Results 61 to 70 of about 8,482 (222)

A novel use of purple tulip petal anthocyanins in pH‐sensitive polyvinyl alcohol films for the real‐time monitoring of shrimp freshness

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Shrimp is among the most perishable seafood commodities, and its freshness is still largely assessed through time‐consuming laboratory methods. pH‐responsive colorimetric films have received growing attention as they allow visual, real‐time quality monitoring without specialized equipment.
Tuncay Gümüş, Yasemin Henden, D. Damla Altan Kamer   +2 more
wiley   +1 more source

Evaluating the Antioxidant Capacity of Rheum Ribes via Cupric Reducing Antioxidant Capacity, Ferric Reducing Antioxidant Power and 2,2-Diphenyl-1- picrylhydrazyl Methods

Pharmata
Objective: It was aimed at determining the antioxidant capacity of the above-ground parts of the Rheum ribes species, known as “Iskın,” which grows in the high parts of Erzurum province, using different methods.Methods: Methanol extracts have been ...
Esen Sezen Karaoğlan, Onur Senol, Semih Özli   +2 more
doaj   +1 more source

Development of a new catalase activity assay for biological samples using optical CUPRAC sensor

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2014
A novel catalase activity assay was developed for biological samples (liver and kidney tissue homogenates) using a rapid and low-cost optical sensor-based 'cupric reducing antioxidant capacity' (CUPRAC) method. The reagent, copper(II)-neocuproine (Cu(II)-Nc) complex, was immobilized onto a cation-exchanger film of Nafion, and the absorbance changes ...
Bekdeser, Burcu, Ozyurek, Mustafa, Guclu, Kubilay, Alkan, Fulya Ustun, Apak, Resat   +4 more
openaire   +3 more sources

Uji Aktivitas Antioksidan Ekstrak Etanol 96% Daun Karamunting (Melastoma malabathricum L.) dengan Metode CUPRAC

Borneo Journal of Pharmascientech, 2023
Radikal bebas merupakan senyawa yang mampu merusak struktur seluler di dalam tubuh, termasuk DNA, lipid, dan protein. Antioksidan merupakan senyawa yang dapat menghambat terjadinya proses oksidasi. Daun karamunting (Melastoma malabathricum L.) tumbuhan yang dapat dijadikan sebagai sumber antioksidan alami.
Nabila Saputri, Rahmi Muthia, Muhammad Hidayatullah   +2 more
openaire   +1 more source

Valorization of fruit pits from Prunus laurocerasus and Prunus cerasifera as agro‐food byproducts: Bioactive properties and safety assessment for potential food additive applications

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Food additives are widely used to extend the shelf life of foods and maintain their quality. In this study, the potential of Prunus laurocerasus and Prunus cerasifera fruit pits (endocarp and seed) as food additives was investigated in terms of cytotoxicity, antigenotoxicity, antioxidant activity, enzymatic anti‐browning, and urease
Zühal Bayrakçeken Güven, Mehmet Karadayı, Mustafa Abdullah Yilmaz, Osman Tugay, Oguz Cakir   +4 more
wiley   +1 more source

Antioxidant Capacity of a Turkish Traditional Alcoholic Drink, Raki

Polish Journal of Food and Nutrition Sciences, 2016
Raki is an aniseed flavoured traditional Turkish alcoholic drink. Antioxidant capacity of raki samples from different commercial brands were evaluated by CUPRAC, DPPH, TEAC and ORAC assays and correlations between these assays and total phenolic content ...
Yalcin Gorkem
doaj   +1 more source

Neem oil nanoemulsions: characterisation and antioxidant activity [PDF]

, 2017
The aim of the present work is to develop nanoemulsions (NEs), nanosized emulsions, manufactured for improving the delivery of active pharmaceutical ingredients. In particular, nanoemulsions composed of Neem seed oil, contain rich bioactive components,
Carafa, Maria, Carradori, Simone, Del Favero, Elena, Grazia Ammendolia, Maria, Hanieh, PATRIZIA NADIA, Longhi, Catia, Marianecci, Carlotta, Mattia, Elena, Rinaldi, Federica, Secci, Daniela, Zengin, Gokhan   +10 more
core   +1 more source

Response of Melissa officinalis subsp. officinalis seedlings to Fe3O4‐NPs under in vitro conditions: physiological, biochemical and molecular analyses

Plant Biology, EarlyView.
Iron oxide nanoparticles influence the growth, antioxidant capacity, and gene activity of Melissa officinalis subsp. officinalis plants in vitro, revealing their potential as modulators of secondary metabolism. Abstract Application of iron oxide nanoparticles (NP) (Fe3O4‐NPs) in plant biotechnology presents new opportunities for enhancing metabolic ...
E. Bektaş, H. Şahin, H. İ. Güler, K. İ. Bektaş, K. Kaltalioğlu, N. E. Uzun   +5 more
wiley   +1 more source

Antioxidant Activities from Two Varieties of Pear Peel Extracts using DPPH and CUPRAC Methods

Journal of Physics: Conference Series, 2021
Abstract Pear peels more often than not are considered nonbeneficial, therefore they generally end up discarded aside from being consumed along with the fruit. In this research, the antioxidant capacity of the peel of two most popular pears consumed in Indonesia, namely European Pear (EP) and Asian Pear (AP) is being identified and ...
V M Patricia, F N Syaputri
openaire   +1 more source

Bibliometric Analysis of Cubebenes and Related Sesquiterpenes: Natural Occurrence, Biosynthesis, Pharmacological Activities, and In‐Silico‐Based Future Therapeutic Potential

eFood, Volume 7, Issue 3, June 2026.
Cubebene‐related sesquiterpenes, found across diverse biological sources, exhibit promising pharmacological activities, including anti‐inflammatory, neuroprotective, and anticancer effects. This review highlights their molecular diversity, ADME profiles, and predicted multitarget interactions, underscoring their therapeutic relevance and potential in ...
Khadija Boualam, Ahmet B. Ortaakarsu, Sohaib Khatib, Mohamed A. Farag, Mansour Sobeh   +4 more
wiley   +1 more source