De Gruyter期刊
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作者:Mirosława Krauze-Baranowska , Marian Wiwart
来源:[J].Zeitschrift für Naturforschung C(IF 0.604), 2015, Vol.58 (1-2), pp.65-69De Gruyter
摘要:Bilobetin and 4‴-O-methylamentoflavone were isolated and identified in the needles of Taxus baccata, for the first time in this species. The antifungal activity of biflavones from T. baccata and Ginkgo biloba, namely amentoflavone, 7-O-methylamentoflavone, bilobetin, ginkget...
作者:Mirosława Krauze-Baranowska
来源:[J].Zeitschrift für Naturforschung C(IF 0.604), 2015, Vol.59 (1-2), pp.43-47De Gruyter
摘要:From the needles of Taxus baccata the following flavonoids were isolated: 3-O-rutinosides quercetin, myricetin and kaempferol, 7-O-glucosides kaempferol and quercetin, kaempferol, quercetin, myricetin. The composition of flavonols and biflavones in some of the species of the...
作者:Mirosława Krauze-Baranowska , Loretta Pobłocka , Atef Ahmed El Helab
来源:[J].Zeitschrift für Naturforschung C(IF 0.604), 2015, Vol.60 (9-10), pp.679-685De Gruyter
摘要:Abstract From the leaves of Chamaecyparis obtusa several biflavones were isolated and identified, namely: sciadopitysin, ginkgetin, isoginkgetin, podocarpusflavone B, 7,7″-O-dimethylamentoflavone, bilobetin, podocarpusflavone A, and 7-O-methylamentoflavone. The presence of a...
作者:Mirosława Krauze-Baranowska , Paweł Sowiński ...
来源:[J].Zeitschrift für Naturforschung C(IF 0.604), 2014, Vol.68 (3-4), pp.87-96De Gruyter
摘要:1 Four O-acylated flavonol glycosides, new in the plant kingdom, were isolated from the needles of Pseudotsuga menziesii. Their structures were established by 1D and 2D NMR and MS data as: daglesioside I [kaempferol 3-O-[2’’,5’’-O-(4’’’,4IV-dihydrox...
作者:Mirosława Krauze-Baranowska , Marek Mardarowicz , Marian Wiwart
来源:[J].Zeitschrift für Naturforschung C(IF 0.604), 2015, Vol.57 (11-12), pp.998-1003De Gruyter
摘要:From the leaves of Microbiota decussata (Cupressaceae) biflavones: cupressuflavone, amentoflavone and 7-O-methylamentoflavone were isolated and identified. The amount of cupressuflavone in Microbiota decussata and xCupressocyparis leylandii (Leyland cypress) (Cupressaceae) w...
作者:Mirosława Krauze-Baranowska , Marek Mardarowicz ...
来源:[J].Zeitschrift für Naturforschung C(IF 0.604), 2015, Vol.57 (5-6), pp.478-482De Gruyter
摘要:The chemical composition of the essential oils from the needles of Pinus ponderosa (north american pine), P. resinosa (red pine) and P. strobus (eastern white pine) has been determined by GC/MS (FID). The essential oils from P. resinosa and P. ponderosa in comparison to P. s...
作者:... Piotr Migas , Messaoud Boudjeniba , Mirosława Krauze-Baranowska
来源:[J].Acta Pharmaceutica, 2018, Vol.68 (1), pp.97-107De Gruyter
摘要:Abstract A new HPTLC-densitometric method for diosgenin determination in fenugreek seeds was established after optimization of the conditions for efficient saponin extraction and acid hydrolysis. Several procedures were tested, the best of which was a three-step Soxhlet extractio...
作者:Loretta Pobłocka-Olech , Piotr Migas , Mirosława Krauze-Baranowska
来源:[J].Acta Pharmaceutica, 2018, Vol.68 (2), pp.199-210De Gruyter
摘要:Abstract 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 de...
作者:... Magdalena Zienkiewicz , Barbara Sparzak-Stefanowska , Mirosława Krauze-Baranowska
来源:[J].Acta Pharmaceutica, 2020, Vol.70 (1), pp.101-110De Gruyter
摘要:Abstract A TLC-densitometric method for determination of allantoin in Symphytum officinale root was developed. Densitometric quantification of allantoin was carried out on TLC Si60 plates with butanol-50 % methanol/formic acid, 66.5:33.2:0.3 ( V/V/V) as developing solvent, at a w...

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