There are food processing, generally there will be a natural carotene pigment, in the food processing industry developed today, do not use the pigment appears to be a difficult task, so we will ask, for that matter, the world began as pumpkin seed extract early as more than a decade ago.
Was in the Soviet union in 1968-1970 of amaranth this kind of artificial synthetic pigments based on animal experiments, the results found that eating plenty of words will have high rate of cancer, and then the United States, Britain and pumpkin seed extract other countries scientific research personnel also have done similar research, the results show that some synthetic pigment may cause allergies, such as asthma, sore throat symptoms such as edema, itching, rhinitis, pigment and some may even damage the human nervous system.
Edible pigment should distinguish between natural and synthetic, so in order to protect the health of consumers, on the one hand, countries began to try from plant and animal products is a kind of natural edible pigment is turmeric extract powder considered to be healthy, on the other hand to a synthetic edible pigment extracted from coal tar strictly limit its usage and use scope, the degree of control the pigment in harmless to the human body.
It is understood that the United States in 1960 allowed to use 35 kinds of synthetic pigment, later banned one of the 28 species; Japan had approved of 27, banned after 16; France, India, Finland and other countries banned azo pigment. From once excessive add bright blue pigment make fans blackish green color, and that the mung bean vermicelli is selling price, to the day lily excessive add lemon yellow color look better. We can see that although for food additives, domestic enterprises jujube seed powder have already implemented a production license management methods, but also have some formal, qualified vendors, in order to earn more profits or for food sold better, add pigment in excess, caused great health risks to domestic food market.