Recovery of yellow pigment from Yellow River ginger hydrolysate saponin extract was studied. The invention relates to the field of deep processing of agricultural products, which is characterized by collecting, concentrating and crystallization of the crude saponin waste liquid and refined waste liquid respectively, and then using alcohol to dissolve, heat filter, and concentrate the filtrate, and then concentrate further into the paste after the crystallization of the saponin, that is, the product of the yellow ginger pigment. The invention can recover the yellow ginger pigment from the extract of the hydrolysate of Zingiberis Zingiberis, improve the utilization rate of the yellow ginger resource, reduce the production cost of the zingiberin saponin, increase the yield of the saponin, increase the added value and reduce the environmental pollution. Compared with the extraction of pigment from the yellow ginger, the invention does not need to increase the investment and the investment. The recovery of pigment is completed in the process of saponin production, and the production cost of yellow ginger pigment is very low.
【技术实现步骤摘要】
从黄姜水解物皂素提取废液中回收黄姜色素的方法一、
农产品深加工领域,具体来说本专利技术是一种从黄姜水解物皂素提取母液中同收黄姜色素的方法。二、
技术介绍
黄姜是盾叶薯蓣的俗称,是一种含有淀粉、单宁、生物碱、色素、皂素等成分的经典药材。目前国内外对黄姜的深加工主要集中在对黄姜皂素的提取。而在黄姜皂素提取过程中,会产生大量含有黄姜色素及其他有机物的废液,这不仅会造成环境污染,而且造成黄姜资源的浪费,因此,对黄姜废液的综合利用进行开发研究具有重要意义。以黄姜为原料提取色素物质是对黄姜进行开发利用的途径之一,目前国内对黄姜色素的提取研究主要有:采用有机溶剂从黄姜中提取黄姜色素;采用有机溶剂从黄姜中提取黄色素并对色素稳定性进行了研究;采用有机溶剂从黄姜中提取黄姜皂素、淀粉纤维素和黄色素;采用酶法从黄姜中提取黄姜色素。上述黄姜色素提取均以黄姜为原料,存在生产成本高,难以实际应用的缺陷。三、
技术实现思路
本专利技术的目的是提供一种从黄姜水解物中回收黄姜色素的方法,以提高黄姜资源的利用率,提高附加值,同时减轻环境污染。本专利技术是这样实现的:以黄姜皂素生产过程中,皂素提取、结晶、洗涤过程所剩废液为原料,经浓缩,回收石油醚或汽油:将浓缩物用酒精溶解、过滤除皂素后,再浓缩,即得黄姜色素产品。本专利技术技术要点是:1.废液的收集(1)黄姜皂素的提取:用石油醚或汽油提取黄姜水解物(料液比1∶6~10,提取时间4~6h,提取温度80~90℃),得提取液;(2)皂素粗制废液的收集:将提取液浓缩至1/6~1/3,放置、结晶,通过抽滤或离心使皂素粗品与母液分离;用冷石油醚或冷汽油淋洗皂素粗 ...
【技术保护点】
从黄姜水解物皂素提取废液中回收黄姜色素,包括皂素粗制和精制废液浓缩、醇溶。其特征在于从黄姜水解物皂素提取废液中回收黄姜色素;对皂素粗制和精制废液浓缩,除皂素,得黄姜色素粗品;将黄姜色素粗品用酒精溶解,浓缩,除皂素,得黄姜色素产品。
【技术特征摘要】
1.从黄姜水解物皂素提取废液中回收黄姜色素,包括皂素粗制和精制废液浓缩、醇溶。其特征在于从黄姜水解物皂素提取废液中回收黄姜色素;对皂素粗制和精制废液浓缩,除皂素,得黄姜色素粗品;将黄姜色素粗品用酒精溶解,浓缩,除皂素,得黄姜色素产品。2.根据权利要求1所述的方法,从黄姜水解物皂素提取废液中同收黄姜色素。3.根据权利要求1所述的方法,将皂素粗制和精制废液分别浓缩至有晶体析出时,静置、冷却,使皂素结晶析出,抽滤分离皂素晶体与母液,并用冷石油醚或汽油或酒精淋...
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