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Extraction and Identification of Phlorotannins from the Brown Alga, Sargassum fusiforme (Harvey) Setchell
Li, Yajing1; Fu, Xiaoting1; Duan, Delin2,3; Liu, Xiaoyong4; Xu, Jiachao1; Gao, Xin1
2017-02-01
Source PublicationMARINE DRUGS
Volume15Issue:2
SubtypeArticle
AbstractPhlorotannins are a group of complex polymers of phloroglucinol (1,3,5-trihydroxybenzene), which are unique compounds from marine brown algae. In our present study, a procedure for extraction and enrichment of phlorotannins from S. fusiforme with highly antioxidant potentials was established. After comparison of different extraction methods, the optimal extraction conditions were established as follows. The freeze-dried seaweed powder was extracted with 30% ethanol-water solvent with a solid/liquid ratio of 1:5 at temperature of 25 degrees C for 30 min. After extraction, the phlorotannins were fractioned by different solvents, among which the ethyl acetate fraction exhibited both the highest total phlorotannin content (88.48 +/- 0.30 mg PGE/100 mg extract) and the highest antioxidant activities. The extracts obtained from these locations were further purified and characterized using a modified UHPLC-QQQ-MS method. Compounds with 42 different molecular weights were detected and tentatively identified, among which the fuhalol-type phlorotannins were the dominant compounds, followed by phlorethols and fucophlorethols with diverse degree of polymerization. Eckol-type phlorotannins including some newly discovered carmalol derivatives were detected in Sargassum species for the first time. Our study not only described the complex phlorotannins composition in S. fusiforme, but also highlighted the challenges involved in structural elucidation of these compounds.
KeywordSargassum Fusiforme Brown Alga Phlorotannins Polyphenol Extraction Method Identification Uhplc-dad-esi-ms
DOI10.3390/md15020049
Indexed BySCI
Language英语
WOS IDWOS:000400860200021
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/137055
Collection实验海洋生物学重点实验室
Affiliation1.Ocean Univ China, Coll Food Sci & Engn, Qingdao 266000, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
3.State Key Lab Seaweed Bioact Subst, Qingdao 266000, Peoples R China
4.Shandong Haizhibao Ocean Sci & Technol Co Ltd, Qingdao 266000, Peoples R China
Recommended Citation
GB/T 7714
Li, Yajing,Fu, Xiaoting,Duan, Delin,et al. Extraction and Identification of Phlorotannins from the Brown Alga, Sargassum fusiforme (Harvey) Setchell[J]. MARINE DRUGS,2017,15(2).
APA Li, Yajing,Fu, Xiaoting,Duan, Delin,Liu, Xiaoyong,Xu, Jiachao,&Gao, Xin.(2017).Extraction and Identification of Phlorotannins from the Brown Alga, Sargassum fusiforme (Harvey) Setchell.MARINE DRUGS,15(2).
MLA Li, Yajing,et al."Extraction and Identification of Phlorotannins from the Brown Alga, Sargassum fusiforme (Harvey) Setchell".MARINE DRUGS 15.2(2017).
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