caa a22 4500 46579565X CHVBK 20180323112037.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF02631381 doi (NATIONALLICENCE)springer-10.1007/BF02631381 Adsorption of soy oil free fatty acids by rice hull ash [Elektronische Daten] [Andrew Proctor, Sevugan Palaniappan] Studies demonstrated that free fatty acids can be adsorbed from a soybean oil/hexane miscella by inorganic rice hull ash. A 1% dose was effective in diminishing free fatty acid concentrations but acid activation reduced the adsorption. Binding of free fatty acids followed a Freundlich isotherm with smaller doses of ash adsorbing more efficiently. Addition of isopropanol to the miscella promoted the adsorption, while water deactivation of the ash had no effect, possibly because water occupied sites not accessible to free fatty acids. Impaired adsorption behavior of ash heated above 700°C could have been due to disruption of the crystal form. The adsorption behavior of rice hull ash may be more fully understood with a better knowledge of adsorbent structure. The American Oil Chemists' Society, 1990 Proctor Andrew Department of Food Science and Technology, The Ohio State University, 2001 Fyffe Court, 43210-1096, Columbus, OH aut Palaniappan Sevugan Department of Food Science and Technology, The Ohio State University, 2001 Fyffe Court, 43210-1096, Columbus, OH aut Journal of the American Oil Chemists Society Springer-Verlag 67/1(1990-01-01), 15-17 0003-021X 67:1<15 1990 67 11746 https://doi.org/10.1007/BF02631381 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02631381 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Proctor Andrew Department of Food Science and Technology, The Ohio State University, 2001 Fyffe Court, 43210-1096, Columbus, OH aut NATIONALLICENCE 700 1- Palaniappan Sevugan Department of Food Science and Technology, The Ohio State University, 2001 Fyffe Court, 43210-1096, Columbus, OH aut NATIONALLICENCE 773 0- Journal of the American Oil Chemists Society Springer-Verlag 67/1(1990-01-01), 15-17 0003-021X 67:1<15 1990 67 11746 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer