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为探寻环境友好的秸秆预处理方法,提高秸秆等生物质资源的利用效率,以水稻秸秆为原料,采用3种不同的低温等离子体装置:灭菌柜、介质阻止放电及射频电容耦合对其进行预处理,分别对3种方法的处理条件进行优化,并在此基础上考察预处理后秸秆对纤维素酶的吸附能力及纤维素和半纤维素的糖化效率。结果表明,与未处理的秸秆对照相比,3种方法均可以降低水稻秸秆对纤维素酶的吸附能力,同时提高秸秆中纤维素和半纤维素的糖化率;其中,介质阻挡空气放电对秸秆的处理效果最好,秸秆对酶的吸附率比未处理秸秆的对照组降低了67.6%,而纤维素和半纤维素的糖化率分别比未处理秸秆的对照组提高了34.6%和44.7%。该研究为今后利用低温等离子体预处理秸秆相关技术的改进和深入研究提供了参考。
In order to explore an environment-friendly straw pretreatment method and improve the utilization efficiency of straw and other biomass resources, rice straw was used as raw materials and three different low-temperature plasma devices were used: sterilizer, dielectric barrier discharge and RF capacitive coupling Pretreatment, respectively, to optimize the processing conditions of the three methods, and on this basis to examine pretreated straw cellulase adsorption capacity and cellulose and hemicellulose saccharification efficiency. The results showed that compared with untreated straw, all the three methods could reduce the adsorption capacity of rice straw to cellulase and increase the saccharification rate of cellulose and hemicellulose in straw. Among them, , The straw adsorption rate was 67.6% lower than that of the untreated straw, while the saccharification rates of cellulose and hemicellulose were increased by 34.6% and 44.7% respectively compared with the untreated straw control group. This study provides a reference for future improvement and further research on the technology of straw pretreatment with low temperature plasma.