Abstract:Volatile components in dried fruiting bodies of Boletus auripes Pk.and its fractions with steam distillation and extraction equipment were analyzed by head space analysis GC-MS.The results showed that 59 kinds of volatile components were identified in dried fruiting bodies and 46 kinds in fractions,with percentage contents 61.42% and 55.25% respectively,compared with the total chromatogram volatile constituents.Dried fruiting bodies volatile components mainly included heterocyclic compounds,acids,ketones and esters,and fractions contained ketones,aldehydes,esters and alcohols.The main volatile compounds in dried fruiting bodies were pentanoic acid,2,6-dimethylpyrazine,1-ethyl-2-formylpyrrole,acetophenone,benzaldehyde,2,5-dimethylpyrazine,dihydro-5-methyl-2(3H)-furanone,2-ethyl-5-methylpyrazine and ethanol.The main volatile compounds in fractions were methyl phenylacetate,benzaldehyde,1-octen-3-one,1-octen-3-ol,acetophenone,cyclooctanol and oct-2-enal.Trace volatile components with sulfur atom were found in fractions.Sixteen kinds of volatile components with different content were found in both samples.More species of volatile components were found in dried fruiting bodies than in fractions,while the amounts of volatile components were higher in fractions than in dried fruiting bodies.
