树脂法提取毛樱桃红色素的研究

Study on Extraction of Red Pigment from Pruns tomentosa with Resin

以毛樱桃为原料,研究了用树脂法提取毛樱桃红色素。结果表明,AB-8树脂对毛樱桃红色素具有较高的吸附量,用50%乙醇为洗脱剂得到的产品质量好,色价高,且AB-8树脂重复使用20次后吸附率仅降低0.98%;该色素水溶性好,在酸性条件下具有较好的稳定性,有一定的耐光性,在适当温度下对热稳定性较好,对低浓度的常用食品添加剂比较稳定,是一种价廉易得、安全可靠、使用方便的天然植物色素,在食品工业中有一定的开发利用价值。

The extraction of red pigment from Pruns tomentosa with resin was studied in this research. The results showed that AB-8 resin had the best performance of absorbing the red pigment. In the course of desorbing the absorbed pigment, 50% ethanol was optimal. AB-8 resin was selected during the experiment. After repeating 20 times, the absorption factor was only at a loss of 0.98%. The pigment has excellent water-solubility and stability in acid solution. The light, suitable heat and low density food additions also had no obvious influences on its stability. So the pigment from Solarium nigrum might be used as a good addition.