標(biāo)題: 維生素E做飼料添加劑的安全性 [打印本頁(yè)] 作者: 牧童 時(shí)間: 2010-6-16 23:50 標(biāo)題: 維生素E做飼料添加劑的安全性 Safety of Vitamin E as a Feed Additive
EU - An investigation into the use of vitamin E as a supplement in animal feed, has found that there is no concern for consumers when it is used at practical levels.
The study was launched following a request from European Commission to the European Food Safety Authority to deliver a scientific opinion on the safety and efficacy of vitamin E as a feed additive for all animal species.
Vitamin E is a well-established micro-nutrient for all animal species. Vitamin E-based additives are globally used in animal nutrition, and have been for decades, to prevent vitamin E deficiency.
The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) examined data from three active substances (all-rac-a-tocopheryl acetate, RRR-a-tocopheryl acetate and RRR-a-tocopherol) currently authorised as vitamin E. The biopotency of these forms is different: one International Unit (IU) of vitamin E is defined as 1 mg all-rac-a-tocopheryl acetate, as 0.74 mg of RRR-a-tocopheryl acetate and as 0.67 mg of RRR-a-tocopherol.
The additives described containing those forms of vitamin E do not present major stability or homogeneity issues. However, sensitivity to light and moisture, as well as to oxygen and heat for RRR-preparations, must be appropriately managed in order to maintain the amount of vitamin E nominally available to farm animals.
Vitamin E at the current use levels is safe for all animal species. Information on hypervitaminosis E is not sufficiently consistent to derive a maximum content for vitamin E in feedingstuffs, based on safety for target species.
A conservative consumer exposure assessment indicates that the UL (300 mg a-tocopherol equivalents/day) is not exceeded even assuming high background intake and levels in animal feeds far higher than practical use. The FEEDAP Panel concludes that the use of vitamin E at practical use levels is safe for the consumer.
No concern for user safety is expected from the use of the active substances vitamin E in feed additives. However, to draw conclusions on the final formulated additives, specific studies would be required.
Vitamin E occurs in nature and its use in animal nutrition will not result in a substantial increase in concentration in the environment. Therefore, no concern for the environment is expected.
All-rac-a-tocopheryl acetate, RRR-a-tocopherol and RRR-a-tocopheryl acetate are efficacious in all animal species in satisfying the requirements for vitamin E.
The FEEDAP Panel makes specific recommendations concerning (i) labelling of vitamin E in IU, (ii) restricting the use of oily RRR-a-tocopherol to premixture manufacturers, (iii) the introduction of a recommended maximum of 200 IU vitamin E/kg complete feedingstuffs, (iv) the specification of the additives.作者: horse 時(shí)間: 2010-6-17 08:40
看起來(lái)不容易啊 ， 誰(shuí)英語(yǔ)水平好，總結(jié)重點(diǎn)說(shuō)說(shuō)看！作者: chen0529ing 時(shí)間: 2010-6-17 08:56
有高手翻譯一下撒作者: zwhxsq8198 時(shí)間: 2010-6-17 09:17
在這里秀你的英文嗎？強(qiáng)烈鄙視！?。?hr noshade size="2" width="100%" color="#808080">
作者: zwhxsq8198 時(shí)間: 2010-6-17 09:42
安全的維生素E作為飼料添加劑
歐盟-調(diào)查使用維生素E作為補(bǔ)充在動(dòng)物飼料,發(fā)現(xiàn)有不關(guān)心消費(fèi)者時(shí),它是用于實(shí)際水平。