Topics in Dietary Fiber Research

1 — The Detergent System of Fiber Analysis.- I. Introduction.- II. Systems of Fiber Analysis.- III. The Detergent Systems.- IV. Nutritional Implications of the Detergent Systems.- V. In-Vitro Cell-Wall Digestion.- VI. Procedures in the Detergent System of Fiber Analysis.- A. Reagents.- B. Procedures.- VII. Conclusions.- References.- 2 — Wheat Bran: Composition and Digestibility..- I. Introduction.- II. Morphology of Bran.- III. Composition of Bran.- A. Carbohydrates.- B. Lignin.- C. Other Components.- IV. Bran Digestibility.- V. Fiber Versus Indigestible Residue.- VI. Conclusion.- References.- 3 — The Chemical Structure of Lignin and Quantitative and Qualitative Methods of Analysis in Foodstuffs.- I. Introduction.- II. Structure of the Plant Cell Wall.- III. The Chemistry of Lignin.- A. Empirical Formulae.- B. Coupling of Lignin Monomers.- C. Structure of Lignins in Herbaceous Plants.- D. Chemical Reactivity of Some Interlignol Links.- IV. Analytical Methods for Lignin.- A. Quantitative Determination.- B. Qualitative Analysis.- V. Effect of Digestion on Lignin.- VI. Lignin Content of Human Foods.- VII. Summary.- References.- 4 — Pectin.- I. Chemistry and Nomenclature.- II. Pectic Enzymes.- III. Pectin Content of Plant Materials.- IV. Gel Formation.- V. Pectin Metabolism.- VI. Conclusion.- References.- 5 — Plant Fibers and Human Health.- I. Introduction.- II. Dietary Fiber in Vegetarian and Nonvegetarian Diets.- III. Dietary Fiber and Epidemiological Aspect of Disease.- A. Fiber Intake and Digestive System Function.- B. Fiber Intake Effect on Character and Transit Time of Stools.- C. Fiber Intake and Body Weight.- D. Fiber Intake, Blood Pressure, and Serum Cholesterol.- E. Fiber Intake and Colorectal Cancer.- IV. Conclusion.- References.- 6 — Fermentation as the Principal Cause of the Physiological Activity of Indigestible Food Residue.- I. Introduction.- II. The Indigestible Residue of Vegetable Foods and its Fate in the Body.- III. Variable Rate of Starch Digestion.- IV. Fermentation as the Cause of Intestinal Gas Formation.- V. Fermentation as the Cause of Accelerated Transit in the Large Bowel.- VI. The Effects Intestinal Bacteria and Food Residue Exert on Excretion of Sterols.- VII. Conclusions.- References.- 7 — Practical Dietary Research Design and Applications for Southwestern American Indians.- I. Introduction.- II. Fiber Selection.- III. Dietary Calculation.- IV. Dietary Design.- V. Differences in Populations.- VI. Conclusion.- References.- 8 — Paleodietetics: A Review of the Role of Dietary Fiber in Preagricultural Human Diets.- I. Introduction.- II. Coprolites from Pleistocene Contexts.- III. Desiccated Coprolites from Postpleistocene Contexts.- IV. The Role of Nonphytic Biopolymers in Preagricultural Human Diets.- V. Possible Morphological Adaptations to the Fiber Content of the Diet.- VI. Summary.- References.- Appendix — Dietary Fiber Content of Foods.- References.- Contributors.