畜牧兽医学报2017，Vol.48Issue(8)：1436-1445,10.DOI:10.11843/j.issn.0366-6964.2017.08.007
胎次对奶山羊胎盘提取物抗氧化活性影响
Effect of Different Parities on the Antioxidant Activity of Dairy Goat Placenta Extract
摘要
Abstract
The objective of this work was to explore the impact of parities on antioxidant activities of extractions from dairy goat placenta,which could provide technical foundation to the application of placenta.The scavenging rate of DPPH radical and hydroxyl radical were taken as the evaluate indices of antioxidant peptides activity,the water-soluble protein content in the extract was also taken into account.The changes of placenta extract indices for different parities were compared and the attenuation of indicators with the change of storage conditions was investigated.The results showed that:1) The polypeptides contents of 1st,2nd,3rd parities in placenta were (0.201±0.03),(0.270±0.02) and (0.193±0.02) mg ·mg-1 dry matter,respectively.The DPPH radical scavenging rate of 1st,2nd,3rd parities were 32.75％,53.20％ and 37.97％.The scavenging rate of hydroxyl radicals of these 3 parities were 35.45％,51.94％ and 39.35％.The water-soluble protein content were 16.63％,23.87％ and 18.60％,respectively.2) Com-pared with the ambient temperature,the decay rate was slower under the condition of 4 ℃,therewas significant difference among parities under different conditions (P＜0.05).3) The preserva-tion rate of DPPH radical scavenging of 2nd parities at 4 ℃ was 78.85 ％.The preservation rate ofhydroxyl radicals scavenging activity of 2nd parities was 71.93％.The preservation rate of thewater-soluble protein content was 77.36％.In conclusion,it is demonstrated that the 2nd paritieswas the most prominent on antioxidant activity,dacay rate and WSP content and 4 ℃ was theideal storage temperature for the preservation of activities.关键词
奶山羊胎盘/胎次/抗氧化肽/抗氧化活性Key words
dairy goat placenta/parities/antioxidant peptide/antioxidant activities分类
农业科技引用本文复制引用
高闪闪,葛武鹏,裴剑飞,王西宁,李小鹏,梁秀珍,吴小勇..胎次对奶山羊胎盘提取物抗氧化活性影响[J].畜牧兽医学报,2017,48(8):1436-1445,10.基金项目
陕西省科技厅战略新兴产业重大项目(2015KTCQ03-08 （）
2016KTCQ03-03) （）
