The invention belongs to the field of extracting and separating natural products, and provides a method for increasing the price of capsicum red by catalyzing ester hydrolysis with lipase, which can effectively remove vegetable oil components in capsicum red and thereby improve the price of Capsicum red. The economic benefit is good and the product quality is stable. The specific implementation is as follows: 1) Dissolve capsicum powder in ethanol aqueous solution, adjust the PH value, add lipase, and control it. After making suitable temperature, enzymatic hydrolysis, heating and continuous extraction for a certain period of time, filter cake is washed with ethanol aqueous solution and dried after filtration; 2) once extraction, drying products and extracting solvents are added to the extractor, after several hours of extraction, filtered and concentrated after filtrate extraction, product 1; 3) twice extraction, cake is extracted again with extracting solvents, filtered and concentrated, and product 2 is obtained. The three-step operation method of the invention is to remove the hard-to-separate components of Capsicum oil by enzymatic method, and the extraction process is simple and the impurities are sufficient. The filtrate of step one can be used to extract capsaicin. The products 1 and 2 can meet the needs of different markets, and the prepared capsicum red products have high color price, low hotness and high quality.
【技术实现步骤摘要】
一种脂肪酶催化解酯提高辣椒红色价的方法
本专利技术属于天然产物提取分离
,涉及天然红色素辣椒红的获取,具体涉及如何进一步提高辣椒红色素(辣椒红,3,3'-Dihydroxy-beta,kappa-caroten-6'one,CAS:465-42-9)的色价。
技术介绍
辣椒红色素是一种优质天然植物色素,作为天然着色剂,不仅色泽鲜艳,着色力强,而且具有药理作用。辣椒红色素可调配不同色价,从而呈现出淡黄、深黄、橘红、深红等颜色梯度,广泛应用于食品、化妆品和制药行业中。辣椒红色素是四萜类衍生物,按色素化学结构分类为异戊二烯类,分子式为C40H56O3,分子量584.87,含有11个共轭双键,6位有1个共轭酮基和1个环戊烷环,共轭酮基是辣椒红色素分子中的发色基团,化学结构式为:纯的辣椒红素为深胭脂红色针状结晶,熔点175-176℃,在辣椒生长过程中,随着辣椒色素生物合成的进行,脂肪酸与辣椒中叶黄素的酯化反应也同时发生,到成熟时红辣椒中游离色素、单酯化色素和全酯化色素分别以20%-30%、20%-30%、40%-50%,约70%-80%的色素是以酯的形式存在于辣椒中。辣椒中的油酸、亚油酸,酯类组分由于极性与辣椒红接近,在提取的过程中会一起提取出来,且后期分离困难。采用蒸馏等提取挥发油的方法去除,由于温度过高,辣椒红会变质较快。公开号为CN106634037A的专利中,辣椒红提取液采用升膜蒸发器、降膜蒸发器,旋转膜蒸发器对辣椒红提取物进行连续的蒸发分离,这对于热敏性的辣椒红有严重影响,产品会随着连续蒸发而色值下降,且能耗较高。公开号为CN107022202A的专 ...
【技术保护点】
1.一种脂肪酶催化解酯提高辣椒红色价的方法,其特征在于包括以下步骤:1)除杂:辣椒筛选粉碎后,以乙醇水为溶媒,浸泡并搅拌,调节pH值至7.4~8,加入脂肪酶酶解,酶解1~3小时后体系升温,控制温度60℃~70℃,继续搅拌浸提1小时,过滤,滤渣烘干备用;2)第一次浸提:烘干料投入浸提容器中,加入提取溶媒,控制温度50℃~70℃,浸提1~3小时,过滤,滤液中再加入乙醇水溶液,萃取,取上层色素溶液浓缩,得产品1,呈暗红色或红褐色,按GB1886.34‑2015检测,吸光度
【技术特征摘要】
1.一种脂肪酶催化解酯提高辣椒红色价的方法,其特征在于包括以下步骤:1)除杂:辣椒筛选粉碎后,以乙醇水为溶媒,浸泡并搅拌,调节pH值至7.4~8,加入脂肪酶酶解,酶解1~3小时后体系升温,控制温度60℃~70℃,继续搅拌浸提1小时,过滤,滤渣烘干备用;2)第一次浸提:烘干料投入浸提容器中,加入提取溶媒,控制温度50℃~70℃,浸提1~3小时,过滤,滤液中再加入乙醇水溶液,萃取,取上层色素溶液浓缩,得产品1,呈暗红色或红褐色,按GB1886.34-2015检测,吸光度200~230,为高色价辣椒红;3)第二次浸提:一次提取滤渣,继续投入浸提容器中,加入提取溶媒,控制温度60℃~80℃,浸提2~4小时,过滤,滤液浓缩,得产品2,呈现暗红色或红褐色,按GB1886.34-2015检测,吸光度约150~200,为色价较高的辣椒红。2.根据权利要求1所述的脂肪酶催化解酯提高辣椒红色价的方法,其特征在于:所述步骤1)中乙醇水溶液质量浓度为60%~80%,辣椒粉与乙醇水溶液的加入质...
【专利技术属性】
技术研发人员:牛亮峰,梁玮,张超,刘成,李光,
申请(专利权)人:许昌学院,
类型:发明
国别省市:河南,41
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