Sustainable Initiatives: Utilization of Papaya Residues as Raw Material for Fermentation Process

Abstract

Brazil stands out as the world's second largest producer of fruits, with consumption ranging from both raw and industrialized fruit. During the industrialization process, there is the generation of waste that has to be recycled. In this context, this study aims to support the use of breast waste as a substrate for fermentation. The breast waste is collected, sanitized and two treatments are prepared: one with breast waste and sugar broth (TA) and another with breast waste and cane broth (TB); or pure cane broth was used as a negative control (NC). After adding yeasts, the substrates were incubated at 30°C for 24 hours and the total dissolved solids theory (°Brix) was monitored with a refractometer. After this period, distillation and collected sample samples were carried out for specific yield and density analyzes that were evaluated by means of a digital densimeter. During the evaluation of °Brix consumption, it was observed that there was a reduction during fermentation showing that there was fermentation. The TB sample was identified as the one with the highest density, indicating a lower alcohol concentration. This study evidences the feasibility of producing ethyl alcohol from breast waste, presenting itself as a promising alternative to be used as raw material for other processes.