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Cited by 1,107

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

HPLC Method for Evaluation of the Free Radical-scavenging Activity of Foods by Using 1,1-Diphenyl-2-picrylhydrazyl

YAMAGUCHI, Tomoko, TAKAMURA, Hitoshi, MATOBA, Teruyoshi, TERAO, Junji·1998·Bioscience, Biotechnology, and Biochemistry

Abstract

An HPLC method for evaluation of the free radical-scavenging activity of foods by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) is reported. The activity was evaluated by measuring the decrease of DPPH detected at 517 nm. By using this novel method, we determined the free radical-scavenging activity of several antioxidants: ascorbic acid, alpha-tocopherol, Trolox, and cysteine. The results gave good correlation between the radical-scavenging activity determined by HPLC and by conventional colorimetry. This methodology was applied to determine the free radical-scavenging activity of 8 beverages. The activity of coffee was the highest, followed by red wine, green tea, oolong tea, black tea, rosé wine, white wine, and orange juice. The results well agree with those of previous reports. This method is expected to be useful for a simple and rapid determination of free radical-scavenging activity in colored foods, because coloring substances in foods do not interfere with the measurement.

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Metadata

Authors
YAMAGUCHI, T., TAKAMURA, H., MATOBA, T., & TERAO, J.
Venue
Bioscience, Biotechnology, and Biochemistry
Published
1998-01
Volume
62
Issue
6
Pages
1201-1204
ISSN
  • 0916-8451 (ISSN-L)
  • 1347-6947
OpenAlex
W2167549919
Cited by
1,107
References
1
FWCI
5.10
Type
journal article
Language
en
Open access
closed

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