The influence of ripening stage and cultivation system on the total antioxidant activity and total phenolic compounds of yellow passion fruit pulp


Autoria(s): Macoris, Mariana S.; De Marchi, Renata; Janzantti, Natalia S.; Monteiro, Magali
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/07/2012

Resumo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

BACKGROUND: This work aimed to investigate the influence of both ripening stage and cultivation system on the total phenolic compounds (TPC) and total antioxidant activity (TAA) of passion fruit pulp. TPC extraction was optimized using a 23 central composed design. The variables were fruit pulp volume, methanol volume and extraction solution volume. TPC was determined using the FolinCiocalteu reaction, and TAA using the ABTS radical reaction. RESULTS: The conditions to extract TPC were 2 mL passion fruit pulp and 9 mL extraction solution containing 40% methanol:water (v/v). TPC values increased in the passion fruit pulp during ripening for both cultivation systems, ranging from 281.8 to 361.9 mg gallic acid L-1 (P?0.05) for the organic pulp and from 291.0 to 338.6 mg gallic acid L-1 (P?0.05) for the conventional pulp. CONCLUSION: TPC values increased during ripening for both organic and conventional passion fruit. The same was true for TAA values for conventional passion fruit. For organic passion fruit, however, TAA values were highest at the initial ripening stages. These results suggest that antioxidant compounds exert strong influence on the initial ripening stages for organic passion fruit, when TPC still did not reach its maximum level. Copyright (C) 2012 Society of Chemical Industry

Formato

1886-1891

Identificador

http://dx.doi.org/10.1002/jsfa.5556

Journal of The Science of Food and Agriculture. Hoboken: Wiley-blackwell, v. 92, n. 9, p. 1886-1891, 2012.

0022-5142

http://hdl.handle.net/11449/7182

10.1002/jsfa.5556

WOS:000304866900011

Idioma(s)

eng

Publicador

Wiley-Blackwell

Relação

Journal of the Science of Food and Agriculture

Direitos

closedAccess

Palavras-Chave #total antioxidant activity #total phenolic compounds #passion fruit pulp #organic food
Tipo

info:eu-repo/semantics/article