A method for extracting jujube pigments includes the following steps: (1) picking and cleaning jujube, drying at 85 120, grinding to 2mm X2mm granules by crusher; (2) soaking with water bath heating method, extracting with 60% ethanol solution (pH=5) at 80 for 2h, the amount of ethanol solution is 20 times the weight of jujube; (3) extracting and desalting with ethyl acetate in the concentrated solution of pigments; (2) desalting and steaminating with ethyl acetate. The final product was obtained by vacuum drying and the extraction rate was 35%. The method has the advantages of simple process, safe and non-toxic extraction of pigments, acid and alkali resistance, good stability to light, heat, redox agents, some food additives and metal ions, is a good food additive, and can also be used in daily chemical products, and can extract yellow pigments and red pigments by controlling drying temperature, especially for inferior jujube. A good way of development and utilization.
【技术实现步骤摘要】
一种红枣色素的提取方法
本专利技术涉及一种果品色素的提取,具体涉及一种红枣色素的提取方法,属食品加工
技术介绍
红枣(ZizyphusJujuba)为我国特产,素有活性维生素丸之称,属药食同源食物。枣树有4000多年的栽培史,我国北方地区广有栽种,也是近年来黄河中下游地区退耕还林和发展经济林果的主要树种之一,产量很高。但近年来,因种种原因,特别是秋雨过多,使红枣易烂难存,造成销售不畅,资源浪费,经济效益低下。随着人们生活水平的逐步提高,在崇尚回归自然的理念下,红枣色素不失为一种理想的天然色素资源,其色泽鲜艳,含量丰富,安全无毒,具有特定的药理药效功能,可广泛地用于食品、医药及化妆品着色,具有广阔的开发应用前景。
技术实现思路
本专利技术的目的是为克服上述现有技术的不足之处,提供一种红枣色素的提取方法,利用红枣药食同源的特点,经粉碎、用60%的乙醇溶液提取,乙酸乙酯萃取除盐、真空干燥后得色素。该色素均安全无毒,耐酸碱,对光、热、氧化还原剂、部分食品添加剂和金属离子稳定性好,是一种良好的食品添加剂,也可用于日用化工产品中,且可通过控制烘干温度,提取黄色素和红色素 ...
【技术保护点】
1.一种红枣色素的提取方法,其特征在于,经粉碎、用60%的乙醇溶液提取,乙酸乙酯 萃取除盐、真空干燥后得色素。
【技术特征摘要】
1.一种红枣色素的提取方法,其特征在于,经粉碎、用60%的乙醇溶液提取,乙酸乙酯萃取除盐、真空干燥后得色素。2.根据权利要求1所述的一种红枣色素的提取方法,其特征是:该方法包括如下步骤:(1)将红枣挑拣清洗,在85-120℃烘干,经粉碎机粉碎...
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