Tesis
Efeito de diferentes operações de secagem e armazenagem na qualidade de duas cultivares de soja
Fecha
2018-08-03Autor
Oliveira, Marília Boff de
Institución
Resumen
In order to adapt to the international marketing standards, there is a growing concern
regarding the quality of the soybeans produced, and the post-harvest stages can
preserve the quality of the beans until the commercialization. The objective of this
work was to evaluate the physical and physico-chemical quality of soybean grains of
RR and RR2-PRO cultivars submitted to different drying temperatures and storage
conditions under the different water contents under real conditions and volumes of
receiving and storage of a storage unit, and controlled conditions in prototype drying
and storage systems. The experiment I was carried out at Cooperativa Tritícola de
Espumoso Ltda. (Cotriel), in the municipality of Rio Pardo, RS. The experimental
treatments were: T1 - Wet soybean grains; T2 - Dry soybean grains RR; T3 - Dry
soybean grains RR2; T4 - Dry soybeans in dryer 1; T5 - Dry soybeans in dryer 2; T6 -
Dry soybean grains in dryer 3, T7 - Wet soybean grains (SUL) + dry soybeans in
dryer - Silo 1; T8 - Dry soybeans in dryer - Silo 2; T9 - Dry soybean grains RR2 - Silo
3; The experiment II was carried out at the Federal University of Santa Maria, where
two cultivars (RR and RR2 PRO) were used, three drying temperatures being 35, 45
and 55 ° C, after drying the batches were stored for a period of 60 days at
temperatures of 10 and 20 ° C. The physical and physicochemical quality of the
soybean grains was determined before and after drying and during the storage time,
evaluating the physical classification, porosity, unit and apparent specific mass,
electrical conductivity, dry mass, crude protein and lipids. It is concluded that the
electrical conductivity increases according to the increase of the drying temperature,
the cultivar RR has higher content of protein and lipids, with the increase of the
drying temperature increases the porosity and decreases the specific mass, the
porosity of the beans increases the electrical conductivity increased with the storage
time, the soybean grains stored in Silo 1 presented higher yield in ethereal extract
and crude protein, compared to the conditions of Silo 2 , Silo 3 and Silo 4,
independent of the soybean cultivar.