Asian Journal of Plant Sciences1682-39741812-5697Asian Network for Scientific Information10.3923/ajps.2007.692.695Helichrysum stoechas]]>SobhyE.A. El-FekyS.S. 4200764Chemical constituents and antimicrobial activity of the essential oils and crude ethanol extract from apical part of Helichrysum stoechas were investigated. The chromatographic and spectrophotometric analysis revealed that the major components of essential oil were alpha-pinene (59%), limonen (16.7%), alpha-bisabolol (9.6%) and beta-carophyllene (4%). The major components of ethanolic extract were 3 isomers of caffeoylquinic acid, 2 isomeric dicaffeoylquinic acids, a pigenin glucosides, quercetin and kaempferol. Both essential oils and ethanolic extracts had significant antimicrobial activity on Staphylococcus aureus, Staphylococcus epidermis and Klebsiella pneumonae in addition to some pathogenic fungi as Candida albicans.]]>Ali-Shtayeh, M.S., R.M.R. Yaghmour, Y.R. Faidi, K. Salem and M.A. Al-Nuri,199860265271Ascensao, L., J.A. Silva, J.G. Barroso, A.C. Figueiredo and L.G. Perdo,2001Helichrysum stoechas.]]>49115122Mansour, M. and S. Tomhamre,20044 synthase in human blood cells by thymoquinone.]]>19431436Blazques, M., A. Bono and M. Zafra-Polo,1990Thymus bargiae a new leriane species of the Hyphodromi section.]]>518230233Carini, M., G. Aldini, S. Furlanetto, R. Stefani and R.F. Facino,2001Helichrysum stoechas.]]>24517526Chinou, I.B., V. Roussis, D. Pedetzoglou, O. Tzakou and A. Loukis,1997Helichrysum species.]]>63181183Hutchings, A. and J. Van Staden,19944389124Jafri, S.M.H. and A.E. Gadi,1980Karam, P.T., F. Garcia and A. Cerda,1999297383Lall, N., A.A. Hussein and J.J.M. Meyer,2006Helichrysum melanacme constituents.]]>77230232Levy, R., V. Meireles and D. Sto,20012325202525Lourens, A.C.U., D. Reddy, K.H.C. Baser, A.M. Viljoen and S.F. van Vuuren,2004In vitro biological activity and essential oil composition of four indigenous South African Helichrysum species.]]>95 253258Mathekga, A.D.M. and J.J.M. Meyer,1998Helichrysum sp.]]>64239295Mericli, A.H., K. Ergezen and B. Cubukcu,1992Helichrysum stoechas subsp.]]>63475475Meyer, J.J.M. and F. Dilika,1996Helichrysum pedunculatum used in circumcision rites.]]>535154Rios, J.L., M.C. Recio and A. Villar,1990Helichrysum stoechas.]]>56646646Rios, J.L., M.C. Recio and A. Villar,1991Helichrysum stoechas.]]>335155Roussis, V., M. Tsoukatou, P.V. Petrakis, I. Chinou, M. Skoula and J.B. Harborne,2000Helichrysum species growing in Greece.]]>28163175Roussis, V., M. Tsoukatou, I.B. Chinou and C. Harvala,2002Helichrysum stoechas varaieties.]]>14459461Sala, A., M. Recio, R.M. Giner, S. Manez, H. Tournier, G. Schinella and J.L. Rios,2002Helichrysum italicum.]]>54365371Sala, A., M.C. Recio, G.R. Schinella, S. Manez, R.M. Giner, M. Cerda-Nicolas and J.L. Rios,20034615361Stafford, G.I., A.K. Jager and J. van Staden,200597107115Tepe, B., M. Sokmen, A. Akpulat and A. Sokmen,2005In vitro antioxidant activities of the methanol extracts of four Helichrysum species from Turkey.]]>90685689Tomas-Barberan, F., E. Iniesta-Sanmartin, F. Tomas-Lorente and A. Rumbero,1990Helichrysum species.]]>2910931095Tsoukatou, M., V. Roussis, I. Chinou, P.V. Petrakis and A. Ortiz,1999Helichrysum species occurring in Spain.]]>11511516Tutin, T.G., V.H. Heywood, N.A. Burges, D.M. Moore, D.H. Valentine, S.M. Walters and D.A. Webb,19801980Van Vurren, S.F., A.M. Viljoen, R.L. Van Zyl, F.R. Van Heerden, K. Husnu and C. Baser,2006Helichrysum cymosum (L.) D. Don subsp. cymosum.]]>72287290Vermin, G. and J.C. Poite,1998Helichrysum stoechas) essential oil.]]>10553557