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以铁棍山药为原料,研究铁棍山药多糖肽的提取工艺及其抗氧化性质。结果表明,铁棍山药多糖肽提取最佳工艺条件为物料粒径为79.0目,超声功率为357.5 W,超声时间为35.8 min,液料比为25.8︰1(mL/g)。铁棍山药多糖肽具有较好的还原能力,高于对照组VC,而且对DPPH·有较强清除能力,随着铁棍山药多糖肽质量浓度的增加,其清除能力逐渐增强,明显高于对照组VC。
Using iron stick yam as raw material, the extraction technology and anti-oxidative property of polysaccharides peptides from Yam Yam were studied. The results showed that the optimal extraction conditions were as follows: 79.0 mesh diameter, 357.5 W ultrasonic power, 35.8 min ultrasonic time and 25.8:1 mL / g liquid to material ratio. Iron stick yam polysaccharide peptide has better reducing power, higher than the control group VC, but also to DPPH · strong scavenging capacity, with the mass concentration of iron stick yam polysaccharide increased its scavenging capacity was significantly higher than the control Group VC.