Permeability of cane juice in ultrafiltration membranes of acrylic vinyl co-polymer and cellulose acetate.

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  • TAKO Masakuni
    Department of Agricultural Chemistry and Agricultural Engineering, College of Agriculture, University of the Ryukyus
  • NAKAMOTO Kuniya
    Department of Agricultural Chemistry and Agricultural Engineering, College of Agriculture, University of the Ryukyus
  • NAKAMURA Sanehisa
    Department of Agricultural Chemistry and Agricultural Engineering, College of Agriculture, University of the Ryukyus
  • KOHDA Yoshihiro
    Department of Agricultural Chemistry and Agricultural Engineering, College of Agriculture, University of the Ryukyus
  • NOMURA Danji
    Department of Food Engineering, College of Engineering, ToaUniversity

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Other Title
  • ポリアクリル・ビニール共重合および酢酸セルロース膜による限外濾過での甘蔗汁の膜透過性
  • ポリアクリル・ビニール共重合および酢酸セルロース膜による限外濾過での甘蔗汁の膜透過性〔英文〕
  • ポリアクリル ビニール キョウジュウゴウ オヨビ サクサン セルロース マク

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The effects of membrane permeability on the flux and quality of raw and limed cane juice on ultrafiltration were studied by 2-3 h long-term testing(of several types with molecular weight cut-off levels from 50 000 to 100 000). The flux through XM-50, XM-100 and A-50 Tmembranes for raw juice remained at the value of about 0.100 ml·cm-2·nub>-1 until permeation volume of 250 ml, but it then decreased gradually. The flux of A-50T membrane was the greatest at the initial stage(with O.140 ml·cmcm-2·min-1), and then decreased gradually d gradually when juice limed to pH 8.1 at 10°C was used. The flux of juice limed to pH 7.0 at 85°C showed remarkably high value (at the initial stage), however it decreased rapidly with increasing permeate volume. The flux of A-50T membrane showed comparatively lower value than that of XM-membranes. The sucrose rejection of the permeate with the XM-50, XM-100 and A-50T membranes was 2, 2-5 and 5-7% for juice limed to pH 7.0 at 85°Crespectively.

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