enhancement of cellobiohydrolase performance on pretreated corn stover by addition of xylanase and esterase activities", BIORESOURCE TECHNOLOGY, ELSEVIER, AMSTERDAM, NL, vol. 99, no. 11, 1 July 2008 (2008-07-01), AMSTERDAM, NL , pages 4997 - 5005, XP022606313, ISSN: 0960-8524, DOI: 10.1016/j.biortech.2007.09.064
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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