Chemical Profile and Use of the Peat as an Adsorbent for Extraction of Volatile Compounds from Leaves of Geranium ( Pelargonium graveolens L' Herit)

• Published in: Molecules (Basel, Switzerland) Switzerland), 2020-10, Vol.25 (21), p.4923
• Main Authors: Niculau, Edenilson Dos Santos, Alves, Péricles Barreto, Nogueira, Paulo Cesar de Lima, Romão, Luciane Pimenta Cruz, Cunha, Graziele da Costa, Blank, Arie Fitzgerald, Silva, Anderson de Carvalho
• Format: Article
• Language: English
• Subjects: Acyclic Monoterpenes - analysis; Acyclic Monoterpenes - isolation & purification; Adsorbents; Adsorption; Chromatography; Citronellol; Crotonates - analysis; Crotonates - isolation & purification; Flame ionization; Gas chromatography; Gas Chromatography-Mass Spectrometry; GC/MS; Geranium - chemistry; Headspace; Hemiterpenes - analysis; Hemiterpenes - isolation & purification; Hydrocarbons; Ionization; Leaves; Linalool; Mass spectrometry; Mass spectroscopy; Monoterpenes - analysis; Monoterpenes - isolation & purification; Oils & fats; Oils, Volatile - chemistry; Organic compounds; Peat; Pelargonium graveolens; Plant extracts; Plant Extracts - analysis; Plant Extracts - isolation & purification; Plant Leaves - chemistry; porapak Q; Porosity; Porous materials; Soil - chemistry; Surface Properties; VOCs; Volatile compounds; Volatile organic compounds; Volatile Organic Compounds - analysis; Volatile Organic Compounds - isolation & purification; Volatiles
• ISSN: 1420-3049; 1420-3049
• DOI: 10.3390/molecules25214923

Volatile organic compounds (VOCs) from leaves of geranium ( 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.