States solely is 0 .23 billion gallons (Peter . Meanwhile , the production of vegetable oil designated for various uses in the United States is estimated to be 0 .003 billion gallons , while animal fat produced in the US is two times less than that of vegetable oil (Yelton . The data derives the obvious conclusion that both the production of vegetable oil and animal fat are far from being enough to satisfy current demand for fuels on the global market . With an...











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