Efeitos de diferentes materiais de parede no Microencapsulamento de suco misto de acerola (Malpighia emarginata DC) e ciriguela (Spondias purpurea L.)

Abstract

Chronic disease is a long-standing problem for WHO (World Health Organization), and to tackle this problem the production of food with functional properties is a considerable option. Functional foods are those that provide some health benefit. The presence of bioactive compounds, responsible for promoting functional properties in fruit, has made researchers increasingly targeted. The objective of this study is to select the best formulation of encapsulating agentes through atomization, mixed acerola and ciriguela juice. For the preparation of the injector emulsion, with 30% total solids, a factorial planning 22 was carried out with 4 central points, where the independent variables were the wall material used (100% Arabic gum; 50% Arabian gum and 50% Maltodextrin (10DE); 100% Maltodextrin (10DE)) and the concentration of Xanthan gum (0.1%; 0,2%; 0,3%). Ascorbic acid content, total carotenoids, phenolic compounds and analysis of antioxidant potential were adopted as dependent variables. A Mini Spray Dryer model MSD 1.0 atomizer from LABMAQ Brazil was used for processing the mixed juice of acerola and ciriguela powder, which operated at an inlet temperature of 140 ° C, flow of liquid 0,60 L/h using 1.2 mm diameter injector nozzle, 30 m3/h airflow and 0.6 bar air pressure. As a result, arabic gum and maltodextrin did not significantly influence the preservation of ascorbic acid and carotenoids. The negative effect of xanthan gum on the content of phenolic compounds was also obtained. Before the analyses performed the wall, material composed of maltodextrin with concentration of 0.1% of xanthan gum proved to be the best condition for it by atomizing the mixed pulp of acerola and ciriguela.