猪皮胶原多肽的体外抗氧化特性研究

Antioxidation of pig skin collagen peptide in Vitro

以猪皮胶原多肽为原料,研究其羟自由基清除能力、还原能力、对Fe2+诱导的脂质过氧化抑制能力以及对猪油氧化的抑制效果,考察其体外抗氧化特性。结果表明:在10mg/mL^50mg/mL浓度范围内,猪皮胶原多肽具有一定的羟自由基清除能力、还原能力和对Fe2+诱导的脂质过氧化抑制能力,且随着浓度的增加抗氧化作用也增强,当浓度为50mg/mL时,对羟自由基的清除率为56.38%,还原力为0.909,对Fe2+诱导的脂质过氧化抑制率为43.34%;不同添加量的猪皮胶原多肽对猪油氧化均有明显的抑制作用,当添加量为2%时,抗氧化效果优于0.02%的叔丁基羟基茴香醚(BHA)。猪皮胶原多肽具有一定的体外抗氧化作用。

The antioxidation of pig skin collagen peptide in Vitro was studied by the hydroxyl radical scavenging,reductive ability,inhibition of lipid oxidation induced by Fe2＋ as well as oxidation inhibition on lard.The results showed that,in 10mg/ml^50mg/ml concentration range,pig skin collagen peptide has a certain amount of hydroxyl radical scavenging ability,reductive ability and inhibition capacity of lipid oxidation induced by Fe2＋,and antioxidant effect increased with concentration increasing,when the concentration reached 50mg/ml,the hydroxyl radical scavenging ability was 56.38%,the reductive ability was 0.909,and inhibition capacity of lipid oxidation induced by Fe2＋ was 43.34%;different amounts of the pig skin collagen peptides had oxidation inhibition on lard,when the amount was 2%,the antioxidant effect was better than the butyl hydroxy anisd（BHA） of 0.02%.Pigskin collagen peptide has antioxidation effects in vitro.