Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Nigist Asfaw"'
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 24, Iss 2, Pp 267-271 (2010)
Three sesquiterpenes, 3-O-(3’-acetoxy-2’-hydroxy-2’-methylbutyryl)cuauthemone (1), 4-O-acetylcuauthemone-3-O-angelate (2), 4-O-acetylcuauthemone 3-O-(2’-hydroxy-2’-methyl-3’-acetoxybutyrate) (3) and two flavones, 3’,4’,5,7-tetrahydrox
Externí odkaz:
https://doaj.org/article/add67eb4918c447d8f3e7c9725c1ce27
Publikováno v:
Journal of Essential Oil Research. 28:221-226
The leaves of Lippia javanica are used for the treatment of several skin diseases in Ethiopia. Forty-two components were identified and quantified, by GC–MS and GC–FID, comprising 98.9% of the total oil with cis-sabinene hydrate (20.3%) and limon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eac0e0935a3ff5143f37f2c078a200ff
https://doi.org/10.1080/10412905.2015.1108880
https://doi.org/10.1080/10412905.2015.1108880
Constituents of the Essential Oil ofLaggera tomentosaSch. Bip. ex Oliv. et Hiern Endemic to Ethiopia
Publikováno v:
Journal of Essential Oil Research. 15:102-105
The essential oil from Laggera tomentosa Sch. Bip. ex Oliv. et Hiern (Asteraceae) endemic to Ethiopia was investigated by means of GC, GC/MS and NMR spectroscopy. Forty-nine compounds constituting 94% of the oil were identified. The oil composition w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d24d8e5752c1994667ab7990f382c30
https://doi.org/10.1080/10412905.2003.9712081
https://doi.org/10.1080/10412905.2003.9712081
Autor:
Samantha Tang, Gurbuz Comak, Michael J. Scully, Michael W. George, Jairton Dupont, Richard A. Bourne, Martyn Poliakoff, Emilia S. Streng, Ryan A. Skilton, Jing Jin, Guilherme L. P. Aydos, Zacharias Amara, Raphael Horvath, Nigist Asfaw, Peter A. Summers, Jiawei Wang, Eduardo Pérez
Developing cleaner chemical processes often involves sophisticated flow-chemistry equipment that is not available in many economically developing countries. For reactions where it is the data that are important rather than the physical product, the n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11afc857971e2444ba9ac36e95897d45
https://publications.aston.ac.uk/id/eprint/25420/1/Cloud_Chemistry_published_nchem.2143.pdf
https://publications.aston.ac.uk/id/eprint/25420/1/Cloud_Chemistry_published_nchem.2143.pdf
Publikováno v:
Phytochemistry. 58:489-492
Hydrodistilled oil from leaves of the Ethiopian plant Laggera tomentosa has been shown to contain (−)-chrysanthenone (5%), (−)/(+)-filifolone (92:8; 8%) and (Z)-isogeranic acid (8%)—all likely to be artefacts. The main constituent of the oil, (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4ec6b27b2fbe33bb1c5f608275cef64
https://doi.org/10.1016/s0031-9422(01)00254-0
https://doi.org/10.1016/s0031-9422(01)00254-0
Autor:
Daniel F. Austin, Sebsebe Demissew, Richard Felger, Dorothea Bedigian, Kenneth R. Robertson, Catherine Cotton, Gerald 'Stinger' Guala, Lytton John Musselman, Henrik Balslev, Nigist Asfaw, Deena Decker-Walters, Thomas E. Hemmerly, Charles R. Clement
Publikováno v:
Economic Botany. 54:234-245
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23cb12da95f6fa292452303a4f87e378
https://doi.org/10.1007/bf02907828
https://doi.org/10.1007/bf02907828
Publikováno v:
Flavour and Fragrance Journal. 15:27-30
The volatile oils of the flowers and leaves of two collections (1997 and 1998) of the Ethiopian plant Salvia schimperi (Lamiaceae), have been examined separately by means of GC, chiral GC, GC-MS, GC-FTIR. 1 H- and 13 C-NMR. The main constituents of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93c5649e685e5718424d17d0f046d816
https://doi.org/10.1002/(sici)1099-1026(200001/02)15:1<27::aid-ffj868>3.0.co
https://doi.org/10.1002/(sici)1099-1026(200001/02)15:1<27::aid-ffj868>3.0.co
Publikováno v:
Phytochemistry. 52:1491-1494
Enantiomerically pure (1 S ,5 R )-(−)-2,4,4-trimethylbicyclo[3.1.1]hept-2-en-6-one has been found along with chrysanthenone, thymoquinol dimethyl ether and two stereoisomers of dehydrocitral in the essential oil of Laggera tomentosa , which is ende
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92ada184efee7c571b55e585fde18c3e
https://doi.org/10.1016/s0031-9422(99)00373-8
https://doi.org/10.1016/s0031-9422(99)00373-8
Autor:
Daniel F. Austin, Kenneth R. Robertson, Dorothea Bedigian, Mary Eubanks, Nigist Asfaw, Sebsebe Demissew
Publikováno v:
Economic Botany. 52:337-340
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e64e5140ae160f1a54f8ae932f271616
https://doi.org/10.1007/bf02862152
https://doi.org/10.1007/bf02862152
Autor:
Kenneth R. Robertson, Dorothea Bedigian, Daniel F. Austin, Nigist Asfaw, Sebsebe Demissew, Richard Felger, Neil A. Harriman, Cath Cotton, Lytton John Musselman, Edward D. Stone, Timothy Johns, Shengquan Liu, Richard J. Campbell, Joseph A. Weinstock, Will Mcclatchey, Julie Anne Ferguson Demers
Publikováno v:
Economic Botany. 52:211-226
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c2215c1032cf01e0dda6979ddf33e84
https://doi.org/10.1007/bf02861215
https://doi.org/10.1007/bf02861215