[关键词]
[摘要]
目的 分离纯化党参多糖(CPP)并对其结构及抗氧化活性进行研究。方法 加热回流法提取制备党参粗多糖,经中空纤维超滤实验装置分离获得多糖分级,采用体内、外方法考察多糖的抗氧化活性。结果 CPP经分离后获得3个级分CPP1、CPP2、CPP3,体外抗氧化实验表明CPP3对DPPH、羟自由基和超氧阴离子的清除能力最强;体内实验显示,高剂量CPP3(400 mg/kg)对D-半乳糖所致衰老小鼠具有明显的保护作用。结论 CPP具有明显的抗氧化功能,本研究为党参多糖功能性食品的开发提供了理论依据。
[Key word]
[Abstract]
Objective To isolate and purify the Codonopsis pilosula polysaccharide (CPP) and investigate its structure characterization and anti-oxidant activity. Methods CPP was extracted by heating reflux, crud polysaccharide was refined and then isolated by hollow fiber ultrafiltration experimental device, the anti-oxidant activity of polysaccharides was studied by in vivo and in vitro methods. Results CPP was purified and obtained three ingredients named CPP1, CPP2, and CPP3. The anti-oxidant activity in vitro showed that CPP3 had the strongest scavenging ability on DPPH, hydroxyl radical, and superoxide anion. In vivo study showed that high dose group of CPP3 had obvious protective effect on the mice induced by D-galactose. Conclusion CPP has obvious anti-oxidant function. This study provides the theoretical basis for the development of CPP functional food.
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[基金项目]
山东省中医药科技发展计划项目(2013-227)