Wszystkie pola: phenolic profile - Katalog OPAC zbiorów

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Tytuł:: Phenolic profile, chemical relationship and antioxidant activity of Iranian Verbascum species
Autorzy:: Jamshidi-Kia, F.
Saeidi, K.
Lorigooini, Z.
Maggi, F.
Powiązania:: https://bibliotekanauki.pl/articles/2117777.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: HPLC
Chemotaxonomy
Verbascum species
Opis:: Hydro-ethanolic extracts of flowers from four Verbascum species were evaluated for the phenolic content, composition, and antioxidant activity using Folin-Ciocalteu assay, HPLC-DAD analysis, and DPPH assay, respectively. The highest flavonoid content was detected in V. sinuatum extract from Khoramabad (19.91 mg RE/g DW). The extract of V. pseudo-digitalis from Maymand yielded the highest amount of total phenols, together with the highest apigenin and luteolin levels (55.62 mg GAE/g DW, 12.18 and 88.13 μg/mg DW, respectively), while that of V. songaricum from Ardekan showed the highest naringin content (12.44 μg/mg DW). The extract of V. songaricum from Shirmard exhibited the highest quercetin and rutin levels (1.0 and 24.24 μg/mg DW, respectively), whereas that of V. sinuatum from Ardekan had the highest caffeic acid content (7.78 μg/mg DW). The antioxidant activity of Verbascum samples showed IC50 values from 45.12 to 226.62 μg/mL
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2020, 62, 2; 31-42
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Comparison of phenolic profile and in vitro antioxidant capacity of Sorbus domestica L. leaf samples from Poland and Croatia
Autorzy:: Rutkowska, M.
Dybicka, M.
Olszewska, M.A.
Powiązania:: https://bibliotekanauki.pl/articles/2117865.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: antioxidant activity
extract quality
LC-MS
leaves
polyphenolic composition
Sorbus
domestica L.
Opis:: This work presents a comparative analysis of the phenolic composition (UHPLC-PDA-ESI-MS 3 , HPLC-PDA- fingerprint, UV-spectrophotometric methods) and antioxidant activity (DPPH, FRAP) of leaf samples from two vegetation seasons of a medicinal and dietary plant Sorbus domestica growing in its natural habitat (Croatia, C) and cultivated in Poland (P). The samples from both sources were rich in structurally diverse polyphenols (44 analytes; P: 73.4–76.6 and C: 98.3–106.7 mg GAE/g dry leaves) including the dominating flavan-3-ols and flavonoids. The greatest qualitative and quantitative differences were observed for flavonoids (P: 14.3–20.3%; C: 27.5–34.1% of polyphenols) – in the Polish samples flavonoid diglycosides predominated, in the Croatian samples the contents of both monoglycosides and diglycosides were similar. In the case of dry methanolic extracts, despite the higher extraction efficiency obtained for the Croatian samples (32–36% vs 23–24%), the quality of the extracts was comparable, both in terms of the total phenolic content (P: 269.4–280.0; C: 297.6–304.4; mg GAE/g dry extract) and antioxidant activity parameters (DPPH, EC 50 , μg/mL. P: 10.5–10.9, C: 10.0–10.3; and FRAP, mmol Fe 2+/g, P: 6.64–7.13, C: 7.06–7.11). As a result, the study confirmed the influence of environmental conditions on the phenolic profile and antioxidant capacity of S. domestica leaves, as well as showed that despite some differences, plant materials from both Poland and Croatia might be suitable for production of natural health products.
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2019, 61, 1; 63-73
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

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