超声波辅助氧化法制备多醛基海带胶  

PREPARATION OF MULTIALDEHYDE SODIUM ALGINATE BY ULTRASONIC ASSISTED OXIDATION

作　　者：高健[1,2] 许同桃[3] 

机构地区：[1]连云港市教育局,江苏连云港222005 [2]江苏省海洋资源开发研究院,江苏连云港222001 [3]连云港职业技术学院医药与化学工程学院,江苏连云港222006

出　　处：《海洋湖沼通报》2013年第4期143-148,共6页Transactions of Oceanology and Limnology

基　　金：江苏省海洋资源开发研究院开发课题(JSIMR11B01);江苏省高校科研成果产业化推进项目(JHB2011-77)资助

摘　　要：以高碘酸钠为氧化剂,采用超声波辅助氧化法制备多醛基海带胶。通过考察氧化剂用量、反应时间以及反应温度筛选适合的工艺条件;使用盐酸羟胺-氢氧化钠电位滴定法测定其氧化度,并采用菲林试剂以及红外波谱等方法对多醛基海带胶进行结构表征。实验结果表明,在最适合工艺条件下,即溶剂乙醇与去离子水的体积比为1:2.5、高碘酸钠与海带胶的质量比为88%、超声作用时间30min、反应温度控制在5℃、反应时间为4h;海带胶氧化度为68%,多醛基海带胶收率60%。Using ultrasonic assisted oxidation method multialdehyde sodium alginate were prepared by sodium alginate and sodium periodate. The reaction conditions were discussed by the reactant mixture ratios, reactant time and temperatures. The oxidation degrees of the title compound were tested by potentiometric titration method of hydroxylamine and sodium hydroxide, and the structure of the title compound were characterized by fehling reagent and 1R spectrum. The most suitable process conditions are solvent ethanol and deionized water volume ratio of 1：2. 5, sodium periodate and Sodium alginate mass ratio of 88%, ultrasound time 30min, reaction temperature 5 ℃, reaction time was 4 hours. Sodium alginate oxidation degree is 68~/00, the yield of multialdehyde sodium alginate is 60%.

关 键 词：多醛基海带胶 超声 氧化 制备 

分 类 号：R931[医药卫生—生药学]