الفهرس 
INTRODUCTION AND LITERATURE REVIEWOnly 14 pages are availabe for public view
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Abstract
Edible films and coatings play an important role in the quality, safety,
transportation, storage and display of wide range of fresh and processed foods. They
can diminish main alteration by avoiding moisture losses and decreasing adverse
chemical reaction rates. Also, they can prevent spoilage and microbial contamination
of foods. Additionally ,Scaling up of manufacturing of edible coatings for food,
Determining optimum conditions based on piping and pumping system was made
necessary to handle a given flow, fluid density and viscosity ,cost of electricity and
efficiency of pump as pumping cost. Rheological behavior and thixotropic effect
was determined for carrageenan and CMC solutions.
The measurements revealed that scaling up mixing is based upon constant power
/volume, equal blend duration, and adjusting the impeller/tank (D/T) diameter ratio
was possible. A four –blade impeller was utilized to homogenize 1%carrageenan
solutions at 70 . Also, mixing parameters (Power number, Blend number and
Pumping number) were determined at different D/T ratios. Cost- effective pipe
diameter and optimum pipe diameter per unit length were also determined.