食品科学 ›› 2008, Vol. 29 ›› Issue (8): 351-354.

• 工艺技术 • 上一篇    下一篇

牡丹籽油的精炼及理化特性变化分析

白喜婷,朱文学,罗磊, 周秋香, 刘镇镇, 郭呈明   

  1. 河南科技大学食品与生物工程学院
  • 出版日期:2008-08-15 发布日期:2011-08-26

Refinement of Peony Seed Oil and Analysis of Its Physicochemical Properties

BAI  Xi-Ting, ZHU  Wen-Xue, LUO  Lei, ZHOU  Qiu-Xiang, LIU  Zhen-Zhen, GUO  Cheng-Ming   

  1. College Food and Bioeningeering,Henan University of Science and Technology,Luoyang 471003,China
  • Online:2008-08-15 Published:2011-08-26

摘要: 本实验主要探讨了牡丹籽油的精炼过程及精炼过程中理化特性的变化。实验结果表明,牡丹籽油经水化脱胶和碱炼脱酸后,胶体含量和酸价明显降低,经测定脱胶油中的磷脂含量为0.017g/100g,脱酸油的酸价为0.33mgKOH/g。牡丹籽油采用活性白土二次脱色效果较好,脱色率高,所得产品油透明澄清、颜色为淡黄色,并且脱色过程使过氧化物含量降低,同时也使磷脂含量降到很低水平。油脂精炼过程中碘价、皂化价和折光指数基本不变,对脂肪酸组成成分及含量影响不大。

关键词: 牡丹籽油, 精炼, 理化特性, 分析

Abstract: Refining process of peony seed oil and changes of its physicochemical characteristics during the process were analyzed in this study. The results showed that the gum content and acid value are reduced obviously after hydration degumming and alkali refining deacidification,and the lecithoid content in degummed oil and acid value are 0.017 g/100g and 0.33 mg KOH/g respectively in deacidified oil. Decoloring rate is high under double-decoloring process of activated clay. The deacidified oil is clear and yellowy. The peroxid was reduced during the decoloring process,and lecithoid is cut down to lower level at the same time. Iodine value,saponification value and refraction index are not changed ultimately in refining process,and the components and contents of fatty acid suffer little effects.

Key words: peony seed oil, refining, physicochemical properties, analysis