食品科学 ›› 2002, Vol. 23 ›› Issue (2): 24-27.

• 基础研究 • 上一篇    下一篇

微量金属元素对乌桕类可可脂氧化稳定性影响研究(Ⅱ)

 李彦萍, 高荫榆, 何小立, 陈才水   

  1. 南昌大学食品科学与工程系
  • 出版日期:2002-02-15 发布日期:2012-02-13

Study on Effect of Trace Metals to the Oxidant Stability of CTCBE(Ⅱ)

 LI  Yan-Ping, GAO  Yin-Yu, HE  Xiao-Li, CHEN  Cai-Shui   

  • Online:2002-02-15 Published:2012-02-13

摘要: 油脂中的微量金属元素是影响油脂氧化稳定性的重要因素之一。为评价金属元素对乌桕类可可脂(CTCBE)氧化稳定性的影响,本研究用电感藕合等离子体质谱仪(ICP-MS)对CTCBE中微量金属元素进行分析,并用烘箱贮藏法评介金属螯合剂EDTA二钠、柠檬酸及不同抗氧化剂对CTCBE的抗氧化效果。结果表明,CTCBE中的这些微量元素,大部分含量较低,但Cu、Fe活泼金属元素偏高;CTCBE易氧化酸败,金属螯合剂EDTA二钠及柠檬酸均具有延缓氧化的功效,且与抗氧化剂复配后效果更好。

关键词: 微量金属元素, 乌桕可可脂, 螯合剂, 氧化稳定性

Abstract: Tracemetals inoils areanimportant factorofoils’ oxidizationstability.Toevaluate theeffectoftracemetals(Cu?Fe?Coetc)to the quality of CTCBE,trace metals were determinedby ICP -MS,and several antioxidant effects were compared with oven method.The r esults showed that most of these meta ls in CTCBEwere lowconcentration,b ut active Cu?Fe were of highconcentration.CTCBE was easily oxidized.Metal combination Na 2 (EDTA)and lemon acid could defer oxidation,andthey hadbetter effect if composed of antioxid ant.

Key words: Trace metals , CTCBE , Antioxidant , Oxid ization stability