Panorama e desempenho industrial das principais variedades utilizadas em uma indústria de arroz em Itaqui – RS

Abstract

Rice is a cereal widely consumed in Brazil, especially in the form of polished grains. In this study, data from loads received by a rice processing industry in the western region of Rio Grande do Sul were evaluated. Samples of paddy rice from the 5 main cultivars received (IRGA 431 CL, IRGA 424 RI, GURI INTA CL, PUITÁ INTA-CL and BRS PAMPA CL) were collected and their characteristics, such as yield, presence of defects, typification and cooking characteristics, were evaluated. The main cultivar currently received is IRGA 424 RI, followed by GURI INTA CL. Most of the materials had whole grain yield above 58%, with the exception of the GURI cultivar, which had a yield of 56%. The cultivars IRGA 431 CL and PUITA INTA CL stand out, which had whole grain yield above 64%. There were differences in the typification of the materials, with GURI INTA CL and BRS PAMPA CL being classified as type 1, influenced by chalky, green, stained and pecked grains, while the others were classified as type 2. Regarding cooking characteristics, all evaluated materials had low Gelatinization Temperature (GT), but the GURI INTA CL cultivar had a lower gravimetric yield (GY) (3.6 times) compared to the other cultivars (3.9 times). No significant differences (p<0.05) were found in the volumetric yield (VY) among the evaluated materials. The profile of the evaluated cultivars meets the needs of the Brazilian consumer market, meaning materials with reduced cooking time, yet remaining fluffy and exhibiting excellent overall yield for both consumers and the industry.