That year, driving a car 10,000 miles cost 9 cents a mile, and gasoline sold for 27 cents per gallon. Methodology Cost calculations in this edition of Your Driving Costs are comparable to the 2012 version. The process used to estimate annual driving costs is proprietary to AAA.
Enzymes are produced by microorganisms. These microorganisms can be modified to produce enzymes with much better yield properties and purity. Such GMMs (genetically modified micro-organisms) are however not part of the final enzyme product.
There are two major classes of enzymes: metabolic and digestive. Digestive enzymes are produced primarily in the pancreas and released into the duodenum to help digest food coming from the stomach. The intestines themselves also secrete amylase and other digestive enzymes. Their function in digestion.