All-rac-α-Tocopherol Acetate Is a Better Vitamin E Source than all-rac-α-Tocopherol Succinate for Broilers
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چکیده
منابع مشابه
An evaluation of natural (RRR-α-tocopheryl acetate) and synthetic (all-rac-αlpha-tocopheryl acetate) vitamin E fortification i
Three experiments conducted with weanling pigs evaluated the effects of vitamin E added to the drinking water or diet on plasma and tissue αtocopherol concentrations. When natural or synthetic vitamin E was used, it was added at an IU-equivalent basis, but natural vitamin E was 73.5% (mg basis) of the synthetic vitamin E. Experiment 1 used 18-d-old weanling pigs (n = 120) in a 3 × 2 factorial a...
متن کاملA Comparison of Natural (D-α-tocopherol) and Synthetic (DL-α-tocopherol Acetate) Vitamin E Supplementation on the Growth Performance, Meat Quality and Oxidative Status of Broilers.
The present study was conducted to compare the supplementation of natural (D-α-tocopherol) and synthetic (DL-α-tocopherol acetate) vitamin E on the growth performance, meat quality, muscular antioxidant capacity and genes expression related to oxidative status of broilers. A total of 144 1 day-old Arbor Acres broiler chicks were randomly allocated into 3 groups with 6 replicates of 8 birds each...
متن کاملBioavailability of a-tocopherol stereoisomers in rats depends on dietary doses of all-rac- or RRR-a-tocopheryl acetate
The biological function of the stereoisomers of a-tocopherol is believed to depend on their bioavailability. Assessment of bioavailability within the body is therefore considered to be a good and easy way to predict biological value. The separation of a-tocopherol methyl ethers by chiral column HPLC is a good and easy tool with which to study the distribution of a-tocopherol stereoisomers. The ...
متن کاملThe α-tocopherol status and expression of α-tocopherol-related proteins in methionine-choline deficient rats treated with vitamin E
Non-alcoholic fatty liver disease is the most common liver disorder in developed countries, and its incidence is increasing in all population groups. As an antioxidant, vitamin E is effective in the treatment of non-alcoholic fatty liver disease, although the mechanism is still unclear. Methionine-choline deficient Wistar rats (n = 5) used as an experimental model of non-alcoholic fatty liver d...
متن کاملThe naturally occurring α-tocopherol stereoisomer RRR-α-tocopherol is predominant in the human infant brain.
α-Tocopherol is the principal source of vitamin E, an essential nutrient that plays a crucial role in maintaining healthy brain function. Infant formula is routinely supplemented with synthetic α-tocopherol, a racaemic mixture of eight stereoisomers with less bioactivity than the natural stereoisomer RRR-α-tocopherol. α-Tocopherol stereoisomer profiles have not been previously reported in the h...
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ژورنال
عنوان ژورنال: The Journal of Nutrition
سال: 1999
ISSN: 0022-3166,1541-6100
DOI: 10.1093/jn/129.7.1355