School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
Bioresour Technol. 2013 Jan;128:835-8. doi: 10.1016/j.biortech.2012.10.166. Epub 2012 Nov 16.
An energy-saving ethanol fermentation technology was developed using uncooked fresh sweet potato as raw material. A mutant strain of Aspergillus niger isolated from mildewed sweet potato was used to produce abundant raw starch saccharification enzymes for treating uncooked sweet potato storage roots. The viscosity of the fermentation paste of uncooked sweet potato roots was lower than that of the cooked roots. The ethanol fermentation was carried out by Zymomonas mobilis, and 14.4 g of ethanol (87.2% of the theoretical yield) was produced from 100g of fresh sweet potato storage roots. Based on this method, an energy-saving, high efficient and environment-friendly technology can be developed for large-scale production of fuel ethanol from sweet potato roots.
利用生甘薯作为原料，开发了节能型乙醇发酵技术。从霉变甘薯中分离出的黑曲霉突变株，用于生产丰富的原淀粉糖化酶，以处理生甘薯贮藏根。生甘薯根的发酵糊的粘度低于熟甘薯根。通过运动发酵单胞菌进行乙醇发酵，从 100g 鲜甘薯贮藏根中生产出 14.4g 乙醇（理论产量的 87.2%）。基于该方法，可以开发出节能、高效、环保的甘薯根大规模生产燃料乙醇的技术。
