METHOD TO PRODUCE ARABINOGALACTANE Russian patent published in 2011 - IPC A23L1/30 C08B37/00 

FIELD: food industry.

SUBSTANCE: invention relates to food industry. According to proposed method, extraction of larch wood ground down to chips size is carried out with water in the mode of continuous mixing for 30 minutes at the temperature of 20-25°C. At the same time water duty makes 1:5 to weight of absolutely dry raw materials, then aqueous extract is filtered and concentrated by method of ultrafiltration using acetate-cellulose membranes. Produced concentrate is treated while mixed with aqueous solution of flocculant, consumption of which makes 0.03 g/l, and solution is cleaned from mechanical admixtures by microfiltration. Target product is extracted by spray drying from concentrate, and it contains at least 99% of arabinogalactane and not more than 1% of dihydroquercetin.

EFFECT: method makes it possible to produce arabinogalactane with insignificant quantity of admixtures.

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