Title 21 presents regulations promulgated by the Food and Drug Administration, the Drug Enforcement Administration, and the Office of the National Drug Control Agency in the area of food and drugs. These regulations encompass food and drugs for human and animal use, biologics, cosmetics, medical devices, radiological health, and controlled substances. Additions and revisions to this section of the code are posted annually by April. Publication follows within six months.

Valuable progress has been made in food packaging over the past two decades, reflecting advancements in process efficiency, improved safety and quality throughout the supply chain, and the need to reduce product loss and environmental impact. A new generation of food packaging systems, including active and intelligent packaging, is emerging, based on technological breakthroughs that offer the possibility of extending shelf-life, reducing food loss, and monitoring changes in the food product. Releasing Systems in Active Food Packaging closely examines such a technological breakthrough, active releasing systems, which add compounds such as antimicrobials, antioxidants, flavors, colorants, and other ingredients to packaged food products. Chapters detail examples of recent innovations in active releasing systems, and the authors systematically address their application to different food groups. Such an in-depth approach makes this a useful reference researchers, health professionals, and food and packaging industry professionals interesting in innovative food packaging technologies.

Microbes are known to live in an enormous range of environments. Their ability to survive and proliferate in diverse industrial systems is often a surprise to those not exposed to these problems in their work. These systems contain a range of potential carbon sources, one common theme being surfactants. Surfactants are often not the components most prone to spoilage since some systems contain highly susceptible natural components, such as starch and xanthum gum, but the surfactant is a key part of the formulation, and its extensive breakdown usually means that the material is beyond recovery. The aim of this book is to describe in detail all aspects of the preservation of surfactant containing materials. The book should be viewed as being in three discrete sections. • chapters 1-5 deal with and summarise essential background information • chapters 6-11 discuss in detail various end use applications • chapters 12-15 outline the regulatory and toxicology implication associated with the safe handling of preservatives Given the format of the book there is inevitably some duplication of information in the middle section with different authors describing essentially the same phenomena but on different substrates. I hope the reader will find that although different chapters touch on the same topics the information around these areas is sufficiently different to justify their inclusion in this book and to be of interest. It should also demonstrate what can be the most useful source of information, the hard practical experience of the authors.

Title 21 presents regulations promulgated by the Food and Drug Administration, the Drug Enforcement Administration, and the Office of the National Drug Control Agency in the area of food and drugs. These regulations encompass food and drugs for human and animal use, biologics, cosmetics, medical devices, radiological health, and controlled substances. Additions and revisions to this section of the code are posted annually by April. Publication follows within six months.

Recommendations developed by the Public Health Service in cooperation with state and communities, interested federal agencies and the vending machine industry, 1965.