A study of the alcohol extract from balsam poplar buds

Isaeva, E. V.; Ложкина, Г. А.; Ryazanova, T. V.

doi:10.1134/s1068162010070228

Cited by 12 publications

(17 citation statements)

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“…No influence of the evaluation mode used on the classification order of Populus buds, as the richest sources of both flavanones, was observed. Contents of pinocembrin and pinostrobin studied in poplar buds were in the previously reported ranges (3,7,8,12) but lower than in poplar resins (8,13).…”

Section: Assaying Of Pinocembrin and Pinostrobin In Poplar Budsmentioning

confidence: 42%

“…Similar TLC chromatographic profiles with galangin as the dominating compound showed extracts from the buds of Populus × canadensis 'Marilandica' and P. simonii, while the TLC chromatogram of P. nigra 'Italica' extract was similar to that of P. candicans. Comparison of the hR f values and spot fluorescence at 366 nm confirmed the presence of the following: pinocembrin in the buds of poplars from sections Aigeiros and Tacamahaca (6,17), pinostrobin in P. balsamifera (7), galangin in P. × canadensis 'Robusta' (17), apigenin in P. balsamifera (6), P. × canadensis 'Marilandica' (6), P. × canadensis 'Robusta' (6) and P. simonii (6), kaempferol in P. × canadensis 'Marilandica' (8), chrysin in P. × canadensis 'Marilandica' (6), P. candicans (1,6) and P. simonii (6), pinobanksin in P. × canadensis 'Marilandica' (6) and P. × canadensis 'Robusta' (6,17), tectochrysin in P. nigra 'Italica' (6) and P. × canadensis 'Marilandica' (6), and genkwanin in P. balsamifera (6,18) (Fig. 1).…”

Section: Qualitative Screening Of Poplar Bud Extractsmentioning

confidence: 63%

“…Preliminary TLC and HPTLC separations were carried out using a standard mixture comprising 17 flavonoid aglycones, decribed as constituents of poplar type propolis, that is, six flavones (apigenin, luteolin, genkwanin, chrysin, chrysin 5,7-dimethylether, tectochrysin), five flavonols (galangin, isorhamnetin, kaempferol, quercetin, myricetin), five flavanones (eriodictyol, naringenin, pinocembrin, pinostrobin, pinocembrin 5,7-dimethylether) and one flavanonol (pinobanksin). Optimization of chromatographic separation from methanolic extracts of Populus buds was performed by testing systems previously used for botanical classification of propolis (Table III) (7)(8)(9)(10)17).…”

Section: Resultsmentioning

confidence: 99%

“…Major flavonoid constituents are chrysin, galangin and pinocembrin, which are usually accompanied with pinostrobin, tectochrysin and pinobanksin-3-acetate (6). Furthermore, many other compounds were discovered mainly by the GC-MS method (7)(8)(9)(10)(11). GC separation of flavonoids is time-consuming due to the necessary sample derivatization before analysis.…”

mentioning

confidence: 99%

“…GC separation of flavonoids is time-consuming due to the necessary sample derivatization before analysis. There are only a few studies focusing on the flavonoid content determination in Populus buds (3,4,7,8,12,13). Flavonoids can play an important role in the pharmacological effects of poplar buds in terms of their antioxidant and anti-inflammatory properties.…”

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confidence: 99%

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TLC determination of some flavanones in the buds of different genus Populus species and hybrids

2018

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Flavonoids in the buds of eight Populus species and hybrids were detected and compared with the aid of an optimized TLC method. Separation of 17 flavonoid aglycones belonging to different groups, namely, flavones, flavonols, flavanones and flavanonols, previously described as constituents of poplar buds, was performed on silica gel plates using a hexane/ethyl acetate/formic acid (60:40:1.3, V/V/V) mixture as the mobile phase. Pinocembrin and pinostrobin were found in the majority of analyzed poplar buds. For quantitative analysis of both compounds, two TLC evaluation modes, densitometric and videodensitometric, were compared and the established methods were validated. Concentrations of flavanones in some extracts differed slightly or significantly due to the analyzed plant matrix complexity and the TLC evaluation mode applied. Poplar buds rich in flavanones originated from P. × canadensis 'Robusta' (1.82 and 2.23 g per 100 g, resp.) and P. balsamifera (1.17 and 2.24 g per 100 g, resp.).

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Section: Assaying Of Pinocembrin and Pinostrobin In Poplar Budsmentioning

confidence: 42%

Section: Qualitative Screening Of Poplar Bud Extractsmentioning

confidence: 63%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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TLC determination of some flavanones in the buds of different genus Populus species and hybrids

2018

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Pattern recognition methods and multivariate image analysis in HPTLC fingerprinting of propolis extracts

Ristivojević¹,

Andrić

Trifković

et al. 2014

Journal of Chemometrics

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High‐performance thin‐layer chromatography (HPTLC) combined with image analysis and pattern recognition methods were used for fingerprinting and classification of 52 propolis samples collected from Serbia and one sample from Croatia. Modern thin‐layer chromatography equipment in combination with software for image processing and warping was applied for fingerprinting and data acquisition. The three mostly used chemometric techniques for classification, principal component analysis, cluster analysis and partial least square‐discriminant analysis, in combination with simple and fast HPTLC method for fingerprint analysis of propolis, were performed in order to favor and encourage their use in planar chromatography. HPTLC fingerprint analysis of propolis was for the first time performed on amino silica plates. All studied propolis samples have been classified in two major types, orange and blue, supporting the idea of existence of two types of European propolis. Signals at specific RF values responsible for classification of studied extracts have also been isolated and underlying compounds targeted for further investigation. Copyright © 2014 John Wiley & Sons, Ltd.

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Bioprofiling of Salicaceae bud extracts through high-performance thin-layer chromatography hyphenated to biochemical, microbiological and chemical detections

Hage

Morlock

2017

Journal of Chromatography A

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A study of the alcohol extract from balsam poplar buds

Cited by 12 publications

References 1 publication

TLC determination of some flavanones in the buds of different genus Populus species and hybrids

TLC determination of some flavanones in the buds of different genus Populus species and hybrids

Pattern recognition methods and multivariate image analysis in HPTLC fingerprinting of propolis extracts

Bioprofiling of Salicaceae bud extracts through high-performance thin-layer chromatography hyphenated to biochemical, microbiological and chemical detections

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