What kind of food additive is EMQ?

Trans-oxyquine has been industrially produced and used for more than 40 years since Monsanto Company put it into industrial production in 1950s. As a quinoline derivative with antioxidant function, it is named anti-oxyquine in China, and its chemical name is abbreviated as 6- ethoxy-2,2,4-trimethyl-1 2- dihydroquinoline (EMQ). China promulgated the national standard of food additive ethoxyquin (GB 8849-88) on 1988. 200 1 The newly formulated industry standard of feed-grade ethoxyquin (HG 3694-200 1) was promulgated. The author was responsible for drafting the above two standards, and was also responsible for the national new product listing of this product, which won the national third prize, and declared the invention patent (patent number ZL 92 100074. x)。

For the comprehensive comparison of the effect and price of a single variety of feed antioxidants, olaquindox is still the first choice, especially for the protection of vitamins. At present, almost all companies that synthesize vitamin A at home and abroad choose antioquine as an antioxidant.

Because antioxidant quinine is an oily liquid, it has the characteristics of "creep diffusion" in materials. If the crude oil or powder of antioxidant quinine is not evenly mixed with feed (or feed raw materials), after storage or transportation, antioxidant quinine will gradually penetrate into each component of feed. This is also an important reason why many manufacturers are willing to use olaquindox as an antioxidant to protect easily oxidizable substances such as vitamins A, D, E, K, carotene, cod liver oil, fat, fish meal, meat meal, blood meal, bone meal and feather meal. In addition, the antioxidant olaquindox is safe to use, as long as it is not excessively added and ingested by animals, there is usually no toxicological problem. However, a large number of experiments have proved that the antioxidant olaquindox has an unsatisfactory antioxidant effect on oils and fats. When it is used in a large number of premixed feeds, it is easy to be mistaken for the change of feed quality because the color of olaquindox darkens sharply (it does not actually affect feed quality). At present, there is a certain amount of industrial ethoxyquin mixed into the feed market, which will affect the reputation of this product.

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