Water-soluble cochinilin color lake

A carminic acid and water-soluble technology, which is applied in the direction of azo dyes, organic dyes, chemical instruments and methods, etc., can solve the problems of not being provided, simplify the preparation process, increase the unit output, reduce the increase in purification costs and protect the environment pollution effect

Inactive Publication Date: 2009-07-08
上海染料研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to proposing the reaction conditions for the preparation of water-insoluble carminic acid lakes, this document does not prov

Method used

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  • Water-soluble cochinilin color lake
  • Water-soluble cochinilin color lake
  • Water-soluble cochinilin color lake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]Weigh 200g of dry cochineal powder, add 3000mL of sodium carbonate solution with pH=8.5, raise the temperature to 95°C, keep it warm for 1 hour, pass through a 100-mesh sieve after cooling, and adjust the pH to 6.7, add 12g of neutral protease, heat at 67°C After 6 hours of incubation, it was cooled and adjusted to pH=1.9. Filter and pass the extract through an AFC ultrafiltration membrane. Concentrate the membrane solution to 1000mL under reduced pressure, adjust the pH to 5.6 and heat up to 85°C, add 100g of 5% alum solution, keep stirring for 2 hours, add 40g of 5% calcium chloride solution, continue to keep warm for 1 hour, and then cool. Adjust the pH to 2.4 to precipitate the lake. After filtering, put the filter cake into 250mL water, heat up to 60°C, then adjust the pH to 9.4, keep it warm for 1 hour, filter and dry under reduced pressure to obtain a water-soluble protein with a content of 53%, a protein content of 12%, and a yield of 89.58%. The aluminum carmi...

Embodiment 2

[0039] Weigh 200g of cochineal dry body powder, add 3000mL buffer solution of glycine and sodium hydroxide with pH=8.6, raise the temperature to 100°C, keep it warm for 1 hour, pass through a 100-mesh sieve after cooling, and adjust the pH to 7.9, add animal protein 10 g of hydrolase was incubated at 56° C. for 6 hours, then cooled and adjusted to pH = 2.2. Filter and pass the extract through an AFC ultrafiltration membrane. Concentrate the membrane solution to 1000mL under reduced pressure, adjust the pH to 5.2 and heat up to 100°C, add 120g of 5% alum solution, keep stirring for 2 hours, add 35g of 5% calcium chloride solution, continue to keep warm for 1 hour, and then cool. Adjust the pH to 2.1 to precipitate the lake. After filtering, put the filter cake into 250mL water, heat up to 80°C, then adjust the pH to 8.6, keep it warm for 1 hour, filter and dry under reduced pressure to obtain a water-soluble protein with a content of 59%, a protein content of 16%, and a yield ...

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Abstract

The invention relates to water-soluble carminic acid color lake. The molecular formula is C44H43O32MA1, wherein M is one of Ca, 2Na, 2K or 2NH4. An SDS-PAGE analytic method is adopted for detecting protein in the water-soluble carminic acid color lake, and the water-soluble carminic acid color lake has no potential allergen protein of which molecular weight is higher than 6,000Da. The water-soluble carminic acid color lake is widely applied to food products, candies, beverage, drugs and cosmetics.

Description

technical field [0001] The invention relates to carminic acid, in particular to a water-soluble carminic acid lake. Background technique [0002] Carminic acid is an anthraquinone natural pigment, which mainly exists in the female cochineal (Dactylopius coccus costa) (also known as "Coccus cacti L."). ) and other cacti, which are commonly grown in desert regions such as Mexico and Central and South America. Depending on the pH value, the color of carminic acid colorants can range from orange to red to purple. Generally, carminic acid pigments and their derivatives are collectively referred to as cochineal. This pigment is widely used in the fields of food and medicine middle. [0003] The pigments in cochineal dried body are usually extracted by water or alcohol. However, in the process of extracting carminic acid, proteins and other substances soluble in water or alcohol in insects are also taken out, and thus exist in the extraction liquid. According to related reports...

Claims

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Application Information

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IPC IPC(8): C09B61/00
Inventor 顾民秦艳李婧菲汪岐
Owner 上海染料研究所有限公司
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