Characterization of Polysaccharides Extracted from a Cultivated Brown Alga Costaria costata During the Harvest Period
文献类型：CNKI期刊论文
| 作者 | LIU Nannan; WU Xin; FU Xiaoting; DUAN Delin; XU Jiachao ; GAO Xin
|
| 发表日期 | 2018-09-27 |
| 出处 | Journal of Ocean University of China
 |
| 关键词 | alginate brown alga Costaria costata fucoidan polysaccharides |
| 英文摘要 | In this study,variations in composition and properties of polysaccharides isolated from brown algae Costaria costata were analyzed.The algae were collected from May to July of the harvest period.The carbohydrates alginate and fucoidan were extracted with selected solvents.1 H Nuclear magnetic resonance and rheology were used to investigate the monomer composition and rheological characteristics of alginate.Gas chromatography and Fourier transform-infrared spectroscopy were employed to investigate the compositional properties of purified fucoidan.The results indicated that the composition and properties of alginate and fucoidan varied during the life of this alga.The alginate from the alga harvested in May and June had a higher molecular weight,viscosity,and proportion of mannuronic acid,whereas that harvested in July had a lower molecular weight and viscosity but a higher proportion of guluronic acid.The alginate from C.costata had a higher molecular weight and a different mannuronic acid:guluronic acid ratios compared with other algae;thus,it could be used in the chemical,food,cosmetics,and pharmaceutical industries.Fucoidan content reached the maximum in June.Substantial changes in the molecular weight distribution,monosaccharide composition,and sulfate content occurred simultaneously.The fraction of fucose in the polysaccharides decreased significantly from June to July,whereas that of mannose increased.This alga can be harvested during different growth periods to obtain fucoidans and alginates with different compositions and,therefore,with different biological properties. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the Key Research and Development Program in Shandong Province(No.2016GSF121034) ; the National Science and Technology Pillar Program in the 12th Five Year Plan of China(No.2015BAD17B02) ; Open Foundation of the State Key Laboratory of Bioactive Seaweed Substances ; the Jiangsu Provincial Key R&D Project(No.BE2015335) |
| 卷 | v.17期:05页:224-232 |
| 语种 | 英文; |
| 分类号 | S917.3 |
| ISSN号 | 1672-5182 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188799]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.StateKeyLaboratoryofSeaweedBioactiveSubstances 2.CollegeofFoodScienceandEngineering,OceanUniversityofChina 3.KeyLaboratoryofExperimentalMarineBiology,InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | LIU Nannan,WU Xin,FU Xiaoting,et al. Characterization of Polysaccharides Extracted from a Cultivated Brown Alga Costaria costata During the Harvest Period. 2018. |
入库方式： OAI收割
来源：海洋研究所
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