The world's rare selenium resources need to be managed carefully. Selenium is extracted as a by-product of copper mining and there are no deposits that can be mined for selenium alone. Selenium has unique properties as a semi-conductor, making it of special value to industry, but it is also an essential nutrient for humans and animals and may promote plant growth and quality. Selenium deficienc...

Probably the most direct method of measuring the degree to which the animal body utilizes dietary protein for those purposes for which this class of nutrients alone can serve is by means of a study of the nitrogenous metabolism under certain definite conditions. These conditions are: first, that in so far as possible the diet contains only that protein or mixture of proteins which it is desired...

There is a dearth of information on the percentage of waste during preparation of food by the average woman. Such figures would be of value in dietary surveys, since some food tables give analyses for raw foods only 'as purchased', so that edible portions on dietary records must often be converted to 'as purchased' amounts before conversion to calories and nutrients. During two long-term dietar...

Student wastage in higher education is a problem of great importance in our society. The time has come to try to start a service to give specialised help for redeployment in continued education or in suitable employment that carries further training prospects. This would be not only a humane social service, but a real component of the educational and economic system. At present, wastage in the ...

Background: Foodservice is an important issue in hospital settings, and patients’ levels of satisfaction are often indicated by consumption and plate waste. Objective: The current study compared patient satisfaction in hospital areas and other factors and determined the relationship between patient satisfaction and plate waste. Methods:</str...

Polyhydroxyalkanoates (PHAs) are biopolymers with desirable material properties similar to petrochemically derived plastics. PHAs are naturally produced by a wide range of microorganisms as a carbon storage mechanism and can accumulate to significantly high levels. PHAs are an environmentally friendly alternative to their petroleum counterparts because they can be easily degraded, potentially r...