改性大豆磷脂.docVIP

第五届“挑战杯”河南省大学生 课外学术科技作品竞赛 河南工业大学参赛作品 Green surfactant-modified soybean phospholipids Development 类 别：自然科学类学术论文 指导师作 者学 院 摘 要 项目研究以大豆油精炼的废弃物-水化油脚经脱水制成的浓缩磷脂为原料，在乳酸的催化下，与H2O2发生反应，磷脂和甘油酯结构上双键基团被氧化生成羟基化合物，并对反应加入的催化剂、改性剂用量、反应温度、时间等工艺技术及影响因素进行了探讨。由于羟基化改性使其羟基增加，提高了磷脂的亲水性，成为在冷水中也能乳化分散溶解的磷脂产品。 试验结果表明：羟基化改性制得了HLB值范围较为宽广的磷脂产品，质量达到国外同类产品的指标水平，扩大了产品应用范围，缩小了在磷脂产品开发上与发达国家之间的差距。 关键词：大豆浓缩磷脂；改性；乳化性 Abstract Soybean concentrated phospholipids, as raw material for this project study, is made by the waste of the soybean oil refining-hydration oil foots through dehydration. In the process, the phospholipids react with H2O2 catalyses by lactic acid .Then the double bonds are oxidized and the phospholipids and triglyceride are changed into hydroxyl compounds correspondingly. It is also studied the technology and the affecting factors such as the adding amount of catalyst and modifier , the reaction temperature ,time and so on. Because of hydroxyl- modification, the hydroxyl amount and the hydrophilic of the phospholipids are increased, which makes the lecithin products have the ability of emulsion and dispersion even in the cold water. Test results show that hydroxyl-modification can make more broad scope of the phospholipids HLB value products with the quality reaching to the index level of the foreign similar products, expanding the using scope of products, narrowing the gap between China and developed countries in phospholipids products development. Keywords:Soybean concentrated phospholipids;transfunction;the function of emulsion 目 录 0.前言………………………………………………………………1 1.材料与方法………………………………………………7 1.1 实验原理……………………………………………………7 1.2 原料与试剂……………………………………………………8 1.3 主要仪器……………………………………………8 1.4主要实验方法…………………………………………8 1.5 试验方法……………………………………………8 1.5.1 工艺流程…………………………………………8 1.5.2 工艺技术说明………………………………………9 2. 结果分析与讨论………………………………………10 2.1 羟基化改性大豆磷脂制备过程影响因素的研究………10 2.2 正交实验因素及水平的选取和设计………………… 14 2.3 羟基化改性磷脂研究试验结果……………………… 16 2.4 磷脂碘价与半价时间之间的关系………………18 3. 结论…………………………………………………18 参考文献……………………