Título:	Bioactive compounds and antioxidant capacity of umbu (Spondias tuberosa) at two ripening stages.
Autoria:	GOUVEA, R. F. MATTA, V. PONTES, S. M. CAVALCANTI, N. B.
Afiliação:	R. F. GOUVEA, UNIVERSIDADE FEDERAL DO RIO DE JANEITO; VIRGINIA MARTINS DA MATTA, CTAA; SERGIO MACEDO PONTES, CTAA; NILTON DE BRITO CAVALCANTI, CPATSA.
Ano de publicação:	2013
Referência:	In: IFT ANNUAL MEETING & FOOD EXPO, 2013, Chicago. Book of abstracts. Chicago: IFT, 2013.
Conteúdo:	Umbu is a tropical fruit characteristic of the semi-arid region of Brazil. It is very appreciated and traditionally consumed fresh or made into juice due to its pleasant sweet and sour flavor. As the desirable characteristics of a fruit depends on its final destination, the objective of this work was to determine the bioactive compounds of umbu pulp at two stages of ripening aiming at its use in formulations of drinks with potential functional properties. Fruit pulps were obtained by extraction in 0.5 mm sieves depulper of fruits from the experimental field of Embrapa Tropical Semiarid, Pernambuco, Brazil, in two ripening stages: green and mature. Samples were analyzed for determination of total phenolics content using Folin reagent and expressed as gallic acid, vitamin C by titration using DCFI method and total carotenoids content expressed in β-carotene, besides their antioxidant capacity by ABTS●+ method and expressed as Trolox equivalent. The obtained results showed that the vitamin C content of the pulp was lower for the mature fruit, 28.8 ± 1.9 mg/100 g, against 46.0 ± 1.8 mg/100 g for the green fruit. Although it is not the most common behavior for fruits, this is also observed in other tropical fruits like acerola, for example. The other analyzed compounds, phenolics and carotenoids, as well as the antioxidant capacity, presented an opposite behavior, increasing with maturity. A slight increase was observed for the total phenolics, from 256.2 ± 0.9 to 288.3 ± 1.0 mg/100 g and a high increase for carotenoids content, from 439.2 ± 22.3 to 1271.1 ± 37.9 μg/100 g, which was expected as the fruit color changes from green to yellow with ripening. The characterization of this fruit regarding its composition in bioactive substances may contribute to its valuation and further use as raw material for products development by fruit juice industry.
Thesagro:	Fruta Tropical Umbu Spondias Tuberosa Caatinga
NAL Thesaurus:	Spondias Tropical and subtropical fruits
Palavras-chave:	Compostos bioativos Capacidade antioxidante Substâncias bioativas Bioma caatinga
Tipo do material:	Resumo em anais e proceedings
Acesso:	openAccess
Aparece nas coleções:	Resumo em anais de congresso (CPATSA)