蔗渣纤维素的自由基清除活性研究  

Study on the free radical scavenging activity of sugarcane bagasse

作　　者：梁英[1] 韦玉龙[1] 许睿[1] 李学军[1] 蒋永荣[1] 

机构地区：[1]桂林电子科技大学生命与环境科学学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2010年第5期506-508,共3页Journal of Guilin University of Electronic Technology

基　　金：广西青年基金(桂科青0832080)

摘　　要：研究了蔗渣纤维素对二苯代苦味酰自由基(DPPH)和2-连氮-双-(3-乙基苯并噻唑啉-6-磺酸)(ABTS)自由基的清除性能。结果表明,当反应时间为30 min时,蔗渣纤维素清除DPPH和ABTS自由基的IC50值分别为23.8 mg/L和1.5 mg/L;蔗渣纤维素清除DPPH的平衡时间为220 min,清除ABTS自由基的平衡时间为60min。可见,蔗渣纤维表现出了很好的自由基清除活性,将蔗渣纤维素开发成食品或者食品添加剂,可充分发挥其抗氧化作用。Free radical scavenging activity of sugarcane bagasse were researched.Experiments showed that sugarcane bagasse could scavenge free radicals such as DPPH and ABTS.When the reaction time was 30 min,IC50 of DPPH and ABTS was 23.8 mg/L and 1.5 mg/L,respectively.The equilibration time scavenging DPPH and ABTS reaction was 220 min and 60 min,respectively.Consequently,the experimental results showed that sugarcane bagasse was an active antioxidant.Sugarcane bagasse can be used as antioxidant food additives.

关 键 词：蔗渣纤维素 DPPH ABTS 自由基 

分 类 号：TS264.21[轻工技术与工程—发酵工程]