Refinar búsqueda
Resultados 1-3 de 3
Pathogenicity, hemagglutinability and the effect of physicochemical agents on virus of rabbit hemorrhagic disease.
1990
Yoon I.J. | Jeon Y.S.
Renal net acid and electrolyte excretion in an experimental model of hypochloremic metabolic alkalosis in sheep
1990
Lunn, D.P. | McGuirk, S.M. | Smith, D.F. | MacWilliams, P.S.
Renal electrolyte and net acid excretion were characterized during generation and maintenance of hypochloremic metabolic alkalosis in a ruminant model. Two phases of renal response with regard to sodium and net acid excretion were documented. An initial decrease in net acid excretion was attributable to increase in bicarbonate excretion with associated increase in sodium excretion. As the metabolic disturbance became more advanced, a second phase of renal excretion was observed in which sodium and bicarbonate excretion were markedly decreased, leading to increase in net acid excretion and development of aciduria. Throughout the metabolic disturbance, chloride excretion was markedly decreased; potassium excretion also decreased. These changes were accompanied by increase in plasma renin and aldosterone concentrations. There was apparent failure to concentrate the urine optimally during the course of the metabolic disturbance, despite increasing plasma concentration of antidiuretic hormone.
Mostrar más [+] Menos [-]Retention of sialic acid content in Malaysian edible bird’s nest by heat pump drying
2017
Gan, S. H. | Ong, S. P. | Chin, N. L. | Law, C. L.
This paper presents the resultsof an experimental attempt to improve thedrying kinetics for the retention of colourand sialic acid in edible bird’s nest throughheat pump drying. Kinetics of hot air dryingand heat pump drying were studied byperforming various drying trials on ediblebird’s nest. Isothermal drying trials wereconducted in hot air drying and heat pumpdrying at a temperature range of 40 °C-90 °C and 28.6 °C-40.6 °C, respectively.Intermittent drying trials were carried outin heat pump drying with two differentmodes, which are periodic air flow supplyand step-up air temperature. Experimentalresults showed that heat pump drying withlow temperature dehumidified air not onlyenhanced the drying kinetics but alsoproduced a stable final product of ediblebird’s nest. Heat pump-dried edible bird’ssamples retained a high concentration ofsialic acid when an appropriate dryingmode was selected.
Mostrar más [+] Menos [-]