Antioxidant activity of dulse (Palmaria palmata) extract evaluated in vitro

被引：313

作者：

Yuan, YV ^{[1
]}

Bone, DE ^{[1
]}

Yuan, YV ^{[1
]}

机构：

[1] Ryerson Inst, Fac Community Serv, Sch Nutr, Toronto, ON M5B 2K3, Canada

来源：

FOOD CHEMISTRY | 2005年 / 91卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

antioxidant activity; Palmaria palmata; dulse; hydroxyl radical; DPPH; ABTS; linoleic acid emulsion; free radical scavenger;

D O I：

10.1016/j.foodchem.2004.04.039

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Palmaria palmata (dulse) is traditionally consumed as a snack food and garnish; but, little is known about its potential as a source of antioxidants. A I-butanol soluble fraction extracted from dulse exhibited (OH)-O-. scavenging activity EDTA (non-site and site specific activity) in a deoxyribose assay. EC50 concentrations of dulse extract to quench DPPH. and ABTS(.+) free radicals were 12.5 and 29.5 mg/ml. Dulse extract inhibited (p < 0.05) conjugated diene production in a linoleic acid emulsion at 24, 48 and 52 h, 38 degreesC and inhibited (p = 0.044) thiobarbituric acid reactive substances (TBARS) production at 52 h. One milligram dulse extract exhibited reducing activity = 9.68 mug L-ascorbic acid and total polyphenol content = 10.3 mug gallic acid; the dulse extract did not chelate transition metal ions. The antioxidant activity of the dulse extract was associated with aqueous/alcohol-soluble compounds characterized by phenolic functional groups with reducing activity. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：485 / 494

页数：10

共 52 条

[1] CHELATING AND FREE-RADICAL SCAVENGING MECHANISMS OF INHIBITORY-ACTION OF RUTIN AND QUERCETIN IN LIPID-PEROXIDATION [J].

AFANASEV, IB ;

DOROZHKO, AI ;

BRODSKII, AV ;

KOSTYUK, VA ;

POTAPOVITCH, AI .

BIOCHEMICAL PHARMACOLOGY, 1989, 38 (11) :1763-1769

[2] Seasonal variation in ecophysiological patterns in macroalgae from an Arctic fjord. II. Pigment accumulation and biochemical defence systems against high light stress [J].

Aguilera, J ;

Bischof, K ;

Karsten, U ;

Hanelt, D ;

Wiencke, C .

MARINE BIOLOGY, 2002, 140 (06) :1087-1095

[3] Antioxidant activity of Sargassum polycystum (Phaeophyta) and Laurencia obtusa (Rhodophyta) from Seribu Islands [J].

J. Anggadiredja ;

Ria Andyani .

Journal of Applied Phycology, 1997, 9 (5) :477-479

[4]

BIRD CJ, 1992, SEAWEED FLORA MARI T, P1

[5] ANTIOXIDANT DETERMINATIONS BY THE USE OF A STABLE FREE RADICAL [J].

BLOIS, MS .

NATURE, 1958, 181 (4617) :1199-1200

[6] Antioxidant metabolism in the intertidal red seaweed Stictosiphonia arbuscula following desiccation [J].

Burritt, DJ ;

Larkindale, J ;

Hurd, CL .

PLANTA, 2002, 215 (05) :829-838

[7] Comparative studies on the effect of three drying methods on the nutritional composition of seaweed Sargassum hemiphyllum (Turn) C Ag [J].

Chan, JCC ;

Cheung, PCK ;

Ang, PO .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1997, 45 (08) :3056-3059

[8] Droplet composition affects the rate of oxidation of emulsified ethyl linoleate [J].

Coupland, JN ;

Zhu, Z ;

Wan, H ;

McClements, DJ ;

Nawar, WW ;

Chinachoti, P .

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1996, 73 (06) :795-801

[9]

Dunlap W.C., 1997, 4 INT MAR BIOT C

[10] THE DEOXYRIBOSE METHOD - A SIMPLE TEST-TUBE ASSAY FOR DETERMINATION OF RATE CONSTANTS FOR REACTIONS OF HYDROXYL RADICALS [J].

HALLIWELL, B ;

GUTTERIDGE, JMC ;

ARUOMA, OI .

ANALYTICAL BIOCHEMISTRY, 1987, 165 (01) :215-219

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