食品科学 ›› 2010, Vol. 31 ›› Issue (13): 132-135.doi: 10.7506/spkx1002-6630-201013031

• 基础研究 • 上一篇    下一篇

药桑色素稳定性研究

李文娟1,雍晓华2,王 斌3,周 静1,*   

  1. 1.石河子大学化学化工学院
    2.新疆油田公司技术检测中心 3.新疆新源县第二中学
  • 收稿日期:2009-04-27 出版日期:2010-07-01 发布日期:2010-12-29
  • 通讯作者: 周静 E-mail:zhoujing_xj@163.com

Stability of Pigment from Morus nigra Linn.

LI Wen-juan1 YONG Xiao-hua2 WANG Bin3 ZHOU Jing1,*   

  1. 1. School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China 2. Technology Detection Centre of
    Xinjiang Oil Field Corporation, Kelamayi 834000, China 3. The Second Middle School of Xinyuan, Xinyuan 835800, China
  • Received:2009-04-27 Online:2010-07-01 Published:2010-12-29
  • Contact: ZHOU Jing E-mail:zhoujing_xj@163.com

摘要:

从新疆药桑中提取药桑色素,并对其稳定性进行研究。结果表明:药桑色素易溶于水、醇等极性溶剂,不溶于石油醚、苯等非极性溶剂;在酸性条件下稳定,见光不稳定;药桑色素对H2O2、亚硫酸钠及亚硫酸氢钠敏感,吸光度随着其添加水平的增加显著降低;金属离子Na+、K+、Mg2+、Mn2+对药桑色素几乎没有影响,Al3+、Fe3+对药桑色素有显著的影响;常用食品添加剂山梨酸、VC、NaCl对药桑色素都有一定程度的增色效应,而苯甲酸钠对药桑色素有一定的减色效应。

关键词: 药桑, 色素, 稳定性

Abstract:

The pigment extracted from Morus nigra Linn. from Xinjiang was evaluated for its stability. The pigment was soluble in polar solvents such as water and ethanol, and insoluble in non-polar solvents such as petroleum ether and benzene. It was stable in acidic media and had no light stability. In addition, the pigment was sensitive to hydrogen peroxide, sodium sulfite and sodium bisulfite. Metal ions such as Na+, K+, Mg2+ and Mn2+ had almost no effect on the stability of the pigment; however, Al3+ and Fe3+ displayed an obvious effect on its stability. Moreover, common food additives including sorbic acid, vitamin C and sodium chloride exhibited a certain hyperchromic effect, whereas sodium benzoate exhibited a certain hypochromic effect.

Key words: Morus nigra Linn., pigment, stability

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