INVESTIGADORES
BAUMLER erica Raquel
congresos y reuniones científicas
Título:
Effect of different thermal treatments in dehulling ability of safflower seeds (Carthamus tinctorius L.) doi: 10.13031/2013.16927
Autor/es:
BAÜMLER, ERICA; RICCOBENE, ISABEL; NOLASCO, SUSANA
Lugar:
Canadá
Reunión:
Congreso; ASAE/CSAE Annual International Meeting, Paper Number 04022. ASAE Annual International Meeting; 2004
Institución organizadora:
American Society of Agricultural, Technical Library.
Resumen:
In the oil industry, partial dehulling of seeds before the oil extraction constitutes a relevant stage of process and this could affect both the quality of the products and the industrial capacity. The decrease of moisture content in seed of oil crops can improve the ability of seed dehulling considerably thus to benefit the process of oil extraction. The dehulling process for safflower seeds is not often utilized due to its low efficiency and difficulties. The objective of this work was to determine the optimum moisture content for the dehulling of the safflower seed considering the fine production during seed dehulling. Another aim was to explore the effect of thermal pre-treatments on the seed dehulling ability. Dehulling ability was defined as the ratio (%) between the proportion of hull mechanically extracted and the real proportion of seed hull. A decrease in the moisture content of seeds increases not only their ability for dehulling but also the amount of fines originated. The optimum moisture for the process (maximum dehulling, minimum fines originated) carried out in one and two stages was the same (3,5%), getting the dehulling of about 37% for the process carried out in one stage and of 79% for the process in two stages. The dehulling ability of safflower seeds was affected, in great measure, for superior temperatures to the reference (21ºC), presenting an irregular behavior. The same one implies that for temperature lees of about 100 °C, the dehulling ability is smaller that for reference temperature, increasing quickly for higher temperature. Cooling the safflower seeds previously at -5°C allowed increasing the dehulling ability respect to the obtained at the reference temperature, operating with one or two stages. The obtained results suggest that establishing strategies of handling of the seeds, in the stages of dehulling and extraction of oil, will optimize the process on the whole.