Results 21 to 30 of about 85,574 (269)

Deoxyfluorination of Phenols [PDF]

Journal of the American Chemical Society, 2011
An operationally simple ipso fluorination of phenols with a new deoxyfluorination reagent is presented.
Tang, Pingping, Wang, Weike, Ritter, Tobias   +2 more
openaire   +4 more sources

Mitochondrial dysfunction-targeting therapeutics of natural products in Parkinson’s disease

Frontiers in Pharmacology, 2023
Parkinson’s disease (PD), the second most common neurodegenerative disease worldwide, often occurs in middle-aged and elderly individuals. The pathogenesis of PD is complex and includes mitochondrial dysfunction, and oxidative stress.
Ting He, Xiaoyan Lin, Anping Su, Yujie Zhang, Zhichao Xing, Li Mi, Tao Wei, Zhihui Li, Wenshuang Wu   +8 more
doaj   +1 more source

Botanical Origin of Galician Bee Pollen (Northwest Spain) for the Characterization of Phenolic Content and Antioxidant Activity

Foods, 2023
Bee pollen is considered a natural product, relevant for its nutritional and antioxidant properties. Its composition varies widely depending on its botanical and geographical origins.
Sergio Rojo, Olga Escuredo, María Shantal Rodríguez-Flores, María Carmen Seijo   +3 more
doaj   +1 more source

Proton Nuclear Magnetic Resonance (¹H NMR) Metabolic Profiles Discriminate Two Monovarietal Extra Virgin Olive Oils, Cultivars Arbequina and Koroneiki, with Different Geographical Origin

Horticulturae, 2023
This study aims to evaluate the Proton Nuclear Magnetic Resonance (1H-NMR)-based metabolomic profiles of monovarietal olive oils obtained from Arbequina and Koroneiki, which are typically present in the Mediterranean basin and grown in Spain and Greece ...
Federica Angilè, Laura Del Coco, Chiara Roberta Girelli, Francesca Calò, Lucia Mazzi, Francesco Paolo Fanizzi, Gaetano Alessandro Vivaldi, Salvatore Camposeo   +7 more
doaj   +1 more source

Postharvest Treatment with Abscisic Acid Alleviates Chilling Injury in Zucchini Fruit by Regulating Phenolic Metabolism and Non-Enzymatic Antioxidant System

Antioxidants, 2023
Reports show that phytohormone abscisic acid (ABA) is involved in reducing zucchini postharvest chilling injury. During the storage of harvested fruit at low temperatures, chilling injury symptoms were associated with cell damage through the production ...
Alejandro Castro-Cegrí, Sandra Sierra, Laura Hidalgo-Santiago, Adelaida Esteban-Muñoz, Manuel Jamilena, Dolores Garrido, Francisco Palma   +6 more
doaj   +1 more source

ESTIMATION OF MODERN CONDITION OF POLLUTION DEGREE OF WATER AND BOTTOM SEDIMENT OF THE SOUTHERN PART OF THE AGRAKHAN BAY

Юг России: экология, развитие, 2014
The article presents the data obtained in the course of field research in the southern part of theAgrakhan Bay. As a result of research, conducted full hydrochemical analysis of water samples taken at nine stations.
A. A. Gadzhiev
doaj   +1 more source

Exogenous Sugar Effects on Fruit Quality in 'Petit Verdot' Grape Berry in Vitro

Shipin gongye ke-ji, 2023
The test material in this experiment was the wine grape variety 'Petit Verdot' (Vitis vinifera L.cv. Petit Verdot). Sucrose, glucose, fructose, and rhamnose were selected for sugars, with mass fractions of 2%, 5% and 8%, respectively.
Hanmei SU, Haining YIN, Kenan ZHANG, Yedan ZHANG, Chan LI, Ying LI, Zhumei XI   +6 more
doaj   +1 more source

Comparative characteristics of sterically hindered phenols and nitroxide radicals as stabilizers of polyethylene photodegradation

Advanced Engineering Research, 2019
Introduction. Polymeric materials (PM) are increasingly used in various industries and agriculture. Under the action of UV light, PM are destroyed. UV stabilizers are used to protect PM from photodegradation.
I. Yu. Zhukova, I. I. Kashparov, S. V. Kucherenko, E. Sh. Kagan   +3 more
doaj   +1 more source

Antimicrobial, Anticancer, and Antioxidant Activities of Maize and Clover Pollen Grains Extracts: A Comparative Study with Phytochemical Characterizations

Pharmaceuticals, 2023
The failure to treat infectious diseases due to the continual emergence of drug-resistant microbes poses a huge and serious challenge for human health globally.
Heba Barnawi, Husam Qanash, Abdu Aldarhami, Ghaida Alsaif, Bandar Alharbi, Majed N. Almashjary, Alhomidi Almotiri, Abdulrahman S. Bazaid   +7 more
doaj   +1 more source

Mediterranean Shrub Species as a Source of Biomolecules against Neurodegenerative Diseases

Molecules, 2023
Neurodegenerative diseases are associated with oxidative stress, due to an imbalance in the oxidation-reduction reactions at the cellular level. Various treatments are available to treat these diseases, although they often do not cure them and have many ...
Natividad Chaves, Laura Nogales, Ismael Montero-Fernández, José Blanco-Salas, Juan Carlos Alías   +4 more
doaj   +1 more source