Influence of ph of potassium metabisulfite solution and removal of external skin in the elaboration of banana figs

Abstract

The present work was conducted to find ways to control enzymic browning by poliphenoloxidase in the elaboration of banana figs. Bananas were treated with SO2 by immersion in a solution of potassium metabisulfite of which, concentration, temperature, pH and time of immersion were studied, as well as the interaction between these treatments and the removal of the fruit external skin. It was concluded that the best treatment was to immerse for 10 minutes in the 2% solution at 40°C, independently of pH control. The interaction of pH and removing or not the external skin of the bananas had no influence on the ensymic browning.