Characterization of odor-active compounds in pechiche (Vitex cymosa Berteo ex Speng) fruit


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Authors

  • Jorge A. Pino https://orcid.org/0000-0002-1079-7151
  • Sonnia E. Barzola-Miranda Universidad Técnica Estatal de Quevedo, Campus Manuel Haz Álvarez. Ave. Quito km 1.5 vía Santo Domingo de los Tsáchilas, EC 120301, Quevedo, Ecuador

Keywords:

Pechiche, Vitex cymosa, HS-SPME, GC-FID, GC-MS, GC-O, odor activity value

Abstract

Pechiche (Vitex cymosa Berteo ex Speng) is a small tree which grows wild in the provinces of the western coastal region of Ecuador. Volatile constituents of pechiche fruit were isolated by headspace-solid phase microextraction (HS-SPME) and analyzed by gas chromatography with flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The global odor captured by the DVB/CAR/PDMS fiber had a high similarity with respect to the original pulp. GC-O frequency analysis and odor activity value (OAV) were applied to find the odor-active compounds. A total of 109 volatile compounds comprising >99% of the composition were identified. The application of the GC-O and OAV strategies afforded 21 odor-active compounds, from which (E)-4-decenal, (E)-2-octenal, octanal, decanal, (E)- 2-decenal, (E)-2-nonenal, 1-octen-3-one and (E,Z)-2,6-nonadienal were the most odor-active compounds.

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Published

2022-12-01

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