Yazar "Viljoen, Alvaro M." için listeleme
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The in vitro pharmacological activities and a chemical investigation of three South African Salvia species
Kamatou, G. P. P.; Viljoen, Alvaro M.; Gono-Bwalya, AB; van Zyl, Robyn L.; Van, Vuuren, S. F.; Lourens, ACU; Steenkamp, P (Elsevier Ireland LTD, 2005)Salvia species (sage) are well known in folk medicine throughout the world. In South Africa sage is used against fever and digestive disorders. Three closely related South African species (Salvia stenophylla, Salvia repens ... -
Micro distillation and essential oil chernistry - a useful tool for detecting hybridisation in Plectranthus (Lamiaceae)
Viljoen, Alvaro M.; Demirci, Betül; Başer, K. Hüsnü Can; Potgieter, C. J.; Edwards, T. J. (Elsevier Science BV, 2006)The essential oil composition is reported for Plectranthus ciliatus, Plectranthus zuluensis and their putative hybrid. The essential oil chemistry is in support of morphological data and pollination studies, which have ... -
Rare sesquiterpenes from South African Pteronia species
Viljoen, Alvaro M.; Kamatou, G. P. P.; Coovadia, Z. H.; Özek, Temel; Başer, K. Hüsnü Can (Elsevier Science BV, 2010)The genus Pteronia consists of approximately 80 species which are widely distributed in southern Africa. The essential oils isolated from the aerial parts of eleven species, analyzed by GC-MS varied both qualitatively and ... -
Seasonal and geographical variation of Heteropyxis natalensis essential oil and the effect thereof on the antimicrobial activity
Van Vuuren, Sandy; Viljoen, Alvaro M.; Özek, Temel; Demirci, Betül; Başer, K. Hüsnü Can (Elsevier Science BV, 2007)Heteropyxis natalensis (Heteropyxidaceae) is traditionally used to treat respiratory disorders, and as a decongestant and antimicrobial agent. The seasonal variation of the hydrodistilled essential oil was investigated. ... -
A seasonal variation study of the chemical composition and antimicrobial activity of the essential oil of Agathosma ovata (Thunb.) Pillans (Rutaceae)
Viljoen, Alvaro M.; Moolla, Aneesa; van Vuuren, Sandy F.; Başer, K. Hüsnü Can; Demirci, Betül; Özek, Temel (Allured Publ Corp, 2006)A seasonal variation study was performed on the chemical composition of the essential oil of Agathosma ovata (Rutaceae). In addition, this study looked at how variations may impact the antimicrobial activity of A. ovata. ...