Ascorbic acid and phenolic contents, antioxidant capacity and flavonoids composition of Brazilian Savannah native fruits
Food Sci. Technol (SBCTA, Impr.)
;
37(4): 564-569, Dec. 2017. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-892203
ABSTRACT
Abstract Brazilian Savannah native fruits have been investigated as potential sources of antioxidant substances. Cagaita, cerrado cashew and gabiroba were characterized with regard to the ascorbic acid and phenolic contents, antioxidant capacity and flavonoids composition. Gabiroba presented higher contents of ascorbic acid (61.5 mg.100 g-1), total phenolic compounds (1,222.59 mg GAE.100 g-1), and antioxidant capacity (DPPH, FRAP and ORAC assays) than cagaita and cerrado cashew. The correlation coefficients between total ascorbic acid or total phenolic contents and antioxidant capacity were strong and significant (0.970 ≤ r ≤ 0.998). Quercetin derivatives were found in cagaita (1.94 mg.100 g-1) and myricetin derivatives in cerrado cashew (1.2 mg.100 g-1). Peonidin 3-glucoside was the main anthocyanin in cerrado cashew, and its flavonoids composition was first identified in this study. Gabiroba showed relevant catechin content (23.32 mg.100 g-1). These Brazilian native fruits may be considered as important sources of bioactive compounds, notably gabiroba, since it presents high phenolic contents and antioxidant capacity.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Food Sci. Technol (SBCTA, Impr.)
Assunto da revista:
ALIMENTOS
/
Ciências da Nutrição
Ano de publicação:
2017
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Federal de Goiás/BR
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