《微波辅助黑糯玉米芯中色素提取工艺的研究》-毕业论文.docVIP

PAGE 1 精品 微波辅助黑糯玉米芯中色素提取工艺的研究 院 别、专 业 生命科学学院 生物工程 研 究 方 向 生 物 技 术 学 生 姓 名 学 号 06154304021 指导教师姓名 指导教师职称 副教授 2010年 6月23 日 微波辅助黑糯玉米芯中色素提取工艺的研究 摘要：以黑糯玉米芯中色素提取物得率为考察指标，在微波和超声波辅助下，对影响黑糯玉米芯中色素提取的因素进行探讨，并采用正交试验方法，对工艺进行优化。结果表明：黑糯玉米芯中色素提取最佳条件为提取剂为 0.1 mol/L HCl∶ 95% 乙醇 =1∶1（V:V），微波功率 150 W，提取时间150 S，料液比 1:25，此时色素提取率为 94.12%。 关键词：黑糯玉米芯；色素；正交设计；微波辅助；工艺条件优化 The Research on the optimal extraction Process of Pigments From Black Glutinous Corn Cob By Microwave - assisted techniqueHui Er-jing (School of Life Science,Huaibei Normal University) Tutored by Sheng Wei Abstract: The pigments in black glutinous corn cob was extracted by microwave and super-wave assistant .The influences of microwave power , extracting time and rate of material to liquid on extracting rate were investigated and the technology conditions were optimized by orthogonal experiment. The results show that the optimal extracting conditions for microwave assistant extraction are as follows: solvent mixture 0.1 mol /L HCl and 95% ethanol (50%∶ 50% , v/v) , microwave power 150W, extraction time 150 s, and material to liquid ratio 1∶ 25 . extraction give the best result with pigment extraction rate of 94 .12%. Key words: black glutinous waxy corn; pigment; orthogonal experiment ; microwave - assisted extraction; technologic condition optimization 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc263283317 引言 PAGEREF _Toc263283317 \h 1 HYPERLINK \l _Toc263283318 1 材料与方法 PAGEREF _Toc263283318 \h 2 HYPERLINK \l _Toc263283319 1.1 材料与设备 PAGEREF _Toc263283319 \h 2 HYPERLINK \l _Toc263283323 1.2 实验方法 PAGEREF _Toc263283323 \h 2 HYPERLINK \l _Toc263283324 1.2.1 色素提取工艺 PAGEREF _Toc263283324 \h 2 HYPERLINK \l _Toc263283325 1.2.2 超级黑糯玉米芯色素提取单因素研究 PAGEREF _Toc263283325 \h 3 HYPERLINK \l _Toc263283326 1.2.3 正交实验 PAGEREF _Toc263283326 \h 3 HYP