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Plastics have developed into the most important class of packaging materials. Their relative impermeability for substances from the surroundings has great influence on the shelf life and the quality of the packed goods. At the same time the interaction between the contents and the various components of the packaging plays a decisive role. This particular book is indispensable in the search for the optimal plastic packaging. It facilitates the estimation of the influence on the goods which come from the surroundings and from the packaging. The authors do not restrict themselves only to the description of the phenomena of diffusion or transport in theory, but they show what they mean for practical applications. Food represents the central theme as main area of application for plastic packaging. It can be considered to be the "model substance" and the findings are to be applied to many other products and systems. The main rules and regulations for food packaging of the European Community and the United States are presented in this book. Furthermore the authors emphasize the testing methods for proving the mass transport and the sensory check of the quality of the products.
This review describes the main types of stabilisers with the focus on those categories for polyolefins. It also elucidates some of the physical and chemical aspects of such products when incorporated into the polymer matrix, discussing stability during weathering, heat ageing and processing. The review is supported by several hundred relevant abstracts selected from the Polymer Library.
Nutritional Toxicology, Volume III is a compilation of reviews and research regarding nutrition and toxicology, specifically the issues that affect public health and regulation. This volume further develops understanding of the basic concepts significant to protect and promote public health and provide a credible scientific basis for public health and regulatory decisions. Composed of seven chapters, this volume further extends the discussion of the topics included in Volume I and Volume II of this series. The first two chapters deal with the topic of food safety. The first one discusses safety of food packaging materials and their health implications. The second chapter tackles the relation between neurotoxicology and food safety assessment. The next section of this book includes more detailed discussion regarding proteins (amino acids), phosphorylated derivatives, and vitamin B6 interactions. The discussion of these topics generally covers their chemical aspects, metabolism, bioavailability, and distribution in foods. The last two chapters give recommendations regarding toxicological experiments and vitamin supplement. Chapter 6 presents considerations in the designing of standardized diets in toxicological experiments. Chapter 7 gives an analysis of the risk/benefit of vitamin supplements. As with the other volumes, this book proves helpful to students, professionals, and researchers in the field of nutritional sciences, pharmacology, and biology.

Annual Report

Center for Materials Science (National Measurement Laboratory). Polymer Science and Standards Division

Published: 1983

Total Pages: 108


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