英语翻译Enzymes are highly specific biocatalysts ,functioning at

英语翻译
Enzymes are highly specific biocatalysts ,functioning at high conversion rates under mild physiological conditions in aqueous solutions .they occur naturally inside all living organisms but can also occur in nature as extracellular enzymes secreted by organisms into the environment.Over 2000 enzymes have been isolated but only about 20 have gained significant commercial importance and most of these are hydrolases,for example amylases ,proteases ,pectinases and cellulases .other enzymes of importance are glucose isomerase and glucose oxidase.