Headspace solid-phase microextraction and gas chromatography-mass spectrometry analysis of free volatile compounds inMango

Manual headspace—solid-phase microextraction (HS-SPME) gas chromatography-mass spectrometry (GC-MS), a simple, rapid and sensitive method, was employed for the identification and quantitative analysis of the main volatile constituents inMango juice. Nineteen compounds were quantified though standard addition. The main volatile compounds ofMango juice were terpenes, including mono-or sesquiterpene hydrocarbons, such as 1R-α-pinene, 3-carene, α-terpinene, limonene, E-α-ocimene, terpinolene, eremophiladiene, α-caryophyllene, and guaiadiene with concentrations varying from 4 to 8000 μg L−1. The factors affecting quantitative results, including absorption time, speed of stirring and ionic strength are discussed.