Inhibiting Effect of Extracts from Episperm of Ginkgo biloba against Mold on Wood

Experiments were conducted on inhibiting effect of solution with different concentration of extracts from episperm of Ginkgo biloba against 8 common mould strains on culture media, and determination was made on preservative effect of Liquidambar formosana wood. The result showed that solution with 0.5g/L extracts had inhibition effect against tested strains, and similar effect of H₃BO₄ against Aspergillus versicolor, Postia placenta, A. niger, A flavus and Trametes versicolor, and even better effect against Lasiodiplodia theobromae compared with H₃BO₄. Solution with 1g/L and 2g/L extracts had same effect of H₃BO₄ against Trichoderma viride and Penicillium visidicatum. L. formosana wood treated by cold maceration in solution with 1g/L extracts with retention of 0.23 g/m².of wood got mildew-proof grade I.