水稻秸秆和大豆秸秆发酵过程中物质转化的初步研究.docVIP

Southwest university of science and technology 本科毕业设计（论文） 水稻秸秆和大豆秸秆发酵过程中物质转化研究 水稻秸秆和大豆秸秆发酵过程中物质转化研究 Material Conversion During The Fermentation Of Rice Straw and Soybean Straw Abstract: Rice straw and soybean straw were used for material to analyze and to compare the material conversion during the anaerobic fermentation and the aerobic fermentation. The results showed that: in the different period of anaerobic fermentation and aerobic fermentation. In the beginning, the percentage of total sugar is decreasing regularly, at last, the curve is tending to balance. In contrast, the percentage of reducing sugar is entirely different. The curve is firstly increasing, then decreasing, finally went to balance. The trend was more obvious during the aerobic fermentation. The content of total nitrogen presented decreasing graded to one position and tended to balance. of course, during the fermentation, pH、temperature、humidity, and so on , influence the determination result. The last result showed that total sugar、reducing sugar、total nitrogen、etc, are tactic with characteristic property during the fermentation of rice. Compare anaerobic fermentation with aerobic fermentation. The former more severe than the feedback at the preliminary phase. The feedback was more severe at the last of fermentation. Key words: rice， fermentation，conversion 目 录 第1章 绪 论 1 1.1 概述 1 1.2 秸秆利用现状 1 1.3 秸秆的化学成份 5 1.4 研究目的和意义 6 1.5 国内外研究动态和发展水平 6 第2章 材料与方法 8 2.1 试验技术路线 8 2.1.1 试验材料 8 2.1.2 试验器材 8 2.1.3 试验药剂 9 2.2 测定指标及方法 9 2.2.1 总氮测定 9 2.2.2 总磷测定 10 2.2.3 总糖和还原糖的测定 10 第3章 结果与分析 12 3.1 水稻秸秆发酵过程物质转化分析 12 3.1.1总糖在发酵过程中分析 12 3.1.2 发酵过程中对还原糖数据的分析 13 3.1.3 发酵过程中对总磷数据的分析 15 3.1.4发酵过程中对总氮测定的分析 16 3.1.5发酵过程中对钾测定的分析 17 3.2大豆秸秆在发酵过程物质转化分析 19 3.2.1 发酵过程对总糖的分析 19 3.2.3发酵过程中还原糖的分析 20 3.2.3发酵过程对总磷的分析 22 3.2.4发酵过程对总氮的分析 23 3.2.5发酵过程对总钾的分析 24 结 论 27 致 谢 28 参考文献 29 第1章 绪 论 1.1 概述 平常我们经常提到的秸秆是指水稻，花生，油菜，玉米，甘蔗等田间农作物在收获果实后所剩下的一部分,农作物秸秆是具有产量大