Separation of bonito extract by composite UF membranes of sulfonated polysulfone coated on ceramics |
| |
| Institution: | 1. Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail Toronto, Ontario M1C 1A4, Canada;2. Institut für Geologie, Universität Hamburg, Bundesstrasse 55, 20146 Hamburg, Germany;1. Department of Mathematics and Statistics, Gonbad Kavous University, Gonbad Kavous, Golestan 49717-99151, Iran;2. School of Computing Science and Engineering, VIT University, Vellore, Tamil Nadu 632014, India;1. Instituto de Investigaciones Agrobiológicas de Galicia, CSIC, Apartado 122, E-15780 Santiago de Compostela, Spain;2. University of Gothenburg, Department of Earth Sciences, Box 460, 405 30 Göteborg, Sweden;1. U.S. Geological Survey, Southwest Biological Science Center, Grand Canyon Monitoring and Research Center, Flagstaff, AZ 86001, USA;2. Utah State University, Department of Watershed Sciences, Logan, UT 84322, USA;3. Northern Arizona University, School of Earth Sciences and Environmental Sustainability, Flagstaff, AZ 86001, USA;4. Department of Geology and Geophysics, University of Wyoming, Laramie, WY 82071, USA |
| |
| Abstract: | Separation of ingredients in bonito extract was studied by a composite UF membrane of ceramic/sulfonated polysulfone (SPS). The bonito extract mainly contained inosine-5′-monophosphate (IMP), glutamic acid as a tasty ingredient and hypoxanthine, histidine as a putrefaction ingredient. The composite membrane showed a high rejection against negatively charged IMP, but permeated non-charged hypoxanthine. This is because of the negatively charged repulsion between the membrane and the solute. The permeation of amino acid could be controlled using the difference in isoelectric points of amino acids themselves. When the amino acid solution was filtrated by the composite membrane at pH 7, glutamic acid was rejected and no histidine was rejected. The charges of composite membrane were found to have an effect on the separation of ingredients in bonito extract.The composite membrane was stable within a wide pH range from 3 to 9, and had a thermal durability under 353 K. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
