微波/磷钨杂多酸协同作用降解玉米秸秆的研究  

Synergistic effect degradation of corn straw by microwave/phosphotungstic heteropoly acid

作　　者：牟莉 付垚 代硕 佟奇 MU Li;FU Yao;DAI Shuo;TONG Qi(Food Science and Engineering College of Changchun University,Changchun 130022,Jilin,China)

机构地区：[1]长春大学食品科学与工程学院,吉林长春130022

出　　处：《粮食与油脂》2022年第5期31-34,82,共5页Cereals & Oils

基　　金：吉林省教育厅项目(JJKH20210616KJ);长春大学秋实基金培育项目(ZKQ202004)。

摘　　要：采用微波加热与磷钨杂多酸协同工艺,对玉米秸秆降解工艺条件进行研究。经过单因素、正交试验分析,以及对微波降解和常规条件下液化残渣的傅里叶变换红外吸收光谱(fourier transform infrared absorption spectroscopy,FT-IR)和扫描电镜(scanning electron microscope,SEM)表征讨论,确定玉米秸秆在微波条件下适宜的降解条件为磷钨杂多酸质量浓度5.0 g/L、反应温度90℃、反应时间50 min,在此条件下玉米秸秆的降解率为46.5%,比常规加热条件下的玉米秸秆降解效果好。The process conditions of corn straw degradation were investigated by using microwave heating coupled with phosphotungsten heteropolyacid phase.After single-factor and orthogonal analysis,as well as fourier transform infrared absorption spectroscopy(FT-IR)and scanning electron microscope(SEM)characterization of the liquefied residues under microwave degradation and conventional conditions were discussed.The suitable degradation conditions of corn straw under microwave conditions were:the mass concentration of phosphotungstic heteropoly acid 5.0 g/L,reaction temperature of 90℃and reaction time of 50 min,The degradation rate of corn stover was obtained as 46.5%,which was better than that of corn stover under conventional heating conditions.

关 键 词：玉米秸秆 微波 降解 磷钨杂多酸 协同作用 

分 类 号：TS210.1[轻工技术与工程—粮食、油脂及植物蛋白工程]