Process for the production and extraction of polysaccharides fro

Details Process for the production and extraction of polysaccharides fro Process for the production and extraction of polysaccharides fro

1988-09-26

1990-03-06

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536124, 435 72, 435 74, 435101, 435100, C07H 106, C07G 1700, C12P 1904, C12P 1944

Patent

active

049067460

ABSTRACT:
Process for the production and extraction of polysaccharides from a porphyridium cruentum culture and apparatus for performing the process.
This production and extraction process comprises a stage of concentrating the polysaccharides consisting of leaving the culture medium (1) in a photoreactor (22) exposed to sunlight under stagnant conditions and at ambient temperature, leading to the formation of a polysaccharide-rich cream (23) and recovering said cream by skimming, a stage (24) of heating the concentrate obtained at a temperature between 60.degree. and 100.degree. C., a stage of separating the solid and liquid phases formed (26), a stage (30) of precipitating the polysaccharides contained in the liquid phase and a stage (16) of drying the precipitate obtained.

REFERENCES:
patent: 4087936 (1978-05-01), Savins et al.
patent: 4417415 (1983-11-01), Cysewski et al.
A Process for the Production of Polysaccharides from Microalga, Daniel B. Anderson et al., Biotechnology and Bioengineering Symp. No. 15 (1985) pp. 533-547.

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