Results 181 to 190 of about 3,038 (194)

Novel hydroxyl radical scavenging antioxidant activity assay for water-soluble antioxidants using a modified CUPRAC method

Biochemical and Biophysical Research Communications, 2006
Reactive oxygen species (ROS) such as superoxide anion, hydroxyl ((*)OH), peroxyl, and alkoxyl radicals may attack biological macromolecules giving rise to oxidative stress-originated diseases. Since (*)OH is very short-lived, secondary products resulting from (*)OH attack to various probes are measured.
Burcu, Bektaşoğlu, Saliha, Esin Celik, Mustafa, Ozyürek, Kubilay, Güçlü, Reşat, Apak   +4 more
openaire   +2 more sources

Combined HPLC-CUPRAC (cupric ion reducing antioxidant capacity) assay of parsley, celery leaves, and nettle

Talanta, 2008
This study aims to identify the essential antioxidant compounds present in parsley (Petroselinum sativum) and celery (Apium graveolens) leaves belonging to the Umbelliferae (Apiaceae) family, and in stinging nettle (Urtica dioica) belonging to Urticaceae family, to measure the total antioxidant capacity (TAC) of these compounds with CUPRAC (cupric ion ...
Leyla, Yildiz, Kevser Sözgen, Başkan, Esma, Tütem, Reşat, Apak   +3 more
openaire   +2 more sources

Novel Optical Fiber Reflectometric CUPRAC Sensor for Total Antioxidant Capacity Measurement of Food Extracts and Biological Samples

Journal of Agricultural and Food Chemistry, 2013
A novel fiber optic sensor was developed for screening the total antioxidant capacity (TAC) based on the use of cupric-neocuproine (Cu(II)-Nc) immobilized onto a Nafion cation-exchange membrane with reflectance spectrometric measurement. The reflectance change associated with the formation of the highly colored Cu(I)-Nc chelate on the membrane as a ...
Mustafa, Bener, Mustafa, Özyürek, Kubilay, Güçlü, Reşat, Apak   +3 more
openaire   +2 more sources

Određivanje antioksidacijskog karaktera odabranih boroničnih kiselina CUPRAC metodom

2017
Oksidativni stres je štetan proces koji može biti važan posrednik oštećenja staničnih struktura i može uzrokovati razna stanja bolesti i starenja. Antioksidacijska mjerenja se provode za dijagnozu i liječenje bolesti povezanih s antioksidativnim stresom, za usporedbu hrane s obzirom na sadržaj antioksidansa i za kontrolu varijacija između proizvoda ...
openaire   +1 more source

The CUPRAC Methods of Antioxidant Measurement for Beverages

2014
Reşat Apak, Mustafa Özyürek, Kubilay Güçlü, Burcu Bekdeşer, Mustafa Bener   +4 more
openaire   +1 more source

Determination of Antioxidant Activity of Daidzein by Using FRAP and CUPRAC Methods

2019
ÇETİN, Meltem, UĞUR KAPLAN, Afife Büşra, GÜLABOĞLU, Mine, DUYSAK, Lale   +3 more
openaire   +3 more sources

Rhenum Ribes (Işkın) Bitkisinin Metanol Ekstresinin CUPRAC Yöntemiyle Analizi

2017
KADIOĞLU, YÜCEL, Çömez, Arzu, AKMAN, TUĞRUL ÇAĞRI, ŞENOL, ONUR   +3 more
openaire   +1 more source

Determination of Antioxidant Capacity of Nigella Sativa Via CUPRAC, FRAP, DPPH and ABTS/TEAC Methods

2014
BAYIR, Yasin, GÜLABOĞLU, Mine, KUTLU, Zerrin   +2 more
openaire   +3 more sources

Determination of antioxidant caapcity PPO enzyme morchella esculata by FRAP and CUPRAC methods.

2017
GÜLABOĞLU, Mine, KUTLU, Zerrin, GÜR, BAHRİ, GUR OZABACIGIL, FATMA, KAYA, ELİF DUYGU   +4 more
openaire   +1 more source

CUPRAC assay-guided profiling of antioxidant compounds in methanol extract of Lentinus squarrosulus Mont. mycelium: CUPRAC test za ločitev antioksidacijskih spojin v metanolnem izvlčeku micelija glive Lentinus squarrosulus Mont.:

2018
Abdullah, Noorlidah, Abdullah, Sumaiyah, Sabaratnam, Vikineswary, Yap, Ken Choy   +3 more
openaire   +1 more source