| 多花野牡丹红色素的提取及其稳定性研究 |
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| 引用本文： | 苏燕评 陈郑镔 张良 陈炳华 刘剑秋. 多花野牡丹红色素的提取及其稳定性研究[J]. 植物学报, 2003, 20(3): 336-341 |
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| 作者姓名： | 苏燕评 陈郑镔 张良 陈炳华 刘剑秋 |
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| 作者单位： | （福建师范大学生物工程学院 福州 350007） |
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| 摘 要： | 本文对多花野牡丹（Melastoma affine）果实胎座的色素进行了理化性质的探讨，对光、温度、氧化还原介质、7种金属离子、葡萄糖、蔗糖、苯甲酸钠对色素稳定性的影响进行了研究。结果表明，该色素为水溶性花青苷类色素，它在60 ℃以下稳定性较好，对光的耐受性较差。色素在酸性条件下稳定性好，耐还原性也较好，但耐氧化性较差。7种金属离子中，Fe3+、Cu2+、Mn2+、Zn2+对色素有明显降解作用，而Na+、Mg2+、Al3+对色素稳定性较好并有不同程度的护色作用。葡萄糖、蔗糖、苯甲酸钠对色素无不良影响。
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| 关 键 词： | 多花野牡丹 天然色素 提取 稳定性 花青苷 |
| 收稿时间： | 2002-10-10 |
| 修稿时间： | 2002-12-30 |
Extraction and Tests on Stability of Red Pigment from Melastoma affine |
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| SU Yan-Ping CHEN Zheng-Bin ZHANG Liang CHEN Bing-Hua LIU Jian-Qiu. Extraction and Tests on Stability of Red Pigment from Melastoma affine[J]. Bulletin of Botany, 2003, 20(3): 336-341 |
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| Authors: | SU Yan-Ping CHEN Zheng-Bin ZHANG Liang CHEN Bing-Hua LIU Jian-Qiu |
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| Affiliation: | (Bioengineering College, Fujian Normal University, Fuzhou 350007) |
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| Abstract: | The paper reports the preliminary study on the feasibility of red pigment of Melastoma affine being used as a new type of natural food pigment. It was tested that the effects of light, temperature, pH value, oxide-reducing medium, 7 kinds of metal ions, and 3 kinds of food additives on stability of the pigment. The results showed that the pigment belongs to water-soluble anothocyanins. It is stable below 60 ℃ and pH<6 but sensitive to light intensity and oxidant. Fe3+, Cu2+, Mn2+, Zn2+ evidently degrade the pigment, but Na+,Mg2+, Al3+, glucose, sucrose and sodium benzoate have no harmful effect on it. |
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| Keywords: | ; |
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