Gardenia Yellow is a natural water soluble carotenoid with strong coloring power and can be used as a food additive.
Food industry:
1.Gardenia Yellow pigment can inhibit 80% oxidation of linoleic acid, so it can be used as an antioxidant in food processing;
2.It is also thermal stable. Under the conditions of 80 ℃ for 120 minutes, the residual pigment can reach as high as 85% .
3.Under visible light (40lun -700nln) range, it is stable , but it turns affected by the wavelength range of 250nm-390nm . That makes it a all- A player as an antioxidant and coloring agent in the food industry.
4.The Gardenia Yellow colorant is basically unchanged in the pH range of 4-11, it also keeps stable to metal ions.
The natural yellow colorant has excellent dyeing ability to protein, starch, etc., and can be widely used in various foods such as cakes, candies, flour, beverages, jellies, biscuits, ice cream, etc.
Fabrics dyeing
Studies have shown the dyeing properties of natural gardenia yellow on silk fabrics. The results show that it is the pigment amount that has the greatest effect on the dyeing result, Post-mordant dyeing is suitable for gardenia yellow . Compared with direct dyeing, the color of post-mordant dyed fabrics has no obvious change. Except for the light fastness not exceeding 3, the other fastnesses are basically above 4.
Pharmaceutical industry:
In addition to its pigmented ingredients, the yellow pigment contains a certain amount of crocetin with high medical value, such as blood circulation, invigorating blood circulation, anti-fatigue, pain relief, and blood pressure reduction. It can be applied to the pharmaceutical industry.
Safety
Gardenia is a reputated coloring herb for thousands of years in China.
In 1998, the Ministry of Health announced the list of herbs that are both food and medicine, , Gardenia was among.the first batch .
The Sino-Japanese edible colorant standard seminar was held in Beijing not long ago. The content of the meeting was that China and Japan discussed the unification of the standards for red yeast red and gardenia yellow pigments, and then jointly declared to the Joint Food Additives Expert Committee (JECFA) of the Food and Agriculture Organization of the United Nations and the World Health Organization (JECFA). In this way, gardenia yellow can be widely used all over the world.
