随着经济的发展和人民生活水平的提高,常规能源储量的有限性和对环境的危害性已经不能满足经济社会发展的需求,生物质能源作为可再生的清洁能源日益受到关注。以纤维质为原料制备生物乙醇是最具发展前景的生物质能源之一。淀粉质原料制备乙醇的技术已经成熟,考虑到粮食安全问题,目前我国的生物乙醇的发展已经转向“非粮”原料,即利用农副产品和农产品加工的剩余物进行生产乙醇的尝试。我国是农业大国,麸皮作为面粉加工业的剩余物, With the development of economy and improvement of people’s living standards, the limitation of conventional energy reserves and its harmfulness to the environment can no longer meet the needs of economic and social development. Biomass energy is increasingly attracting attention as a renewable clean energy. Preparation of bioethanol from fiber is one of the most promising biomass sources. The technology for producing ethanol from starchy raw materials has matured. At present, the development of bioethanol in our country has shifted to the raw material of “non-food”, that is, the attempt to produce ethanol by using the residues of agricultural and sideline products and agricultural products. China is a big agricultural country, wheat bran as the remainder of flour processing industry,