Abstract
Fungicidal constituents against Rhizoctonia solani and Alternalia mali were isolated from Kuntan (calcined rice chaff) smoke. The fungicidal constituents were phenolics (o, m and p-cresol, 4-ethylphenol, 2, 3, 6-trimethylphenol, 4-n-propylphenol, 4-ethyl-2-methoxyphenol, 4-n-propyl-2-methoxyphenol and 4-allyl-2-methoxyphenol) and α, β-unsaturated-γ-butyro-lactones (2-methyl-4-hydroxy-2-hexenoic acid lactone and 2-ethyl-4-hydroxy-2-pentenoic acid lactone). The anti-pathogenic nature of Kuntan may be due in part to the fungicidal constituents isolated from Kuntan smoke.
