Nearly half (47 percent) of the protein powders tested contained dangerous levels of toxic heavy metals by California 's ...

including the transformations of raw materials through processing, microbiological and biochemical transformations and their impact on product quality and properties. The role of technologies ...

They treated whey proteins at high temperatures in acidic ... The value of the recovered gold is 50 times higher than the raw materials and energy costs for the process, Mezzenga says.