Evaluation of cooking potatoes and carrots in cooker Solar type "Olla"

Abstract

The study of solar cookers to cook food is an important and environmentally correct alternative, then, causes the reduction of greenhouse gases. The study aimed to evaluate the cooking of vegetables potatoes and carrots in Olla type solar cooker in relation to the physico-chemical and microbiological features. The carrot cooked in solar cooker had high content of protein (0.29%), carbohydrates (18.49%) and lipids (0.080%) than the obtained by stove LPG (0.23% protein, 9.56% 0.054% of carbohydrates and lipids). The potatoes cooked in solar cooker had high content of protein (0.82%) and lower lipid content (0.043%) and carbohydrates (32.57%) than the obtained by stove LPG (0.16% protein, 0.077% lipid and 37.57% carbohydrate). Cooked vegetables in both stoves were not contaminated by fecal coliform (<3.0 MPN/mL), so were within the limits established by Brazilian Legislation. The solar cooker type Olla demonstrated efficacy for cooking vegetables potatoes and carrots.