On the 10th, the Chengdu Institute of Biology, Chinese Academy of Sciences announced the results of a study in the field of biofuels. The researchers improved the biofuel ethanol production and saved production costs by overcoming the characteristics of raw materials that are difficult to degrade.
With the depletion of oil and environmental pollution becoming more and more serious, the development of bio-fuel ethanol has received widespread attention and attention from all countries in the world. As the first generation of fuel ethanol, grain crops such as corn (U.S.) and sugarcane (Brazil) are the main raw materials and have been rapidly developed in the past decades.
In some developing countries with scarce land resources and food crisis, the production of fuel ethanol using food as raw material is not an economic and unrealistic strategy. Therefore, the production of second-generation biofuel ethanol from raw materials such as agriculture, forestry, and industrial waste such as straw has been extensively studied.
Chengdu Institute of Biological Sciences researchers at the Chinese Academy of Sciences stated that because biological materials such as industrial waste and straw have difficult-to-degrade chemical structural characteristics, the conversion rate is low, making the entire production process very difficult and expensive.
The researchers turned their attention to sweet potato and other tuber non-grain raw materials. Since China is the largest producer of sweet potatoes in the world, and sweet potatoes have high starch and fermentable sugars, they are ideal raw materials for 1.5-generation fuel ethanol. However, the viscosity of potato raw materials cannot be effectively degraded, which restricts the application of the conversion of fuel ethanol.
Researchers at the Chengdu Institute of Biology, Chinese Academy of Sciences, have adopted a strain of high-yield viscosity-reducing enzyme and its application, which can reduce the viscosity of potato raw materials through simple operating procedures. This will effectively solve the problem of restricting the cost of Chinese potato raw material fermentation. The problem has greatly improved the feasibility and economics of Chinese potato raw material fermentation. At present, this research has been patented by the State Intellectual Property Office. (Reporter Hu Min)
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