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Vol. 11 No. 2 (2017)

Fruits section

Edible coating in the post-harvest conservation of endemic mangaba

https://doi.org/10.17584/rcch.2017v11i2.6670

Published 2018-01-06

  • Ana Paula Silva Siqueira
    • ,
  • Maria Eduarda Iachinski Melo
    • ,
  • Felipe de Oliveira Bonifácio
    • ,
  • Leonardo José Urzêda Nunes de Melo
    • ,
  • Lucas Silva Tizzo
    • ,
  • Eli Regina Barbosa de Souza

Ana Paula Silva Siqueira
Instituto Federal Goiano, Campus Morrinhos, Morrinhos-GO

Maria Eduarda Iachinski Melo
Instituto Federal Goiano, Campus Morrinhos, Morrinhos-GO

Felipe de Oliveira Bonifácio
Instituto Federal Goiano, Campus Morrinhos, Morrinhos-GO

Leonardo José Urzêda Nunes de Melo
Instituto Federal Goiano, Campus Morrinhos, Morrinhos-GO

Lucas Silva Tizzo
Instituto Federal Goiano, Campus Morrinhos, Morrinhos-GO

Eli Regina Barbosa de Souza
Universidade Federal de Goiás, Campus Samambaia, Goiânia-GO

Fruit of Harconia speciosa. Photo: A.P. Silva Siqueira

Abstract

Brazilian Cerrado is one of the largest biomes in the world and is considered the richest one. Mangaba fruit is representative of this biome, but it is highly perishable. The aim of this study was to evaluate the application of edible coatings on post-harvest mangaba. Fruits with a good appearance and absence of injuries were used. The experiment was done with a factorial scheme (3 treatments × 6 storage periods). After sanitization and drying, the mangabas received the treatments: (1) whey protein coating; (2) corn starch coating; and (3) no coating (control). Trays with the fruits were stored at room temperature (25°C). Mass loss, pH, total soluble solids (TSS), total titratable acidity (TTA), firmness and ascorbic acid levels were evaluated  after 0, 2, 4, 6, 8, and 10 days of storage. The data were evaluated with analysis of variance, Tukey test and regression. The edible coating with whey protein obtained satisfactory results in the conservation of mangaba, showing good results for the TSS/TTA ratio (16) and vitamin C (116 mg/100 g). The coatings influenced the shelf-life and post-harvest characteristics of this fruits, but the coating with whey protein was the most indicated for mangaba.

Keywords

Covering, Harconia scpeciosa var. gardineri, cerrado, shelf-life.

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