USE OF AN ELECTRONIC NOSE FOR FAST CHARAC TERIZING OF VOLATILE AROMA COMPOUNDS OF CARROT VARIETIES

Compared with static headspace on GC (HSGC) the ''electronic nose'' is very suitable to analyse highly volatile compounds of different carro t varieties and distinguish between them. Both methods can detect diff erences between patterns of carrot varieties and the content of total volatile substances in the headspace of the samples. Yet the ''electro nic nose'' measures faster and after drawing up clusters the instrumen t is able to attach single measurements on-line. The ''electronic nose '' delivers a general array of the highly volatile compounds in regard to the qualitative changes as well as the quantitative content. With static HSGC it is possible to record quantitative and qualitative diff erences of single compounds.