UV-vis Absorbance Spectra of Soy Oils Bleached with Rice Hull Ashes and Clays

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Chun-I Lin¹  Chu-Yuan Chen¹  Hsi-Kuei Chen² 

[1]Department of Chemical Engineering, National Taiwan University of Science and Technology

[2]Department of Chemical Engineering, Hwa Hsia College of Technology and Commerce

关键词: Absorbance Spectra;    Clays;    Rice Hull Ashes;    Soy Oil;   

DOI  :  10.1252/jcej.35.587

来源: Maruzen Company Ltd

【 摘 要 】

References(10)Cited-By(1)Soy oil was bleached with different rice hull ashes and clays. UV-vis absorbance spectra of bleached oils were presented. The spectra indicated that the bleaching with rice hull ashes or clays were of physical adsorption. It also revealed that the bleaching with rice hulls ashed in nitrogen stream was generally more efficient than those with rice hulls ashed in air stream. Acid activated ashes showed higher bleaching capability than unactivated ones. Moreover, unwashed activated ashes were found to be more effective in bleaching than washed ones.

【 授权许可】

Unknown