Exploitation of Acacia confusa heartwood extract as natural photostabilizers
Wood Science and Technology, ISSN: 0043-7719, Vol: 49, Issue: 4, Page: 811-823
2015
- 20Citations
- 3Captures
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Article Description
Heartwood extracts of Acacia confusa (HEAc) were proven to have the capability of ameliorating wood photostability. However, the efficacy of photostability compared with that of commercial photostabilizers was unknown. The aim of this study was to examine whether HEAc can be used as commercial photostabilizers. Comparison was made among commercially available photostabilizers, UV absorber (Eversorb 80, EV80) and hindered amine light stabilizer (Eversorb 93, EV93). Photostability of wood slices soaked in 1, 5 and 10 % HEAc or 1 % commercial photostabilizers (EV80 or EV93) solutions was evaluated. The discoloration of 5 and 10 % HEAc-treated specimens was significantly reduced after UV irradiation. Furthermore, lignin degradation and carbonyl formation were concurrently inhibited by 5 and 10 % HEAc treatments after UV irradiation. Interestingly, 1 % HEAc treatment showed similar effectiveness compared with EV80 treatment, while 5 and 10 % HEAc treatments showed better effectiveness than EV80 treatment. HEAc can absorb UV light and quench radicals; hence, wood photodegradation was consequently prevented. These results revealed that HEAc has great potential to be developed as a natural photostabilizer.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84930473146&origin=inward; http://dx.doi.org/10.1007/s00226-015-0722-z; http://link.springer.com/10.1007/s00226-015-0722-z; http://link.springer.com/content/pdf/10.1007/s00226-015-0722-z; http://link.springer.com/content/pdf/10.1007/s00226-015-0722-z.pdf; http://link.springer.com/article/10.1007/s00226-015-0722-z/fulltext.html; https://dx.doi.org/10.1007/s00226-015-0722-z; https://link.springer.com/article/10.1007/s00226-015-0722-z
Springer Science and Business Media LLC
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