What Has Government Done to Our Money? What Has Government Done to Our Money? What Has Government Done to Our Money? is a 1963 book by Murray N. Rothbard that details the history of money, from early barter systems, to the gold standard, to present day systems of paper money. Rothbard explains how money was originally developed, and why gold was chosen as the preferred commodity to use as money. The essay, "What Has Government Done to Our Money?" was written by Rothbard as an objective historical account with a provocative title. In contrast, "The Case for a 100 Percent Gold Dollar" was an essay with an
Industrial enzymes medium, mild isolation conditions must be used. Depending on the intended use of the enzyme, different levels purity are required. For example, enzymes used for diagnostic purposes must be separated to a higher purity than bulk industrial enzymes to prevent catalytic activity that provides erroneous results. Enzymes used for therapeutic purposes typically require the most rigorous separation. Most commonly, a combination of chromatography steps is employed for separation. The purified enzymes are either sold in pure form and sold to other industries, or added to consumer goods. Industrial enzymes Industrial enzymes are enzymes that are commercially used in a variety