Uso do biofilme adicionado de extrato de própolis vermelha na conservação da uva "Niágara rosada”.

Abstract

Propolis is a resinous substance and balsamic mixture that bees of the cies Ápfs me///fera 1. collect from various plants and lead to the hive. A viable alternative microbial reduction in fruit and vegetables is the protection during transport and storage with biofilms biodegradable. Given that the aim of this study was to evaluate the effect of biofilms edible base red propolis extract in different concentrations on postharvest preservation of Niagara rosada table grape. Were then compiled two formulations of biofilms, applied in grapes and stored temperatures of 7 C and 35 C for 21 days. The samples were analyzed as its physical, chemical and microbiological characteristics, for fu rther verification of the efficiency of the biofilms the base red propolis extract: We concluded that the treatments in Niagara rosada grape samples using biofilms red propolis derived from Da/berg/a ecasfophy//um (3 and 5%) associated with temperature, interference in the development of micro-organisms studied in this research. For all treatments applied there was significant variation of the leveis of moisture and ash, with the exception of the efficiency of the biofilm and biofilm 2 1, temperatures of 7' C and 35' C, respectively for the parameter of total soluble solids (' Brix), this occurred because the barrier formed by the biofilms in function of the degradation of sugars present in fruits.