Head-space volatiles of Gethyllis afra and G. ciliaris fruits ("kukumakranka")

Kamatou G. P. P., Viljoen A. M., ÖZEK T., Baser K. H. C.

SOUTH AFRICAN JOURNAL OF BOTANY, cilt.74, sa.4, ss.768-770, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 74 Sayı: 4
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.sajb.2008.07.002
  • Dergi Adı: SOUTH AFRICAN JOURNAL OF BOTANY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.768-770
  • Anahtar Kelimeler: Ethyl isovalerate, Gethyllis ciliaris, Gethyllis afra, Head-space, Isoamyl acetate, Pentacosane, SPME, alpha-Pinene
  • Anadolu Üniversitesi Adresli: Evet

Özet

The head-space volatiles of Gethyllis afra and G. ciliaris fruits collected in the South Western Cape Province of South Africa were analysed by solid phase micro-extraction (SPME) followed by gas chromatography coupled to mass spectrometry (GC-MS). Twenty-nine compounds were characterized in the fruit of G. ciliaris representing 96.5% of the total composition. Major compounds include pentacosane (19.2%); ethyl octanoate (18.0%); ethyl isovalerate (11.7%); ethyl hexanoate (9.1%) and ethyl benzoate (7.4%). These compounds may be the major contributors to the fruity-sweet odour of G. ciliaris. Forty-three compounds were identified in the fruit of G. afra representing 87.9% of the total composition with alpha-pinene (11.2%), n-butyl n-butyrate (8.5%), isoamyl acetate (8.1%), beta-pinene (6.4%) and 2-methylbutyl butyrate (5.8%) as main constituents. These major constituents may impart the banana/piney/fruity odours associated with the G. afra. The compounds identified in the volatiles of the two fruits in amounts greater than 1% include ethyl butyrate, ethyl isovalerate, isobutyl 3-methyl butyrate, ethyl octanoate and ethyl benzoate. (C) 2008 SAAB. Published by Elsevier B.V. All rights reserved.