Abstract Phenolic compounds provide important quality attributes to red wines interacting with the organoleptic impact of wines. Yeast mannoproteins can interact grape phenolic compounds, responsible for colour and antioxidant activity The aim this work was perform oenological characterisation specific selection Calabrian strains Saccharomyces sensu stricto . Among considered traits, aptitude y...

This research aimed to examine the phytochemical composition, content of polyphenols and flavonoids, antioxidant capacity ethanolic, ethyl acetate, chloroform extract plant species Thymus serpyllum L. The extracts were tested for presence alkaloids, tannins, saponins, phenolic compounds, steroids, terpenoids, cardiotonic glycosides, coumarins. total was determ ined spectrophotometrically with F...

Background: Medang lendir (Litsea glutinosa), a member of the Lauraceae family, is typically found in Kampar Regency area Riau Province, Indonesia. This plant frequently used traditional medicine to treat rheumatism, diarrhea, and dysentery. Objective: To evaluate antioxidant activities L. glutinosa stem bark extracts. Method: was macerated methanol obtain extract, followed by partitioning with...

In this study, antioxidant and antimicrobial potentials of Usnea intermedia, U. filipendula, and U. fulvoreagens and their stictic and usnic acid contents were investigated. Antioxidant activity and total phenolic contents were evaluated in acetone, ethanol, and methanol extracts of these three species. Antioxidant activity was measured by ABTS [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic...

In this paper, the polyphenol content and antioxidant activity of fig leaf extracts were analyzed. Extraction was performed with methanol, ethanol, acetone their aqueous mixtures (50:50 v/v). Extractions stirring at 300 rpm on a vibromix ultrasonic bath for 15 minutes. The determined spectrophotometrically using Folin-Ciocalteu test. Antioxidant capacity tested FRAP DPPH methods. results showed...

Abstract Phytochemical and antioxidant activity of quinoa flour was evaluated after subjected to gamma irradiation processes at dose 3 6 kGy. Both non-irradiated irradiated samples were successive extractions in ethanol solvent. The treatment investigated via Ferric reducing power (FRAP) radical-scavenging (RSA) using 2,2-diphenyl-1-picrylhydrazyl (DPPH).Total phenolic flavonoid content analyze...

The preliminary phytochemical screening of ethanolic extracts Averrhoa carambola (A. carambola) leaves were done using the standard protocol. findings analysis exhibited occurrence Carbohydrates, Alkaloids, Steroids, Tannins, Vitamin C and flavonoids by Folin-Ciocalteu technique aluminum chloride colorimetric technique, respectively, whole phenolic or flavonoid amounts evaluated found 194.48±0....

Quinoa (Chenopodium quinoa Willd) is a pseudocereal with high nutritional potential and significant content of bioactive compounds, which consumed mainly by the inhabitants South American Andes. The aim this study was to evaluate protein content, total phenols, antioxidant activity grains Salcedo INIA, Pasankalla, Negra collana varieties, germinated for 24 48 hours at 35 °C. Organic were grown ...

Olive leaves (OLL), an agricultural waste by-product, are considered a significant bioresource of polyphenols, known as bioactive compounds. This study evaluates the pulsed electric field (PEF) technique for extraction polyphenols from OLL. The parameters included series “green” solvents (ethanol, water well mixtures them at 25% step gradient) and different input values pulse duration PEF. phyt...

The current work aimed to determine the effects of antioxidant and physicochemical properties sumac fruits on its antimicrobial activity. Samples collected from Mardin Diyarbakır provinces which are located in Turkey’s Southeastern Anatolia were used results compared among each other. taken analysed separately, they exhibited high activities. Analyzes performed aqueous extracts samples. highest...