Water Activity in Foods
Fundamentals and Applications
- English
- ePUB (mobile friendly)
- Available on iOS & Android
Water Activity in Foods
Fundamentals and Applications
About This Book
This second edition of Water Activity in Foods furnishes those working within food manufacturing, quality control, and safety with a newly revised guide to water activity and its role in the preservation and processing of food items. With clear, instructional prose and illustrations, the book's international team of contributors break down the essential principles of water activity and water–food interactions, delineating water's crucial impact upon attributes such as flavor, appearance, texture, and shelf life.
The updated and expanded second edition continues to offer an authoritative overview of the subject, while also broadening its scope to include six newly written chapters covering the latest developments in water activity research. Exploring topics ranging from deliquescence to crispness, these insightful new inclusions complement existing content that has been refreshed and reconfigured to support the food industry of today.
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1
Introduction: Historical Highlights of Water Activity Research
Author | Year | Title of Paper |
Scott, W.J. | 1953 | Water relations of Staphylococcus aureus at 30°C |
Christian, J.H.B. and Scott, WJ. | 1953 | Water relations of Salmonella at 30°C |
Christian, J.H.B. | 1955a | The influence of nutrition on the water relations of Salmonella oranienburg |
Christian, J.H.B. | 1955b | The water relations of growth and respiration of Salmonella oranienburg at 30°C |
Scott, W.J. | 1957 | Water relations of food spoilage microorganisms |
Fourteen food‐poisoning strains of Staphylococcus aureus have been grown in various media of known aw at 30°C. Aerobic growth was observed at water activities between 0.999 and 0.86. The rate of growth and the yield of cells were both reduced substantially when the aw was less than 0.94. The lower limits for gr...
Table of contents
- Cover
- Table of Contents
- Preface to the Second Edition
- Preface to the First Edition
- List of Contributors
- 1 Introduction: Historical Highlights of Water Activity Research
- 2 Water Activity: Fundamentals and Relationships
- 3 Water Activity and Glass Transition
- 4 State and Supplemented Phase Diagrams for the Characterization of Food
- 5 Water Mobility in Foods
- 6 Water–Solid Interactions in Food Ingredients and Systems
- 7 Water Activity Prediction and Moisture Sorption Isotherms
- 8 Measurement of Water Activity, Moisture Sorption Isotherm, and Moisture Content of Foods
- 9 Moisture Effects on Food's Chemical Stability
- 10 Water Activity and Physical Stability
- 11 Enthalpy Relaxation and Food Stability
- 12 Diffusion and Sorption Kinetics of Water in Foods
- 13 Applications for Dynamic Moisture Sorption Profiles in Foods
- 14 Effects of Water Activity (aw) on Microbial Stability as a Hurdle in Food Preservation
- 15 Baroprotective Effect from Reduced aw
- 16 Principles of Intermediate‐Moisture Foods and Related Technology
- 17 Desorption Phenomena in Food Dehydration Processes
- 18 Humidity Caking and Its Prevention
- 19 Selected Applications of Water Activity Management in the Food Industry
- 20 Water Relations in Confections
- 21 Applications of Probabilistic Engineering in Food Moisture Management to Meet Product Quality, Safety, and Shelf‐Life Requirements
- 22 Applications of Water Activity in Nonfood Systems
- 23 The Future of Water Activity in Food Processing and Preservation
- A AWater Activity of Saturated Salt SolutionsWater Activity of Saturated Salt Solutions
- B BWater Activity of Unsaturated Salt Solutions at 25°CWater Activity of Unsaturated Salt Solutions at 25°C
- C CWater Activity, Isotherm, and Glass Transition EquationsWater Activity, Isotherm, and Glass Transition Equations
- D DMinimum Water Activity Limits for Growth of MicroorganismsMinimum Water Activity Limits for Growth of Microorganisms
- E EWater Activity Values of Select Food Ingredients and ProductsWater Activity Values of Select Food Ingredients and Products
- F FWater Activity Values of Select Consumer and Pharmaceutical ProductsWater Activity Values of Select Consumer and Pharmaceutical Products
- Index
- End User License Agreement