α-Tocopherol pro-vitamins: synthesis, hydrolysis and accumulation in rabbit ear skin
Journal of Controlled Release, 2004 We synthesized esters of alpha-tocopherol (VE) with the aim to develop new pro-vitamins, easily reconverted by enzymes in the skin and able to release another active moiety such as an amino acid, in order to obtain a synergic effect. In particular, the attention was dedicated to the amino acids glycine and alanine and to pyroglutamic acid.
Carmine Ostacolo +2 more
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Microbial Biotechnology, 2016 Summary Vitamins and related compounds, such as provitamins, biopigments and antioxidants, belong to those few chemicals that appeal in a positive way to most people. These terms sound synonymous to vitality, good health and mental strenght, even to the layman.
JOSÉ L Revuelta +2 more
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Scientific Opinion on the safety and efficacy of betaine anhydrous as a feed additive for all animal species based on a dossier submitted by Trouw Nutritional International B.V. [PDF]
EFSA Journal, 2013 Glycine betaine (betaine) acts as a methyl group donor in transmethylation reactions in organisms. Betaine occurs in numerous vertebrate tissues as an osmolyte, ensuring osmoprotection. Betaine is safe for piglets at the maximum supplementation rate of 2
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
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Scientific Opinion on the safety and efficacy of betaine anhydrous as a feed additive for all animal species based on a dossier submitted by Danisco Animal Nutrition [PDF]
EFSA Journal, 2013 Glycine betaine (betaine) acts as a methyl group donor in transmethylation reactions in organisms. Betaine occurs in numerous vertebrate tissues as an osmolyte, ensuring osmoprotection. Betaine is safe for piglets at the maximum supplementation rate of 2
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
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Scientific Opinion on the safety and efficacy of vitamin D3 (cholecalciferol) as a feed additive for all animal species or categories based on a dossier submitted by Lohmann Animal Health GmbH [PDF]
EFSA Journal, 2014 The principal physiological role of vitamin D in all vertebrates is in calcium and phosphorus homeostasis. The classic clinical deficiency syndrome is rickets.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
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Scientific Opinion on the safety and efficacy of vitamin D3 (cholecalciferol) as a feed additive for pigs, piglets, bovines, ovines, calves, equines, chickens for fattening, turkeys, other poultry, fish and other animal species or categories, based on a dossier submitted by Fermenta Biotech Ltd [PDF]
EFSA Journal, 2013 The principal physiological role of vitamin D in all vertebrates is in calcium and phosphorus homeostasis. The classic clinical deficiency syndrome is rickets.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj +1 more source
Scientific Opinion on the safety and efficacy of iron compounds (E1) as feed additives for all species: ferrous sulphate heptahydrate based on a dossier submitted by Kronos International, Inc. [PDF]
EFSA Journal, 2014 Ferrous sulphate heptahydrate is safe when supplied up to a maximum iron content per kilogram complete feedingstuff of 450 mg for bovines and poultry, 500 mg for ovines, 600 mg for pets, and 750 mg for other species/categories, except horses and fish ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
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Scientific Opinion on the safety and efficacy of betaine (betaine anhydrous and betaine hydrochloride) as a feed additive for all animal species based on a dossier submitted by VITAC EEIG [PDF]
EFSA Journal, 2013 Glycine betaine (betaine) acts as a methyl group donor in transmethylation reactions in organisms. Betaine occurs in numerous vertebrate tissues as an osmolyte, ensuring osmoprotection. Betaine is safe for piglets at the maximum supplementation rate of 2
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj +1 more source
Pro-Vitamin A in the Food of Whales [PDF]
Journal of Experimental Biology, 1935 ABSTRACT The origin of the large reserves of vitamin A which may be found in certain tissues, particularly the livers, of fish has been the subject of considerable study. In the case of some species (e.g. cod and halibut) an examination of the food has shown that the concentrations of vitamin A and its acknowledged precursor carotene are
J. C. Drummond, R. J. Macwalter
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EFSA Journal, 2021 Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the assessment of the application for renewal of authorisation of vitamin ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) +24 more
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