南酸枣果皮色素的提取研究

本文采用正交实验方法优选了提取南酸枣［ｃｈｏｅｒｏｓｐｏｎｄｉａｓａｘｉｅｅａｒｉｓ］果皮色素的方法，并时提取工艺条件也进行了初步探索。实验结果表明，南酸枣果皮色素宜用碱液法浸提，在工艺上采用先酸洗后碱浸提的工艺最佳，其工艺条件是：碱液宜用氨水或氢氧化钠水溶液；控制溶液ｐＨ为１３～１４；加料比为：干原料：浸提液＝１：５～７（Ｗ／Ｗ）或新鲜原料：浸提液＝１：３～５（Ｗ／Ｗ）；浸提温度为８０～８５℃；浸提时间为６０ｍｉｎ以上，浸提次数为２次，色素浸膏的产率可达１８．４％～２１．７％，色素的提取率为７２．０％～７８．６％，色素浸膏的质量达到了国内同类产品企业标准的要求。

Research of Extracting Pigment From Choerospondias axillaris peel

Research on the extracting way , processing technique and technological conditions ofextracting natural food pigment from choerospondias axillaris peel were reporteel in the paper.Theresults show that extraction rate with base-water way is the highest.The optimum pH temperature,time of extraction and peel were 13-14 , 80-85℃. over 60 mins. and 5-7 or 3-5(W/W)respectivery. The yield of the pigment paste was 18.4%～21.7%. The pipment paste quality reachesthe demands of the chinese enterprise standards.