Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina
Ester waxes and steryl glycosides of the grass Festuca argentina were studied. Saponification of the waxes from the petroleum ether extract led to n-hexacosanol as the major single linear alcohol, along with pentacyclic triterpenols, such as β-amyrin, germanicol, isobaurenol, lupeol, hopenol-a and h...
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1997
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00244201_v32_n2_p205_Casabuono http://hdl.handle.net/20.500.12110/paper_00244201_v32_n2_p205_Casabuono |
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paper:paper_00244201_v32_n2_p205_Casabuono2023-06-08T14:52:27Z Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina Casabuono, Adriana Cristina Pomilio, Alicia Beatriz alditol arabinose arabinoside beta amyrin campesterol cholesterol ester derivative glucose hexacosanol lupeol phytosterol plant glycoside sitostanol sitosterol stigmasterol triterpene derivative wax xylose article gas liquid chromatography grass lipid composition mass spectrometry sterol analysis Alcohols Chromatography, Gas Esters Glycosides Mass Spectrometry Poaceae Waxes Ester waxes and steryl glycosides of the grass Festuca argentina were studied. Saponification of the waxes from the petroleum ether extract led to n-hexacosanol as the major single linear alcohol, along with pentacyclic triterpenols, such as β-amyrin, germanicol, isobaurenol, lupeol, hopenol-a and hopeol, and low amounts of sterols, such as cholesterol, campesterol, stigmasterol, sitosterol and dihydrositosterol, identified by gas chromatography/mass spectrometry (GC/MS). Fatty acids were identified as methyl esters as C(12:0), C(14:0), C(16:0), C(18:0), C(18:2), and C(20:0). The occurrence of a wide chainlength range of fatty acids and a single linear alcohol closely matched for other reports on the tribe Festuceae. On the contrary, pentacyclic triterpenols with a variety of skeletons, especially isobauerenol, are not usual as esters of fatty acids in the Gramineae. Low amounts of steryl glycosides were also obtained from the methylene chloride percolate of the methanol extract. Upon acetylation followed by hydrolysis, aglycones were identified by capillary gas-liquid chromatography (GLC) and GC/MS. As Δ7-cholesterol, campesterol, stigmasterol, sitosterol, dihydrositosterol, and the sugars and glucose, xylose, and arabinose by GLC of the respective alditol acetates. This is the first report on the linear, steryl, and triterpenyl esters of F. argentina. It is noteworthy that Δ7-steryl glycosides are rare, and steryl monoarabinosides have not been previously reported on the family Gramineae. Fil:Casabuono, A.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pomilio, A.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00244201_v32_n2_p205_Casabuono http://hdl.handle.net/20.500.12110/paper_00244201_v32_n2_p205_Casabuono |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
alditol arabinose arabinoside beta amyrin campesterol cholesterol ester derivative glucose hexacosanol lupeol phytosterol plant glycoside sitostanol sitosterol stigmasterol triterpene derivative wax xylose article gas liquid chromatography grass lipid composition mass spectrometry sterol analysis Alcohols Chromatography, Gas Esters Glycosides Mass Spectrometry Poaceae Waxes |
| spellingShingle |
alditol arabinose arabinoside beta amyrin campesterol cholesterol ester derivative glucose hexacosanol lupeol phytosterol plant glycoside sitostanol sitosterol stigmasterol triterpene derivative wax xylose article gas liquid chromatography grass lipid composition mass spectrometry sterol analysis Alcohols Chromatography, Gas Esters Glycosides Mass Spectrometry Poaceae Waxes Casabuono, Adriana Cristina Pomilio, Alicia Beatriz Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina |
| topic_facet |
alditol arabinose arabinoside beta amyrin campesterol cholesterol ester derivative glucose hexacosanol lupeol phytosterol plant glycoside sitostanol sitosterol stigmasterol triterpene derivative wax xylose article gas liquid chromatography grass lipid composition mass spectrometry sterol analysis Alcohols Chromatography, Gas Esters Glycosides Mass Spectrometry Poaceae Waxes |
| description |
Ester waxes and steryl glycosides of the grass Festuca argentina were studied. Saponification of the waxes from the petroleum ether extract led to n-hexacosanol as the major single linear alcohol, along with pentacyclic triterpenols, such as β-amyrin, germanicol, isobaurenol, lupeol, hopenol-a and hopeol, and low amounts of sterols, such as cholesterol, campesterol, stigmasterol, sitosterol and dihydrositosterol, identified by gas chromatography/mass spectrometry (GC/MS). Fatty acids were identified as methyl esters as C(12:0), C(14:0), C(16:0), C(18:0), C(18:2), and C(20:0). The occurrence of a wide chainlength range of fatty acids and a single linear alcohol closely matched for other reports on the tribe Festuceae. On the contrary, pentacyclic triterpenols with a variety of skeletons, especially isobauerenol, are not usual as esters of fatty acids in the Gramineae. Low amounts of steryl glycosides were also obtained from the methylene chloride percolate of the methanol extract. Upon acetylation followed by hydrolysis, aglycones were identified by capillary gas-liquid chromatography (GLC) and GC/MS. As Δ7-cholesterol, campesterol, stigmasterol, sitosterol, dihydrositosterol, and the sugars and glucose, xylose, and arabinose by GLC of the respective alditol acetates. This is the first report on the linear, steryl, and triterpenyl esters of F. argentina. It is noteworthy that Δ7-steryl glycosides are rare, and steryl monoarabinosides have not been previously reported on the family Gramineae. |
| author |
Casabuono, Adriana Cristina Pomilio, Alicia Beatriz |
| author_facet |
Casabuono, Adriana Cristina Pomilio, Alicia Beatriz |
| author_sort |
Casabuono, Adriana Cristina |
| title |
Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina |
| title_short |
Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina |
| title_full |
Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina |
| title_fullStr |
Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina |
| title_full_unstemmed |
Linear, steroidal, and triterpene esters, and steryl glycosides from Festuca argentina |
| title_sort |
linear, steroidal, and triterpene esters, and steryl glycosides from festuca argentina |
| publishDate |
1997 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00244201_v32_n2_p205_Casabuono http://hdl.handle.net/20.500.12110/paper_00244201_v32_n2_p205_Casabuono |
| work_keys_str_mv |
AT casabuonoadrianacristina linearsteroidalandtriterpeneestersandsterylglycosidesfromfestucaargentina AT pomilioaliciabeatriz linearsteroidalandtriterpeneestersandsterylglycosidesfromfestucaargentina |
| _version_ |
1768546432226164736 |