phytosterols and hecogenin

phytosterols has been researched along with hecogenin* in 2 studies

Other Studies

2 other study(ies) available for phytosterols and hecogenin

Article	Year
An improved facile method for extraction and determination of steroidal saponins in Tribulus terrestris by focused microwave-assisted extraction coupled with GC-MS. Journal of separation science, 2009, Volume: 32, Issue:23-24 An improved fast method for extraction of steroidal saponins in Tribulus terrestris based on the use of focus microwave-assisted extraction (FMAE) is proposed. Under optimized conditions, four steroidal saponins were extracted from Tribulus terrestris and identified by GC-MS, which are Tigogenin (TG), Gitogenin (GG), Hecogenin (HG) and Neohecogenin (NG). One of the most important steroidal saponins, namely TG was quantified finally. The recovery of TG was in the range of 86.7-91.9% with RSD<5.2%. The convention heating reflux extraction was also conducted in order to validate the reliability of this new FMAE method. The yield of total steroidal saponins was 90.3% in a one-step FMAE, while the yield of 65.0% was achieved during heating reflux extraction, and the extraction time was reduced from 3 h to 5 min by using less solvent. The method was successfully applied to analyze the steroidal saponins of Tribulus terrestris from different areas of occurrence. The difference in chromatographic characteristics of steroidal saponins was proved to be related to the different areas of occurrence. The results showed that FMAE-GC-MS is a simple, rapid, solvent-saving method for the extraction and determination of steroidal saponins in Tribulus terrestris. Topics: Drugs, Chinese Herbal; Gas Chromatography-Mass Spectrometry; Microwaves; Phytosterols; Plants, Medicinal; Sapogenins; Saponins; Spirostans; Tribulus	2009
Three new hecogenin glycosides from fermented leaves of Agave americana. Journal of Asian natural products research, 2003, Volume: 5, Issue:2 Eight steroidal compounds, including three new hecogenin glycosides, agamenosides D-F, were isolated from the fermented leaves of Agave americana. The structures of the new steroidal saponins were elucidated by spectroscopic data and chemical methods. The activity of the isolated compounds on deformations of mycelia germinated from conidia of Pyricularia oaryzae P-2b was evaluated. Topics: Agave; Carbohydrate Sequence; Fermentation; Glycosides; Magnaporthe; Molecular Sequence Data; Nuclear Magnetic Resonance, Biomolecular; Optical Rotation; Phytosterols; Plant Leaves; Sapogenins; Spectrometry, Mass, Fast Atom Bombardment; Spectrophotometry, Infrared	2003

Article

Year

An improved facile method for extraction and determination of steroidal saponins in Tribulus terrestris by focused microwave-assisted extraction coupled with GC-MS.

Journal of separation science, 2009, Volume: 32, Issue:23-24

An improved fast method for extraction of steroidal saponins in Tribulus terrestris based on the use of focus microwave-assisted extraction (FMAE) is proposed. Under optimized conditions, four steroidal saponins were extracted from Tribulus terrestris and identified by GC-MS, which are Tigogenin (TG), Gitogenin (GG), Hecogenin (HG) and Neohecogenin (NG). One of the most important steroidal saponins, namely TG was quantified finally. The recovery of TG was in the range of 86.7-91.9% with RSD<5.2%. The convention heating reflux extraction was also conducted in order to validate the reliability of this new FMAE method. The yield of total steroidal saponins was 90.3% in a one-step FMAE, while the yield of 65.0% was achieved during heating reflux extraction, and the extraction time was reduced from 3 h to 5 min by using less solvent. The method was successfully applied to analyze the steroidal saponins of Tribulus terrestris from different areas of occurrence. The difference in chromatographic characteristics of steroidal saponins was proved to be related to the different areas of occurrence. The results showed that FMAE-GC-MS is a simple, rapid, solvent-saving method for the extraction and determination of steroidal saponins in Tribulus terrestris.

Topics: Drugs, Chinese Herbal; Gas Chromatography-Mass Spectrometry; Microwaves; Phytosterols; Plants, Medicinal; Sapogenins; Saponins; Spirostans; Tribulus

2009

Three new hecogenin glycosides from fermented leaves of Agave americana.

Journal of Asian natural products research, 2003, Volume: 5, Issue:2

Eight steroidal compounds, including three new hecogenin glycosides, agamenosides D-F, were isolated from the fermented leaves of Agave americana. The structures of the new steroidal saponins were elucidated by spectroscopic data and chemical methods. The activity of the isolated compounds on deformations of mycelia germinated from conidia of Pyricularia oaryzae P-2b was evaluated.

Topics: Agave; Carbohydrate Sequence; Fermentation; Glycosides; Magnaporthe; Molecular Sequence Data; Nuclear Magnetic Resonance, Biomolecular; Optical Rotation; Phytosterols; Plant Leaves; Sapogenins; Spectrometry, Mass, Fast Atom Bombardment; Spectrophotometry, Infrared

2003