Abstract:

Thermal-desorption cryo-trapping gas chromatography/mass spectrometry (TCT-GC/MS) based on dynamic head-space sampling was adopted to analyze volatile composition of jackfruit peel and flesh. Results showed that jackfruit peel and flesh were both rich in esters. Higher n-propyl acetate and n-hexyl acetate contents were observed in jackfruit peel than in flesh, whereas methyl isoamyl, butyl valerate and ethyl butyrate exhibited a higher content in jackfruit flesh than in peel. The content of ethyl n-valerate in jackfruit peel was close to that in flesh. No other esters as well as alcohols, carboxylic acids (anhydrides), nitrogen - containing and sulfate-containing compounds were simultaneously detected in jackfruit peel and flesh. No aldehydes, ethers and terpenes were detected in jackfruit peel, whereas jackfruit flesh contained them.

Key words: Artocarpus heterophyllus, volatile, thermal-desorption cryo-trapping gas chromatography/mass spectrometry (TCT-GC/MS), ester