caa a22 4500 46579582X CHVBK 20180323112037.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02540770 doi (NATIONALLICENCE)springer-10.1007/BF02540770 Proctor Andrew Department of Food Science and Technology, The Ohio State University, 2001 Fyffe Court, 4321O, Columbus, OH aut X-ray diffraction and scanning electron microscope studies of processed rice hull silica [Elektronische Daten] [Andrew Proctor] The structure and composition of processed rice hull ash were studied to better understand its adsorption of the soy oil components, lutein and free fatty acids. The silica-rich ash was composed largely of low order cristobalite and tridymite in the form of opal CT, with variable particle size. On heating of the ash there was conversion to a more ordered form of opal C, fusing of particles, and loss of potassium. Acid washing, following heating, also removed potassium and slightly reduced particle size further. Crystal form, particle size, particle fusion and potassium content may be important factors influencing ash adsorption of soy oil components. AOCS Press, 1990 Cristobalite nationallicence opal C nationallicence opal CT nationallicence rice hull ash nationallicence silica nationallicence tridymite nationallicence Journal of the American Oil Chemists' Society Springer-Verlag 67/9(1990-09-01), 576-584 0003-021X 67:9<576 1990 67 11746 https://doi.org/10.1007/BF02540770 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02540770 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Proctor Andrew Department of Food Science and Technology, The Ohio State University, 2001 Fyffe Court, 4321O, Columbus, OH aut NATIONALLICENCE 773 0- Journal of the American Oil Chemists' Society Springer-Verlag 67/9(1990-09-01), 576-584 0003-021X 67:9<576 1990 67 11746 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer