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      Características físicas e químicas de um tipo de bacuri (Platonia insignis Mart.) sem sementes Translated title: Physical and chemical characteristics of a seedless bakuri (Platonia insignis Mart.) type

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          Abstract

          Efetuou-se a caracterização física e química de um tipo de bacuri sem sementes proveniente de uma planta estabelecida em população nativa, no município de Vigia, Pará, Brasil. Os frutos foram coletados após desprenderem-se, naturalmente, da planta-mãe e caracterizados quanto aos seguintes aspectos: peso, comprimento, diâmetro, coloração e formato do fruto, espessura da casca e rendimentos percentuais (p/p) de casca, polpa e do conjunto representado pela coluna placentária e óvulos abortados. Para a polpa, determinaram-se os teores de umidade e de sólidos solúveis totais (°Brix), o pH, a acidez total titulável e a relação sólidos solúveis totais/acidez total titulável. O bacuri sem sementes analisado apresentou tamanho diminuto, com peso médio de 89,24g, casca espessa, formato ovalado e epicarpo de cor amarela, quando completamente maduro. Os rendimentos percentuais de casca, polpa e da porção óvulos abortados mais coluna placentária foram: 81,66%, 18,13% e 0,21%, respectivamente. A polpa apresentou baixo teor de sólidos solúveis totais (10,2°B) e acidez total titulável de 1,12%. Essas características indicam que esse tipo de bacuri tem pouco valor, tanto para o consumo como fruta fresca, como para utilização industrial.

          Translated abstract

          Physical and chemical analysis were carried out in a seedless bakuri type originated from a plant located in a native population established in Vigia, Pará, Brazil. The fruits were collected after naturally falling from the mother-plant. In the physical analysis of the fruits, the following characteristics were considered: color of the epicarp, shape, weight, length, diameter, thickness of the shell and the relative proportion (w/w) of the shell, pulp and the structure represented by the placental column and aborted ovules. For the pulp were determined the moisture content, pH, titratable total acidity, total soluble solids (°Brix) and the ratio between total soluble solids and titratable total acidity. This seedless type of bakuri showed an ovate shape, yellow color, small size , mean weight of 89.24 g, thick shell, low total soluble solids (10.2°Brix) and titratable total acidity of 1.24%. The average centesimal composition for this bakuri type was: 81.66% shell, 18.13% pulp and 0.21% for structure represented by placental column and aborted ovules. The results of the physical and physicochemical analysis showed that this seedless bakuri type has litttle value for the consumption as fresh fruit, as well as for industrial use.

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            Frutas comestíveis da Amazônia

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbf
                Revista Brasileira de Fruticultura
                Rev. Bras. Frutic.
                Sociedade Brasileira de Fruticultura (Jaboticabal )
                1806-9967
                August 2002
                : 24
                : 2
                : 573-575
                Affiliations
                [1 ] Embrapa Amazônia Oriental Brazil
                [2 ] Embrapa Amazônia Oriental Brazil
                Article
                S0100-29452002000200060
                10.1590/S0100-29452002000200060
                03d2aa1f-84b3-41a4-94a9-af95039b81ee

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-2945&lng=en
                Categories
                HORTICULTURE

                Horticulture
                Tropical fruit,acidity,soluble solids,Fruto tropical,acidez,sólidos solúveis
                Horticulture
                Tropical fruit, acidity, soluble solids, Fruto tropical, acidez, sólidos solúveis

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