Cochineal is one of the six edible synthetic pigments approved for use in my country, and is widely used in food, medicine, cosmetics, medical equipment, tobacco, feed, edible packaging, daily chemicals, toys and other fields.
Cochineal is one of the most commonly used dyes for fruit preparations and dairy products. It holds 40% of the market for dyes for fruit preparations. Carmine dye is commonly used to color eg strawberry yoghurt. It is added to fruit preparations during the pasteurization process (heat treatment at a minimum temperature of 85°C) to enhance the color of yoghurts containing such fruit preparations and to enable batch-to-batch Color is standardized and color variations due to fruit quality or origin of fruit preparations are avoided.
There have been researches to create a carmine food tinting make-up having high stability to acidity as well as warmth, and also its usage for coloring foods items such as fruit prep work as well as milk products. The Cochineal food coloring make-up makes up a dispersion of carmine lake combined with a dissolved carmine lake option.
In addition, research has been conducted to develop a method for the determination of chitosan content using Cochineal as a probe by resonance Rayleigh scattering.
Chitosan, whose chemical name is polyglucosamine (1,4)-2-amino-2-deoxy-D-glucan, is a kind of insect shell, shrimp shell, crab shell, mollusk widely present in nature Natural macromolecular substances in the bones and bones of certain algae. With continuous research, it has been found that chitosan has biological functions such as anti-tumor, anti-coagulation, anti-bacterial, weight loss and lipid-lowering and immunity-enhancing functions, making it widely used in medicine, food, chemical industry, cosmetics, water treatment, Applications in many fields such as metal extraction and recovery, biochemical and biomedical engineering have been greatly developed, and a large part of them have entered the practical stage or commercialization stage. Therefore, the accurate quantification of chitosan is very important, and it is of great significance to establish a simple and efficient method for determining the content of chitosan, which will further promote the application of chitosan in various fields. The study found that chitosan can combine with Cochineal to form ionic associations, which significantly enhances the resonance scattering intensity. The chitosan concentration has a good linear relationship with △I within a certain concentration range. As a quantitative basis for chitosan, the establishment A method for the determination of chitosan content by resonance Rayleigh scattering method using carmine as a probe was developed. The method has the advantages of simple operation, rapidity, low cost, high sensitivity, high recovery rate and good reproducibility, and is suitable for popularization and use in practical applications.