In vivo, D-pantothenic acid is converted into CoA (CoA) or acyl carrier protein (ACP) to participate in fatty acid metabolism.CoA is a cofactor of more than 70 enzymes (about 4% of the total amount of enzymes) in living organisms, and bacteria also need CoA to build cell walls.In metabolism, CoA mainly plays the function of acyl carrier, participates in the metabolism of sugar, fat, protein and energy, and can modify proteins to affect the localization, stability and activity of proteins.CoA provides 90 percent of the energy for an organism.Pantothenic acid is essential for the synthesis of steroids by fatty acids;It can also participate in the synthesis of steroid violet, melatonin and heme iron.Or in vivo citric acid cycle, choline acetylation, synthesis of antibodies and other metabolism necessary intermediates.Therefore, D-pantothenic acid can act on normal epithelial organs such as nerves, adrenal glands, digestive tract and skin in vivo to improve the resistance of animals to pathogens.
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