997 resultados para Joseph West


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Relevância:

20.00% 20.00%

Publicador:

Resumo:

West Indian cherry (Malpighia glabra L.) and pineapple (Ananas comosus (L.) Meer)juice clarification by cross-flow UF, using polysulphone hollow fiber and ceramic tubular membranes with, respectively, nominal molecular weight cut off values of 100kDaltons and average pore diameters of 0.01mm, were studied. The influence of enzymatic treatment using enzyme concentrations of 20, 100 and 300mg/L, a time of 90min and a temperature of 40ºC for depectinization was verified. The juices were then clarified in a laboratory scale filtration unit, with an effective filtration area of 0.12m² for the polysulphone hollow fiber membrane and of 0.005m² for the ceramic tubular membranes. The influence of enzymatic treatment on viscosity, turbidity and total pectin of the juice, before ultrafiltration, is reported. Membrane performance was evaluated in terms of flow rate and clarity of the permeate. The permeate flow rate of depectinized pineapple juice was higher (30 - 60%) for both membranes. Depectinized West Indian cherry juice presented a lower permeate flow rate for the polysulphone hollow fiber membrane. The increase in permeate flow rate, with the use of the 300mg/L and 100mg/L enzyme concentration was not significant, so it is economically advantageous to ultrafilter depectinized juice, treated with an enzyme concentration of 20mg/L.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Finnish Defence Studies is published under the auspices of the National Defence University, and the contributions reflect the fields of research and teaching of the University. Finnish Defence Studies will occasionally feature documentation on Finnish Security Policy. Views expressed are those of the authors and do not necessarily imply endorsement by the National Defence University.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Janamittakaavat: Duytsche mylen 15 in een graadt ; Spaensche mylen 17 1/2 in een graadt ; Engelsche en Fransche mylen 20 in een graat ; Italiaensche mylen 60 in een graat.