Antioxidant Activity of Polysaccharides from Loaches
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摘要: 为研究泥鳅多糖的抗氧化作用，采用生化试验检测泥鳅多糖的体外抗氧化能力。结果表明，泥鳅多糖对羟自由基、超氧阴离子和过氧化氢均具有清除能力，其中对羟自由基和过氧化氢的清除能力较强，最高分别达到73.38%和88.22%。对超氧阴离子的清除能力也达到57.99%，总抗氧化能力达到8.42 U·mL-1，表明泥鳅多糖具有较强的抗氧化能力。Abstract: Polysaccharidesin loaches were extracted by an ultrasound-assisted enzymatic method to determine the antioxidant activityusing an in vitro biochemical assay. The results showed that the polysaccharides had strong scavenging capacities toward hydroxyl radicals, superoxide anions, and hydrogen peroxide.Theremoval rate of the extract onhydroxyl radicals reached as high as 73.38%, while 88.22% on hydrogen peroxide and 57.99% onsuperoxide anions.Atotal antioxidant capacity of 8.42 units·mL-1 of the loach polysaccharides was considered high and desirable.
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Key words:
- loach /
- polysaccharides /
- antioxidant
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图 1 泥鳅多糖对羟自由基清除能力
Figure 1. Scavenging ability of loach polysaccharides on hydroxyl radicals
图 3 泥鳅多糖对超氧阴离子的清除能力
Figure 3. Scavenging ability of loach polysaccharides on superoxide anions
图 5 泥鳅多糖对过氧化氢的清除能力
Figure 5. Scavenging ability of loach polysaccharides on hydrogen peroxide
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