Results 41 to 50 of about 279,038 (348)

A Novel Stoichio-Kinetic Model for the DPPH• Assay: The Importance of the Side Reaction and Application to Complex Mixtures

open access: yesAntioxidants, 2021
The 2,2-diphenyl-1-picrylhydrazyl (DPPH•) assay is widely used to determine the antioxidant activity of food products and extracts. However, the common DPPH• protocol uses a two-point measurement and does not give information about the kinetics of the ...
Lucrezia Angeli   +4 more
semanticscholar   +1 more source

OXIDATIVE CHANGES OF LIPIDS, PROTEINS AND ANTIOXIDANTS IN YOGURT DURING THE SHELF LIFE [PDF]

open access: yes, 2017
Background: Oxidation processes in milk and yogurt during the shelf life can result in an alteration of protein and lipid constituents. Therefore, the antioxidant properties of yogurt in standard conditions of preservation were evaluated. Results: Total
Bellamio, Marco   +7 more
core   +1 more source

Isoflavones and Bioactivities in Over-fermented Tempeh Extracts

open access: yesJurnal Kimia Sains dan Aplikasi, 2021
Tempeh is nutritious food prepared through solid-state fermentation of cooked and dehulled soybeans with Rhizopus sp. for about 48 h. Fermentation beyond 48 h resulted in over-fermented tempeh. There may or may not have been similar research done before,
Anastasia Fitria Devi   +4 more
doaj   +1 more source

Study of Antioxidant Activity and Phytochemical analysis of Endophytic Fungi Extracts from Hazel (Corylus avellana L.) plant [PDF]

open access: yesBiological Journal of Microorganism, 2021
Diverse endophytic fungi exist within plant tissues that are valuable resources for plant growth promotion. These endophytes constitute a rich bio-resource to discover new natural products. Also, endophytic fungi have been recognized as useful sources of
Arezoo Kashanian   +2 more
doaj   +1 more source

Analysis of phytochemicals, minerals and in vitro antioxidant activities of Gongronema latifolium leaves [PDF]

open access: yes, 2017
Gongronema latifolium is primarily used as spice and vegetable as well as a herb in traditional medicine in the treatment of malaria, diabetes and hypertension.
Chinwe, Igwe V., Usunomena, Usunobun
core   +1 more source

The Potential of Liquid Tofu Waste in Increasing Antioxidant Activity of Robusta Green Coffee

open access: yesBiosaintifika: Journal of Biology & Biology Education, 2018
Robusta is the most widely cultivated coffee in Indonesia (90% of the total Indonesian coffee production). Antioxidant activity and polyphenol content of Robusta coffee is higher than Arabica coffee or the other plants.
Ayu Rahmawati Sulistyaningtyas   +1 more
doaj   +1 more source

AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL, ETIL ASETAT, DAN n-HEKSANA BATANG TURI PUTIH (Sesbania grandiflora (L.) Pers.) DENGAN METODE DPPH (1,1-Diphenyl-2-picrylhydrazyl)

open access: yesJurnal Kimia Riset, 2020
Turi (Sesbania grandiflora (L.) Pers.) merupakan jenis tanaman yang tersebar luas di wilayah Indonesia dan termasuk dalam famili Fabaceae serta memiliki potensi sebagai antioksidan alami.
Jamilatur Rohmah   +6 more
doaj   +1 more source

A study of the antioxidant capacity of oak wood used in wine ageing and the correlation with polyphenol composition [PDF]

open access: yes, 2011
The antioxidant capacity of oak wood used in the ageing of wine was studied by four different methods: measurement of scavenging capacity against a given radical (ABTS, DPPH), oxygen radical absorbance capacity (ORAC) and the ferric reducing antioxidant ...
Alañón, M.E.   +4 more
core   +1 more source

In vitro anti-oxidation activity studies of the whole plant (except flower) of Thunbergia coccinea

open access: yesJournal of Applied Pharmaceutical Research, 2020
An in vitro study of the methanolic extract of the whole plant (except flower) of Thunbergia coccinea was performed to check the anti-oxidant activity by different methods (Reducing power assay, TBA and DPPH scavenging assay) and before starting the ...
Damanbhalang Rynjah, Sumit Das
doaj   +1 more source

Demonstration of a 1/4 cycle phase shift in the radiation-induced oscillatory-magnetoresistance in GaAs/AlGaAs devices [PDF]

open access: yes, 2004
We examine the phase and the period of the radiation-induced oscillatory-magnetoresistance in GaAs/AlGaAs devices utilizing in-situ magnetic field calibration by Electron Spin Resonance of DiPhenyl-Picryl-Hydrazal. The results confirm a $f$-independent 1/
J. H. Smet   +12 more
core   +3 more sources

Home - About - Disclaimer - Privacy