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乳清分离蛋白美拉德反应产物的体外抗氧化特性 被引量:4

Antioxidant Properties of Maillard Reaction Products from Whey Protein Isolate
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摘要 以乳清分离蛋白和木糖、葡萄糖、果糖、蔗糖、麦芽糖、乳糖为美拉德反应原料,研究蛋白与糖的种类及混合比例对褐变程度的影响,并对反应产物进行抗氧化活性检测。结果表明:木糖与乳清分离蛋白按质量比2:1混合,湿热糖基化反应后,褐变程度最强,且在乳清分离蛋白与木糖按质量比2:1条件下反应后,乳清分离蛋白-木糖体系的美拉德反应产物(MRPs)具有较高还原能力和抗脂质过氧化能力及对DPPH自由基和O-2.具有较高的清除能力。 We undertook this study to examine the effects of different sugars(xylose,glucose,fructose,sucrose,maltose and lactose) and protein:sugar ratio on browning in the Maillard reaction of WPI(whey protein isolate).The antioxidant activity of the MRPs was also determined.The results showed that the MRPs of WPI-xylose system at a ratio of 2:1 had the highest browning degree,thereby showing strong reducing capacity,lipid peroxidation inhibitory effect,DPPH radical scavenging activity,and hydroxyl free radical scavenging activity.
出处 《食品科学》 EI CAS CSCD 北大核心 2013年第9期56-60,共5页 Food Science
基金 黑龙江省博士后科研启动基金项目(LBH-Q08142)
关键词 乳清分离蛋白 美拉德反应 褐变 抗氧化 WPI Maillard reaction browning antioxidant
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