【摘要】 以多糖得率为指标,研究不同料液比、温度、时间等因素对菠萝多糖得率的影响,结果表明:影响多糖得率的因素主次分别为温度>时间>料液比。水浸提法最优工艺条件为:温度100℃,时间3h,料液究表比明1∶2,0菠,在萝此粗糖条具件有下清多除糖羟得自率由达基5.能2%力。,采菠用萝水粗杨多酸糖比浓度色为法研12究m菠g/m萝l时粗清多除糖率清达除羟90%自以由上基。的效果,研更多还原

【Abstract】 Hot water extraction technology for crude polysaccharide in pineapple peel and pineapple polysaccharide’s ability to scavenge hydroxyl radicals were studied. Effects of different factors such as solid-liquid ratio, temperature and time on the yield of polysaccharide were measured. Results showed that the factors influencing extraction efficiency were as follows: temperature > time > solid-liquid ratio.and the optimal conditions for the water extraction technology were 100 ℃, 3 hours and 1∶20 solid-liquid ratio. The yield of polysaccharide reached 5.2% under the optimal condition. When the concentration of crude pineapple polysaccharide was 12 mg/ml, the eliminating rate was up to 90%. Research showed that crude pineapple polysaccharide has the ability to eliminating hydroxyl radicals and the scavenging rate was up to 90% at the concentration of 12 mg/ml.更多还原