| 火龙果皮红色素研究 |
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| 引用本文： | 郑公铭,李向阳,叶武基.火龙果皮红色素研究[J].茂名学院学报,2005,15(3):5-7. |
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| 作者姓名： | 郑公铭 李向阳 叶武基 |
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| 作者单位： | 1. 茂名学院化工学院,广东,茂名,525000
2. 广州新粤沥青有限公司,广东,广州,510101 |
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| 摘 要： | 试验的火龙果皮红色素只溶于水，不溶于有机溶剂；在PH=5．6能保持原本的鲜红色，其它PH值均使色素颜色发生变化，k也发生变化；火龙果红色素在PH=6时光热稳定性相对最好，室内日光灯光照12h，红色稍变淡，A530降低8％，80℃加热40min红色变淡，A530降低28．5％；0．01mol／L的Na^ 、K^ 、Ca^2 、Mg^2 对火龙果红色素无影响，0．01mol／L的Al^3 、Cu^2 、Fe^3 使火龙果红色素变色。经化学显色推断火龙果皮色素中有花色苷和原花色素。
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| 关 键 词： | 火龙果皮 红色素 稳定性 花色苷 |
| 文章编号： | 1671-6590(2005)03-0005-03 |
| 修稿时间： | 2005年3月31日 |
A Study of Red- Pigment from the Pitaya Peel |
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| ZHENG Gong-ming,LI Xiang-yang,YE Wu-ji.A Study of Red- Pigment from the Pitaya Peel[J].Journal of Maoming College,2005,15(3):5-7. |
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| Authors: | ZHENG Gong-ming LI Xiang-yang YE Wu-ji |
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| Institution: | ZHENG Gong-ming~1,LI Xiang-yang~2,YE Wu-ji~1 |
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| Abstract: | Red pigment of pitaya peel only could be solvated in water and not organic solvent. It retained brilliant red only when PH=56, but changed in other PH and _(max) also changed. Its stability on light and heat was relative best in PH=6,it's A_(530) decreased 8% when lighted 12 hours in room by fluorescent lamp and decreased 28.5% and red paled a little when heated for 40 minutes in 80, 0.01mol/L Na~ K~ Ca~(2 )Mg~(2 ) hadn't effect on the red pigment but Al~(3 )Cu~(2 )Fe~(3 ) made it change colour. The pigment of pitaya peel was determined to be anthocyanins and proanthocyanidins. |
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| Keywords: | pitaya peel red-pigment stability anthocyanins |
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