IUFRO Division 5 Conference

5.03.00 – Wood Protection

Chun-Ya LIN

Evaluating the Potency of Cinnamaldehyde as a Natural

Wood Preservative

Chun-Ya LIN, Chi-Lin WU and Shang-Tzen CHANG

National Taiwan University

School of Forestry and Resource Conservation

No. 1, Section 4, Roosevelt Rd.

Taipei City

Taiwan

Objective

Cinnamomum osmophloeum

Antifungi Antitermite

(Chang and Cheng 2002; Cheng et al., 2006; Wang et al., 2005)

trans-Cinnamaldehyde (82%)

GC/MS

?New Environmental

Benign Wood Preservative

WL: 31.6%

WL: 18.7%

WL: 0.8%

Brown-rot fungus

Laetiporus sulphureus

WL: 1.2%

White-rot fungus

Lenzites betulina

Non-treated wood 5% Cinnamaldehyde-treated wood (CTW)

Results

Termite Coptotermes formosanus

ShirakiWL: 0.3%

Mortality: 100%

WL: 7.3%Mortality: 10%

5% CTW placed at ambient conditions

for 12 months

WL: 1.2%

WL: 4.6%

WL: 1.4%Mortality: 83.3%

Termite attack

resistance

Fungi decay resistance

Long-term effectiveness

Cinnamaldehyde exhibited excellent resistance

against wood-rot fungi and termites

Antifungal and antitermitic performance of

cinnamaldehyde definitely last 12 months at least

Conclusions

Cinnamaldehyde has great potential to be

applied as a Natural Wood Preservative