Temat: elderflower - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Bioactive properties of elderflowers (Sambucus nigra L.)
Autorzy:: Młynarczyk, Karolina
Walkowiak-Tomczak, Dorota
Powiązania:: https://bibliotekanauki.pl/articles/1178436.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Sambucus nigra L.
antioxidant activity
elderflower
phenolic compounds
Opis:: Elderflower is a valuable herbal raw material widely used in food, pharmaceutical and cosmetic industry. It is a rich source of bioactive compounds, such as polyphenols (e.g. chlorogenic acid, rutin, quercetin), that are responsible for their health benefits. Elderberry flowers demonstrate mainly diaphoretic, antipyretic, diuretic, antibacterial and anti-inflammatory properties and have been used in folk medicine as remedy for various ailments and diseases. The aim of the study was to evaluate selected bioactive properties of fresh and dried elderberry flowers, depending on the origin. Flowers were collected from three locations of wild elderberry shrubs and from three cultivars (Sampo, Haschberg, Samyl) growing on plantation. Methanolic extracts of fresh and dried flowers were analyzed in terms of the antioxidant activity using ABTS radical method and the total phenolic content by Folin-Ciocalteau reagent method. The results were statistically analyzed by Anova in Statistica 12.5 program. The obtained results indicate that drying process causes a deterioration of bioactive properties of elder flowers. Fresh flowers demonstrated significantly higher antioxidant activity as well as higher total phenolic content than dried flowers. Furthermore, flowers of wild elderberry differed from flowers of cultivated elderberry. In most cases, flowers of cultivars showed higher values of analyzed parameters compared to the wild elder flowers. The highest average antioxidant activity and the highest average content of total polyphenols was found in flowers of Sampo cultivar.
Źródło:: World Scientific News; 2017, 73; 114-118
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Tytuł:: QUALITY ANALYSIS OF SEMISOLID FORMULATIONS WITH ELDERFLOWER (SAMBUCUS NIGRA L.) LIQUID EXTRACT
Autorzy:: Ramanauskiene, Kristina
Inkeniene, Asta M.
Puidokaite, Erika
Grigonis, Aidas
Powiązania:: https://bibliotekanauki.pl/articles/895423.pdf
Data publikacji:: 2019-12-29
Wydawca:: Polskie Towarzystwo Farmaceutyczne
Tematy:: extract
bigel
elderflower
biopharmaceutical in vitro
Opis:: The active ingredients in the Elderflower liquid extract are responsible for the antibacterial, antioxidant and anti-inflammatory effects of the plant. The aim of the study was to design semisolid formulations with liquid Elderflower extract and evaluate the quality of them using a biopharmaceutical research method in vitro. The quality of the Elderflower (Sambucus nigra L.) extracts were evaluated spectrophotometrically by determining the total polyphenols and flavonoids content. Antiradical activity was determined by employing the spectrophotometrically DPPH free radical scavening method. Antibacterial activity was determined in vitro using the agar diffusion method. The biopharmaceutical experiment in vitro of the semisolid pharmaceutical formulations was performed by using modified Franz type diffusion cells. The results revealed that the highest amount of active compounds were found in the extracts when 70% (v/v) ethanol was used for the extraction of the raw material. The extracts obtained have antiradical activity and antimicrobial effects against S. aureus and B. cereus. Released amount of active compounds decreased when oleogel concentration in the formulation increased. The in vitro results of a biopharmaceutical semisolid formulation study showed that the base and the amount of excipients affected the release kinetics of the active compounds from the formulations. The results of the study showed that, as the lipophilicity and viscosity of the base increase, the formulation is characterized by a prolonged action: the release of the flavonoids, with the increase in the amount of oleogel, slow down. The best carrier of ederflower liquid extract was confirmed the hydrophilic base.
Źródło:: Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 6; 1061-1071
0001-6837
2353-5288
Pojawia się w:: Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:: Biblioteka Nauki

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