Plant Proteins
Phenomena in Mixed Surfactant Systems
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Robert L. Ory, Editor U.S. Department of Agriculture Examines the major role plant proteins play in both human and animal diets. Discusses the use of plant proteins in both Western and traditional foods of developing countries; plant and meat protein blended foods; effects on skeletal integrity, trace mineral utilization, atherosclerosis, and cancer incidence; effects of processing on proteins; and novel, lesser known proteins. Of interest to nutritionists, food scientists, and clinicians concerned about nutritional aspects of plant proteins for humans. Also helpful to food chemists and biochemists, dieticians, and medicinal chemists concerned with nutrition. CONTENTS Plant Proteins: The ABCs of Peanut and Cowpea Flours · Field-Pea Flours as Protein Supplements · Vegetable Food Proteins in Traditional Foods · Uses of Soybeans as Foods · Incorporation of Cottonseed into Foods · Soy Proteins in Meat Products · Soy Protein Products in Whole Muscle Meats · Effects of Protein on Skeletal Integrity · Utilization of Trace Minerals in Humans · Nutritional Quality of Dry Beans · CornGlandless Cottonseed Blended Food · Influence of Protein on Serum Cholesterol · Mortality of Adventists in Relation to Diet · Protein, Starch, and Fiber from Grain Legumes · Processing and Use of Bean Flours · Winged Bean as a Source of Protein · Tropical Plants as Sources of Protein · Protein of the Sweet Potato · Cucurbit Seed Protein and Oil · Protein-Nitrogen Conservation in Yams Developed from a symposium sponsored by the Division of Agricultural and Food Chemistry of the American Chemical Society ACS Symposium Series No. 312 296 pages (1986) Clothbound LC 86-10848 ISBN 0-8412-0976-6 US & Canada $59.95 Export $71.95 Order From: American Chemical Society Distribution Office Oept. 19 1155 Sixteenth St., N.W. Washington, DC 20036 or CALL TOLL FREE 800-424-6747 and use your credit card!
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John F. Scamehorn, Editor University of Oklahoma Demonstrates the wide range of physical phenomena in which surfactant mixtures are important. Describes current thought and techniques for modeling surfactant interactions. Discusses micelle formation, surfactant adsorption on solids, surfactant adsorption at fluidfluid interfaces, solubilization, liquid crystal formation, and emulsification. Of interest to colloid and surface chemists, surface scientists, interface chemists, and anyone studying surfactant systems. CONTENTS Overview of Phenomena · Nonideal Mixed Micelles · New Mathematical Models of Mixed Micellization · Solutions of Hydrocarbon and Fluorocarbon Surfactants · Solution Properties of Mixed Surfactant Systems · Sodium Decanoate-2-Butoxyethanol in Water • Inverted Micelles of Calcium Alkarylsulfonates · Nonideal Mixed Monolayer Model · Monolayer Properties · The Penetration of Monolayers by Surfactants · Synergism in Binary Mixtures of Surfactants · Surface Adsorption and Micelle Formation · Effect of Alkyl Alcohols on Surfactants · Fluorocarbon and Hydrocarbon Surfactants · Anionic Surfactants on Alumina · Properties of Minerals Above The Critical Micelle Concentration · Competitive Adsorption of Polystyrene Latex · Vegetable Oil-Nonionic Surfactant Mixtures · The Mesophase Formation · Molecular Assemblies in Mild Surfactant Solutions · Micellar Solublization of Methanol and Triglycerides · Interfacial Properties of Nonaethoxylated Fatty Alcohol · 1-Octadecanol and Dodecylammonium Chloride · Future Perspectives Developed from a symposium sponsored by the Division of Colloid and Surface Chemistry of the American Chemical Society and the 5th International Conference on Surface and Colloid Science ACS Symposium Series No. 311 349 pages (1986) Clothbound LC 86-8062 ISBN 0-8412-0975-8 US & Canada $66.95 Export $80.95 Order From: American Chemical Society Distribution Office Dept. 18 1155 Sixteenth St., N.W. Washington, DC 20036 or CALL TOLL FREE 800-424-6747 and use your credit card!
1250 A · ANALYTICAL CHEMISTRY, VOL. 58, NO. 12, OCTOBER 1986
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Figure 5. Separation of cholesterol and cholesterol esters in human serum using optical rotation as a detection system Peaks: 1 = cholesterol and cholestanol; 2 = cholesteryl linolenate and arachindonate; 3 = cholesteryl palmitoleate and linoleate; 4 = cholesteryl palmitate and oleate; 5 = cholesteryl stéarate. Mobile phase, tetrahydrofuran:water (76:24, v/v); flow rate, 0.5 mL/min.; column, 10-μΓη C1e- Re produced with permission from Reference 16
property because it is generally associ ated with biological activity. Tradi tional polarimeters are not sensitive enough for LC detection. The instru ment has recently been improved sub stantially with a new design based on a laser (15). Currently, rotations of the order of 1 microdegree (1 ng of a mate rial injected with [a] = 100°, a path length of 1 cm, cell volume of 1 μL, and a peak volume of 10 μϋ.) can be detected. Demonstrations have been successful for the quantitation of cho lesterol in blood, sugars in urine, com ponents in shale oil, extracts of coal, and enantiomers of amino acids. The first of these applications (16) is shown in Figure 5. The laser-based polarimeter can also be used in a nonselective mode (11) (indirect polarimetry) much like the RI detector, which is limited by its poor detectability and the relatively large volumes in commercial units. If an optically active solvent is used for LC, there will be a large constant background rotation in the absence of any analyte. This background can be
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