摘要
以沙枣为研究对象,选用不同溶剂对沙枣花、沙枣叶、沙枣果肉、沙枣核进行提取,测定提取液对DPPH自由基的抗氧化能力。实验结果表明,不同溶剂提取物均对DPPH自由基有清除能力,清除能力大小顺序为80%乙醇>纯水>石油醚。沙枣果肉在石油醚中清除能力较好,半清除率浓度为(32.33±0.8)mg/mL;沙枣核在80%乙醇中清除能力较好,半清除率浓度为(0.21±0.01)mg/mL;沙枣花在水中清除能力较好,半清除率浓度(1.82±0.06)mg/mL。
Abstract.Choosing elaeagnus angustifolia as the object of study, DPPH free radical scavenging activity of the extracts from flowers, leaves, pulp and nuclear of elaeagnus angustifolia by different solvents determined.The results showed that all solvents extracts had DPPH free radical scavenging ability.80% ethanol 〉 pure water 〉 petroleum ether.Elaeagnus angustifolia pulp had a better scavenging ability in petroleum ether, and its ICsowas （32.33 _＋0.8）mg/mL.Elaeagnus angustifolia core had a better scavenging ability in 80% ethanol, and its ICsowas （0.21 _＋0.01 ）mg/mL.Elaeagnus angustifolia flowers had a better scavenging ability in pure water, and its IC^owas （ 1.82 ＋ 0.06） mg/mL.
出处
《食品工业科技》
CAS
CSCD
北大核心
2012年第6期117-119,共3页
Science and Technology of Food Industry
基金
塔里木大学校长基金(TDZKZD1007)
关键词
沙枣
抗氧化
DPPH自由基
清除能力
elaeagnus angustifolia
antioxidant
DPPH free radical
scavenging ability
