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Atividade antioxidante
de
frutas do cerrado
Roesler, R ; Malta, L.G ; Carrasco, L.C ; Holanda, R.B ; Sousa, C.A.S ; Pastore, G.M
Ciência e tecnologia
de
alimentos, 2007, Vol.27 (1), p.53-60
[Peer Reviewed Journal]
Sociedade Brasileira
de
Ciência e Tecnologia
de
Alimentos
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Title:
Atividade antioxidante
de
frutas do cerrado
Author:
Roesler, R
;
Malta, L.G
;
Carrasco, L.C
;
Holanda, R.B
;
Sousa, C.A.S
;
Pastore, G.M
Subjects:
antioxidant activity
;
ANTIOXIDANTE
;
atividade antioxidante
;
CERRADO
;
DPPH
;
EXTRATO
;
fenóis
;
FOOD SCIENCE & TECHNOLOGY
;
FRUTA TROPICAL
;
frutas tropicais
;
phenols
;
PROPRIEDADE FÍSICO-QUÍMICA
;
tropical fruits
Is Part Of:
Ciência e tecnologia
de
alimentos, 2007, Vol.27 (1), p.53-60
Notes:
Q04
100
10.1590/S0101-20612007000100010
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612007000100010
Description:
Annona crassiflora (araticum), Solanum lycocarpum (lobeira), Eugenia dysenterica (cagaita), Caryocar brasilense (pequi) e Swartzia langsdorfii (banha
de
galinha) são frutas do bioma cerrado, conhecidas e consumidas principalmente por populações nativas dessa região. Nesse estudo, as diferentes frações dos frutos acima descritos (polpa, semente e casca) foram avaliadas por meio
de
extratos aquosos e etanólicos. Alguns extratos mostraram altíssimos conteúdos
de
compostos fenólicos e foram escolhidos para avaliação do potencial em seqüestrar radicais livres por meio do modelo 2,2 difenil-1-picril hidrazil (DPPH). Os melhores resultados foram: extrato aquoso e etanólico
de
casca
de
pequi (IC50 igual a 9,44 e 17,98 µg.mL-1 respectivamente), extrato etanólico
de
sementes
de
cagaita (IC50 igual a 14,15 µg.mL-1), extrato etanólico
de
sementes e casca
de
araticum (IC50 igual a 30,97 e 49,18 µg.mL-1, respectivamente). Este é o primeiro estudo que avalia o potencial em seqüestrar radicais livres
de
frações de frutas do cerrado. Os resultados indicam que os extratos possuem grande potencial antioxidante e estudos adicionais são necessários para avaliar essa propriedade dos extratos como uma aplicação sustentável dos recursos do cerrado nos setores farmacêuticos, cosméticos e nutricionais. Annona crassiflora (araticum), Solanum lycocarpum (lobeira), Eugenia dysenterica (cagaita), Caryocar brasilense (pequi) and Swartzia langsdorfii (banha de galinha) are tropical fruits consumed mainly by native people in the Brazilian Cerrado (second biggest biome of Brazil). In this study, pulp, seed and peel of the fruits were extracted using ethanol and water. Some of the extracts showed a high content of total phenols and were screened for their potential as antioxidants using the in vitro model 2,2-diphenyl-1-picryl hydrazyl (DPPH). The best results were found for aqueous and ethanolic extracts of pequi peel (IC50 of 9,44 and 17,98 µg.mL-1 respectively), etanolic extract of cagaita seeds (IC50 of 14,15 µg.mL-1), etanolic extract of araticum seeds and peel (IC50 of 30,97 and 49,18 µg.mL-1 respectively). This is the first report on the antioxidant properties of the extracts of cerrado fruit fractions. Owing to these properties, studies can be further extended to use them for possible applications as natural antioxidant for cosmetics, supplements and functional ingredients for food products as well as being able to represent a sustainable application of the natural sources in the Brazilian bioma cerrado.
Publisher:
Sociedade Brasileira
de
Ciência e Tecnologia
de
Alimentos
Language:
Portuguese
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