摘要
凝胶型聚多糖(PS)是好氧颗粒污泥(AGS)中重要的结构性物质,具有稳定性强、可生化性低、交联度高等特点。鉴于AGS技术广阔的应用前景与"多糖机制"的最新突破,本文首先介绍了主要胞外聚合物(EPS)的含量范围与空间分布,重点综述了以颗粒体多糖(Granulan)与类海藻酸(ALE)为代表的凝胶型PS的化学组成、可能来源与结构性功能,并指出有针对性地开展分子动力学研究与微生物基因测序是该领域研究的发展方向。
As the key structural components in aerobic granular sludge( AGS),gel-forming exopolysaccharides( PS) were characterized by strong stability,low biodegradability and high crosslinking etc. In the view of the wide application prospect of AGS technology and of the new breakthrough in 'polysaccharides'mechanism,both content range and spatial distribution of main extracellular polymeric substances( EPS) were introduced firstly. In particular,an up-to-date review on the chemical composition,proposed source and structural role of typical gel-forming PS isolated from AGS,including granulan and alginate-like( ALE) was provided in this paper. At last,the genome analyses of function microbial and molecular dynamics simulations were suggested to be undertaken in the future.
出处
《化学通报》
CAS
CSCD
北大核心
2015年第4期320-324,共5页
Chemistry
基金
国家自然科学基金项目(51308367)
苏州科技学院科研启动项目(331311203)资助
关键词
胞外聚多糖
好氧颗粒污泥
凝胶形成特性
交联作用
结构稳定性
Exopolysaccharides
Aerobic granular sludge
Gel-forming property
Crosslink action
Structural stability
