The organic components of wood vinegar for Mongolian oak collected at different temperatures were analyzed with Gas Chromatograph-Mass Spectrometer (GC-MS). The results indicated that Mongolian oak wood vinegar was a kind of quite complicated compounds. The organic components changed with smoke temperature: from 80 ℃ to 90 ℃ were mainly alcoholic compounds, from 90 ℃ to 150 ℃ were mostly alcoholic compounds, ketonic components, organic acids and phenolic compounds, while above 150 ℃ were ketonic compounds, acetic acid, alcoholic compounds and phenolic compounds. The optimizing collection temperature was above 90 ℃ so that more organic acids could be obtained. In addition, the organic acid content, pH value and refined yields were various at different collecting temperatures.
Journal of Northeast Forestry University
Mongolian oak wood vinegar
Organic acid content