Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 1,782

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

Screening of Plant Extracts for Antioxidant Activity: a Comparative Study on Three Testing Methods

Open access
Koleva, Irina I., van Beek, Teris A., Linssen, Jozef P. H., Groot, Aede de, Evstatieva, Lyuba N.·2002·Phytochemical Analysis

Abstract

Three methods widely employed in the evaluation of antioxidant activity, namely 2,2′‐diphenyl‐1‐picrylhydrazyl (DPPH) radical scavenging method, static headspace gas chromatography (HS‐GC) and β‐carotene bleaching test (BCBT), have been compared with regard to their application in the screening of plant extracts. The strengths and limitations of each method have been illustrated by testing a number of extracts, of differing polarity, from plants of the genus Sideritis , and two known antioxidants (butylated hydroxytoluene and rosmarinic acid). The sample polarity was important for the exhibited activity in the BCBT and HS‐GC methods but not for the DPPH method. The complex composition of the extracts and partition phenomena affected their activity in each assay. The value of the BCBT method appears to be limited to less polar samples. Although slow, the HS‐GC method is preferable for assessing the antioxidant inhibitory properties on the formation of unwanted secondary volatile products. Being rapid, simple and independent of sample polarity, the DPPH method is very convenient for the quick screening of many samples for radical scavenging activity. Copyright © 2001 John Wiley & Sons, Ltd.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/pca.611

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Cited by

See all 1,782

Metadata

Authors
Koleva, I. I., van Beek, T. A., Linssen, J. P. H., Groot, A. D., & Evstatieva, L. N.
Venue
Phytochemical Analysis
Publisher
Wiley
Published
2002-01
Volume
13
Issue
1
Pages
8-17
ISSN
  • 0958-0344 (ISSN-L)
  • 1099-1565
OpenAlex
W2083308882
Cited by
1,782
References
1
FWCI
9.22
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.