Process for producing agar-agar from an algae extraction juice

Details Process for producing agar-agar from an algae extraction juice Process for producing agar-agar from an algae extraction juice

1986-07-07

1988-10-25

Schofer, Joseph L.

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

Organic compounds

Carbohydrates or derivatives

C08B 3704

Patent

active

047805340

ABSTRACT:
A process for making agar-agar from algae extraction juices and comprising: (a) placing the extraction juice in the presence of a cationic ion exchange resin conditioned into the Na.sup.+ form, then placing it (b) in the presence of an anion exchange resin conditioned into the Cl.sup.- and/or SO.sup.--.sub.4 form, then (c) optionally placing the juice in the presence of a cation ion exchange resin conditioned into the OH.sup.- form, (d) thereupon gelling the juice, (e) extracting the agar-agar from the obtained gel, and where called for (f) treating the obtained powder by placing it in contact with an ozone-loaded carrier gas. Such a process allows producing at reduced costs high-grade agar-agar, useful in particular in the medical, pharmaceutical and bioengineering fields.

REFERENCES:
patent: 1399359 (1921-12-01), Matsuoka
patent: 2439964 (1944-07-01), Byrne et al.
patent: 3856569 (1974-12-01), Strong
patent: 4178439 (1979-12-01), Ayers et al.

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