SciELO - Scientific Electronic Library Online

 
vol.17 issue4-7Control of a loop polymerization reactor using neural networksSalt effect in the solubility of hydrogen in n-alcohols at pressures up to 10 MPa and temperatures up to 498.15 K author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Brazilian Journal of Chemical Engineering

Print version ISSN 0104-6632On-line version ISSN 1678-4383

Abstract

FARIA, L.J.G.  and  ROCHA, S.C.S.. Optimization of annatto (Bixa orellana L.) drying in fixed bed. Braz. J. Chem. Eng. [online]. 2000, vol.17, n.4-7, pp.483-496. ISSN 0104-6632.  http://dx.doi.org/10.1590/S0104-66322000000400013.

The drying of annatto seeds (Bixa orellana L.), red piave cultivate, was studied in a fixed bed dryer. The best conditions were estimated to minimize the loss of coloring and to obtain final moisture of the seeds in appropriate levels to its conservation and maintenance of quality. The quantification of the influence of entrance variables in the final contents of bixin and moisture seeds and the identification of the optimal point was performed through the techniques of factorial design, response surfaces methodology, canonical analysis and desirability function. It was verified that the final moisture of the seeds may be estimated by a second-order polynomial model and that the final content of bixin is only significantly influenced by the time of drying being described properly by a linear model, for the seeds used in this study.

Keywords : drying; response surfaces methodology; annatto.

        · text in English

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License