10 resultados para Mangosteen


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The work had as objective the physico-chemical characterization of yellow mangosteen fruits. Six samples of 25 fruits were harvested in yellow mangosteen plants of the Active Germoplasm Bank of São Paulo State University and characterized by evaluation of length and width, weight, percentage and number of seeds per fruit, peel and pulp percentage, soluble solid (SS), titratable acidity (TA), vitamin C and SS/TA rate. Yellow mangosteen fruit is an intermediate vitamin C source with an average content 120.33 mg/100g of fresh fruit and has good technological quality.

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The application of technologies to extend the postharvest life of mangosteen fruit was studied and compared to storage at 25 °C/70-75%R.H (25 °C control treatment). The fruits were packed in expanded polystyrene (EPS) trays (5 fruits/tray). Five treatments were carried out at 13 °C/ 90-95% RH: application of carnauba wax coating, lecithin + CMC (carboxymethyl cellulose) coating, 50 µm LDPE (low density polyethylene) film coating, 13 µm PVC (Polyvinyl chloride), and non-coated sample (13 °C control treatment). Physicochemical analyses were performed twice a week. A statistical design was completely randomized with 8 repetitions for each treatment plus the control treatment. The results were submitted to variance analysis, and the averages compared by the Tukey test at 5% probability. Among the quality parameters analyzed, more significant differences were observed for weight loss, texture, and peel moisture content. The results showed that the maximum storage period for mangosteen at 25 °C is two weeks; while storage at13 °C can guarantee the conservation of this fruit for 25 days. Therefore, the treatment at 13 °C/90-95% RH without the use of coatings and films was more effective and economical.

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O trabalho teve como objetivo a caracterização físico-química de frutos de mangostão amarelo (Garcinia xanthochymus Hook). Seis amostras de 25 frutos cada foram colhidas em plantas de mangostão amarelo do Banco Ativo de Germoplasma da Universidade Estadual Paulista e caracterizadas pela avaliação de diâmetro e altura, peso, percentagem e número de sementes por fruto, percentagem de casca, percentagem de polpa, sólidos solúveis (SS), acidez titulável (AT), vitamina C e relação SS/AT. O mangostão amarelo tem boas qualidades tecnológicas e é uma fonte intermediária de vitamina C com conteúdo médio de 120,33 mg/100g de fruta fresca.

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The novel molecular marker technique Randomly Amplified DNA Fingerprinting (RAF) was used to survey genetic relationships between 37 accessions of the tropical fruit G. mangostana (mangosteen) and among 11 accessions from eight other Garcinia species. Although mangosteen is believed to reproduce exclusively through apomixis, our results show that considerable genetic diversity exists within G. mangostana and between other Garcinia species. Among the 37 G. mangostana accessions examined, nine different genotypes were identified which clustered into three distinct groups based on correspondence analysis (reciprocal averaging). For 26 (70%) of the accessions no marker variation was detected over 530 loci screened. A further eight (22%) accessions exhibited very low levels of variation (0.2-1%) suggesting at least one well conservedm angosteen genotype. The remaining three accessions (8%) showed extensive variation (22-31%) compared with the majority of accessions. The three mangosteen groups were 63-70% dissimilar to the other Garcinia species investigated. The genetic diversity identified in this research will assist in the conservation of Garcinia germplasm and provides a valuable framework for the genetic improvement of mangosteen.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Avaliaram-se as características físicas do fruto e físico-químicas da casca do mangostão colhido em diferentes períodos da safra (início, meio e fim). As características físicas dos frutos variam significativamente (p≤0,05) do início ao fim da safra, e observou-se que a média de peso dos frutos variou de 91,33 a 50,82 gramas, e a casca representa, em média, de 61,39 a 76,86% do peso total do fruto. A caracterização físico-química mostrou que a casca possui elevado teor de umidade (64,5 a 66%), fibras totais (24,9 a 29,1%), alta atividade de água (0,96 - 0,98), baixo valor energético (24,8 a 34,7 Kcal/100 g) e expressivo teor de antocianinas totais (25,9 a 63,9 mg/100 g), principalmente no período intermediário da safra.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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1981

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El presente trabajo de investigación se realizó con el propósito de esclarecer y brindarle información pertinente y actualizada a los productores nacionales de frutas exóticas como el mango y el mangostán, acerca de las oportunidades comerciales que estos poseen con países pertenecientes a la Unión Europea (UE), debido al creciente consumo de frutas en estos países y al acuerdo comercial vigente que posee Colombia y la UE. Con el fin de que el sector agrícola crezca y pueda establecerse en mercados diferentes al nacional, facilitando el crecimiento económico del sector y del país. Así mismo, se buscó ilustrar a los empresarios colombianos acerca de los potenciales consumidores, formas de ingreso y los requisitos sanitarios y fitosanitarios solicitados en dichos países. Así como, las ventajas y desventajas que poseen frente a otros competidores del Suroeste Asiático y Africano, productores asiduos de frutas exóticas y grandes exportadores mundiales, que a la vez poseen convenios con la UE, que facilitan el ingreso de sus productos a la misma. De esta forma, esta investigación reduce la brecha entre la información que poseen los productores nacionales del sub-sector agrícola, frente a la información existente del mercado, mitigando las desventajas de la desinformación y analizando las oportunidades más favorables para los mismos.