ОЧИЩЕННЯ ЗЕРНА КІНОА – ВАЖЛИВИЙ ЕТАП ПІСЛЯЗБИРАЛЬНОЇ ОБРОБКИ

Abstract

In the world and in Ukraine, the quinoa market is growing rapidly due to its extremely beneficial properties for the body. Quinoa is one of the few gluten-free crops with a high content of easily soluble proteins, which provides the possibility of making special foods for children, people who play sports, vegetarians and diabetics. Quinoa grain contains a lot of protein: from 16.2% to 20%, the amino acid composition of the protein is very balanced, quinoa grain also contains carbohydrates, fats high in lecithic acid, fiber, minerals and vitamins of group B. The dynamics of sown areas and quinoa production in the world. The work is devoted to the organization of the operation of purification of quinoa grain, which is an important stage of its post-harvest processing. Any processing of grain is associated with its purification from impurities. The presence of impurities negatively affects the efficiency of grain storage and its technological features, which leads to a decrease in yield and quality of processed products. Therefore, cleaning operations occupy a central place in the post-harvest processing of grain. We have determined the geometric dimensions and calculated the basic geometric parameters of quinoa grain, which are the main indicators for the organization and conduct of the cleaning process. To identify the necessary working bodies and determine the optimal size of the holes for the separation of the mixture into fractions, the analysis of the variability of the grain size of the main crop and the size of the released impurity. Based on these data, a correlation table is constructed. Analysis of the correlation table shows that for effective cleaning of quinoa grain it is necessary to use sieves with a diameter of 3… 3.5 mm to remove large impurities and sieves 1.0×20, with a diameter of 1.6 and 1.8 mm. Based on the data of the correlation table, a fractional scheme of quinoa grain purification was developed, with the appropriate shapes and sizes of sieve holes. This scheme of purification of quinoa grain is effective and allows to isolate 93% of impurities.