antioxidant activity of polyphenolic compounds extracted

antioxidant activity of polyphenolic compounds extracted from

Antioxidant activity of polyphenolic compounds extracted from

Yen and Duh (1993) and Siddhuraju et al. (2002) have reported that the reducing power of bioactive compounds (mainly low and high molecular phenolics), which was extracted from peanut hulls and stem bark of Indian laburnum respectively, was associated with antioxidant activity, specifically scavenging of free radicals.

Contact Suppliers
antioxidant and cytotoxic activity of polyphenolic compounds

Antioxidant and cytotoxic activity of polyphenolic compounds

The extract also showed cytotoxic activity against Hep G2 (IC(50) value 1.41 µg/ml) confirming its anticancer activity against hepatocellular carcinoma. Among the tested compounds (4-8) for antioxidant property, compound 7 was the most active compound (SC(50) = 2.49 µg/ml).

Contact Suppliers
antioxidant activity of polyphenolic compounds obtained from

Antioxidant activity of polyphenolic compounds obtained from

Antioxidant activity of polyphenolic compounds obtained from Euphorbia antisyphilitica by-products Heliyon . 2021 Apr 8;7(4):e06734. doi: 10.1016/j.heliyon.2021.e06734.

Contact Suppliers
antioxidant activities of polyphenols extracted from perilla

Antioxidant activities of polyphenols extracted from Perilla

The mean amount of total phenolics of the water extracts (4-29 micromol/100 mL) and the TEAC value calculated (23-167 micromol TE/100 mL) confirmed the high antioxidant activity of these leaf water extracts. These results were highly correlated within some o-dihydroxylated polyphenolic compounds and AA.

Contact Suppliers
antioxidant activity of polyphenolic extracts of ichnocarpus

Antioxidant activity of polyphenolic extracts of Ichnocarpus

The total antioxidant and free radical scavenging of the polyphenolic extract of I frutescens can be attributed to the presence of enriched polyphenolic compounds. Polyphenols, anthocyanins and flavonoids are very valuable plant constituents in the scavenging of free radicals, due to their several phenolic hydroxyl groups ( Hatano et al., 1988 ).

Contact Suppliers
antioxidant activity of polyphenolic extract of terminalia

Antioxidant activity of polyphenolic extract of Terminalia

The DPPH radical scavenging activity of the polyphenolic extract of T. chebula at different concentrations is shown in Fig. 4 and is compared to the reference compound ascorbic acid. The radical scavenging activity of the extract was the highest at the maximum dose of 150 μg/mL, with an IC 50 value of 14 ± 0.05 μg/mL ( r 2 = 0.976).

Contact Suppliers
antioxidants | free full-text | antioxidant activity of

Antioxidants | Free Full-Text | Antioxidant Activity of

Moreover, the B. orellana seed extract isolated by MAE had higher antioxidant activity and polyphenolic yield than that isolated by leaching . Another “green extraction method,” far IF, was used by Azad et al. [ 43 ] in order to isolate antioxidant polyphenolic compounds from Angelica gigas Nakai.

Contact Suppliers
antioxidant activities of polyphenols extracted from perilla

Antioxidant activities of polyphenols extracted from Perilla

The mean amount of total phenolics of the water extracts (4-29 micromol/100 mL) and the TEAC value calculated (23-167 micromol TE/100 mL) confirmed the high antioxidant activity of these leaf water extracts. These results were highly correlated within some o-dihydroxylated polyphenolic compounds and AA.

Contact Suppliers
antioxidant and antimicrobial activities and uplc-esi-ms/ms

Antioxidant and antimicrobial activities and UPLC-ESI-MS/MS

These variations in the antioxidant activity between extracts can be explained by the differential solubilization of antioxidant compounds, as was reported for citron blood orange (Jayaprakasha and Patil, 2007). The antioxidant capacity of citrus peels might be related to the presence of phenolic compounds and flavonoids.

Contact Suppliers
antioxidant activity of polyphenolic extract of terminalia

Antioxidant activity of polyphenolic extract of Terminalia

The DPPH radical scavenging activity of the polyphenolic extract of T. chebula at different concentrations is shown in Fig. 4 and is compared to the reference compound ascorbic acid. The radical scavenging activity of the extract was the highest at the maximum dose of 150 μg/mL, with an IC 50 value of 14 ± 0.05 μg/mL ( r 2 = 0.976).

Contact Suppliers
in vitro bioaccessibility and antioxidant activity of coffee

In Vitro Bioaccessibility and Antioxidant Activity of Coffee

In Vitro Bioaccessibility and Antioxidant Activity of Coffee Silverskin Polyphenolic Extract and Characterization of Bioactive Compounds Using UHPLC-Q-Orbitrap HRMS Molecules . 2020 May 2;25(9):2132. doi: 10.3390/molecules25092132.

