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Characterization of Polysaccharides Extracted from a Cultivated Brown Alga Costaria costata During the Harvest Period
Liu Nannan1,2; Wu Xin1; Fu Xiaoting1; Duan Delin2,3; Xu Jiachao1; Gao Xin1
2018-10-01
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
ISSN1672-5182
Volume17Issue:5Pages:1209-1217
Corresponding AuthorFu Xiaoting(xiaotingfu@ouc.edu.cn)
AbstractIn 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. 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.
Keywordalginate brown alga Costaria costata fucoidan polysaccharides
DOI10.1007/s11802-018-3621-8
Indexed BySCI
Language英语
Funding ProjectKey Research and Development Program in Shandong Province[2016 GSF121034] ; National Science and Technology Pillar Program in the 12th Five Year Plan of China[2015 BAD17B02] ; Open Foundation of the State Key Laboratory of Bioactive Seaweed Substances ; Jiangsu Provincial Key RD Project[BE2015335]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000449985400023
PublisherOCEAN UNIV CHINA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/156371
Collection实验海洋生物学重点实验室
Corresponding AuthorFu Xiaoting
Affiliation1.Ocean Univ China, Coll Food Sci & Engn, Qingdao 266003, Peoples R China
2.State Key Lab Seaweed Bioact Subst, Qingdao 266000, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
Recommended Citation
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[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2018,17(5):1209-1217.
APA Liu Nannan,Wu Xin,Fu Xiaoting,Duan Delin,Xu Jiachao,&Gao Xin.(2018).Characterization of Polysaccharides Extracted from a Cultivated Brown Alga Costaria costata During the Harvest Period.JOURNAL OF OCEAN UNIVERSITY OF CHINA,17(5),1209-1217.
MLA Liu Nannan,et al."Characterization of Polysaccharides Extracted from a Cultivated Brown Alga Costaria costata During the Harvest Period".JOURNAL OF OCEAN UNIVERSITY OF CHINA 17.5(2018):1209-1217.
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