Antioxidant Activity of Co-Products from Guava, Mango and Barbados Cherry Produced in the Brazilian Northeast

Autor: Alline Souza, Kassandra L. G. V. Araújo, Marciane Magnani, Neide Queiroz, Antonio G. Souza, Jaqueline A. Nascimento, Poliana S. Epaminondas, A. L. Souza
Rok vydání: 2014
Předmět:
Zdroj: Molecules, Vol 19, Iss 3, Pp 3110-3119 (2014)
Molecules
Volume 19
Issue 3
Pages 3110-3119
ISSN: 1420-3049
DOI: 10.3390/molecules19033110
Popis: Co-products from the juice processing of guava (CG), mango (CM) and barbados cherry (CB) were investigated with a view to their exploitation as a potential source of natural antioxidants. The ethanolic extracts were analyzed for total extractable phenolic content (TEP), DPPH radical scavenging activity (RSA-DPPH), ferric reducing antioxidant power (FRAP) and antioxidant activity in relation to the β-carotene/ linoleic acid system. The TEP levels in the CG, CM and CB extracts were (24.15 ± 1.59), (44.18 ± 1.73) and (49.21 ± 3.70) mg GAE/g extract, respectively. The CM extract showed higher DPPH, FRAP and antioxidant activity in the β-carotene/linoleic acid system. The data revealed a positive linear correlation between TEP, RSA-DPPH and FRAP (r2 = 0.85 − 0.98)
however, the β-carotene/linoleic acid system (r2 = 0.01 − 0.26) shows low correlation with the TEP levels and other assessment systems. The results suggest that co-products generated from the juice processing of the studied fruit have promising use as a natural source of antioxidants.
Databáze: OpenAIRE