大米食味因子与电化学信号的相关性研究  

Study on the correlation between rice flavor factors and electrochemical signals

作　　者：杨柳 许甫生 苏忠军 吴淑清 YANG Liu;XU Fu-sheng;SU Zhong-jun;WU Shu-qing(School of Food Science and Engineering,Changchun University,Changchun 130022,Jilin,China;School of Life Sciences,Changchun Science and Technology University,Changchun 130025,Jilin,China;Zhejiang Liziyuan Food Co.,Ltd.,Jinhua 321031,Zhejiang,China)

机构地区：[1]长春大学食品科学与工程学院,吉林长春130022 [2]长春科技学院生命科学学院,吉林长春130025 [3]浙江李子园食品股份有限公司,浙江金华321031

出　　处：《粮食与油脂》2019年第10期18-24,共7页Cereals & Oils

基　　金：吉林省教育厅“十三五”(JJKH20171048KJ);吉林省教育厅项目(2019LY526L50);长春大学春蕾基金项目(2019JBC26L36)

摘　　要：采用基于方波伏安法的装置采集大米电化学信号,对电化学信号进行小波去噪后,对电化学信号和大米食味因子进行相关性分析。结果显示:Au、Pd、Cu、Pb、Cd、In、Ni、Fe、W、Ti的电化学信号均同大米直链淀粉含量负相关,同支链淀粉含量和支直比正相关;而Al电极在某些电位点处同直链淀粉含量正相关,某些电位点处呈负相关,对支链淀粉和支直比情况类似。Electrochemical signals from rice were collected by square-wave voltammetric device.After removing the noise of electrochemical signal with wavelet denoising method,correlation analysis between electrochemical signal and rice flavor factor was studied.Results showed that the denoised electrochemical signals collected by Au,Pd,Cu,Pb,Cd,In,Ni,Fe,W,Ti were negative correlation with rice amylose content,and were positive correlation with amylopectin and the ratio of amylopectin to amylose.The denoised electrochemical signals collected by Al were negative correlation with rice amylose at some potential points and were positive correlation at some other potential points.It was the same result as the amylopectin and the ratio of amylopectin to amylase.

关 键 词：大米食味因子 电化学信号 直链淀粉 支链淀粉 

分 类 号：TS201.1[轻工技术与工程—食品科学]