| 摘要 |
FIELD: resin industry. ^ SUBSTANCE: method comprises consecutively performed water extraction of arabinogalactan at heating from preliminarily deresined foliferous wood, purification of extract to remove suspended and colloidal impurities, ultrafiltration-mediated concentration of extract, and isolation of desired product using spray drying of concentrate containing 40% solids. Purification is effected with aqueous solution of cationic flocculant. High purity of product is confirmed by UV, IR, and 13C NMR spectroscopic techniques. ^ EFFECT: achieved purity meeting pharmaceutical requirements. ^ 3 cl, 4 ex
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