Determination of the free radical scavenging activity of Lycium extracts

KOŞAR M., Altintas A., Kirimer N., Baser K.

CHEMISTRY OF NATURAL COMPOUNDS, cilt.39, sa.6, ss.531-535, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 6
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1023/b:conc.0000018104.98378.e2
  • Dergi Adı: CHEMISTRY OF NATURAL COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.531-535
  • Erciyes Üniversitesi Adresli: Hayır

Özet

Lycium species growing in Turkey have not so far been studied sufficiently. For this reason, non-polar and polar extracts obtained from the fruits of Lycium barbarum L. and L. ruthenicum Murray (Solanaceae) were assessed both in vitro for their potential as free radical scavenger crude extracts and their phenolic composition. Fruits of Lycium species were sequentially extracted with petroleum ether, ethyl acetate, methanol, n-butanol, and water in a Soxhlet extractor. All the extracts were assessed for the scavenging of the nitrogen-centered free radical 1, 1'-diphenyl-2-picrylhlydrazvl (DPPH) ky in vitro method. Furthermore, the composition of each extract was investigated both in terms of its Folin-Ciocalteau reactive components and its qualitative content. The phenolic compounds within the extracts were determined as benzoic acid and hydroxycinnamic acid derivatives, flavonoids, and anthocyanins according to their retention time and UV spectral data by HPLC-DAD system.