GC-MS PROFILING OF VOLATILE COMPOUNDS FROM FIFTEEN DIFFERENT VARIETIES OF INDONESIAN SHALLOT GROWN IN TIDAL SWAMPLAND

Abstract

In this study, fifteen commercial varieties of Indonesian shallot (Allium cepa L.) grown in tidal swamp land were analyzed for Gas Chromatography-Mass Spectrophotometry (GC-MS) profiling of volatile compounds. A total of 64 volatiles were identified in fifteen varieties of Indonesian shallot. The cycloartenol was identified containing a major compound in all shallot varieties. Multivariate data analysis revealed that (23S)-ethylcholest-5-en-3-β-ol, obtusifoliol, pentacosane, furfural, cholesterol, 23 S/R-methylcholesterol, 9, 17-octadecadienal, 1-nonadecene, 14-methylergost- 8-en-3-ol, 14α-methyl-δ8-ergostenol, ergost-5-en-3-ol, octacosane, and docosane contributed the most to classification of different Indonesian shallot varieties. This work provides the complete map of volatiles compound in Indonesian shallot that grown in tidal swampland, with Manjung variety exhibiting the most distinct volatile compounds among studied shallot varieties. The 1-((dicyclohexylphosphorothioyl) methyl) piperidine, volatile sulfurcontaining compounds, was indeed the major component of Majung variety.