Industrialização do arroz: quantitativos e possibilidades para os subprodutos gerados por uma indústria local

Abstract

The rice beneficiation process in industries generates a series of by-products, so this work sought to estimate the generation of by-products of the process, based on data from a rice processing company, and to describe some possibilities of use. Data collection was carried out through process monitoring and data research in the year 2020. In the period, the industry received more than 278.000 t of rice and produced almost 150.000 t of type 1 polished white rice, its main product. The main by-products generated were rice husk, rice bran, broken rice and rice grits. The rice husk is used for burning in the company's boilers and furnaces, but around 80% is sold for composting, energy generation and silica production, which can be used in the electronics, civil construction, ceramics and chemical industries. The bran is marketed mainly to oil extraction and animal feed production companies, as its use in human food is still very low. The broken grains are destined for animal feed companies and for the production of rice flour. The efficient destination of the generated by-products and the approximation of companies interested in receiving these by-products, with quality standards more suited to their needs, are ways to expand their use. This can encourage the installation of new companies in the region, interested in investing in the development of new products, such as foods with an appeal for healthiness, sustainability and regionality, in addition to reducing environmental impact.