|
|||||
|
|
| 蛹虫草胞外锌多糖抗氧化能力的研究 | |
| 引用本文： | 陈宏伟,陈安徽,邵颖,樊美珍.蛹虫草胞外锌多糖抗氧化能力的研究[J].食品与发酵工业,2009,35(6). |
| 作者姓名： | 陈宏伟 陈安徽 邵颖 樊美珍 |
| 作者单位： | 1. 安徽农业大学安徽省微生物防治重点实验室,安徽,合肥,230036;徐州工程学院食品(生物)工程学院,江苏,徐州,221008 2. 徐州工程学院食品(生物)工程学院,江苏,徐州,221008 3. 安徽农业大学安徽省微生物防治重点实验室,安徽,合肥,230036 |
| 基金项目： | 江苏省"六大人才高峰"项目，江苏省333工程资助项目，江苏省高校科研计划指导项目 |
| 摘 要： | 以蛹虫草为材料通过液体深层富锌培养获得胞外富锌多糖,测定了蛹虫草胞外富锌多糖的锌含量和抗氧化性能,即清除氧自由基、羟自由基和DPPH的能力。实验结果表明:蛹虫草富锌培养基内ZnSO4浓度在150μg/mL下,可以显著提高胞外锌多糖的有机锌含量(P<0.01),使有机锌含量达到0.87mg/g,比对照提高295%。有机锌对提高胞外锌多糖清除自由基的能力有显著的促进作用(P<0.01),清除氧自由基、羟自由基和DPPH的能力分别是对照的7.05%、23.5%和17.49%;胞外锌多糖对自由基的清除能力与多糖浓度呈明显的剂量-效应关系(P<0.01)。 |
| 关 键 词： | 蛹虫草 锌 胞外多糖 抗氧化能力 |
Studies on the Antioxidant Capacity of Zinc Rich Exopolysaccharide of Cordyceps militaris |
|
| Chen Hongwei,Chen Anhui,Shao Ying,Fan Meizhen.Studies on the Antioxidant Capacity of Zinc Rich Exopolysaccharide of Cordyceps militaris[J].Food and Fermentation Industries,2009,35(6). | |
| Authors: | Chen Hongwei Chen Anhui Shao Ying Fan Meizhen |
| Abstract: | Zinc-rich exopolysaccharide was obtained by submerged fermentation of enriched zinc from Cordyceps militaris mycelium. The content of organic zinc and antioxidant capacity of zinc-rich exopolysaccharide was deter-mined. The experiments showed that the organic zinc reaches 0.87 mg/g when the concentration of ZnSO4 in culture medium is 150 μg/mL(P<0.01), which was 295% higher than those of the control. The organic zinc could greatly enhance the free radical scavenging capacities of zinc-rich exopolysaccharide(P<0.01). Its capacities of scavenging oxygen free radicals, hydroxyl radicals and DPPH were 7.05 % ,23.5 % and 17.49 % higher than the control, re-spectively. The capacity to scavenge free radial displayed a dose-response relationship with the concentration of zinc-rich exopolysaccharide. |
| Keywords: | Cordyceps militaris zinc exopolysaccharide antioxidant capacity |
| 本文献已被 万方数据 等数据库收录！ | |