METHOD OF PRODUCING PECTIN AND CELLULOSE FROM BEET PULP Russian patent published in 2016 - IPC C08B37/00 

FIELD: chemistry.

SUBSTANCE: method for production of pectin and cellulose from beet pulp involves hydrolysis of milled beet pulp in the presence of hydrochloric acid while heating, squeezing the solid phase, multistage solid phase extraction, precipitation of pectin from liquid phases, followed by purification, dehydration and drying of pectin and cellulose. From raw beet pulp the pectin substances are extracted at the first stage by the first acid extraction with 0.3% solution of hydrochloric acid at pH~1.6-1.8 for 1 h at 90°C using hydromodulus 1:200. Second stage involves the second acid extraction with 1.2% solution of hydrochloric acid at 90°C using hydromodulus 1:200 during 4 hours. Obtained washed coarse cellulose of beet pulp after the second acid extraction is subjected to single-step alkaline extraction with 0.5% solution of sodium hydroxide at 90°C during 1 h using hydromodulus 1:100; for further treatment of cellulose from residues of pectin substances, hemicellulose, residual lignin and lipids.

EFFECT: invention enables to obtain cellulose and pectin in series from fresh beet pulp subject to complete processing.

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