机构地区: 华南理工大学食品与生物工程学院
出 处: 《甘蔗糖业》 2003年第1期31-33,50,共4页
摘 要: 本研究对甘蔗制糖过程中的各种原料进行活性物质的提取,并用DPPH(二苯代苦味酰基自由基)法测定其抗氧化活性,同时探讨了pH、加热温度、加热时间对自由基清除率的影响。结果表明各种原料均具有较强的抗氧化活性;pH值对抗氧化活性影响很大,而加热时间温度对抗氧化活性无显著影响。初步推断该活性物质属酚类。 Extract the active substance from sugar cane, and determine its antioxidant activity by DPPH assy. Also study the effects of pH value, heating temperature and heating time on radical-scavenging activity. The result showed high activity of all the extracts. It implied pH have significant effect on it, but heating almost have no effect. We presume the antioxidant in sugar cane is polypheol.