Volatilome study of the feijoa fruit [Acca sellowiana (O. Berg) Burret.] with headspace solid phase microextraction and gas chromatography coupled with mass spectrometry

Abstract

Feijoa is a subtropical bush of the Myrtaceae family. It has unique fruit with organoleptic properties that make it an exotic fruit. Head space solid phase microextraction (HS-SPME) with a 65 µm divinylbenzene/polydimethylsiloxane (DVB/PDMS) fiber and gas chromatography coupled to mass spectrophotometry (GC-MS) was used to study the volatile fraction of feijoa fruit cultured in Caldas, Colombia. The profile analyzed included 134 volatile organic compounds (VOCs). 127 VOCs were classified based on the functional group using the spectral and structural networks correlation analysis. Methyl, ethyl and (Z)-3-hexenyl benzoate with 50% of the volatile composition, were the main compounds. Biosynthesis of the volatilome of feijoa fruit was associated with five main metabolic pathways. This study represents the first analysis of feijoa fruit commercialized in the region. This is an innovator view in elucidation of metabolic pathways that represent the biochemistry of the aroma of this fruit.

Keywords: (E)-2-hexenal (PubChem CID: 5281168); (Z)-3-hexenal (PubChem CID: 643941); (Z)-3-hexenyl benzoate (PubChem CID: 5367706); Acca sellowiana; Aroma; Ethyl benzoate (PubChem CID: 7165); Ethyl hexanoate (PubChem CID: 31265); Geraniol (PubChem CID: 637566); Guava; Hexanal (PubChem CID: 6184); Linalool (PubChem CID: 6549); Methyl benzoate (PubChem CID: 7150); Methyl geranoato (PubChem CID: 5365910); VOCs; Volatilome.