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      • HARVEST
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      Recovery and kinetics study of isoelectric precipitation of sunflower protein in a tubular precipitator

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      Date
      1997-01-01
      Author
      Raphael, Matheo Lue
      Type
      Thesis
      Degree Level
      Doctoral
      Metadata
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      Abstract
      In this research, up to 97% w/w and 65% w/w of the proteins in the laboratory and industrially defatted sunflower meals, respectively, were extracted using aqueous alkaline solutions at pH 10.0. Up to 84% of these soluble proteins were recovered as solids when the pH was lowered from 10.0 to 4.0 (isoelectric pH) using aqueous HCl acid. The amount of proteins recovered as solids decreased with decreasing concentrations of the acid. Three types of precipitator configuration were used in this study: the batch, mixed suspension mixed product removal (MSMPR), and the tubular precipitators. Factors affecting the particle size distributions and the solids yield were studied. The batch precipitator was found to produce precipitates with high solids concentrations (yield), but small mean panicle sizes $({
      Degree
      Doctor of Philosophy (Ph.D.)
      Department
      Chemical Engineering
      Program
      Chemical Engineering
      Committee
      Rohani, Sohrab
      Copyright Date
      January 1997
      URI
      http://hdl.handle.net/10388/etd-10212004-000508
      Collections
      • Graduate Theses and Dissertations
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