Chemical Profile and Use of the Peat as an Adsorbent for Extraction of Volatile Compounds from Leaves of Geranium (<i>Pelargonium graveolens</i> L’ Herit)
Edenilson dos Santos Niculau,
Péricles Barreto Alves,
Paulo Cesar de Lima Nogueira,
Luciane Pimenta Cruz Romão,
Graziele da Costa Cunha,
Arie Fitzgerald Blank,
Anderson de Carvalho Silva
Affiliations
Edenilson dos Santos Niculau
Curso de Química, Centro de Ciências Integradas, Universidade Federal do Tocantins, Av. Paraguai, s/n–esquina com Rua Uxiramas, Araguaína 77824-838, TO, Brazil
Péricles Barreto Alves
Departamento de Química, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil
Paulo Cesar de Lima Nogueira
Departamento de Química, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil
Luciane Pimenta Cruz Romão
Departamento de Química, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil
Graziele da Costa Cunha
Departamento de Química, Universidade Federal de Sergipe, São Cristóvão 49100-000, SE, Brazil
Arie Fitzgerald Blank
Departamento de Engenharia Agronômica, Universidade Federal de Sergipe, São Cristóvão 49100-000, Brazil
Anderson de Carvalho Silva
Departamento de Engenharia Agronômica, Universidade Federal de Sergipe, São Cristóvão 49100-000, Brazil
Volatile organic compounds (VOCs) from leaves of geranium (Pelargonium graveolens L’ Herit) were extracted by dynamic headspace using Porapak Q (HSD-P) as adsorbent and peat, a novel adsorbent in the extraction of plant volatiles, analyzed by gas chromatography–mass spectrometry (GC/MS) and gas chromatography–flame ionization (GC/FID), and the results were compared with those obtained by hydrodistillation (HD). The yield volatiles changed with the extraction method. HD was more efficient for extracting linalool (11.19%) and citronellyl formate (9.41%). Citronellol (28.06%), geraniol (38.26%) and 6,9-guaiadiene (9.55%) and geranyl tiglate (8.21%) were the major components identified by dynamic headspace using peat (HSD-T), while citronellol (16.88%), geraniol (13.63%), 6,9-guaiadiene (16.98%) and citronellyl formate (6.95%) were identified by dynamic headspace using Porapak Q (HSD-P). Furthermore, this work showed, for the first time, that in natura peat is useful to extract VOCs from leaves of geranium.
