Autoxidation Kinetics for Polyunsaturated Acylglycerols.

• MINEMOTO Yasumasa

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• ISHIDO Eiichiro

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• ADACHI Shuji

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• MATSUNO Ryuichi

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

抄録

Autoxidative processes of mono- and trilinolein and mono- and trilinolenin were observed at different temperatures. Rate expression of the autocatalytic type was applicable to the entire autoxidative process of mono- and trilinolein at any temperature. The rate expression could also be applied to the first-halves of autoxidation of mono- and trilinolenin, although the latter halves did not obey the expression but first-order kinetics. The rate constants for each substrate were evaluated at different temperatures, and the apparent activation energy and the frequency factor were estimated. From these two parameters obtained here and reported previously, it was demonstrated that the enthalpy-entropy compensation held in autoxidation of fatty acids, their ethyl esters and acylglycerols.

収録刊行物

• Food Science and Technology Research

  Food Science and Technology Research 5 (1), 104-107, 1999

  公益社団法人 日本食品科学工学会

キーワード

• autoxidation
• acylglycerol
• kinetics
• enthalpy-entropy compensation

詳細情報

• CRID: 1390001204454681600
• NII論文ID: 10013198043
• NII書誌ID: AA11320122
• DOI: 10.3136/fstr.5.104
• ISSN: 18813984
• ISSN: 13446606
• ISSN: http://id.crossref.org/issn/13446606
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可