海藻多糖提取、分离纯化技术研究.docx
海藻多糖提取、分离纯化技术研究
目录
内容综述................................................3
1.1研究背景与意义.........................................3
1.2国内外研究现状.........................................4
1.3研究目标与内容.........................................5
1.4研究方法与技术路线.....................................7
海藻多糖的结构与性质....................................8
2.1海藻多糖的分类.........................................9
2.2海藻多糖的化学结构....................................11
2.3海藻多糖的物理化学性质................................12
2.4海藻多糖的生物活性....................................13
海藻多糖的提取技术.....................................15
3.1原料的选择与预处理....................................17
3.2物理提取法............................................18
3.2.1浸提法..............................................20
3.2.2超临界流体萃取法....................................21
3.2.3膜分离技术..........................................22
3.3化学提取法............................................23
3.3.1碱提取法............................................25
3.3.2酸提取法............................................26
3.3.3混合溶剂提取法......................................27
3.4生物提取法............................................29
3.4.1微生物发酵法........................................30
3.4.2酶提取法............................................31
3.5不同提取方法的比较与优化..............................32
海藻多糖的分离纯化技术.................................33
4.1沉淀法................................................36
4.2升华法................................................37
4.3膜分离法..............................................39
4.4层析法................................................40
4.4.1凝胶层析............................................42
4.4.2离子交换层析........................................43
4.4.3亲和层析............................................44
4.5电泳法................................................48
4.6其他分离纯化方法......................................49
4.7不同分离纯化方法的比较与优化..........................50
海藻多糖提取纯化工艺优化...............................52
5.1正交试验设计...............................