Produção de compostos bioativos utilizando resíduo agroindustrial.

Abstract

Based on the assumption that tons of waste are constantly generated, through industrial action, and that they are discarded, in short, in an environmentally inconvenient way, enabling impacts that could be avoided through intelligent reuse. In this context, Rhodotorula glutinis yeasts have the ability to promote reuse, producing compounds with a high nutritional value such as carotenoids, using manipueira as a growth source, which would possibly be released into the environment anyway. Thus, this work aims to evaluate the characteristics of the substrate and the effects of the components of the culture medium on the biomass, lipids and carotenoids provided, through the yeast Rhodotorula glutinis and cassava. In the analysis of the agroindustrial by-product, 93.54% of moisture, 32.24 g/L of reducing sugars, 47.18 g/L of total sugars, 1.58% of proteins and 1.00% of ash are obtained, total soluble solids of 7.3 oBrix and pH equivalent to 5.30. In cultivation, the biomass obtained was 8.52 g/L in approximately 84 hours, in the meantime 1.30 mg/L of carotenoids and 0.81 g/L of lipids had been produced. Using mixed culture, the biomass obtained was 7,74 g/L, 1,68 mg/L of carotenoids and 5,86 g/L of lipids. Therefore, manipueira proved to be a potential substrate for lipid production by Rhodotorula glutinis, which can be used in fermentation processes, enriching the residue and reducing possible environmental consequences due to incorrect disposal.