碱解玉米芯制备阿魏酸和对香豆酸  

Production of Ferulic Acid and p-cumaric Acid from Corn Cob by Alkaline Hydrolysis

作　　者：夏文静[1] 李飞[1] 常钰[1] 蒋雅静[1] 沈燕[1] 

机构地区：[1]南京师范大学泰州学院生物技术与化学工程学院,江苏泰州225300

出　　处：《安徽农业科学》2014年第29期10302-10305,共4页Journal of Anhui Agricultural Sciences

基　　金：泰州市社会发展项目(TS201337)

摘　　要：[目的]利用碱解农林废弃物制备阿魏酸和对香豆酸。[方法]对4种农林废弃物(花生壳、玉米秸秆、小麦秸秆、玉米芯)进行比较,发现玉米芯最适合用于提取阿魏酸和对香豆酸。考察不同氢氧化钠浓度、固液比(玉米芯/碱液)、提取温度、提取时间对玉米芯中阿魏酸和对香豆酸提取量的影响。[结果]提取玉米芯中阿魏酸的最佳工艺条件为:氢氧化钠浓度为0.5 mol/L,固液比(玉米芯/碱液)为1∶30 g/ml,提取温度为50℃,提取时间为2.5 h。在此条件下,阿魏酸的提取量最高为14.05 mg/g,对香豆酸的提取量为21.12 mg/g。[结论]研究可为提高玉米芯的附加值利用提供依据。The ferulic acid and p-cumaric acid were produced from agricultural residues by alkaline hydrolysis. [Method]Corn cob was found to be the best through the comparison of alkaline hydrolysis of peanut shell,cornstalk,wheat straw and corncob. Effects of different sodium hydroxide concentration,solid-liquid ratio,extraction temperature and time on ferulic acid; p-cumaric acid were investigated.[Result]Optimal hydrolysis conditions（NaOH concentration of 0.5 mol/L,solid/liquid ratio of 1∶30 g/ml,hydrolysis temperature of 50 ℃,hydrolysis time of 2. 5 h） ensured the production of hydrolysates with relatively high contents of both ferulic acid（14. 05 mg /g） and p-coumaric acid（21. 12 mg /g）. [Conclusion]The study can provide basis for improving added value utilization of corn cob.

关 键 词：阿魏酸 对香豆酸 玉米芯 碱水解 

分 类 号：S609.9[农业科学—园艺学]