Structure Identification and DPPH Radical Scavenging Activity of A New Bromophenol from Polysiphonia urceolata

doi:10.7506/spkx1002-6630-200917029

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (17 ): 127-129.doi: 10.7506/spkx1002-6630-200917029

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Structure Identification and DPPH Radical Scavenging Activity of A New Bromophenol from Polysiphonia urceolata

LIU Quan-wen1，XU Hui1，LI Gui-hua1，LIU Cheng-yin3，ZHANG Ting2，ZOU Ning2,*，ZHANG Xin1

1. College of Chemistry and Materials Science, Ludong University, Yantai 264025, China；
2. College of Life Science, Ludong University, Yantai 264025, China；
3. Department of Biology, The First Middle School of Qixia City, Qixia 265300, China

Received:2009-05-24 Online:2009-09-01 Published:2014-04-14
Contact: ZOU Ning E-mail:ningzou76@hotmail.com

Abstract

Abstract:

Compound A, a new bromophenol, was isolated from red alga Polysiphonia urceolata using silica gel and Sephadex LH20 column chromatography and HPLC. Its structure was elucidated by spectroscopic techniques including UV, IR, MS, 1H and 13C NMR, and 2D NMR. Compound A was identified as 3-bromo-4-[3-bromo-4,5-dihydroxybenzyl] -5-(ethoxymethyl) benzene-1,2-diol and could effectively scavenge DPPH radical and exhibited good antioxidant activity.

Key words: Polysiphonia urceolata, bromophenol, structure identification, DPPH

CLC Number:

O657.61

LIU Quan-wen1，XU Hui1，LI Gui-hua1，LIU Cheng-yin3，ZHANG Ting2，ZOU Ning2,*，ZHANG Xin1. Structure Identification and DPPH Radical Scavenging Activity of A New Bromophenol from Polysiphonia urceolata[J]. FOOD SCIENCE, 2009, 30(17 ): 127-129.

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Structure Identification and DPPH Radical Scavenging Activity of A New Bromophenol from Polysiphonia urceolata

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