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New nitrogen-containing bromophenols from the marine red alga Rhodomela confervoides and their radical scavenging activity
Li, Ke1; Li, Xiao-Ming1; Gloer, James B.2; Wang, Bin-Gui1; Wang, BG (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China.
2012-12-01
Source PublicationFOOD CHEMISTRY
ISSN0308-8146
Volume135Issue:3Pages:868-872
SubtypeArticle
AbstractIn addition to nine known bromophenol derivatives, five new nitrogen-containing bromophenols were isolated from an ethyl acetate extract of the marine red alga Rhodomela confervoides. By using spectro-scopic methods, the structures of the new compounds were identified as 3-(2,3-dibromo-4,5-dihydroxybenzyl)pyrrolidine-2,5-dione (1), methyl 4-(2,3-dibromo-4,5-dihydroxybenzylamino)-4-oxobutanoate (2), 4-(2,3-dibromo-4,5-dihydroxybenzylamino)-4-oxobutanoic acid (3), 3-bromo-5-hydroxy-4-methoxybenzamide (4), and 2-(3-bromo-5-hydroxy-4-methoxyphenyl)acetamide (5). All of these bromophenols showed potent scavenging activity against DPPH (1,1-diphenyl-2-picrylhydrazyl) radicals, with IC50 values ranging from 5.22 to 23.60 mu M. These compounds also displayed moderate activity against ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonate) radicals, with Trolox Equivalent Antioxidant Capacity values (TEAC) ranging from 2.11 to 3.58 mM. The results obtained in this study demonstrate that the bromophenols obtained from R. confervoides may have potential application in food and/or pharmaceutical fields as natural antioxidants. (C) 2012 Elsevier Ltd. All rights reserved.
KeywordMarine Red Alga Rhodomela Confervoides Bromophenol Radical Scavenging Activity
Subject AreaChemistry, Applied ; Food Science & Technology ; Nutrition & Dietetics
DOI10.1016/j.foodchem.2012.05.117
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000310396700002
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/12366
Collection实验海洋生物学重点实验室
Corresponding AuthorWang, BG (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Univ Iowa, Dept Chem, Iowa City, IA 52242 USA
First Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Ke,Li, Xiao-Ming,Gloer, James B.,et al. New nitrogen-containing bromophenols from the marine red alga Rhodomela confervoides and their radical scavenging activity[J]. FOOD CHEMISTRY,2012,135(3):868-872.
APA Li, Ke,Li, Xiao-Ming,Gloer, James B.,Wang, Bin-Gui,&Wang, BG .(2012).New nitrogen-containing bromophenols from the marine red alga Rhodomela confervoides and their radical scavenging activity.FOOD CHEMISTRY,135(3),868-872.
MLA Li, Ke,et al."New nitrogen-containing bromophenols from the marine red alga Rhodomela confervoides and their radical scavenging activity".FOOD CHEMISTRY 135.3(2012):868-872.
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