Effect of biodegradable coatings on the shelf life of <i>Hancornia speciosa</i>

Felicio, Naiara Tays Francisco; Ferreira, Suzane Martins; Oliveira, Taysa Martins de; Moraes, Emmerson Rodrigues de; Soares, Dayana Silva Batista

doi:10.1590/1983-40632021v5164825

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Brasil

Pesquisa Agropecuária Tropical

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Special Supplement: Cerrado [Brazilian Savanna] • Pesqui. Agropecu. Trop. 51 • 2021 • https://doi.org/10.1590/1983-40632021v5164825 copy

Effect of biodegradable coatings on the shelf life of Hancornia speciosa

Efeito de coberturas biodegradáveis no tempo de vida útil de Hancornia speciosa

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The production of Hancornia speciosa Gomes, in Brazil, has increased significantly in recent years, with a concomitant increase in post-harvest losses, making it important to find out new techniques that contribute to extend the shelf life of this fruit without altering its physical, sensory and nutritional characteristics. The present study aimed to apply biodegradable coatings made from chitosan, whey protein, lactic acid and cassava starch to H. speciosa, as well as to assess their efficiency on the shelf life of the fruits. For that, physico-chemical analyses were performed to determine the pH, acidity, ºBrix, phenolic compounds, vitamin C and moisture content. The coatings with 1 % of chitosan, 4 % of whey protein, 3 % of cassava starch and 1.5 % of lactic acid presented satisfactory results at ambient temperature (25 ºC), delaying the ripening process, when compared to the controls.

KEYWORDS:
Brazilian Savanna; tropical fruit; post-harvest losses

Whey protein	Chitosan	Lactic acid	Cassava starch
Glycerol (2 %)	Chitosan (1 %)	Lactic acid (1.5 %)	Unflavored gelatin (2 %)
Unflavored gelatin (2 %)	Lactic acid (1 %)	Unflavored gelatin (2 %)	Cassava starch (3 %)
Whey protein (4 %)	Unflavored gelatin (2 %)	Distilled water (96.5 %)	Distilled water (95 %)
Distilled water (92 %)	Distilled water (96 %)	-	-

Day			Treatments Chitosan
Day	Control	Whey protein	Treatments Chitosan	Lactic acid	Cassava starch
0	84.67 A^* * Different letters in the same row indicate a significant difference among treatments (p = 0.05), according to the Tukey test. ± 0.74	84.67 A ± 0.74	84.67 A ± 0.74	84.67 A ± 0.74	84.67 A ± 0.74
2	85.79 A ± 0.15	85.22 B ± 0.39	82.74 B ± 0.81	85.63 A ± 0.30	85.20 A ± 0.20
4	84.19 BC ± 0.14	86.27 A ± 0.39	86.41 A ± 0.23	86.18 A ± 0.09	85.04 B ± 0.36
6	81.07 A ± 2.22	81.89 A ± 2.21	84.29 B ± 2.17	85.55 A ± 0.67	83.64 A ± 0.61
8	83.43 A ± 1.96	86.49 A ± 0.34	83.57 A ± 1.29	84.32 A ± 0.55	84.77 A ± 1.67

Day			Treatments Chitosan
Day	Control	Whey protein	Treatments Chitosan	Lactic acid	Cassava starch
0	2.22 A^* * Different letters in the same row indicate a significant difference among treatments (p = 0.05), according to the Tukey test. ± 0.53	2.22 A ± 0.53	2.22 A ± 0.53	2.22 A ± 0.53	2.22 A ± 0.53
2	27.24 A ± 0.46	20.01 BC ± 0.70	16.17 C ± 3.74	21.66 B ± 0.35	24.50 AB ± 0.66
4	33.58 CD ± 0.88	51.48 AB ± 0.91	42.22 BC ± 10.43	23.92 D ± 11	58.97 A ± 0.64
6	82.60 A ± 2.96	85.61 B ± 13.13	72.39 A ± 32	7.62 A ± 3.50	65.25 A ± 6.37
8	10.28 A ± 2.19	12.06 A ± 1.84	7.59 A ± 3.02	9.88 A ± 1.00	7.57 A ± 0.67

Escola de Agronomia/UFG Caixa Postal 131 - Campus II, 74001-970 Goiânia-GO / Brasil, 55 62 3521-1552 - Goiânia - GO - Brazil
E-mail: revistapat.agro@ufg.br

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[TFN1] ^*
Different letters in the same row indicate a significant difference among treatments (p = 0.05), according to the Tukey test.