Natural Products from Orobanche coerulescens
Natural Products Isolated from Orobanche coerulescens
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Natural Products from Orobanche coerulescens
1 natural product associated with Orobanche coerulescens
References
[A new phenethyl alcohol glycoside from Orobanche coerulescens].[Pubmed: 29027429]
The constituents of the whole plant of Orobanche coerulescens were isolated and purified by using various column chromatographic techniques including D101, silica gel and ODS. The structures were identified by spectroscopic analyses including NMR and MS. A new phenylethanol glycoside was isolated from the whole plant of O. coerulescens, and was identified as 2-(3-methoxy-4-hydroxyphenyl)-ethanol-1-O- [(1→3)-O-α-L-rhamnopyranosyl-4, 6-O-di-feruloyl]-β-D-glucopyranoside, named as orobancheoside B. Through the antibacterial activity test, orobancheoside B was proved to have certain antibacterial activity, and be one of the main active components of O. coerulescens. The research result will laid a foundation for the medicinal materials and quality control research. Activity screening, broomrape orobancheoside B has certain antibacterial activity, as one of the main active components of O. coerulescens, and to constantly improve the quality of the medicinal materials laid a foundation.
[Determination of phenylethanoid glycosides in Orobanche coerulescens].[Pubmed: 27071260]
Orobanche caerulescens is an important medicinal resource in Orobanchaceae. The present study aims to establish methods for determination of acteoside, crenatoside, and total phenylethanoid glycosides in O. caerulescens, and determine the content in 15 samples to evaluate the resource utilization of this medicinal plant. The content of acteoside and crenatoside were quantitatively determined by HPLC, while total phenylpropanoid glycosides was estimated by UV-VIS spectrophotometry. According to the results, the content of acteoside was the highest in O. caerulescens, followed by crenatoside. The contents of acteoside, crenatoside, and total phenylethanoid glycosides were between 1.15% - 15.60%, 0.83% - 4.47%, and 6.78% - 27.43%, respectively, which had significant differences. The acquisition time has great influence on the content of main components of O. caerulescens. The content of phenylethanoid glycosides is higher in the samples which were collected at the flowering stage. The two determination methods were proved to be simple, accurate and reliable, and can be used to evaluate the quality and resource utilization of O. caerulescens.
[Study on chemical constituents of Orobanche coerulescens].[Pubmed: 18300497]
Six compounds were isolated and purified from Orobanche coerulescens by extraction and different kinds of column chromatography. The structures were determined on the basis of spectral analysis. The structures were elucidated as D-mannitol(I), beta-sitosterol(II), succinic acid(III), caffeic acid(IV), protocatechuic aldehyde(V) and daucosterol(VI). All compounds are obtained from this plant for the first time.
[Herbalogical studies on rou congrong (herba Cistanchis)].[Pubmed: 8011120]
This paper deals with the investigation of the original plants of Rou Congrong and Cao Congrong recorded in the herbalogical works of the past dynasties. The results have shown that Rou Congrong is the dried fleshy stem of Cistanche deserticola and C. salsa, and Cao Congrong is the dried fleshy stem of Orobanche coerulescens. The substitutes and false drugs of Rou Congrong were also investigated.