APLICAÇÃO DE COBERTURAS BIODEGRADÁVEIS EM MANGABAS (Hancornia Speciosa Gomes) E EFEITO SOBRE A VIDA ÚTIL

Abstract

The production of mangaba in Brazil has increased considerably in recent years and in parallel to this large volume produced, there is a high percentage of losses, which makes it necessary to know about techniques that contribute to extend its useful life of the fruits without changing the physical characteristics, sensory and nutritional. Various post-harvest methods can be used to extend the useful life of vegetables, such as the use of biodegradable coverings. This work aimed to apply the biodegradable coatings of chitosan, whey protein, lactic acid and manioc starch in mangabas and to evaluate its efficiency in preserving fruit useful life. To evaluate the useful life of the samples, physical-chemical analyzes of pH, acidity, brix content, phenolic compounds, vitamin C, moisture and ash were carried out with an interval of two days between analyzes during a period of eight days. The results obtained were analyzed by the Tukey test at a 5% level of significance. It can be observed that in the post harvest of mangabas the coverage of 1% chitosan and 1.5% lactic acid in relation to the other treatments obtained the smallest decrease in the results in the analysis of acidity, pH and soluble solids indicating that there was a delay maturity and consequently increasing its useful life compared to the control sample in these eight days of storage temperature (25 ° C), the 4% whey protein coverage comparing the other coatings proved to be efficient in the analysis of ascorbic acid content , phenolic compounds, moisture and ash determination although statically it does not differ with the treatments.