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Evaluation of different polymer combinations in the microencapsulation of lycopenes from tree tomato (Solanum betaceum) residues

Abstract:

Tree tomato consumption in Ecuador is pervasive across the different areas; it has a great demand, but it is not used in its entirety, generating a large amount of organic waste. Through microencapsulation, products derived from active ingbkp_redients generated from this fruit can be developed. Carotenoids were extracted and concentrated from Solanum betaceum's rind in this work. In addition, active ingbkp_redients contained in the extract were microencapsulated using polymers (gum arabic and maltodextrin) at 35 and 40% of concentrations. It is necessary to control the microencapsulation temperature to avoid degradation of the material of interest. It is essential to define metabolites' activity when microencapsulated; the antioxidant activity was evaluated using a quantitative colorimetric method called DPPH. On the other hand, an in vivo model with Saccharomyces cerevisiae was used considering the growth curve of the microorganism subjecting to different factors; one of the expected growth without external agents, in the following two concentrations of oxidizing agents, were used to simulate high and low stress with sodium hypochlorite and hydrogen peroxide.