In one aspect, the invention is directed to polypeptides having an amylase and/orglucoamylase activity, polynucleotides encoding the polypeptides, and methodsfor making and using these polynucleotides and polypeptides. In one aspect,the polypeptides of the invention can be used as amylases, for example, alphaamylases, to catalyze the hydrolysis of polysaccharide, oligosaccharide orstarch into sugars. In one aspect, the invention provides delayed release compositionscomprising an desired ingredient coated by a latex polymer coating. In alternativeembodiments, enzymes are used to make biofuels, e.g., ethanol, butanol, propanol,or a gasoline-ethanol mix, including a bioethanol, biopropanol, biobutanol,or a biodiesel, or for any form of fuel or biomass processing.
