Results 11 to 20 of about 57,523 (263)
Electrochemistry Communications, 2022 2,2-Diphenyl-1-picrylhydrazyl radical (DPPH•) is a water-insoluble stable radical that has been used to evaluate the activity of antioxidants as a reactivity model of reactive oxygen species.
Ikuo Nakanishi, Yoshimi Shoji
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Antioxidant potential of extracts from different agro wastes: Stabilization of corn oil
Grasas y Aceites, 2008 The antioxidant potential of 80% methanolic extracts of some agro wastes (pomegranate peel, apple peel, banana peel, citrus peel, corncob, wheat husk, wheat bran, rice bran, and rice hull) was assessed. The yields of the extracts varied over a wide range
Bushra Sultana +3 more
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Sensors, 2007 The demonstrated modified spectrophotometric method makes use of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and its specific absorbance properties. Theabsorbance decreases when the radical is reduced by antioxidants.
Ulf-Peter Hansen +5 more
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Incorporation of essential oils into biopolymer films based on pumpkin oil cake in order to improve their antioxidant activity [PDF]
Journal on Processing and Energy in Agriculture, 2019 Active films based on pumpkin oil cake, with 1 % and 2 % of winter savory and basil essential oil, were synthesized in the paper, and the antioxidant activity of the films obtained was subsequently examined.
Bulut Sandra +6 more
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Ciência e Agrotecnologia, 2012 Sapote (Quararibea cordata Vischer), also known as a chupa-chupa, is originated from the Brazilian, Peruvian and Colombian Amazon. The pulp of the ripe fruit is edible, fibrous, of intense orange color, sweet flavor and aromatic. Since the fruit is known
Vania Silva Carvalho +4 more
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Oxo-Carotenoids as Efficient Superoxide Radical Scavengers
Antioxidants, 2022 Oxo-carotenoids containing conjugated carbonyl groups in their chains were designed to be more efficient superoxide radical scavengers than natural carotenoids, β-carotene and canthaxanthin.
Gaosheng Shi, Hyein Kim, Sangho Koo
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DPPH Radical Scavenging Reaction of Hydroxy- and Methoxychalcones
Bioscience, Biotechnology, and Biochemistry, 2006 The DPPH radical scavenging activity of 2',4',6'-trihydroxy- and 2'-hydroxy-4',6'-dimethoxychalcones carrying a 2,3- and 3,4-dihydroxylated, and 3,4,5-trihydroxylated B-ring was evaluated in alcoholic and non-alcoholic solvents. All test compounds scavenged more than two equivalent of radicals by a possible conversion to the corresponding B-ring ...
NISHIDA, Jun, KAWABATA, Jun
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INTERCALATION OF FREE RADICAL, DPPH, INTO MONTMORILLONITE
Analytical 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.
NAKAMURA, Yuji, WATANABE, Tokuko
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Journal of Tropical Pharmacy and Chemistry, 2011 An antioxidant activity test of Bayur Sulawesi (Pterospermum celebicum Miq.) wood ekstract by method of the scavenging free radical DPPH (2,2-diphenyl-1-picryl-hydrazyl) had been performed.
Sapri Sapri
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International Journal of Analytical Chemistry, 2021 This study aimed to investigate the extract with high antioxidant activity of Tetrastigma hemsleyanum Diels et Gilg and identify the antioxidant components in vitro.
Li Ding, Xiaomin Zhang, Jiajia Zhang
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