Results 41 to 50 of about 3,103 (173)

Total flavonoid content and antioxidant activity of ethanol and ethyl acetate extracts from accessions of Amomum compactum fruits

Annals of Agricultural Sciences, 2021
Fruits of cardamom (Amomum compactum Sol. Ex Maton), Zingiberaceae family, has long been used as herbs and spices. The aim of the research was to evaluate the total flavonoid content and antioxidant activity in ethanol and ethyl acetate of fruit extract ...
Waras Nurcholis, Deysta Nur Sya'bani Putri, Husnawati Husnawati, Syarifah Iis Aisyah, Bambang Pontjo Priosoeryanto   +4 more
doaj   +1 more source

Powdered hibiscus anthocyanin‐nanofibril complexes as natural colourants: Stability and application in yoghurt and soft candy

Coloration Technology, EarlyView.
Abstract The instability of anthocyanins limits their application as natural food colorants. This study aimed to enhance the stability of anthocyanins extracted from Hibiscus sabdariffa through copigmentation with protein nanofibrils produced from pea, rice, gluten and whey isolates. Linear and curly nanofibril structures were prepared and incorporated
Vildan Eyiz, İsmail Tontul, Selman Türker   +2 more
wiley   +1 more source

Evaluating the Antioxidant Capacity of Rheum Ribes via Cupric Reducing Antioxidant Capacity, Ferric Reducing Antioxidant Power and 2,2-Diphenyl-1- picrylhydrazyl Methods

Pharmata
Objective: It was aimed at determining the antioxidant capacity of the above-ground parts of the Rheum ribes species, known as “Iskın,” which grows in the high parts of Erzurum province, using different methods.Methods: Methanol extracts have been ...
Esen Sezen Karaoğlan, Onur Senol, Semih Özli   +2 more
doaj   +1 more source

Antioxidant Capacity of a Turkish Traditional Alcoholic Drink, Raki

Polish Journal of Food and Nutrition Sciences, 2016
Raki is an aniseed flavoured traditional Turkish alcoholic drink. Antioxidant capacity of raki samples from different commercial brands were evaluated by CUPRAC, DPPH, TEAC and ORAC assays and correlations between these assays and total phenolic content ...
Yalcin Gorkem
doaj   +1 more source

Antioxidant Potential of Resveratrol as the Result of Radiation Exposition

Antioxidants, 2022
The purpose of this study was to determine the effect of electron beam irradiation (EBI) at a dose of 25 kGy on the stability and antioxidant properties of resveratrol (RSV), a nutraceutical with clinically proven activity.
Natalia Rosiak, Judyta Cielecka-Piontek, Robert Skibiński, Kornelia Lewandowska, Waldemar Bednarski, Przemysław Zalewski   +5 more
doaj   +1 more source

Synergistic enhancement SPF from annatto seed oil and alkaline extracts in association with organic UV filters

International Journal of Cosmetic Science, EarlyView.
An SPF formulation incorporating Bixa orellana seed extracts and oils showed enhanced UV protection, highlighting the potential of natural bioactive compounds as effective boosters in photoprotective cosmetic products. Abstract Objective This study investigated the antioxidant activity of oil and alkaline aqueous extracts obtained from Bixa orellana ...
Ister Cordeiro Mariotini, Aliny Rodrigues de Jesus da Conceição, Rodrigo Rezende Kitagawa, Bernardo de Jesus Pavuna, Claudia Masrouah Jamal, Claudineia Aparecida Sales de Oliveira Pinto, André Rolim Baby, Fabiana Vieira Lima Solino Pessoa, Mariana Santos Pinheiro   +8 more
wiley   +1 more source

Response of Melissa officinalis subsp. officinalis seedlings to Fe3O4‐NPs under in vitro conditions: physiological, biochemical and molecular analyses

Plant Biology, EarlyView.
Iron oxide nanoparticles influence the growth, antioxidant capacity, and gene activity of Melissa officinalis subsp. officinalis plants in vitro, revealing their potential as modulators of secondary metabolism. Abstract Application of iron oxide nanoparticles (NP) (Fe3O4‐NPs) in plant biotechnology presents new opportunities for enhancing metabolic ...
E. Bektaş, H. Şahin, H. İ. Güler, K. İ. Bektaş, K. Kaltalioğlu, N. E. Uzun   +5 more
wiley   +1 more source

Design, Synthesis, and Biological Evaluation of Chiral Urea and Thiourea Derivatives as Multitarget‐Directed Anti‐Alzheimer Agents

Drug Development Research, Volume 87, Issue 5, August 2026.
ABSTRACT A series of novel chiral urea and thiourea compounds were designed as multitarget‐directed ligands for Alzheimer's disease and evaluated against hAChE, hBChE, and hMAO‐B, with exploratory assessment of HSD10. These chiral compounds were synthesized and fully characterized, and their enantiopurity was confirmed via HPLC.
Sule Erol Gunal, Senel Teke Tuncel, İlke Demir, İpek Baysal, Gökçen Telli, Safiye Sag Erdem, Gulberk Ucar, Michaela Hanzlova, Kamil Musilek, İlknur Dogan, Nesrin Gokhan Kelekci   +10 more
wiley   +1 more source

Measurement of antioxidant ability of melatonin and serotonin by the DMPD and CUPRAC methods as trolox equivalent

Journal of Enzyme Inhibition and Medicinal Chemistry, 2008
Melatonin (N-acetyl-5-methoxytryptamine) is the chief secretory product of the pineal gland and synthesized enzymatically from serotonin (5-hydroxytryptamine). These indoleamine derivatives play an important role in the prevention of oxidative damage.
openaire   +3 more sources

Bioaccessibility of Phytochemicals, Amino Acids, Antioxidant Capacity, and Enzyme Inhibitory Activities of Hawthorn (Crataegus spp.) Fruits Following INFOGEST Simulated Gastrointestinal Digestion

Food Science &Nutrition, Volume 14, Issue 8, August 2026.
Comprehensive compositional and functional characterization of three Crataegus species demonstrated that simulated gastrointestinal digestion substantially altered the bioaccessibility of phenolic compounds and associated biological activities. The pronounced interspecific variation observed highlights the importance of species selection for the ...
Kubra Feyza Erol, Gozde Kutlu, Hatice Bekiroglu, Osman Sagdıc, Fatih Tornuk   +4 more
wiley   +1 more source