Author
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Sessa, David |
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Submitted to: Annual Meeting and Expo of the American Oil Chemists' Society
Publication Type: Abstract Only Publication Acceptance Date: 4/28/2000 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: To best use renewable resources, the basic relationship between structure and function must be understood. Considerable research has been published on the phase behavior of incompatible blends with protein/polysaccharide (P/P). We will address some of the basic concepts essential to do "something" with these blends either by using their incompatibility or by making them compatible. Mixed polymer systems that do not react chemically are usually dominated by the enthalpy of the segment-segment interactions where potential interactions are endothermic in nature and are not favored. At sufficiently high concentration, their repulsive forces can lead to phase separation. If these phase- separated blends possess gelling ability, their gel networks can generate multi-textured products. When the mixing process is exothermic, interactions will be attractive. This can lead to the formation of soluble and/or insoluble complexes. Covalently bound polymers can produce new functional ingredients, some of which possess good emulsion stabilizing abilities. Applications of physical and/or chemical binding of P/P blends will be discussed with respect to their solubility and emulsion effects and texture formation. |
