摘要：本实验主要采用邻苯三酚法和水杨酸法，研究了松节油及其组分对超氧自由基和羟基自由基的抗氧化活性。结果表明：对超氧自由基的清除性能：1%柏木油>1%异长叶烷酮>1%迷迭香油 >7。6mmol/LBHT标准溶液>1%迷芳樟醇>1%丁香酚>1%桉叶素。对羟基自由基的清除性能：1%柏木油>1%异长叶烷酮>1%迷迭香油>1%芳樟醇>1%丁香酚>1%桉叶素。比较发现，异长叶烷酮在两种体系中均表现出极佳的抗氧化性能，其次为迷迭香油；芳樟醇、丁香酚对羟基自由基具有较好的抗氧化性，柏木油在超氧系统中表现出极佳地抗氧化性能，而桉叶素对两种自由基的清除能力均较弱。柏木油、迷迭香油与异长叶烷酮具有协同抗氧化能力。其中，柏木油与迷迭香油的协同抗氧化能力高。复配后的柏木油香精具有较好地清除超氧自由基的能力。77564

毕业论文关键词：松节油香精；超氧自由基；羟基自由基；协同抗氧化

Study on Scavenging Performance and Synergistic Antioxidant Activity of a Kind of Turpentine Fragrance to Superoxide and Other Free Radicals

Abstract: In this study, the antioxidation activity of turpentine and its components on superoxide radical and hydroxyl radical were studied by pyrogallol method and salicylic acid method。 The results showed that the scavenging performance of superoxide free radicals: 1% cedar oil> 1% isophorone ketone> 1% rosemary oil> 7。6mmol / LBHT standard solution> 1% lindenol> 1% eugenol> 1% Eucalyptus。 Scavenging of hydroxyl radicals: 1% cedar oil> 1% isophorone ketone> 1% rosemary oil> 1% linalool> 1% eugenol> 1% eucalyptus。 The results showed that the heterologous longan ketone exhibited excellent antioxidant activity in the two systems, followed by rosemary oil。 Linalool and eugenol had better antioxidant properties to hydroxyl radicals。 Superoxide system showed excellent antioxidant properties, and eucalyptus on the two free radical scavenging ability are weak。 Cedar oil, rosemary oil and synergistic antioxidant capacity。 Among them, cedar oil and rosemary oil synergistic antioxidant capacity。 After the combination of cedar oil fragrance has a better ability to remove superoxide free radicals。

Keywords: Turpentine fragrance; superoxide radical; hydroxyl radical; synergistic antioxidant

目录

1绪论 1

1。1论文综述 1

1。1。1松节油概述 4

1。1。2松节油的性质 5

1。1。3松节油的应用 6

1。1。4松节油提取 6

1。1。5松节油抗氧化性能研究 7

1。1。6天然精油抗氧化研究 9

1。1。7植物精油抗氧化性能检测 10

1。1。8精油组分之间协同抗氧化性能研究 10

1。2选题意义 12

1。3实验方案 12

2 实验仪器与试剂 13

2。1实验仪器 13

2。2实验试剂 13

2。3试剂配制 13

3 实验内容 14

3。1松节油提取 14

3。2考察松节油香精抗氧化性能 15

3。2。1超氧自由基清除方法 15