sentences:  The production of acetone by acetoacetate decarboxylase-containing or clostridial bacteria was utilized in large-scale industrial syntheses in the first half of the twentieth century.In the 1960s, the industry replaced this process with less expensive, more efficient chemical syntheses of acetone from petroleum and petroleum derivatives.However, there has been a growing interest in acetone production that is more environmentally friendly, causing a resurgence in utilizing acetoacetate decarboxylase-containing bacteria.