A Biochemical Approach to Nutrition

A Biochemical Approach to Nutrition PDF Author: Richard Allan Freedland
Publisher: Chapman & Hall
ISBN: 9780470989852
Category : Biochemistry
Languages : en
Pages : 0

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Nutrition and Enzyme Regulation

Nutrition and Enzyme Regulation PDF Author: Hugo Aebi
Publisher:
ISBN:
Category : Clinical enzymology
Languages : en
Pages : 154

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Book Description


A Biochemical Approach to Nutrition

A Biochemical Approach to Nutrition PDF Author: Richard Allan Freedland
Publisher: Chapman & Hall
ISBN: 9780470989852
Category : Biochemistry
Languages : en
Pages : 0

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Book Description


Nutritional and Toxicological Significance of Enzyme Inhibitors in Foods

Nutritional and Toxicological Significance of Enzyme Inhibitors in Foods PDF Author: Mendel Friedman
Publisher: Springer
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 594

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Book Description
Soybean protei ns are wi de 1 y used inhuman foods ina vari ety of forms, including baby formulas, flour, soy protein concentrates, soy protein isolates, soy sauces, textured soy fibers, and tofu. The presence of inhibitors of digestive enzymes in soy proteins impairs nutritional quality and possible safety of this impportant legume. Normal processing conditions based on the use of heat do not completely inactivate these inhibitors, so that residual amounts of plant protease inhibitors are consumed by animals and man. Inhibitors of digestive enzymes are present not only in legumes, such as soybeans, lima beans, and kidney beans, but also in nearly all plant foods, including cereals and potatoes, albeit in much smaller amounts. The antinutritional effects of inhibitors of proteolytic enzymes have been widely studied and can be ameliorated by processing and/or sulfur amino acid fortification. A more urgent concern is reports that rats fed diets containing even low levels of soybean-derived inhibitors, which are found in foods such as soy-based baby formulas, may develop over their lifespan pancreatic lesions leading eventually to neoplasia or tumor formation. On the other hand, recent stUdies suggest that certain enzyme inhibitors from plant foods may prevent cancer formation in other tissues. A key question, therefore, is whether inhibitors from plant foods constitute a human health hazard.

The Exocrine Pancreas

The Exocrine Pancreas PDF Author: Stephen Pandol
Publisher: Morgan & Claypool Publishers
ISBN: 1615041389
Category : Medical
Languages : en
Pages : 66

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Book Description
The secretions of the exocrine pancreas provide for digestion of a meal into components that are then available for processing and absorption by the intestinal epithelium. Without the exocrine pancreas, malabsorption and malnutrition result. This chapter describes the cellular participants responsible for the secretion of digestive enzymes and fluid that in combination provide a pancreatic secretion that accomplishes the digestive functions of the gland. Key cellular participants, the acinar cell and the duct cell, are responsible for digestive enzyme and fluid secretion, respectively, of the exocrine pancreas. This chapter describes the neurohumoral pathways that mediate the pancreatic response to a meal as well as details of the cellular mechanisms that are necessary for the organ responses, including protein synthesis and transport and ion transports, and the regulation of these responses by intracellular signaling systems. Examples of pancreatic diseases resulting from dysfunction in cellular mechanisms provide emphasis of the importance of the normal physiologic mechanisms.

Molecular Biology of the Cell

Molecular Biology of the Cell PDF Author:
Publisher:
ISBN: 9780815332183
Category : Cells
Languages : en
Pages : 0

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Regulation: Digestion, Nutrition, Excretion

Regulation: Digestion, Nutrition, Excretion PDF Author: G. A. Kerkut
Publisher: Elsevier
ISBN: 1483286207
Category : Science
Languages : en
Pages : 656

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Book Description
In this volume, seven of the chapters deal with feeding and diet, which is reasonable since insects consume an estimated l5-20% of all the world's planted crops. Many insects even have a specialized larval feeding stage that usually occupies a different ecological niche to the adult and so does not compete for the adult's food stock. Other chapters describe the means by which insects maintain their water balance, nitrogen balance and temperature balance under a range of conditions. These involve regulation by hormonal and behavioural systems that are also described here. The l4 chapters are all extensively illustrated and referenced and therefore provide excellent summaries of current knowledge. They will be of great value to entomologists, zoologists and biologists in general.

