Influence of preservation by heat and cold on the physicochemical and microbiological characteristics, bioactive compounds of pulp from sapota-do-Solimões ( Quararibea cordata )

  • Monteiro S
  • Karnopp G
  • Michelon N
  • et al.
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Abstract

© 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. The aim was to evaluate the influence of preservation by heat and cold on the physicochemical and microbiological characteristics and bioactive compounds of pulp from sapota-do-Solimões (Quararibea cordata) for 180 days of storage. The pulps were submitted to the following treatments: freezing; pasteurization + freezing; refrigeration; and pasteurization + refrigeration. The treatments affected the physicochemical parameters during storage. Of particular note was the reduction in water activity, the reduction in pH in the pulps stored under refrigeration, and the lightening in color of the pulps. Ascorbic acid remained stable during freezing, and the levels of total carotenoids were maintained in the pasteurization + freezing treatment. The total phenolics remained stable up to 150 days, and the antioxidant activity decreased during storage for all the treatments. The coliforms were less than 1 log CFU.g −1 and Salmonella ssp. was absent. The pasteurization + freezing treatment, as well as the freezing treatment, maintained the quality of the pulp for 180 days of storage.

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Monteiro, S. S., Karnopp, G., Michelon, N., Arantes, A. C. N. R., Monego, M. A., Kipper, D. K., … Rosa, C. S. da. (2018). Influence of preservation by heat and cold on the physicochemical and microbiological characteristics, bioactive compounds of pulp from sapota-do-Solimões ( Quararibea cordata ). CyTA - Journal of Food, 16(1), 85–95. https://doi.org/10.1080/19476337.2017.1340342

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