Enzyme Technology BiologyMad（酶技术BiologyMad）.pdfVIP

Enzyme Technology For thousands of years natural enzymes made by microorganisms have been used to make products such as cheese, bread, wine, and beer. Enzymes are now used in a wide range of industrial processes. The study of industrial enzymes and their uses is called enzyme technology. The advantages and disadvantages of using enzymes are directly related to their properties: Advantages Disadvantages They are specific in their action and are They are highly sensitive to changes in therefore less likely to produce unwanted by- physical and chemical conditions surrounding products them. They are easily denatured by even a small increase in temperature and are highly They are biodegradable and therefore cause susceptible to poisons and changes in pH. less environmental pollution Therefore the conditions in which they work must be tightly controlled . They work in mild conditions, i.e. low The enzyme substrate mixture must be temperatures, neutral pH and normal uncontaminated with other substances that atmospheric pressure, and therefore are energy might affect the reaction. saving Microbes are still the most common source of industrial enzymes. Microorganisms produce enzymes inside their cells (intracellular enzymes) and may also secrete enzymes