Centesimal and mineral composition of the fruit in Brazilian genotypes of feijoa (Acca sellowiana)

AUTOR(ES)
FONTE

Rev. Bras. Frutic.

DATA DE PUBLICAÇÃO

05/12/2019

RESUMO

Resumo O objetivo deste trabalho foi avaliar a composição centesimal [matéria seca (MS), matéria mineral (MM), proteína bruta (PB), gordura bruta (GB) e fibra bruta (FB)] e mineral (Ca, Mg, N, P, K, Fe, Zn, Cu e Mn) nos tecidos da casca e da polpa dos frutos de goiabeira-serrana (cultivares Alcântara, Mattos, Helena e Nonante, e acesso 2316). Os genótipos apresentaram, na polpa, MS de 12,10-15,40%, MM de 0,33-0,40%, PB de 0,95-1,45%, GB de 0,56-1,72% e FB de 1,39-2,43%, e na casca MS de 12,80-17,27%, MM de 0,30-1,49%, PB de 0,56-0,88%, GB de 0,57-0,97% e FB de 2,54-3,98%. Os teores de Ca, Mg, K, N e P, na casca, foram de 96-116, 20-30, 1.588-3.635, 1.096-1.643 e 68-83 mg kg-1 de matéria fresca (MF), respectivamente, e na polpa, de 56-92, 17-29, 1.358-2.917, 2.017-3.384 e 255-374 mg kg-1 MF, respectivamente. Dentre os micronutrientes, o Fe apresentou os maiores teores na casca e na polpa (~3,5 mg kg-1 MF). Os resultados mostram que a goiaba-serrana representa importante fonte de PB, GB e FB na dieta humana, bem como de minerais, em especial de N e P na polpa, e de K e Fe na casca e na polpa.Abstract This research was carried out to evaluate centesimal [dry matter (DM), ash, and crude contents of proteins (CP), fats (CFt) and fiber (CFb)] and mineral composition (Ca, Mg, N, P, K, Fe, Zn, Cu and Mn) of peel and flesh tissues of feijoa fruit (cultivars Alcântara, Mattos, Helena and Nonante, and accession 2316). The genotypes had, in the flesh, DM of 12.10-15.40%, ash of 0.33-0.40%, CP of 0.95-1.45%, CFt of 0.56-1.72%, and CFb of 1.39-2.43%, and in the peel DM of 12.8-17.27%, ash of 0.30-1.49%, CP of 0.56-0.88%, CFt of 0.57-0.90%, and CFb of 2.54-3.98%. The contents of Ca, Mg, K, N and P in the peel were 96-116, 20-30, 1588-3635, 1096-1643 and 68-83 mg kg-1 FW, respectively, and in the flesh were 56-92, 17-29, 1358-2917, 2017-3384 and 255-374 mg kg-1 FW, respectively. Among the micronutrients, Fe had the highest content in peel and flesh tissues (~3.5 mg kg-1 FW). The results show that feijoa fruit represent a dietary source of CP, CFt and CFb, as well as of minerals, especially of P and N in the flesh, and of K and Fe in the peel and flesh tissues.

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