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What is the role of antioxidizing factors ?Oxidation reactions are one of the major reasons for the degradation of dietary products during storage. Its concerns mainly the fats, whose oxidation can trigger: - rancidity development, responsible for a lower palatability - degradation of essential fatty acids, inducing some deficiencies likely to alter the skin and hair health - destruction of some vitamins - formation of toxic by-products, especially for the liver etc…Antioxydants using is absolutely necessary to guarantee the quality of the fats incorporated in the products. "Antioxygen" inhibit the oxidizing action of oxygen specifically. Actually, this gas is one of the constituants of the air surrounding the product, and it is likely to make the oxidation start. Antioxygen substances prevent from the oxidation and then the degradation of the product. Antioxygens belong to two different categories, synthesized antioxygens and natural antioxygens:
Natural antioxygens are often preferred by consumers, but one must know that:
Choosing the right antioxygen and its level of incorporation depends on several factors: ingredients to protect, shelf life guarantee, using conditions, stability, cost… Personnaly, Royal Canin has chosen to associate two different antioxygens plus another substance working in synergy, that enhances their efficiency and allows to decrease the doses of incorporation. These products are: BHA (E 320), propyl- gallate (E 310) and citric acid (E 330). These antioxygens are also used in human food. The european regulation authorizes the using of these antioxygens, provided that the mention "with antioxygens" is written on the packagings, plus:
These substances are incorporated in the fats just after their extraction, in order to prevent the oxidation process from the very beginning. This is done by our suppliers of oils and fats, according to a protocole established by Royal Canin. Let's point out that products packed under controlled-atmosphere (i.e. without any oxygen around the product), offer an additional guarantee against the risk of fat alteration.
ConclusionWhatever the additives are (vitamins and trace-elements included), they may have harmful effects when they are used over the maximum safe level. These effects have been studied, they are perfectly well-known ; this is why the european regulation imposes precised maximal rates of incorporation.We must mention here that the antioxygens residues likely to be found in Royal Canin products are 5 - 10 times less compared to the maximum limits imposed for human food. Controls are regularly performed on raw materials to check the strict application of the rules above-listed.
Donated by the Borg Cardona and Co. Ltd. visit Borg Cardona website |
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