The aim of this study was to determine the composition and content of phenolic compounds in the ethanol extracts of apple leaves and to evaluate the antioxidant activity of these extracts. The total phenolic content was determined spectrophotometrically, as well as the total flavonoid content in the ethanol extracts of apple leaves and the antioxidant activity of these extracts, by the ABTS, DPPH, and FRAP assays. The highest amount of phenolic compounds and flavonoids as well as the highest antioxidant activity was determined in the ethanol extracts obtained from the apple leaves of the cv. Aldas. The analysis by the HPLC method revealed that phloridzin was a predominant component in the ethanol extracts of the apple leaves of all cultivars investigated. The following quercetin glycosides were identified and quantified in the ethanol extracts of apple leaves: hyperoside, isoquercitrin, avicularin, rutin, and quercitrin. Quercitrin was the major compound among quercetin glycosides.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4180900 | PMC |
| http://dx.doi.org/10.1155/2014/306217 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Expression Analysis of Cyst Specific Protein (CSP21) and Cellulose Synthase II (CSII) Genes in Acanthamoeba castellanii Trophozoites Exposed to Silver Nanoparticles Conjugated with Elaeagnus umbellata.
Acta Parasitol
January 2025
Department of Molecular Biology and Genetics, Ordu University, Ordu, Turkey.
Purpose: Acanthamoeba species are eucaryotic protozoa found predominantly in soil and water. They cause ulceration and vision loss in the cornea (Acanthamoeba keratitis) and central nervous system (CNS) infection involving the lungs (granulomatous amoebic encephalitis). Antiparasitic drugs currently used in the treatment of infections caused by Acanthamoeba species are not effective at the desired level in some anatomical regions such as the eye and CNS.
View Article and Find Full Text PDFMetabolomics analyses and comparative insight to neuroprotective potential of unripe fruits and leaves of Citrus aurantium ethanolic extracts against cadmium-induced rat brain dysfunction: involvement of oxidative stress and akt-mediated CREB/BDNF and GSK3β/NF-κB signaling pathways.
Metab Brain Dis
January 2025
Pharmacognosy Department, National Research Centre (NRC), El Behouth St., P.O. 12622, Cairo, Egypt.
Serious neurological disorders were associated with cadmium toxicity. Hence, this research aimed to investigate the potential neuroprotective impacts of the ethanolic extracts of Citrus aurantium unripe fruits and leaves (CAF and CAL, respectively) at doses 100 and 200 mg/kg against cadmium chloride-provoked brain dysfunction in rats for 30 consecutive days. HPLC for natural pigment content revealed that CAF implied higher contents of Chlorophyll B, while the CAL has a high yield of chlorophyll A and total carotenoid.
View Article and Find Full Text PDFCorrelation between Antioxidant Capacity and Phenolic Compounds of Korean Red Pine (Pinus densiflora Sieb. et Zucc.) Bark Fractions under In Vitro Gastrointestinal Digestive Conditions.
Plant Foods Hum Nutr
January 2025
Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104, Republic of Korea.
This study investigated the correlations between phenolic compounds and antioxidant capacities of Korean red pine (Pinus densiflora Sieb. et Zucc.) bark (RPB) fractions after in vitro gastrointestinal digestion.
View Article and Find Full Text PDFAqueous and ethanolic extracts of Moringa oleifera leaves induce selective cytotoxicity in Raji and Jurkat cell lines by activating the P21 pathway independent of P53.
Mol Biol Rep
January 2025
Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Background: The traditional use of Moringa oleifera (MO), an essential food source in Africa and Asia, to cure various diseases dates back thousands of years. This study examines the aqueous and ethanolic leaf extracts of MO's in vitro anti-leukemia capabilities.
Methods: After preparing aqueous and ethanolic MO leaf extracts, cells were treated with various concentrations for 48 h.
Non-linear oral bioavailability and clinical pharmacokinetics of high-dose ethanolic extract: relevant dosage implications for COVID-19 treatment.
Pharm Biol
December 2025
Laboratory of Pharmacology, Chulabhorn Research Institute, Bangkok, Thailand.
Aim: Insufficient quality control and limited dissolution of extract capsules restricts their bioavailability and hinder the clinical use for treating mild coronavirus disease 2019 (COVID-19) patients.
Objective: This study aims to investigate pharmacokinetics and safety of high-dosage ethanolic extract (equivalent to 180 or 360 mg/day of andrographolide), relevant dosages used for mild COVID-19 treatment.
Methods: An open-label, single-dose, and repeated-dose conducted in healthy volunteers.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!