Results 81 to 90 of about 190,710 (211)

Multi-experimental characterisation of grape skin extracts

open access: yesCzech Journal of Food Sciences, 2008
Grape skins contain a plenty of different flavonoids, most of them revealing significant antioxidant properties. In this contribution, a complex study is presented of grape skin ethanol extracts, prepared from grape skins of two vine grape varieties ...
Lenka ŠŤAVÍKOVÁ   +3 more
doaj   +1 more source

In Vitro Antioxidant Activity of Methanolic Extract of Piper retrofractum Vahl. [PDF]

open access: yes, 2015
Cabai jamu (Piper retrofractum Vahl.), which is originally from Indonesia and is extensively cultivated and traditionally used in Sumenep, Madura possess high potential medicinal properties.
Abdulgani, Nurlita   +4 more
core  

Soluble and insoluble-bound phenolics and antioxidant activity of various industrial plant wastes [PDF]

open access: yes, 2019
The potential of selected industrial food wastes from juice and nut production including apple peel, apple pomace, pomegranate peel, pomegranate seed, chestnut shell, and black carrot pomace as resources for natural antioxidants was investigated. Soluble
Gulsunoglu, Zehra   +3 more
core   +2 more sources

INTERCALATION OF FREE RADICAL, DPPH, INTO MONTMORILLONITE

open access: yesAnalytical Sciences, 1991
The adosorption of DPPH in the interlayer of sodium montmorillonite and sodium saponite have been investigated by ESR. As the results, DPPH molecules dimerize to form diamagnetic species in montmorillonite, whereas DPPH molecules in saponite exist as isolated stable free radical species at room temperature.
Yuji NAKAMURA, Tokuko WATANABE
openaire   +2 more sources

Antioxidant activity of selected phenols and herbs used in diets for medical conditions

open access: yesCzech Journal of Food Sciences, 2010
The antioxidant capacity of some herbs used in dietology practice was determined by the DPPH free radical method, which was calibrated with ascorbic acid.
Diana Chrpová   +5 more
doaj   +1 more source

Physicochemical parameters and bioactive compounds of strawberry Ttee (Arbutus unedo L.) honey [PDF]

open access: yes, 2015
Botanical origin, physicochemical properties (ash, colour, diastase activity, electrical conductivity (EC), hydroxymethylfurfural (HMF), moisture, optical rotation (OP), pH, reducing sugars, total acidity, total soluble solids, and water activity ...
Brigas, Amadeu   +2 more
core   +2 more sources

Antioxidant capacity and antioxidants of strawberry, blackberry, and raspberry leaves

open access: yesCzech Journal of Food Sciences, 2011
The total phenolic content (Folin-Ciocalteu method), free radical scavenging ability expressed as DPPH value, ferric reducing antioxidant capacity (FRAP), and oxygen radical absorbance capacity (ORAC) were determined in water extracts of leaves from ...
Lucie Buřičová   +7 more
doaj   +1 more source

Effect of Steaming and Boiling on the Antioxidant Properties and Biogenic Amines Content in Green Bean (Phaseolus vulgaris) Varieties of Different Colours [PDF]

open access: yes, 2017
Effects of boiling and steaming cooking methods were studied on total polyphenols, antioxidant capacity, and biogenic amines of three green bean varieties, purple, yellow, and green.The vegetables gave good values both for antioxidant capacity and for ...
Preti, Raffaella   +2 more
core   +3 more sources

Phytochemical and antioxidant screening of some extracts of Juniperus communis L. and Juniperus oxycedrus L.

open access: yesCzech Journal of Food Sciences, 2019
The content of phytochemicals, total phenolics, total flavonoids and antioxidant potential of extracts of Juniperus communis L. and Juniperus oxycedrus L. berries were determined.
Nebojša Živić   +6 more
doaj   +1 more source

Synthesis Optimization of L-Aspartic acid β-hydroxamate by a novel Enzyme, β-Aspartyl-γ-glutamyl transferase [PDF]

open access: yes, 2015
L-Aspartic acid β-hydroxamate or L-β-Aspartyl hydroxamate (BAH), water soluble- chemical compound currently obtains popularity due to its role in several important biochemical processes and to its bioactivities.
Naohara, Ryosuke   +4 more
core  

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