CAJ | 학술논문

文章以瓜蒌皮为原料，采用响应面分析法对微波辅助提取瓜蒌皮多糖提取条件进行优化，并从还原力、· O H和NO2-·清除率等方面对瓜蒌皮多糖的抗氧化活性进行了研究。结果表明，当料液比为1∶40、微波提取时间为15 min、微波提取功率为450 W时，瓜蒌皮多糖得率最高，为2.52％。当瓜蒌皮多糖溶液质量浓度为1.2 g/L时，其还原力为0.54，对· O H的清除率为72.8％，对NO2-·的清除率为35.6％。因此，瓜蒌皮多糖是一种天然的抗氧化剂。
문장이과루피위원료，채용향응면분석법대미파보조제취과루피다당제취조건진행우화，병종환원력、· O H화NO2-·청제솔등방면대과루피다당적항양화활성진행료연구。결과표명，당료액비위1∶40、미파제취시간위15 min、미파제취공솔위450 W시，과루피다당득솔최고，위2.52％。당과루피다당용액질량농도위1.2 g/L시，기환원력위0.54，대· O H적청제솔위72.8％，대NO2-·적청제솔위35.6％。인차，과루피다당시일충천연적항양화제。
Trichosanthes kirilow ii peel were used to extract polysaccharides by microwave-assisted ex-traction .The optimum microwave-assisted extraction conditions were obtained through response sur-face analysis .The antioxidant activity of Trichosanthes kirilowii peel polysaccharides was evaluated by total reducing power ,hydroxyl radical scavenging assay and NO2 - scavenging assay .The results showed that the optimal extraction conditions were as followed :the material-to-liquid ratio was 1∶40 ,the extraction time was 15 min ,and the microwave power was 450 W .Under these extraction conditions , the rate of polysaccharides yield were 2.52% .When its solution concentration was 1.2 g/L ,the re-ducing power ,the hydroxyl radical scavenging rate and the NO2 - scavenging rate of the polysaccha-rides were 0.54(OD) ,72.8% and 35.6% respectively .Trichosanthes kirilowii peel polysaccharide was a kind of natural antioxidant .