MANNOSE EXTRACTION METHOD

• Main Authors: KITA Yusuke, HAIGE Ryohei, YAMADA Hirohumi, HARA Michikazu
• Format: Patent
• Language: English; French; German
• Published: 30.03.2022
• Subjects: CHEMISTRY; DERIVATIVES THEREOF; METALLURGY; NUCLEIC ACIDS; NUCLEOSIDES; NUCLEOTIDES; ORGANIC CHEMISTRY; SACCHARIDES, OTHER THAN SUCROSE, OBTAINED FROM NATURAL SOURCESOR BY HYDROLYSIS OF NATURALLY OCCURRING DI-, OLIGO- ORPOLYSACCHARIDES; SUGAR INDUSTRY; SUGARS

[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.