Analysis, occurrence and potential sensory significance of aliphatic aldehydes in white wines

► A method was developed for aliphatic aldehydes in wine without derivatisation. ► The derivatives are injected into a multidimensional system (MDGC/MS). ► It has been determined the occurrence of these compounds in white wines. ► It has been examine the existence of bonded or complexed forms. ► It has been evaluated their potential sensory significance.