Biology for AP ® Courses

Biology for AP ® Courses PDF Author: Julianne Zedalis
Publisher:
ISBN: 9781947172401
Category : Biology
Languages : en
Pages : 1923

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Book Description
Biology for AP® courses covers the scope and sequence requirements of a typical two-semester Advanced Placement® biology course. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology for AP® Courses was designed to meet and exceed the requirements of the College Board’s AP® Biology framework while allowing significant flexibility for instructors. Each section of the book includes an introduction based on the AP® curriculum and includes rich features that engage students in scientific practice and AP® test preparation; it also highlights careers and research opportunities in biological sciences.

Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc

Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc PDF Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309072905
Category : Medical
Languages : en
Pages : 798

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Book Description
This volume is the newest release in the authoritative series issued by the National Academy of Sciences on dietary reference intakes (DRIs). This series provides recommended intakes, such as Recommended Dietary Allowances (RDAs), for use in planning nutritionally adequate diets for individuals based on age and gender. In addition, a new reference intake, the Tolerable Upper Intake Level (UL), has also been established to assist an individual in knowing how much is "too much" of a nutrient. Based on the Institute of Medicine's review of the scientific literature regarding dietary micronutrients, recommendations have been formulated regarding vitamins A and K, iron, iodine, chromium, copper, manganese, molybdenum, zinc, and other potentially beneficial trace elements such as boron to determine the roles, if any, they play in health. The book also: Reviews selected components of food that may influence the bioavailability of these compounds. Develops estimates of dietary intake of these compounds that are compatible with good nutrition throughout the life span and that may decrease risk of chronic disease where data indicate they play a role. Determines Tolerable Upper Intake levels for each nutrient reviewed where adequate scientific data are available in specific population subgroups. Identifies research needed to improve knowledge of the role of these micronutrients in human health. This book will be important to professionals in nutrition research and education.

Enzymes in Human and Animal Nutrition

Enzymes in Human and Animal Nutrition PDF Author: Carlos Simões Nunes
Publisher: Academic Press
ISBN: 0128094265
Category : Technology & Engineering
Languages : en
Pages : 592

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Book Description
Enzymes in Human and Animal Nutrition is a detailed reference on enzymes covering detailed information on all relevant aspects fundamental for final use of enzymes in human and animal nutrition. Topics explored include selection, engineering and expression of microbial enzymes, effects of probiotics on enzymes in the digestive tract, potential new sources of enzymes, valorization of plant biomass by food and feed enzymes. Economics and intellectual property issues are also examined. - Examines the role of enzymes in nutrition and in the production of food and animal feed so that food industry and academic researchers can understand applications of enzymes in the health of humans and animals - Begins with a thorough overview of selection, engineering and expression of microbial enzymes - Examines extremophile organisms as a potential new source of enzymes - Includes discussion of analytics, economics and intellectual property to increase applicability of the rest of the book outside of the lab

Nutrition and Genomics

Nutrition and Genomics PDF Author: David Castle
Publisher: Academic Press
ISBN: 0080920829
Category : Technology & Engineering
Languages : en
Pages : 311

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Book Description
Nutrigenomics is the rapidly developing field of science that studies nutrient-gene interaction. This field has broad implications for understanding the interaction of human genomics and nutrition, but can also have very specific implications for individual dietary recommendations in light of personal genetics. Predicted applications for nutrigenomics include genomics-based dietary guidelines and personalized nutrition based on individual genetic tests. These developments have sweeping ethical, legal and regulatory implications for individuals, corporations and governments.This book brings together experts in ethics, law, regulatory analysis, and communication studies to identify and address relevant issues in the emerging field of nutritional genomics. Contributing authors are experts in the social aspects of biotechnology innovation, with expertise in nutrigenomics. From addressing the concern that nutrigenomics will transform food into medicine and undermine pleasures associated with eating to the latest in the science of nutrigenomics, this book provides a world-wide perspective on the potential impact of nutrigenomics on our association with food. - Explores the rapidly developing, yet not fully understood, impact of nutrigenomics on the relationship to food medicalization, genetic privacy, nutrition and health - Provides ground for further exploration to identify issues and provide analysis to aid in policy and regulation development - Provides ethical and legal insights into this unfolding science, as well as serving as a model for thinking about issues arising in other fields of science and technology