Bioactive compounds and antioxidant activity of fresh exotic fruits from northeastern Brazil

被引:342
作者
Beserra Almeida, Maria Mozarina [1 ,2 ]
Machado de Sousa, Paulo Henrique [3 ]
Campos Arriaga, Angela Martha [2 ]
do Prado, Giovana Matias [3 ]
de Carvalho Magalhaes, Carlos Emanuel [4 ]
Maia, Geraldo Arraes [3 ]
Gomes de Lemos, Telma Leda [2 ]
机构
[1] Univ Fed Ceara, Dept Analyt Chem & Phisicochem, BR-60451970 Fortaleza, Ceara, Brazil
[2] Univ Fed Ceara, Dept Organ & Inorgan Chem, BR-60451970 Fortaleza, Ceara, Brazil
[3] Univ Fed Ceara, Dept Food Technol, BR-60356000 Fortaleza, Ceara, Brazil
[4] Univ Estadual Ceara, Ctr Sci & Technol, BR-60740903 Fortaleza, Ceara, Brazil
关键词
ABTS and DPPH methods; Antioxidant activity; Total phenolics; Vitamin C; Anthocyanins; Tropical fruits; VITAMIN-C; CAPACITY; PHENOLICS; FOOD; CAROTENOIDS; POLYPHENOLS; VEGETABLES; RADICALS; STORAGE; DPPH;
D O I
10.1016/j.foodres.2011.03.051
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Foods rich in antioxidants play an essential role in the prevention of diseases. The present study compared contents of phenolics, vitamin C, anthocyanin and antioxidant activity of 11 fresh exotic fruits, cultivated in the northeastern part of Brazil. The antioxidant activities were evaluated using two antioxidant systems 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), expressed as TEAC (Trolox Equivalent Antioxidant Capacity) and VCEAC (Vitamin C Equivalent Antioxidant Capacity) values. The results indicated that the above fruits, such as murici and mangaba, were good sources of antioxidants. The phenolic contents showed positive correlations with total antioxidant by ABTS (R=0.94, P <= 0.001) and DPPH (R=0.88, P <= 0.001) assays. However, this correlation was not noticed when examining vitamin C and anthocyanins contents. The 11 fruits studied had comparable antioxidant activity in both, ABTS and DPPH assays. These methods are recommended as useful tools for the evaluation of the total activity antioxidant in fruits. Our results indicated promising perspectives for the development and usage of fruits species studied with considerable levels of antioxidant activity. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2155 / 2159
页数:5
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