摘要
以脱色率和多糖保留率为指标,采用活性炭和大孔吸附树脂两种方法对车前草多糖脱色。结果表明,活性炭脱色的最佳条件为:在60℃下,加入0.75%(m/V)的活性炭,脱色30 min,在此工艺条件下脱色率为76.22%,多糖保留率为65.31%。大孔吸附树脂脱色的最佳条件是:以蒸馏水为洗脱剂,样液pH值为8.0,洗脱流速为2 mL/min,洗脱液体积为3 BV(1 BV=20 mL),在此工艺条件下脱色率为79.78%,多糖保留率为89.76%。大孔吸附树脂脱色效果优于活性炭脱色效果。
The decoloring methods with active carbon and AB-8 macroporous adsorption resin were compared for polysaccharide extracted from Plantago asiatica L was decolored by analyzing the decoloration rate and polysaccharide retention rate. The results showed that the best conditions for decoloration with active carbon were： 0.75% active carbon, decoloring temperature 60℃ and treatment time 30min, under which the decolorization rate was 76.22% and the polysaccharide retention rate was 65.31%. The best conditions for AB-8 macroporous adsorption resin were as follows： the elution solvent 3 BV （1 BV=20 mL）, flow rate 2 mL/min, and pH of polysaccharide solution 8.0, under which the decolorization rate was 79.78% and the polysaccharide retention rate was 89.76%. The decoloration with macroporous adsorption resin was better than that with active carbon.
出处
《现代食品科技》
EI
CAS
北大核心
2012年第8期1028-1030,974,共4页
Modern Food Science and Technology
关键词
车前草
多糖
脱色
活性炭
AB-8大孔吸附树脂
Plantago asiatica L
polysaccharide
decolomtion
active carbon
AB-8 macroporous adsorption resin
