期刊论文

中文

粮食与油脂

1008-9578

2014

07

51-53

“十二五”科技部支撑计划课题（2011BAD02B00）；

本校为第一机构

该文研究了分光光度法与罗维朋比色计在测定芝麻油色泽时的相互关系,确定了分光光度法的优势。对不同脱色程度的6种芝麻油的罗维朋红值与特定波长下的吸光度进行回归分析。实验结果表明:芝麻油在罗维朋红值特征吸收波长535 nm处的吸光度与罗维朋红值有线性关系,其相关系数为0.993 1,且随着罗维朋红值的下降,吸光度也呈下降趋势。分光光度法可以分辨出罗维朋比色计无法识别的色泽差异,从而为油脂脱色工艺创造了良好的条件优化依据。

This paper studies the relationship between spectrophotometer method and Lovibond color indicator,then,identified the advantages of spectrophotometer method. Take value of Lovibond red and absorbance value in a specific wavelength of six different levels of bleaching sesame oil for regression analysis.The result showed that there is a linear relationship between the absorbing value at 535nm of Lovibond red＆#39;s absorbing wavelength and the value of Lovibond red. The regressive coefficient is 0.986. With the decline in value of Lovibond red,th...