1. IUFRO Division 5 Conference
Chun-Ya LIN
IUFRO Division 5 Conference
– Wood Protection

2. Chun-Ya LIN,
Chi-Lin WU and Shang-Tzen CHANG
Evaluating the Potency of Cinnamaldehyde as a Natural Wood Preservative
National Taiwan University
School of Forestry and Resource Conservation
No. 1, Section 4, Roosevelt Rd.
Taipei City
Taiwan

3. ? Objective Antifungi Antitermite
Cinnamomum osmophloeum
GC/MS ?
New Environmental Benign Wood Preservative
trans-Cinnamaldehyde (82%)
(Chang and Cheng 2002; Cheng et al., 2006; Wang et al., 2005)

4. Results Fungi decay resistance Long-term effectiveness
5% Cinnamaldehyde-treated wood (CTW)
5% CTW placed at ambient conditions for 12 months
WL: 1.2%
WL: 4.6%
WL: 1.4%
Mortality: 83.3%
Non-treated wood
Brown-rot fungus Laetiporus
sulphureus
Fungi decay resistance
WL: 31.6%
WL: 0.8%
White-rot fungus Lenzites
betulina
Long-term effectiveness
WL: 18.7%
WL: 1.2%
Termite Coptotermes
formosanus
Shiraki
WL: 0.3%
Mortality: 100%
WL: 7.3%
Mortality: 10%
Termite attack resistance

5. Conclusions
Cinnamaldehyde exhibited excellent resistance against wood-rot fungi and termites
Antifungal and antitermitic performance of cinnamaldehyde definitely last 12 months at least
Cinnamaldehyde has great potential to be applied as a Natural Wood Preservative