RESUMEN

Propolis samples from north-west Argentina (Amaicha del Valle, Tucumán) were evaluated by palynology, FT-IR spectra, and RP-HPTLC. In addition, the volatile fraction was studied by HS-SPME-GC/MS. The botanical species most visited by Apis mellifera L. near the apiaries were collected and their RP-HPTLC extracts profiles were compared with propolis samples. In addition, GC/MS was performed for volatile compounds from Zuccagnia punctata Cav. (Fabaceae). FT-IR spectra and RP-HPTLC fingerprints of propolis samples showed similar profiles. In RP-HPTLC analyses, only Z. punctata presented a similar fingerprint to Amaicha propolis. The major volatile compounds present in both were trans-linalool oxide (furanoid), 6-camphenone, linalool, trans-pinocarveol, p-cymen-8-ol, and 2,3,6-trimethylbenzaldehyde. Potential variations for the Amaicha del Valle propolis volatile fraction as consequence of propolis sample preparation were demonstrated.

Asunto(s)

Fitoquímicos/química , Própolis/química , Argentina , Cromatografía Líquida de Alta Presión , Fabaceae/química , Fabaceae/metabolismo , Cromatografía de Gases y Espectrometría de Masas , Microscopía , Aceites Volátiles/química , Fitoquímicos/aislamiento & purificación , Hojas de la Planta/química , Hojas de la Planta/metabolismo , Análisis de Componente Principal , Própolis/aislamiento & purificación , Microextracción en Fase Sólida , Espectroscopía Infrarroja por Transformada de Fourier , Compuestos Orgánicos Volátiles/química , Compuestos Orgánicos Volátiles/aislamiento & purificación