福建农林大学学报（自然科学版）2018，Vol.47Issue(1)：115-122,8.DOI:10.13323/j.cnki.j.fafu(nat.sci.).2018.01.018
石莼多糖及其脱蛋白与降解产物的相关性能
Related properties of Ulva polysaccharide and its deproteinated product and degradation ones
摘要
Abstract
Sulfate content, hygroscopicity and moisturizing capacitiy and in-vitro antioxidantive activity of Ulva polysaccharide and its deproteinated and degradation products were determined and analyzed. Results showed that sulfate content of crude Ulva polysaccharide (CUP) dropped significantly (P<0.01) during deproteinization by alkaline protease, but almost remained the same level during partial degradative modification (P > 0. 05). CUP and its deproteinated and degradation products all maintained great hygroscopicitiy and moisturizing capacity. After degradation, total anti-oxidative capacity (scavenging ability on ABTS+ ·) and scavenging ability on ·OH significantly enhanced (P<0.05), but its scavenging ability on DPPH·, O-· 2 and reducing ability on K4[Fe(CN)6] did not change significantly (P>0.05). While after deproteinization, all antioxidant activities of sample descended significantly (P<0.01).关键词
石莼多糖/脱蛋白/降解/相关性能/抗氧化Key words
Ulva polysaccharide/deproteinization/degradation/related characters/antioxidantive activities分类
轻工纺织引用本文复制引用
许雅楠,吕峰,李燕妹,林丽云,傅丽娟..石莼多糖及其脱蛋白与降解产物的相关性能[J].福建农林大学学报（自然科学版）,2018,47(1):115-122,8.基金项目
海洋生物资源综合加工及安全风险评估工程研究中心项目(612014043). （612014043）
