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H. Morais P. Rodrigues C. Ramos E. Forgcs T. Cserhti J. Oliveira 《Molecular nutrition & food research》2002,46(5):308-310
The effect of ascorbic acid, light, and storage on the stability of the pigments β‐carotene and capsanthin in red pepper (Capsicum annuum) powder has been elucidated by determining the amount of pigment in samples treated by various concentrations of ascorbic acid. Determination of pigment concentration has been performed after different storage times using high‐performance liquid chromatography. The dependence of the concentration of pigments on the concentration of ascorbic acid, presence of light and the storage time has been assessed by stepwise regression analysis. The concentration of pigments decreased at longer storage time and increased at higher concentration of ascorbic acid, β‐carotene being more sensitive towards storage time and concentration of ascorbic acid than capsanthin. Interaction between the effects of light and storage time, and light and concentration of ascorbic acid has been established. 相似文献
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四种极具发展前景的天然色素的研究进展 总被引:5,自引:1,他引:4
开发天然色素是世界食用色素发展的总趋势,本文介绍了四种极具发展前景的天然色素:红曲色素、天然胡萝卜素、酸枣色素、辣椒红素。对它们的基本性质、制取工艺及应用概况进行了论述。 相似文献
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目的:研究辣椒中辣椒红素的分离和含量测定方法。方法:采用高效液相色谱进行分离,并鉴定其成分及含量。色谱条件:InertsilOD-3色谱柱(4.6×250mm,5m),流动相:甲醇—二氯甲烷,流速:1ml/min,检测波长:474nm,柱温:30℃,进样量:10μl。结果:对辣椒红素提取液进行分离工艺探索,根据它的物理、化学特性对KOH用量、乙醚用量和静置时间进行了研究,经过二次旋转回归试验优化结合响应面分析,得出最高纯度和最优条件组合:KOH用量为5.39ml,乙醚用量为15.574ml,静置时间为2.34h,分离后的样品纯度由2.8%提高到17.2%,提高了6.14倍。结论:本研究在HPLC快速测定辣椒中辣椒红素中具有使用价值。 相似文献
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采用超声波辅助丙酮提取辣椒中的辣椒红素,高效液相色谱法进行测定。色谱条件为色谱柱:4.6×250mm,5m;流动相:甲醇—二氯甲烷;流速:1ml/min;检测波长:474nm;柱温:30℃;进样量:10μl。结果表明,峰面积与待测物浓度呈良好的线性关系。 相似文献
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辣椒的分析与综合利用 总被引:10,自引:0,他引:10
论述了辣椒碱的结构、生理作用及其提取方法;论述了辣椒色素、辣椒油的组成及应用,辣椒色素及其油的提取方法等,使辣椒制品可广泛用于医药、食品、化妆品、保健油品、天然抗氧化剂等方面。 相似文献
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