Title:
METHOD FOR PRODUCING GELATIN OR CONCENTRATED GELATIN SOLUTION
Document Type and Number:
WIPO Patent Application WO/2023/191018
Kind Code:
A1
Abstract:
The present invention relates to a method for producing a gelatin or a concentrated gelatin solution, said method comprising a membrane concentration step for concentrating a gelatin solution with an ultrafiltration membrane module provided with an ultrafiltration membrane, and a heat concentration step for further concentrating the gelatin solution with heat after the membrane concentration step. In the membrane concentration step, operation is started such that the flow rate ratio (vp/vf) of the flow rate vp of the filtrate and the flow rate vf of the gelatin solution is 0.020-0.15 when the ratio (μf/μp) of viscosity μf of the gelatin solution and the viscosity μp of the filtrate is greater than or equal to 1.5.
Inventors:
KOZAKI YOICHIRO (JP)
KOBAYASHI KENTARO (JP)
KANAMORI SATOKO (JP)
KOBAYASHI KENTARO (JP)
KANAMORI SATOKO (JP)
Application Number:
PCT/JP2023/013447
Publication Date:
October 05, 2023
Filing Date:
March 30, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
A23J3/06; B01D61/14; B01D61/18; B01D61/22; B01D63/02; B01D69/00; B01D69/02; C08H1/00
Foreign References:
| JPS57209975A | 1982-12-23 | |||
| JPS60226897A | 1985-11-12 | |||
| JPH09121819A | 1997-05-13 | |||
| CN110052171A | 2019-07-26 | |||
| CN1442441A | 2003-09-17 | |||
| CN111362360A | 2020-07-03 | |||
| CN103084066A | 2013-05-08 | |||
| CN101982222A | 2011-03-02 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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