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Antioxidant Activity of Knotwood Extractives and Phenolic Compounds of Selected Tree Species
Abstract
The antioxidant potency and the radical scavenging capacity of superoxide and peroxyl radicals were assessed for 13 hydrophilic knotwood extracts of commercially important wood species, or fractions thereof, as well as for five pure wood-derived lignans and the flavonoid taxifolin. The chemical composition of the knotwood extracts was determined by gas chromatography combined with mass spectrometry. Most of the investigated wood species were rich in hydrophilic extractives (10-20% of the dry wood) with one or a few compounds dominating in each extract. All extracts had a high antioxidative potency and/or radical scavenging capacity as compared to the well-known antioxidants Trolox and butylated hydroxyanisole. The pure wood-derived lignans and taxifolin also had a high antioxidative potency and/or radical scavenging capacity. However, the antioxidant potency and/or radical scavenging capacity of several of the hydrophilic knotwood extracts were higher than that of the dominating compounds in pure form.
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Cites
Antioxidant activity of plant extracts containing phenolic compounds
Kähkönen, M. P., Hopia, A. I., Vuorela, H. J., Rauha, J.-P., Pihlaja, K., Kujala, T. S., & Heinonen, M. (1999) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf990146l · Cited by 3,854
Cited by
Content, composition, and stereochemical characterisation of lignans in berries and seeds.
Smeds, A. I., Eklund, P. C., & Willför, S. M. (2012) · Food Chemistry · doi:10.1016/j.foodchem.2012.03.133 · Cited by 104
Self-citationPolari, L., Yatkin, E., Martínez Chacón, M. G., Ahotupa, M., Smeds, A., Strauss, L., Zhang, F., Poutanen, M., Saarinen, N., & Mäkelä, S. I. (2015) · Molecular and Cellular Endocrinology · doi:10.1016/j.mce.2015.06.002 · Cited by 38
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Metadata
- Authors
- Willför, S. M., Ahotupa, M. O., Hemming, J. E., Reunanen, M. H. T., Eklund, P. C., Sjöholm, R. E., Eckerman, C. S. E., Pohjamo, S. P., & Holmbom, B. R.
- Venue
- Journal of Agricultural and Food Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-11-21
- Volume
- 51
- Issue
- 26
- Pages
- 7600-7606
- ISSN
- 0021-8561 (ISSN-L)
- 1520-5118
- OpenAlex
- W2025235714
- Cited by
- 226
- References
- 1
- FWCI
- 4.05
- Type
- journal article
- Language
- en
- Open access
- closed
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- Willför, S. M., Ahotupa, M. O., Hemming, J. E., Reunanen, M. H. T., Eklund, P. C., Sjöholm, R. E., Eckerman, C. S. E., Pohjamo, S. P., & Holmbom, B. R. (2003). Antioxidant Activity of Knotwood Extractives and Phenolic Compounds of Selected Tree Species. Journal of Agricultural and Food Chemistry. https://doi.org/10.1021/jf030445h
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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