摘要： 本实验以干燥香蕉皮粉末为原料，采用浸提法提取香蕉皮粗多糖和香蕉皮粗多酚，并通过单因素试验确定香蕉皮粗多糖和粗多酚的最优提取条件。实验结果表明，香蕉皮粗多糖的最佳提取条件为：以水为提取剂，料液比1：70，80℃水浴搅拌4h；粗多酚的最佳提取条件为：以50％乙醇为提取剂，料液比1：20，50℃水浴搅拌1h；并且用DPPH法、羟自由基法和超氧阴离子法检测了香蕉皮多糖和香蕉皮多酚的抗氧化性质，以及检测了香蕉皮多糖和香蕉皮多酚的还原力；实验结果表明在DPPH法和羟自由基法检测抗氧化的时候清除率与香蕉皮多糖和香蕉皮多酚的浓度成正比，Vc的清除率最大，超氧阴离子法对香蕉皮多糖和香蕉皮多酚没有影响。用牛津杯法对香蕉皮多糖和香蕉皮多酚进行了抑菌实验检测，实验结果表明香蕉皮多糖和香蕉皮多酚对于牛津杯抑菌没有影响。最后还对香蕉皮多糖和香蕉皮多酚做了保湿性能的检测等。77931

毕业论文关键词： 香蕉皮；多糖；多酚 

Comprehensive development and application of banana peel

Abstract: In this experiment to dry banana powder as raw material, adopting extraction to extract the banana skin coarse polysaccharide and polyphenol banana skin rough, and through the orthogonal experiment to determine banana skin coarse polysaccharide and optimum extraction conditions of crude polyphenol。 The experimental results show that the optimum extraction conditions of banana skin coarse polysaccharide is: with water as extraction agent, the material liquid than 1:7 reached 0 ℃ water bath mixing 5 h; Coarse optimum extraction conditions of polyphenols as follows: 50% ethanol as extraction agent, the material liquid than 1:20, 50 ℃ water bath mixing 1 h; And DPPH, hydroxyl radical and superoxide anion detection of banana skin polysaccharide and banana peel polyphenols antioxidant properties, and tested the banana peel polysaccharides and reducing power of banana peel polyphenols; The experimental results show that the DPPH and hydroxyl free radical method to detect the antioxidant clearance and banana peel is directly proportional to the concentration of the polysaccharide and banana peel polyphenols, Vc clearance, the largest super oxygen anion method of banana skin polysaccharide and banana peel polyphenols have no effect。 By Oxford cup method of banana skin polysaccharide and banana peel polyphenols bacteriostatic experiment test, the experimental results show that banana peel polysaccharides and banana peel polyphenols has no effect for Oxford cup bacteriostasis。 Finally, the banana peel polysaccharide and banana peel polyphenols are tested for moisturizing properties。

Keywords: banana peel; Polysaccharides; polyphenols

目录

1 绪论 1

1。1 香蕉皮的概述 1

1。2 香蕉皮多糖和香蕉皮多酚的简介 1

1。2。1 香蕉皮多糖的简介 1

1。3 国内外对香蕉皮多糖和香蕉皮多酚的提取研究 1

1。4 本课题研究的内容、目的以及意义 2

1。4。1 本课题研究的内容 2

1。4。2 本课题研究的目的和意义 2

2。材料与方法 3

2。1 材料 3

2。1。1 实验原料 3

2。1。2 实验试剂 3

2。1。3 实验器材 3

2。2 检测方法 3