摘要
以樟树叶片为试材,通过L9(34)正交实验,研究了水溶性多糖的最佳提取工艺和抗氧化活性。结果表明:以水为提取溶剂,料液比1∶110(g/mL),温度80℃,提取2 h的条件下提取2次,多糖提取效果较好。在此组合条件下四季干叶片多糖含量分别为:93.8、77.00、83.35、116.55 mg/g。樟树叶片水溶性粗多糖在一定浓度范围内具有较强的清除过氧化氢能力,清除羟自由基、DPPH自由基和还原能力较弱;抗氧化能力不如同浓度的VC。
Taking leaves of camphor tree as test material,through L9（34）orthogonal experiment,the extraction method of the water-soluble polysaccharides and antioxidation activity were studied.The results showed that the ratio of sample to water was 1∶110,the temperature of extraction was 80℃,the time of extraction was 2 hours and extracting two times.The contents of polysaccharides in leaves of four seasons were respectively 93.8,77.00,83.35 and 116.55 mg/g.The water-soluble coarse polysaccharides had higer scavenging ability to H2O2,but lower to hydroxyl radical,DPPH free radica and restoring ability in a certain range of concentration.The antioxidant activity was not as good as VC.
出处
《北方园艺》
CAS
北大核心
2010年第24期70-73,共4页
Northern Horticulture
关键词
樟树
多糖
提取
抗氧化活性
camphor tree
polysaccharides
extraction
antioxidant activity
