Recobrimentos à base de carboximetilcelulose e dextrina em mangas 'Tommy Atkins' armazenada sob refrigeração

  • Amariz A
  • Lima M
  • Trindade D
  • et al.
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Abstract

Objetivou-se avaliar a eficiência de recobrimentos à base de carboximetilcelulose (CMC) e dextrina em manga 'Tommy Atkins' armazenada durante zero, dez e 20 dias sob refrigeração (12,4±3,1°C e 72±12% UR) e, posteriormente, submetida às condições de ambiente (20,3±3,0°C e 40±7% UR) por três, seis, oito e nove dias. Os recobrimentos CMC 1,0% + dextrina 0,2%, CMC 0,8% + dextrina 0,5% e CMC 0,5%+dextrina 1,0% foram comparados ao controle. O delineamento experimental foi inteiramente casualizado, em fatorial 4x7 (recobrimento x tempo de armazenamento), com quatro repetições compostas por três frutos. A aplicação de CMC 1,0% + dextrina 0,2% ou CMC 0,8% + dextrina 0,5% retardou o acúmulo de sólidos solúveis, a redução da acidez titulável e a evolução da cor da casca, com incremento no brilho superficial dos frutos, o que garantiu melhor aparência. Os efeitos indicam atraso da maturação, sendo mais evidentes no tratamento CMC 0,8% + dextrina 0,5%.It was aimed to evaluate the efficiency of coatings based on carboximethyl cellulose (CMC) and dextrin applied in 'Tommy Atkins' mango fruit stored for zero, ten and 20 days under refrigeration (12.4±3.1°C and 72±12% RH) and, after this period, submitted to ambient conditions (20.3±3.0°C and 40±7% RH) for three, six, eight and nine days. The CMC 1.0% + dextrin 0.2%, CMC 0.8% + dextrin 0.5% and CMC 0.5% + dextrin 1.0% coatings were compared to the control. The experimental design was completely randomized in factorial 4x7 (coating x storage time), with four replicates constituted by three fruits. The application of CMC 1.0% + dextrin 0.2% or CMC 0.8% + dextrin 0.5% delayed the soluble solids accumulation, the titratable acidity reduction and the skin color evolution, increasing fruit brightness that ensured a better appearance. The responses indicate a delay on maturation that was more evident on CMC 0.8% + dextrin 0.5% treatment.

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APA

Amariz, A., Lima, M. A. C. de, Trindade, D. C. G. da, Santos, A. C. N. dos, & Ribeiro, T. P. (2010). Recobrimentos à base de carboximetilcelulose e dextrina em mangas “Tommy Atkins” armazenada sob refrigeração. Ciência Rural, 40(10), 2199–2205. https://doi.org/10.1590/s0103-84782010001000024

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