MANNOSE EXTRACTION METHOD - FUTAMURA KAGAKU KK

Title:

MANNOSE EXTRACTION METHOD

Document Type and Number:

WIPO Patent Application WO/2019/220937

Kind Code:

A1

Abstract:

[Problem] To provide a mannose extraction method by which it is possible to very easily extract high-purity mannose from a plant-based raw material by performing a 2-stage hydrolysis treatment on the plant-based raw material. [Solution] Mannose is extracted from a plant-based raw material having been subjected to: a first hydrolysis step S1 in which a plant-based raw material M1 and a first acid catalyst A1, which is a weak acid or a diluted strong acid, are mixed and heated; a separation step S2 in which a reaction product M2 obtained from the first hydrolysis step is separated and recovered; and a second hydrolysis step S3 in which the reaction product obtained from the separation step and a second acid catalyst A2, which is a weak acid, a diluted strong acid, a strong acid, or a solid acid, are mixed and heated.

Inventors:

HARA MICHIKAZU (JP)
KITA YUSUKE (JP)
HAIGE RYOHEI (JP)
YAMADA HIROHUMI (JP)

Application Number:

PCT/JP2019/018003

Publication Date:

November 21, 2019

Filing Date:

April 26, 2019

Export Citation:

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Assignee:

FUTAMURA KAGAKU KK (JP)
TOKYO INST TECH (JP)

International Classes:

C13K13/00; C07H3/02

Foreign References:

JP2000070000A	2000-03-07
JP2017000120A	2017-01-05
JP2004159659A	2004-06-10
JP2010022267A	2010-02-04
JP2001352936A	2001-12-25
JPH0552200B2	1993-08-04
JP2011132187A	2011-07-07
JP2017000120A	2017-01-05
JPS5528036B2	1980-07-24

Other References: