Process for the production of alginate having a high...

Details Process for the production of alginate having a high... Process for the production of alginate having a high...

2002-11-21

2010-11-23

Jiang, Shaojia Anna (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S123100, C536S124000, C536S128000, C514S054000

Reexamination Certificate

active

07838641

ABSTRACT:
The present invention concerns a process for the production of alginate having a mannuronic acid-content of at least 80 mole %, wherein said alginate is produced by: a) adding algae or seaweed to water under stirring, in a ratio of 1:3 to 1:20 respectively, at a pH above about 2.3, while maintaining a temperature above 20° C. for at least 30 minutes, and b) separating said alginate from the solid material of the suspension in a) by a standard separation method such as filtration, and optionallyc) recovering said alginate from the solution.

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Database WPI, Week 200272, Derwent Publications Ltd., London, Great Britain; Class D13, AN 2002-668951, & JP 2002119226 A (Shiga A), Apr. 23, 2002.
FMC Alginates, General Technology, FMC Biopolymer, 2000.
A. Haug, et al., Correlation between Chemical Structure and Physical Properties of Alginates,Acta Chem. Scand., 21(3), 768-778 (1967).
KELCO/ALGIN/hydrophilic derivatives of alginic acid for scientific water control, 2nded., 1976, pp. 7 and 8.

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