Results 71 to 80 of about 3,103 (173)

Electrochemical Method to Quantify Antioxidants Employing Cupric Reducing Antioxidant Capacity, CUPRAC

Procedia Chemistry, 2014
AbstractCUPRAC is a method used to determine antioxidants quantifying the chromophore [Cu(Nc)2]+, generated upon increases of added antioxidants to a Cu(II) containing solution. In this work, an electrochemical alternative to quantify this complex is presented using cyclic voltammetry and chronoamperometry, compared with the classical spectroscopic ...
Cárdenas, Arely, Gomez, Martín, Frontana, Carlos   +2 more
openaire   +1 more source

Antioxidant Potential Evaluation at Various Stages of Black Cumin Oil Production

Foods
Nigella sativa L. seeds and their industrial process products, oils, cake, and meal, are valuable sources of bioactive compounds with antioxidant properties.
Dobrochna Rabiej-Kozioł, Aleksandra Szydłowska-Czerniak   +1 more
doaj   +1 more source

Antioxidant potential and xanthine oxidase inhibition of flavonol glycosides from Phyllanthus emblica L. leaves [PDF]

Journal of Pharmacy & Pharmacognosy Research
Context: Hyperuricemia is the cause of gout in the inflammatory joint condition. The xanthine oxidase enzyme is a therapeutic target for gout treatment because it plays a role in the generation of uric acid. Allopurinol is used to treat gout. It prevents
Husnunnisa, Rika Hartati, Rachmat Mauludin, Muhamad Insanu   +3 more
doaj   +1 more source

Determination of Total Phenolic Contents and Antioxidant Activities of Different Extracts Obtained from Morus alba L. (White Mulberry) Leaf

Pharmata
Objective: The plant known as white mulberry, or Morus alba L., has several uses and is employed in traditional medicine in many different cultures. The objectives of this study are to determine the total phenolic component and antioxidant levels of the ...
Nurcan Kılıç Baygutalp, Sedanur Kasimoğullari, Lale Duysak   +2 more
doaj  

Antioxidant Activity of Hydroalcoholic Extract of Puguntano Herbs and Andaliman Fruits by Cuprac Methods

Majalah Obat Tradisional
Free radical damage to the body can be prevented and repaired using antioxidants. Various natural ingredients native to Indonesia contain antioxidants, which are needed to improve people's health at an affordable cost. Puguntano (Picria fel-terrae) and Andaliman (Zanthoxylum acanthopodium DC.) are natural ingredients that can be used as antioxidants ...
Satria, Denny, Dalimunthe, Aminah, Sitorus, Panal, Waruwu, Syukur Berkat, Vadhila, Mumtaz, Wahyu, Muhammad   +5 more
openaire   +2 more sources

An efficient protocol for quantifying catalase activity in biological samples

Bulletin of the National Research Centre
Background Catalase is an important enzyme that helps protect cells against oxidative stress. The current protocol presents a reliable method for measuring catalase (CAT) enzyme activity in biological systems using the CUPRAC-CAT method.
Mahmoud Hussein Hadwan, Abdulsamie Hassan Alta’ee, Rawa M. Mohammed, Asad M. Hadwan, Hawraa Saad Al-Kawaz, Zainab Abbas Al Talebi   +5 more
doaj   +1 more source

The effects of experimental conditions on extraction of polyphenols from African Nutmeg peels using NADESs-UAE: a multifactorial modelling technique

Scientific Reports
Extraction of polyphenolic compounds from African nutmeg (Monodora myristica (Gaertn.)) peels using natural acidic deep eutectic solvents coupled to ultrasound-assisted extraction (NADESs-UAE) followed many factors at a time (MFAT) screening with ...
Udodinma Jude Okeke, Matteo Micucci, Dasha Mihaylova, Achile Cappiello   +3 more
doaj   +1 more source

ROASTED PROCESS IN ARABICA AND ROBUSTA COFFEE FROM WEST SUMATRA, INDONESIA: EFFECT ON SINGLE TRANSFER ELECTRON AND FREE RADICAL SCAVENGING ACTIVITY

Bulletin of Pharmaceutical Sciences. Assiut University
Coffee, a commonly consumed drink worldwide, is known for its abundance of bioactive substances, particularly antioxidants like chlorogenic acids, caffeine, flavonoids, and melanoidins.
Silvia Yati, Rika Hartati, Irda Fidrianny   +2 more
doaj   +1 more source

Characterization of Key Phytoconstituents in Nigella Oil from Diverse Sources and Their Transfer Efficiency During Oil Processing

Crops
Nigella sativa L., which is commonly referred to as black cumin, is a globally recognized plant for the nutraceutical and pharmaceutical values of its seed oil.
Parbat Raj Thani, Joel B. Johnson, Surya Bhattarai, Tieneke Trotter, Kerry Walsh, Daniel Broszczak, Mani Naiker   +6 more
doaj   +1 more source

Antioxidant Activity of Edible Bird’s Nest (Aerodramus fuciphagus) from Central Borneo, Indonesia

Borneo Journal of Pharmacy
Edible bird's nests (EBNs) from Aerodramus fuciphagus have been traditionally used in Asia for their various health benefits, including antioxidant properties.
Dita Ayulia Dwi Sandi, Eka Fitri Susiani, Satrio Wibowo Rahmatullah, I Ketut Adnyana, Pratiwi Wikaningtyas   +4 more
doaj   +1 more source