摘要
对κ-卡拉胶进行氧化降解,得到两种卡拉胶寡糖(L-O-KC和H-O-KC);对κ-卡拉胶进行酸降解,得到两种卡拉胶寡糖(L-H-KC和H-H-KC);对产物进行IR表征,并对其抗氧化性能进行测试。结果表明:酸降解得到的卡拉胶寡糖对超氧阴离子自由基O2-·及过氧化氢的清除能力强于氧化降解得到的卡拉胶寡糖。
Two κ- carrageenan oligosaccharides （ L- O- KC, H- O- KC） were prepared by oxidative degradation, the other two κ- carrageenan oligosaccharides （ L- H- KC, H - H - KC） were achieved by acidic degradation.The products were characterized by FI- IR.The antioxidant activities of the carrageenan oligosaccharides were investigated.The carrageenan oligosaccharides by acidic degradation exhibited higher antioxidant activity than the oligosaccharides by oxidation degradation in scavenging superoxide anion and H2O2.
出处
《食品工业科技》
CAS
CSCD
北大核心
2009年第8期111-112,145,共3页
Science and Technology of Food Industry
基金
上海市教育委员会科研项目(07zz134)
上海市重点学科建设项目专项基金(T1102)
关键词
Κ-卡拉胶
氧化降解
酸降解
抗氧化活性
κ- carrageenan
oxidation degradation
acidic degradation
antioxidant activity
