Study on degradation and antioxidant activities of sphingan Ss
-
摘要: 对鞘氨醇胶Ss进行氧化降解,得到重均分子量为10.3ku的降解产物,利用红外光谱和核磁氢谱对降解产物进行结构表征,并对其抗氧化性进行测试。结果表明,降解处理后鞘氨醇胶Ss的抗氧化性显著提高,氧化降解24h的样品还原力最高,降解产物清除羟自由基的IC50为8.32mg/mL,清除超氧阴离子的IC50为12.13mg/mL。Abstract: Sphingan Ss was degraded by oxidative method, and a degradation product with weight-average molecular weight 10.3ku was obtained. The structure of degraded sphingan Ss was characterized by infrared spectrum and1H-NMR. The antioxidant capacity was investigated. The results showed that degradation product exhibited higher antioxidant activity than the sphingan Ss. The value of reducing power reached the maximum after a degradation time of 24 hours. The IC50 of scavenging hydroxyl free radical and superoxide anion was 8.32mg/mL and 12.13mg/mL, respectively.
-
Keywords:
- sphingan /
- oxidation degradation /
- polysaccharide /
- antioxidant activity
-
[1] 王华, 徐静静, 曹凤, 等.Escherichia coli K5胞外多糖硫酸酯衍生物的制备及其体外抗氧化活性研究[J].食品工业科技, 2012, 33 (16) :118-121. [2] Haixia C, Min Z, Zhishuang Q, et al.Antioxidant activities of different fractions of polysaccharide conjugates from green tea (Camellia Sinensis) [J].Food Chemistry, 2008, 106:559-563.
[3] 孙涛, 熊小英, 魏颖携, 等.黄原胶降解及其抗氧化性能研究[J].天然产物研究与开发, 2012 (24) :102-104. [4] 王凌, 孙利芹.绿色巴夫藻多糖及其降解产品的抗氧化和保湿性能[J].食品科学, 2012, 33 (21) :87-90. [5] 乐晓桐, 尹鸿萍, 徐士君.低分子螺旋藻多糖的制备及其硫酸酯化物体外抗肿瘤活性的初步研究[J].药物生物技术, 2006, 13 (2) :119-122. [6] Fialho A, Moreira L, Gran A, et al.Occurrence, production, and applications of gellan:current state and perspectives[J].Applied Microbiology and Biotechnology, 2008, 79:889-900.
[7] Haidong H, Wei W, Ting M, et al.Sphingomonas sanxanigenens sp.nov., isolated from soil[J].Int J Syst Evol Microbiol, 2009, 59 (4) :719-723.
[8] 黄海东, 李晓雁, 段娜, 等.鞘氨醇胶Ss胶凝条件及质构特性的研究[J].食品研究与开发, 2013, 34 (4) :117-120. [9] 王琪琳.海带硫酸多糖降解研究进展[J].聊城大学学报, 2007, 20 (1) :49-52. [10] 张世奇.会东块菌多糖的纯化及其分子量测定[J].食品与发酵科技, 2010, 46 (6) :97-100. [11] 徐耀.红托竹荪不同部位多糖提取及体外抗氧化活性研究[J].食品工业科技, 2012, 33 (24) :350-352. [12] 孙涛, 熊小英, 魏颖隽, 等.黄原胶降解及其抗氧化性能研究[J].天然产物研究与开发, 2012, 24:102-104. [13] 黄海东, 王薇, 马挺, 等.一种新型生物聚合物的分子组成及特性研究[J].高等学校化学学报, 2009, 30 (2) :324-327.
计量
- 文章访问数: 228
- HTML全文浏览量: 32
- PDF下载量: 83