一、关于维生素C (一)维生紊C与胶原蛋白合成的关系维生素C在胶原蛋白合成过程中的重要作用,早为人们所重视。许多研究业已证明,当胶原蛋白合成时,多肽链中的脯氨酸及赖氨酸残基分别在胶原脯氨酸羟化酶及胶原赖氨酸羟化酶催化下羟化为羟脯氨酸及羟赖氨酸残基。维生素C是这种羟化酶维持活性所必需的辅助因素之一。羟脯氨酸在维持胶原蛋白三维结构上十分重 First, on vitamin C (a) the relationship between vitamin C and collagen synthesis Vitamin C in the synthesis of collagen plays an important role as early as people pay attention. Many studies have shown that when collagen is synthesized, the proline and lysine residues in the polypeptide chain are hydroxylated to hydroxyproline under the action of collagen proline hydroxylase and collagen lysine hydroxylase, respectively And hydroxylysine residues. Vitamin C is one of the necessary cofactors for this hydroxylase to maintain its activity. Hydroxyproline is very heavy in maintaining the three-dimensional structure of collagen