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METHOD FOR PRODUCING A STARCH HYDROLYSATE WITH A LOW POLYMOLECULAR INDEX; STARCH HYDROLYSATE MADE THIS AND ITS APPLICATION IN PERITONEAL DIALYSIS
METHOD FOR PRODUCING A STARCH HYDROLYSATE WITH A LOW POLYMOLECULAR INDEX; STARCH HYDROLYSATE MADE THIS AND ITS APPLICATION IN PERITONEAL DIALYSIS
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机译:低分子量指数淀粉水解产物的制备方法淀粉水解物的制备及其在腹膜透析中的应用
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摘要
Prodn. of starch hydrolysates with a low `polymolecularity index' (PI = Mw/Mn) comprises: (a) subjecting a waxy starch milk to acid hydrolysis to give a hydrolysate with a dextrose equivalent (DE) of 8-15; (b) opt. further hydrolysing the acid hydrolysate with bacterial alpha -amylase to give a hydrolysate with a DE of 11-18; (c) chromatographing the hydrolysate on macroporous cation-exchange resins in alkali(ne earth) metal form; and (d) collecting the hydrolysate excluded during the chromatography step. Also claimed is a waxy starch hydrolysate, opt. hydrogenated or hydrolysed, which is completely soluble in water and has a PI 2.8 (esp. 2.5), a Mw of 8000-22,500 (esp. 12,000-20,000) and a Mn 8000, where Mn = 1/Ä (the fractional wt. of each mol.)/(the mol. wt. of each mol.)
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