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- Title
Quantificação de compostos fenólicos e ácido ascórbico em frutos e polpas congeladas de acerola, caju, goiaba e morango.
- Authors
Mesquita Freire, Juliana; Patto de Abreu, Celeste Maria; Alvarenga Rocha, Denise; Duarte Corrêa, Angelita; Rodrigues Marques, Natália
- Abstract
The growing public interest in health- promotion, has called the attention of consumers for foods rich in antioxidants, combined with the practicality of the consumption of processed fruit juices. Therefore, this study aimed to quantify and evaluate the antioxidant capacity of phenolic compounds and ascorbic acid in fruits "in natura" and frozen pulps. The fruits "in natura" and frozen pulps from region of Lavras-MG, underwent quantification of phenolic compounds, ascorbic acid and the corresponding extracts acetonic-ethanolic and acetonic-methanolic. Their antioxidant activities were evaluated by DPPH and ABTS radical methods. The extract acetonic-methanolic was more effective to extract the antioxidant compounds from samples. Only frozen acerola pulps showed lower content of phenolic compounds in relation to fruit. For ascorbic acid, there was a reduction in the frozen pulp of acerola and guava. Acerola samples showed higher content of phenolic compounds, ascorbic acid and antioxidant activity compared to other fruits analyzed.
- Subjects
FRUIT; VITAMIN C; ANTIOXIDANTS; PHENOLS; FRUIT juices
- Publication
Ciência Rural, 2013, Vol 43, Issue 12, p2291
- ISSN
0103-8478
- Publication type
Article
- DOI
10.1590/S0103-84782013005000132