微波预处理稻草糖化工艺研究

STUDY ON MICROWAVE PRETREATMENT OF RICE STRAW IN SACCHARIFICATION PROCESS

比较了不同微波处理方式对稻草糖化过程的影响。结果显示,在本试验条件下,微波与碱联合预处理稻草最有利于稻草糖化。对微波功率及处理时间进行了考察,并对经微波与碱联合预处理的稻草糖化的工艺条件通过正交试验进行了优化,得到稻草最佳糖化条件:底物浓度 10g/L,温度 45℃,pH值 4. 8,每克底物酶用量 20mg。

The saccharification processes of rice straw were investigated using three different microwave irradiation treatment methods.The results showed that rice straw pretreated by combining microwave irradiation with alkali treatment together was the most favorable approach for saccharification of rice straw under this test condition.The effects of microwave irradiation power and irradiation time on saccharification was examined and the saccharification conditions were optimized by an orthogonal test.The optimal saccharification conditions were:substrate concentration 10 g/L,temperature 45 ℃,pH value 4.8 and enzyme loading 20 mg/g substrate.