详细信息
余甘子树皮提取物抗氧化及清除自由基活性初步研究 被引量:9
Primary Study on Antioxidative and Radical Scavenging Activities of Extracts from Phyllanthus emblica L.Bark
文献类型:期刊文献
中文题名:余甘子树皮提取物抗氧化及清除自由基活性初步研究
英文题名:Primary Study on Antioxidative and Radical Scavenging Activities of Extracts from Phyllanthus emblica L.Bark
作者:汪咏梅[1,2] 陈笳鸿[1,2] 吴冬梅[1,2] 徐曼[1,2] 吴在嵩[1,2]
第一作者:汪咏梅
机构:[1]中国林业科学研究院林产化学工业研究所;[2]国家林业局林产化学工程重点开放性实验室
年份:2008
卷号:28
期号:1
起止页码:11-15
中文期刊名:林产化学与工业
外文期刊名:Chemistry and Industry of Forest Products
收录:CSTPCD;;Scopus;CSCD:【CSCD_E2011_2012】;
基金:国家“十一五”科技支撑计划(2006BAD18B0403)
语种:中文
中文关键词:余甘子;树皮提取物;原花色素;抗氧化剂;清除自由基
外文关键词:Phyllanthus emblica L. ; bark extracts ; proanthocyanidins ; antioxidant ; radical-scavenging
分类号:TQ91
摘要:余甘子树皮提取物的主要成分为局部棓酰化的聚原翠雀定-原花青定混合物,具有强抗氧化活性的化学结构特征。试验结果表明,采用超声波强化提取、冷冻絮凝沉降和大孔树脂吸附等方法提取分离获得的目标产物对1,1-二苯基-2-苦基-肼(DPPH)自由基的清除效率平均达91.13%,略高于茶多酚;对金属离子Fe2+的络合能力达358mg/g;抑制脂质过氧化能力强于马尾松树皮提取物。研究表明余甘子树皮提取物可望进一步开发成为新型天然抗氧化及自由基清除剂。
The major component of extracts from Phyllanthus emblica L. bark is composed of partially galloylated polymeric prodelphinidins and procyanidins which indicate strong antioxidative character from their chemical structure. Experimental data showed that the target product, prepared by ultrasonic extraction and purification, could scavenge radical (e. g. DPPH, scavenging rate 91.13 %, higher than which of tea polyphenol (TP)), complex metal ions (e. g. Fe^2+ , 358 mg/g) and inhibit lipid peroxidation. This primary study results indicated that the extracts would be hopefully developed as a new sort of natural antioxidant and radical scavenging agent,
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