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Olha Мykhailenko Sergiy Chetvernya Ivan Bezruk Yrii Buydin Nadija Dhurenko Olena Рalamarchuk Liudas Ivanauskas Victoriya Georgiyants 《Biomedical chromatography : BMC》2022,36(7):e5369
Iris genus plants are a valuable source of bioactive compounds, which are an important component for pharmaceutical development. The present article shows the potential for mineral nutrition with application of magnesium sulfate, iron chelates and potassium oxide affecting the phenolic compound contents in Iris hybrida ‘Tsikavynka’, I. hybrida ‘Tambo’ and I. hybridа ‘Widecombe Fire’. The effect of mineral processing was specific to plant organs and varied in the component composition. The Iris rhizomes had an increased total phenolic compound content after treatment (up to 10% of the total isoflavonoid content, up to 8% of phenolic acids, up to 5% of γ-pyrones and up to 13% of flavonoids), determined using UV–vis spectroscopy. A positive effect of nutrition on the biosynthesis and content of individual isoflavonoids (tectoridin, nigricin d -glucoside, genistin, iristectorigenin B, nigricin, irigenin and irisolidone) and xanthone mangiferin in Iris rhizomes by HPLC was established. In addition, an increase in the chlorogenic acid amount in Iris leaves was noted. The results demonstrate the sensitivity of Iris phenylpropanoid metabolism to mineral nutrition and can be used to predict medical plant cultivation with increased content of bioactive constituents. 相似文献
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Yurij B. Kuz’ma Volodymyr Babizhetskyj Igor Veremchuk Nadija Chaban 《Journal of solid state chemistry》2004,177(2):425-430
New borides have been synthesized and their crystal structures have been determined using X-ray single-crystal methods, namely: Er0.917Ni4.09B, own structure type, space group P6/mmm, a=14.8399(3), c=6.9194(3) Å, RF=0.0545, and ErNi7B3, own structure type, space group I41/amd, a=7.6577(2), c=15.5798(5) Å, RF=0.0451. The relationship between these structures and the structure types of CeCo4B, Y0.915Ni4.12B and Sc4Ni29B10 has been discussed. 相似文献
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