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| Lima,Annete de Jesus Boari; Corrêa,Angelita Duarte; Saczk,Adelir Aparecida; Martins,Mariana Pereira; Castilho,Rachel Oliveira. |
| Different solvents were evaluated for the extraction of jabuticaba anthocyanin pigments, identifying, quantifying and verifying the stability of the anthocyanins, as well as the conduction of three antioxidant activity assays and determination of the vitamin C levels. The maceration with ethanol acidified with HCl 1.5 mol L-1 (85:15) provides better pigment extraction and stability. The skin is anthocyanin rich, presenting 1.59 and 2.06 g 100 g-1 of dry matter in the Paulista and Sabará varieties, respectively. Cyanidin 3-glucoside is the majority pigment of the skins, followed by delphinidin 3-glucoside. The highest level of vitamin C was found in the skins and seeds of both varieties. It was verified that the skins, presented more antioxidant activity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jabuticaba; Anthocyanin; Method of extraction; Vitamin C; Antioxidant activity. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000300023 |
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| Lima,Annete de Jesus Boari; Corrêa,Angelita Duarte; Dantas-Barros,Ana Maria; Nelson,David Lee; Amorim,Ana Carolina Lourenço. |
| The aim of this work was to determine the sugar, organic acid and mineral compositions of the whole fruit and fractions (skin, pulp and seed) of the Paulista (Plinia cauliflora) and Sabará (Plinia jaboticaba) jabuticaba tree genotypes, as well as the oil compositions of their skin and seeds. High levels of sugar, especially fructose, followed by glucose and sucrose, were encountered in the fruit. In the Paulista genotype, higher levels of total and reducing sugars were found in the pulp and skin, which was not observed when comparing the whole fruit of both genotypes. Five organic acids were found in the whole fruit and in the fractions of the two jabuticaba genotypes in quantitative order: citric acid > succinic acid > malic acid > oxalic acid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plinia cauliflora; Plinia jaboticaba; Chemical constituents. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000200026 |
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