Intro to Packaging Final Exam| 92 Questions and Answers 100% Correct.

About what proportion of municipal waste is classified as packaging? - ANSWER-29.6% by weight or 31.6% by volume. "The four R's are used as the guiding principles for managing the waste problem. What are the four R's, in the correct order?" - ANSWER-Reduce, Reuse, Recycle and Recover. What is implied by the "cradle-to-cradle" model? - ANSWER-Cradle-to-cradle refers to instances in which the objective is to recover used packaging material and return it into the manufacturing cycle to be manufactured into new packaging. Define "packaging." - ANSWER-Packaging is a coordinated system of preparing goods for transport, distribution, storage, retailing and use. Define "sustainability." - ANSWER-Sustainability is the concept of meeting present needs without compromising the ability of future generations to meet their needs. Name the six ways of extending the natural shelf life of foods. For each method, briefly note the mechanisms by which the keeping quality of a food product is increased. - ANSWER-Reduce temperature-(freezing) slow chemical activity and reduce/stop biological activity. Thermal processing-(hot fill, sterile, sealed cans) control microorganisms. Water reduction-(drying) manages moisture content to control microorganisms. Chemical preservation-(acids, carbon dioxide, curing/smoking, antioxidants). Modified atmosphere packaging-(vacuum packaging). Irradiation-(ionization). What two packaging materials offer absolute barrier properties? - ANSWER-Glass and metal. What is meant by the "persona" of a package? - ANSWER-It is the "personality" of a package What MAP gas can act as a bacteriostat? - ANSWER-Carbon Dioxide