Chemical Composition and Antioxidant Activity of Extract from the Wood of Fagus orientalis: Water Resistance and Decay Resistance against Trametes versicolor

Seyyed Khalil Hosseinihashemi, Mohamed Z. M. Salem, Sayed Khosrow HosseinAshrafi, Ahmad Jahan Latibari

Abstract


Extracted wood samples of Fagus orientalis with different solvents were analyzed for their antifungal activity against white-rot fungus (Trametes versicolor) in an agar plate. The most active extract was analyzed for its antioxidant activity by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method, and the chemical composition were analyzed using gas chromatography-mass spectrometry. After the solvent removal of extractives, especially using chloroform (Chl) and Chl-water mixture, losses in the resistance of beech wood had occurred. However, Chl extract was found to be the most active antifungal agent, and the weight loss (30.38%) of specimens after 14 weeks of incubation was higher than that of other extracted specimens. At the concentration of 0.016 mg/mL, the highest activity observed was by Chl extract (89.45%), which was lower than the value of vitamin C (96.63%) at the same concentration. The lowest weight loss values obtained from the decay test were 0.35% and 0.64% for ethanol and ethanol-water extracted beech wood samples, respectively. The highest weight loss values were 30.38% and 23.98% for Chl and Chl-water extracted samples, respectively.

Keywords


Fagus orientalis wood; Chloroform extract; Antifungal and antioxidant activity; GC/MS; Trametes versicolor

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