SciELO - Scientific Electronic Library Online

vol.24 número2Influência do uso de ovo líquido pasteurizado e ovo desidratado nas características da massa alimentíciaAnálise térmica da carne de coelhos índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Food Science and Technology (Campinas)

versão impressa ISSN 0101-2061
versão On-line ISSN 1678-457X


PAES, Sabrina S.; MATSUI, Kátia N.; LAROTONDA, Fábio D. S.  e  LAURINDO, João B.. A simple device for on-line determinations of liquid density and suspension concentration. Ciênc. Tecnol. Aliment. [online]. 2004, vol.24, n.2, pp.261-264. ISSN 0101-2061.

A simple device was developed to determinate simultaneously the density and the concentration of particle suspensions. Cassava starch suspensions were used as a model to carry out the experiments and to develop the equipment. The determinations were based on the measure of the force suffered by a spherical plastic buoy immersed in the suspension under study. This force was transmitted to a force measure electronic cell by means of a metal stem. The experimental results showed that the device developed is a very good densimeter, which can be used to determine suspension concentration with good accuracy, when the relation between density and suspension concentration is known. Results of glycerin and a commercial soy oil density measures were in good agreement with the ones obtained in the literature and by picnometry technique, respectively.

Palavras-chave : particles; suspension; density; concentration; force; measure.

        · resumo em Português     · texto em Português     · Português ( pdf )


Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons