文档介绍：2012届毕业生
毕业论文
题目: 富硒糙米中硒蛋白提取的研究及其工艺设计
院系名称: 国际教育学院专业班级: 油脂F0803
学生姓名: 陶源学号: 200848960201
指导教师: 潘丽教师职称: 讲师
2012年5月25日
摘要
糙米是稻谷去壳后的产品。糙米比精致白米的营养价值要高很多。硒是哺乳动物必须的微量元素,人体也不例外。硒能在一定程度上提高机体免疫能力,对人体有着非常重要的作用。硒还能消除人体内重金属的积累,具有解除重金属中毒的功能,是部分重金属的天然解毒剂。但是无机硒是有剧毒的,硒的生物学功能主要是以硒蛋白的形式表现的。糙米在发芽时可以吸收外源无机硒,并将其转化为有机硒,从而被人们所吸收利用。这就是为什么发芽糙米被大家所关注的主要原因。不同的浸泡温度和时间会对糙米的吸水量造成影响,不同的硒浓度处理会对糙米的发芽率和发芽后的营养成分造成影响,从而影响硒蛋白的提取含量和质量。所以对不同的浸泡温度和时间和不同的硒浓度处理的研究是有很必要的。所以,本实验通过研究不同的浸泡温度与时间对糙米吸水量的影响、不同硒浓度处理对糙米发芽率的影响和不同硒浓度对糙米发芽后营养成分的影响来最终达到对富硒糙米中硒蛋白提取工艺的优化
关键词: 糙米硒硒蛋白工艺
Title The study and process design of extracting selenoprtein form brown rice which is rice in selenium
Abstract
Brown rice is the produce of the paddy which is shelled. Brown rice has more nourishment than fine rice. Selenium is the necessary trace element of the mammal, the human body is no exception of course. Selenium can enhance the immunity of human body in some degree, which is of great importance to us. Selenium has the function of lifting the heavy metal poisoning because it can also eliminate the heavy metals which are accumulated in the human body, which makes it a natural antidote of some heavy metals. But the anic selenium is highly toxic, the biological function of selenium is mainly reflected in selenoprotein. The brown rice can absorb anic selenium outside when germination and transform it anic selenium, which can be utilized by human body. That’s why the germinated brown rice draws great attentions. When the brown rice is soaking, different temperature and time will influence the water absorption of it. Different selenium concentration may affect the germination rate and the nutrients of the brown rice after germination, thus may affect the contents and quality of selenoprotein. So the study of different temperature, time and selenium concentration is necessary. In this study, we can finally optimize the craft of extracting selenoprotein from the brown rice which is rich in selenium through the research that d