食品科学 ›› 2009, Vol. 30 ›› Issue (3): 43-46.doi: 10.7506/spkx1002-6630-200903008

• 基础研究 • 上一篇    下一篇

光合细菌类胡萝卜素的稳定性研究

韩永斌,刘桂玲,陈德明,吕莹爽,顾振新*   

  1. 南京农业大学 农业部农畜产品加工与质量控制重点开放实验室
  • 收稿日期:2008-01-10 修回日期:2008-05-13 出版日期:2009-02-01 发布日期:2010-12-29
  • 通讯作者: 韩永斌 E-mail:hanyongbin@njau.edu.cn
  • 基金资助:

    江苏省科技厅高技术项目(BG2004324)

Study on Stability of Carotenoids from Photosynthetic Bacteria

HAN Yong-bin,LIU Gui-ling,CHEN De-ming,LU Ying-shuang,GU Zhen-xin*   

  1. (Key Laboratory of Food Processing and Quality Control, Ministry of Agriculture, Nanjing Agricultural Universtiy,
    Nanjing 210095, China)
  • Received:2008-01-10 Revised:2008-05-13 Online:2009-02-01 Published:2010-12-29
  • Contact: HAN Yong-bin, E-mail:hanyongbin@njau.edu.cn

摘要:

本实验研究了金属离子、NaOH、光和H2O2 对光合细菌类胡萝卜素稳定性的影响。结果表明:K+、Na+、Mg2+、Al3+、Ca2+ 以及低浓度NaOH(≤ 0.01mol/L)等对光合细菌类胡萝卜素的稳定性几乎没有影响,而Fe3+、Cu2+、高浓度NaOH(≥ 0.5mol/L)以及光照等会使类胡萝卜素的稳定性显著降低(p < 0.05)。不同来源的光对类胡萝卜素的破坏程度依次为:自然光>白炽灯>日光灯>紫外灯。此外,光合细菌类胡萝卜素具有一定的耐氧化性,当过氧化氢存在时,色素发生轻微降解。

关键词: 光合细菌, 类胡萝卜素, 稳定性

Abstract:

In this study, effects of metal ion, NaOH, light and H2O2 on stability of carotenoids from photosynthetic bacteria were investigated. It was found that K+, Na+, Mg2+, Al3+, Ca2+ and NaOH with low concentration (less than 0.01 mol/L) have little effects on the stability of carotenoids, while Fe3+ , Cu2+ and NaOH with high concentration(more than 0.5 mol/L)may lead to great loss of carotenoids. The carotenoids are sensitive to light and the damage effects of lights from different sources on stability of carotenoids decrease as following: natural light > bulb light > fluorescent light > ultraviolet light. But the carotenoids are stable to H2O2, only a little carotenoids are decomposed when H2O2 exists.

Key words: photosynthetic bacteria, carotenoids, stability

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