The essential oil of Pectis elongata Kunth occurring in north Brazil

✍ Scribed by Milton Helio L. da Silva; Eloisa Helena A. Andrade; José Guilherme S. Maia

• Book ID: 102204857
• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 68 KB
• Volume: 20
• Category: Article
• ISSN: 0882-5734
• DOI: 10.1002/ffj.1546

✦ Synopsis

The oils of Pectis elongata were hydrodistilled and analysed by GC and GC-MS. The major constituents identified in the oils of fresh and dried samples of a specimen collected in Pará state, Brazil, were perilla aldehyde (51.7% and 64.6%) and limonene (43.7% and 33.7%), respectively. The main compound found in the oil of a dried sample of another specimen collected in Amapá state, Brazil, was perilla aldehyde (81.9%), followed by its oxidation derivatives, perilla alcohol (5.6%) and perilla acid (4.0%). The higher percentage of perilla aldehyde in the dried samples is due to the loss of limonene during the drying stage. Probably, the plant oxidation process is initiated in the 1-methyl group of limonene, converting it to perilla alcohol and thence to the other derivatives.