Radical scavenging activity of orange and tangerine varieties cultivated in Brazil.
Identifieur interne : 000991 ( PubMed/Corpus ); précédent : 000990; suivant : 000992Radical scavenging activity of orange and tangerine varieties cultivated in Brazil.
Auteurs : Alexandra G. Duzzioni ; Andréa G. Franco ; Célia M. De SylosSource :
- International journal of food sciences and nutrition [ 1465-3478 ] ; 2009.
English descriptors
- KwdEn :
- Acetone (chemistry), Antioxidants (analysis), Antioxidants (chemistry), Ascorbic Acid (analysis), Ascorbic Acid (chemistry), Brazil, Carotenoids (analysis), Carotenoids (chemistry), Citric Acid (analysis), Citric Acid (chemistry), Citrus (chemistry), Citrus (growth & development), Citrus sinensis (chemistry), Citrus sinensis (growth & development), Free Radical Scavengers (analysis), Free Radical Scavengers (chemistry), Fruit (chemistry), Fruit (growth & development), Methanol (chemistry), Osmolar Concentration, Phenols (analysis), Phenols (chemistry), Physicochemical Phenomena, Plant Extracts (chemistry), Solubility, Solvents (chemistry), Species Specificity, Water (chemistry).
- MESH :
- chemical , analysis : Antioxidants, Ascorbic Acid, Carotenoids, Citric Acid, Free Radical Scavengers, Phenols.
- chemical , chemistry : Acetone, Antioxidants, Ascorbic Acid, Carotenoids, Citric Acid, Free Radical Scavengers, Methanol, Phenols, Plant Extracts, Solvents, Water.
- geographic : Brazil.
- chemistry : Citrus, Citrus sinensis, Fruit.
- growth & development : Citrus, Citrus sinensis, Fruit.
- Osmolar Concentration, Physicochemical Phenomena, Solubility, Species Specificity.
Abstract
Four citrus fruit varieties cultivated in Brazil (two kinds of sweet orange and two kinds of tangerine) were analyzed for physicochemical characteristics contents of total phenolics, total carotenoids and ascorbic acid, and antioxidant activities. The antioxidant activities of aqueous, methanolic, and acetone extracts of the citrus fruit juices were assessed on the basis of their ability to scavenge 1,1-diphenyl-2-picrylhydrazyl (DPPH•). The cravo tangerine has the highest content of citric acid, while the pera orange is richest in ascorbic acid. The lima orange has the highest total phenolic contents, and the ponkan the highest total carotenoids. The antioxidant activities, expressed as the concentration of antioxidant able to scavenge 50% of the initial DPPH• (EC₅₀), ranged from 139.1 ± 27.3 to 182.2 ± 28.8 g extract/l for juice of orange varieties and 186.3 ± 29.6 to 275.5 ± 3.3g extract/l for juice of tangerine citrus varieties. In methanolic extracts the EC₅₀ ranged from 192.5 ± 43.1 to 267.4 ± 41.4 g extract/l for orange varieties and from 225.2 ± 69.8 to 336.3 ± 27.2 g extract/l for tangerine varieties. For EC₅₀ values of acetone fractions, there were no statistically significant differences between the different varieties. For every citrus fruit in the present study, the radical scavenging capacity was higher in the aqueous than in the methanolic or acetone fractions.
DOI: 10.1080/09637480902769575
PubMed: 19381992
Links to Exploration step
pubmed:19381992Le document en format XML
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<author><name sortKey="Duzzioni, Alexandra G" sort="Duzzioni, Alexandra G" uniqKey="Duzzioni A" first="Alexandra G" last="Duzzioni">Alexandra G. Duzzioni</name>
<affiliation><nlm:affiliation>Departamento de Alimentos e Nutrição, Faculdade de Ciências Farmacêuticas de Araraquara, UNESP, Araraquara, SP, Brazil. duzzioni@fcfar.unesp.br</nlm:affiliation>
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<author><name sortKey="Franco, Andrea G" sort="Franco, Andrea G" uniqKey="Franco A" first="Andréa G" last="Franco">Andréa G. Franco</name>
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<author><name sortKey="De Sylos, Celia M" sort="De Sylos, Celia M" uniqKey="De Sylos C" first="Célia M" last="De Sylos">Célia M. De Sylos</name>
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<affiliation><nlm:affiliation>Departamento de Alimentos e Nutrição, Faculdade de Ciências Farmacêuticas de Araraquara, UNESP, Araraquara, SP, Brazil. duzzioni@fcfar.unesp.br</nlm:affiliation>
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<term>Ascorbic Acid (chemistry)</term>
<term>Brazil</term>
<term>Carotenoids (analysis)</term>
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<front><div type="abstract" xml:lang="en">Four citrus fruit varieties cultivated in Brazil (two kinds of sweet orange and two kinds of tangerine) were analyzed for physicochemical characteristics contents of total phenolics, total carotenoids and ascorbic acid, and antioxidant activities. The antioxidant activities of aqueous, methanolic, and acetone extracts of the citrus fruit juices were assessed on the basis of their ability to scavenge 1,1-diphenyl-2-picrylhydrazyl (DPPH•). The cravo tangerine has the highest content of citric acid, while the pera orange is richest in ascorbic acid. The lima orange has the highest total phenolic contents, and the ponkan the highest total carotenoids. The antioxidant activities, expressed as the concentration of antioxidant able to scavenge 50% of the initial DPPH• (EC₅₀), ranged from 139.1 ± 27.3 to 182.2 ± 28.8 g extract/l for juice of orange varieties and 186.3 ± 29.6 to 275.5 ± 3.3g extract/l for juice of tangerine citrus varieties. In methanolic extracts the EC₅₀ ranged from 192.5 ± 43.1 to 267.4 ± 41.4 g extract/l for orange varieties and from 225.2 ± 69.8 to 336.3 ± 27.2 g extract/l for tangerine varieties. For EC₅₀ values of acetone fractions, there were no statistically significant differences between the different varieties. For every citrus fruit in the present study, the radical scavenging capacity was higher in the aqueous than in the methanolic or acetone fractions.</div>
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<Abstract><AbstractText>Four citrus fruit varieties cultivated in Brazil (two kinds of sweet orange and two kinds of tangerine) were analyzed for physicochemical characteristics contents of total phenolics, total carotenoids and ascorbic acid, and antioxidant activities. The antioxidant activities of aqueous, methanolic, and acetone extracts of the citrus fruit juices were assessed on the basis of their ability to scavenge 1,1-diphenyl-2-picrylhydrazyl (DPPH•). The cravo tangerine has the highest content of citric acid, while the pera orange is richest in ascorbic acid. The lima orange has the highest total phenolic contents, and the ponkan the highest total carotenoids. The antioxidant activities, expressed as the concentration of antioxidant able to scavenge 50% of the initial DPPH• (EC₅₀), ranged from 139.1 ± 27.3 to 182.2 ± 28.8 g extract/l for juice of orange varieties and 186.3 ± 29.6 to 275.5 ± 3.3g extract/l for juice of tangerine citrus varieties. In methanolic extracts the EC₅₀ ranged from 192.5 ± 43.1 to 267.4 ± 41.4 g extract/l for orange varieties and from 225.2 ± 69.8 to 336.3 ± 27.2 g extract/l for tangerine varieties. For EC₅₀ values of acetone fractions, there were no statistically significant differences between the different varieties. For every citrus fruit in the present study, the radical scavenging capacity was higher in the aqueous than in the methanolic or acetone fractions.</AbstractText>
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