LPS-induced NO inhibition and antioxidant activities of ethanol extracts and their solvent partitioned fractions from four brown seaweeds

被引：6

作者：

Cho M.L. ^{[1
]}

Lee D.-J. ^{[2
]}

Lee H.-S. ^{[3
]}

Lee Y.-J. ^{[3
]}

You S.G. ^{[2
]}

机构：

[1] East Sea Research Institute, KIOST, Uljin

[2] Department of Marine Food Science and Technology, College of Life Sciences, Gangneung-Wonju National University, Gangneung

[3] Global Bioresources Research Center, KIOST, Ansan

来源：

Ocean Science Journal | 2013年 / 48卷 / 4期

关键词：

antioxidant activity; brown seaweeds; D; viridis; NO inhibition; phlorotannins;

D O I：

10.1007/s12601-013-0033-y

中图分类号：

学科分类号：

摘要：

The nitric oxide inhibitory (NOI) and antioxidant (ABTS and DPPH radical scavenging effects with reducing power) activities of the ethanol (EtOH) extracts and solvent partitioned fractions from Scytosiphon lomentaria, Chorda filum, Agarum cribrosum, and Desmarestia viridis were investigated, and the correlation between biological activity and total phenolic (TP) and phlorotannin (TPT) content was determined by PCA analysis. The yield of EtOH extracts from four brown seaweeds ranged from 2.6 to 6.6% with the highest yield from D. viridis, and the predominant compounds in their solvent partitioned fractions had medium and/or less polarity. The TP and TPT content of the EtOH extracts were in the ranges of 25.0-44.1 mg GAE/g sample and 0.2-4.6 mg PG/g sample, respectively, which were mostly included in the organic solvent partitioned fractions. Strong NOI activity was observed in the EtOH extracts and their solvent partitioned fractions from D. viridis and C. filum. In addition, the EtOH extract and its solvent partitioned fractions of D. viridis exhibited little cytotoxicity to Raw 264.7 cells. The most potent ABTS and DPPH radical scavenging capacity was shown in the EtOH extracts and their solvent partitioned fractions from S. lomentaria and C. filum, and both also exhibited strong reducing ability. In the PCA analysis the content of TPT had a good correlation with DPPH (r = 0.62), ABTS (r = 0.69) and reducing power (r = 0.65), however, an unfair correlation was observed between the contents of TP and TPT and NOI, suggesting that the phlorotannins might be responsible for the DPPH and ABTS radical scavenging activities. © 2013 Korea Ocean Research & Development Institute (KORDI) and the Korean Society of Oceanography (KSO) and Springer Science+Business Media Dordrecht.

引用

页码：349 / 359

页数：10

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