Contact Suppliers
antioxidant and cytotoxic activity of polyphenolic compounds

Antioxidant and cytotoxic activity of polyphenolic compounds

correlated with its phenolic content. The extract also showed cytotoxic activity against Hep G2 (IC 50 value 1.41 µg/ ml) confirming its anticancer activity against hepatocellular carcinoma. Among the tested compounds (4–8) for antioxidant property, compound 7 was the most active compound (SC 50 = 2.49 µg/ml). Also compounds 7 and 8

Contact Suppliers
evaluation of polyphenolic profile and antioxidant activity

Evaluation of Polyphenolic Profile and Antioxidant Activity

Therefore, the aim of this research was to optimize the microwave-assisted extraction of polyphenols from Pistacia lentiscus L. leaves and fruit in terms of temperature, extraction time and microwave power and to evaluate their polyphenolic profile by UPLC/ESI-MS 2 and antioxidant capacity by ORAC assay. Optimal extraction conditions for leaf

Contact Suppliers
polyphenolic composition and antioxidant activity of aqueous

Polyphenolic Composition and Antioxidant Activity of Aqueous

Uncaria tomentosa constitutes an important source of secondary metabolites with diverse biological activities mainly attributed until recently to alkaloids and triterpenes. We have previously reported for the first-time the polyphenolic profile of extracts from U. tomentosa, using a multi-step process involving organic solvents, as well as their antioxidant capacity, antimicrobial activity on

Contact Suppliers
chemical composition, in vitro bioaccessibility and

Chemical Composition, In Vitro Bioaccessibility and

Chemical Composition, In Vitro Bioaccessibility and Antioxidant Activity of Polyphenolic Compounds from Nutraceutical Fennel Waste Extract Molecules . 2021 Mar 31;26(7):1968. doi: 10.3390/molecules26071968.

Contact Suppliers
antioxidant activity of polyphenolic compounds obtained from

Antioxidant activity of polyphenolic compounds obtained from

Polyphenolic compounds Antioxidant activity Ultrasound-assisted extraction ABSTRACT In this study, an alternative extraction technique, ultrasound-assisted extraction, was used to extract the poly-phenolic fraction from two different residues of the candelilla plant (Euphorbia antisyphilitica). These metabolites

Contact Suppliers
optimization of the antioxidant polyphenolic compounds

Optimization of the antioxidant polyphenolic compounds

Extraction was carried out at 80 °C using 70% ethanol concentration for 30 min, which was the most efficient condition to obtain an extract with high concentrations of polyphenolic compounds (3.12 g gallic acid equivalent/100 g seed dry basis) and a strong antioxidant capacity.

Contact Suppliers
antioxidant and cytotoxic activity of polyphenolic compounds

Antioxidant and cytotoxic activity of polyphenolic compounds

correlated with its phenolic content. The extract also showed cytotoxic activity against Hep G2 (IC 50 value 1.41 µg/ ml) confirming its anticancer activity against hepatocellular carcinoma. Among the tested compounds (4–8) for antioxidant property, compound 7 was the most active compound (SC 50 = 2.49 µg/ml). Also compounds 7 and 8

Contact Suppliers
antioxidant and antibacterial activities of polyphenolic

Antioxidant and antibacterial activities of polyphenolic

In this study, we have further characterized the polyphenolic compounds of bitter cumin and also their antioxidant and antibacterial activity using different model systems. The major polyphenolic compounds of cumin seeds were extracted with 70% methanol, 70% acetone, water, separated by HPLC and their structures were elucidated by LC-MS.

Contact Suppliers
polyphenolic composition and antioxidant activities of grape

POLYPHENOLIC COMPOSITION AND ANTIOXIDANT ACTIVITIES OF GRAPE

Keywords: Grape seed extract, Flavan-3-ols, HPLC, Antioxidant activity, ESR spectrometry, White grape variety. INTRODUCTION Polyphenolic compounds are very effective to counteract the oxidative stress and have a protective and beneficial role for human body.[1,2] As GSE contains a lot of

Contact Suppliers
special issue "antioxidant activity of polyphenolic plant

Special Issue "Antioxidant Activity of Polyphenolic Plant

The total phenolic content (TPC = 3.12 g GAE 100 g −1 dry plant material) and antioxidant activity (IC 50 = 120.5 µg cm −3) of the extract obtained by ultrasound-assisted extraction were compared with those obtained by maceration (TPC = 2.54 g GAE 100 g −1 dry plant material, IC 50 = 150.6 µg cm −3) and Soxhlet extraction (TPC = 3.22

Contact Suppliers
polyphenolic composition and antioxidant activity of aqueous

Polyphenolic Composition and Antioxidant Activity of Aqueous

Uncaria tomentosa constitutes an important source of secondary metabolites with diverse biological activities mainly attributed until recently to alkaloids and triterpenes. We have previously reported for the first-time the polyphenolic profile of extracts from U. tomentosa, using a multi-step process involving organic solvents, as well as their antioxidant capacity, antimicrobial activity on

Contact Suppliers
optimization in the extraction of polyphenolic compounds and

Optimization in the extraction of polyphenolic compounds and

The Statgraphics Centurion XVII software used in this study predicted a maximal polyphenolic extraction and antioxidant activity when an ethanol concentration of 78.9%, a temperature of 75.9ºC, and an extraction time of 120 min were used.

Contact Suppliers