Title:
METHOD FOR PRODUCING CARBOXYMETHYLATED STARCH WITH SUPPRESSED SWELLING
Document Type and Number:
Japanese Patent JP2018009076
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for improving physical properties of carboxymethylated starch by a simpler physical treatment without involving introduction of functional groups.SOLUTION: Carboxymethylated starch with suppressed swelling is obtained by adjusting pH of a raw material, carboxymethylated starch, to 8 or less, followed by a heat treatment. The heat treatment is preferably performed in dry conditions of from 30 to 200°C or in wet conditions of from 25°C to a temperature lower than the gelatinization temperature of the raw material, carboxymethylated starch. Further, the pH is adjusted to 8 or less by addition of an acid containing one or two or more kinds selected from hydrochloric acid, sulfuric acid, nitric acid, acetic acid, citric acid, lactic acid, and phosphoric acid.SELECTED DRAWING: Figure 1
Inventors:
MURAMATSU DAISUKE
TAKAGUCHI HITOSHI
YAMAMOTO TOSHIHIRO
TAKAGUCHI HITOSHI
YAMAMOTO TOSHIHIRO
Application Number:
JP2016137874A
Publication Date:
January 18, 2018
Filing Date:
July 12, 2016
Export Citation:
Assignee:
JAPAN MAIZE PROD
International Classes:
C08B31/10; A21D2/18; A21D13/00; A23G9/04; A23L5/00; A23L9/20; A23L23/00
Attorney, Agent or Firm:
Shigeru Matsui
Takeo Miyao
Takeo Miyao