Physical-chemical and chemical characterization of Passiflora cincinnata Mast fruits conducted in vertical shoot positioned trellis and horizontal trellises system
AUTOR(ES)
D’abadia, Ana Claudia Alves
FONTE
Rev. Bras. Frutic.
DATA DE PUBLICAÇÃO
05/12/2019
RESUMO
Resumo Passiflora cincinnata Mast., conhecida como maracujá da caatinga ocorre no Semiárido nordestino, Goiás, Minas Gerais e na Bahia. A região de cultivo e os sistemas de manejo das espécies do gênero Passiflora podem interferir na qualidade físico-química dos frutos. Objetivou-se avaliar características físico-química e química dos frutos de duas progênies (CPEF220 e CBAF2334) selecionadas de P. cincinnata conduzidas em espaldeira e latada. Frutos no estádio de maturação fisiológica foram avaliados quanto à coloração e textura da casca, pH, sólidos solúveis totais, acidez titulável, ratio, flavonoides, antocianinas e polifenóis da polpa sem sementes. Foi utilizado o delineamento inteiramente casualizado, em esquema fatorial 2 x 2 (progênies x sistemas de condução), com três repetições de quatro plantas. Foi realizada a análise de variância, e as médias foram comparadas utilizando o teste de Tukey, a 5% de probabilidade. Os frutos da seleção CBAF2334 apresentaram mais pigmentos verdes e mais flavonoides. Os frutos foram caracterizados de coloração verde com nuances amareladas, com baixa saturação de cor, nas duas populações. O sistema de condução não afetou as características físicas, físico-química e os teores de antocianinas e polifenóis das progênies de P. cincinnata. Os frutos das espaldeiras apresentaram 56,73% a mais de flavonoides em comparação aos obtidos na latada.Abstract Passiflora cincinnata Mast. or Caatinga passion fruit is widely cultivated in the northeastern semi-arid regions of Goiás, Minas Gerais, and Bahia. The system of cultivation and field management of the Passiflora species affects the physicochemical quality of its fruits. In this study, we evaluated the chemical and physico-chemical characteristics of the fruits of 2 progenies (CPEF2220 and CBAF2334) of P. cincinnata species using the vertical and horizontal trellis system. Fruits were collected from the plants at their physiological maturation stage and tested for the fruit skin color and texture and the pH, total soluble solids, titratable acidity, pulp acidity ratio, and the contents of flavonoids, anthocyanins, and polyphenols in the seedless fruit pulp. The experimental design was completely randomized in a 2 x 2 factorial scheme (progenies x conduction system) performed in 3 replications using 4 plants in each. The analysis of variance and the means were compared using the Tukey’s test at 5% probability. The results revealed that the CBAF2334 fruits presented with greener pigments and greater flavonoids. The fruits were characterized by their green color with some yellowish nuances and a low color saturation in both the progenies. The conduction system was not found to affect the physical and physicochemical characteristics as well as the anthocyanin and polyphenol contents of the studied species. The fruits of plants cultivated on vertical trellis presented with 56.73% more flavonoid content than those cultivated on horizontal trellis.
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