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摘要：本实验以松油脂为原料，采用水蒸气蒸馏法提取松节油，并作为芯材，通过饱和水溶液法制备松节油-β-环糊精微胶囊。以松节油包埋率和微胶囊产率为指标，研究确定微胶囊制备的最佳工艺。并通过薄层色谱、气质、红外、扫描电镜等研究测定松节油微胶囊产品的物理化学性质。同时研究松节油微胶囊产品的抗氧化性质，初步分析微胶囊包裹对松节油的抗氧化性质的影响。结果表明：饱和水溶液法制备松节油微胶囊的最佳工艺：包合温度60℃，包合时间2.5h，β-环糊精：松节油=8:1（g：mL）；包合物形成一种新的物相，且包裹前后松节油的化学组成基本不变；松节油对ABTS和DPPH具有较强的清除能力，微胶囊产品也表现出抗氧化性能。37608
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毕业论文关键词：松节油；β-环糊精；微胶囊；抗氧化
Preparation and antioxidant activity of turpentinemicrocapsules
Abstract: It was studied on the extraction of essential oil from terebinthina of cypress by water distillation. The optimal process conditions for the turpentine microcapsules using saturated water solution method. The optimal technology of inclusion was identified respectively by the utilization ratio of turpentine and the yield of inclusion compound. And the physical and chemical properties of turpentine microcapsules through research TLC, temperament, infrared, scanning electron microscopy. Study the antioxidant properties of the turpentine microcapsulesat the same time,and preliminary analysis of the role of micro-encapsulated antioxidant properties of turpentine. The results showed thatthe optimum preparation conditions for inclusion were established as follows: inclusiontemperature was 60℃, inclusion time was 2.5h,the ratio of turpentine and β-cyclodextrin was 1:8(mL:g); a new substance was conformed ,the chemical composition of inclusion turpentine were not changed; the turpentine possessed good scavenging on DPPH and ABTS, and the microcapsules also exhibit similar antioxidant properties.
Keywords:turpentine;β- cyclodextrin; microcapsules;antioxidant
目录
1绪论 1
1.1文献综述 1
1.1.1松节油概述 1
1.1.2微胶囊制备 1
1.1.3精油的抗氧化性能研究 1
1.1.4植物精油微胶囊的制备 2
1.1.5 抗氧化性能检测 4
1.2选题意义 5
1.3实验方案 5
2 实验仪器与试剂 7
2.1 实验仪器 7
2.2 实验试剂 8
2.3试剂配制 8
3 实验内容 10
3.1松节油芯材的提取 10
3.2 松节油微胶囊的制备 10
3.2.1松节油微胶囊的制备 10
3.2.2 松节油空白回收率的测定 11
3.2.3松节油微胶囊包埋率与包合物产率的测定 11
3.2.4松节油微胶囊制备单因素实验 11
3.2.5综合评分计算方法 12
3.3松节油微胶囊的表征及性能检测 12
3.3.1松节油微胶囊的缓释实验 12
3.3.2扫描电镜法 12
3.3.3薄层色谱法 13
3.3.4红外光谱法检测 13
3.3.5品香方法 13
3.3.6 GC气相色谱法 13
3.3.7 GC-MS气质联用色谱法 13
3.4松节油及其微胶囊抗氧化检测 14
3.4.1消除DPPH能力测定 14
3.4.2消除ABTS能力测定 14
4.结果与分析 16
4.1松节油提取率结果 16