食品中山梨酸成分的分析检测分析研究 食品管理专业VIP免费

类型：□毕业设计说明书□毕业论文题目：食品中山梨酸成分的分析检测学生姓名：指导教师：专业：时间：年月目录摘要……………………………………………………………………1Abstract…………………………………………………………………….21、绪论……………………………………………………………………..31.1山梨酸介绍........................................................................................31.2使用范畴.......................................................................................….31.3用途...............................................................................................…51.4检测方法.........................................................................................…62、实验部分.......................................................……………………………72.1试验原理.................................................................................................................72.2实验仪器与试剂....................................................................................................72.3实验方法.................................................................................................................83、方法研究....................................................................................................83.1吸收光谱和测量波长的选择…………………………………………………….93.2氧化反应温度........................................................................................................103.3显色酸度.................................................................................................................113.4显色剂用量.............................................................................................................113.5工作曲线................................................................................................................124、样品测定...................................................................................................134.1样品溶液的制备和测定方法................................................................................134.2精密度实验............................................................................................................144.3样品分析................................................................................................................155、结论.............................................................................................................16参考文献.........................................................................................................18致谢.................................................................................................................19[DOCUMENTTITLE]摘要食品中添加的山梨酸含量过高，如果消费者长期服用这种食品，很大程度上会危害人体健康，因此,食品中山梨酸的含量是是至关重要的。本文采用分光光度[1-2]法测定食品中山梨酸的含量。以双氧水-硫酸溶液为山梨酸氧化体系，得到氧化产物丙二醛与硫代巴比妥酸进一步进行显色反应。关键词：分光光度法，山梨酸，危害，过氧化氢-硫酸;AbstractTheexcessiveacidcontentinfoodistoohigh,ifconsumerstakethisfoodforalongtime,itwillbeharmfultohumanhealth,therefore,thecontentofacidinfoodisveryimportant.Inthispaper,thecontentofacidinfoodwasdeterminedbySpectrophotometrywith[1-2]method.Theoxidationsystemofthehydrogenperoxidesulfuricacidsolutionwasusedastheoxidationproductoftheoxidationproducts,andt...