摘要
[Objective] The research was aimed to study the main chemical composi- tions of rice straw in the three different areas of Jiangsu Province. [Method] The cellulose, hemicellulose, lignin and crude ash of rice straw collected in Huaian, Changzhou and Zhenjiang of Jiangsu Province during 2011-2013 were determined. [Result] The change trends of cellulose and hemicellulose in three arrears in differ- ent years were consistent. The cellulose content increased after falling, and hemi- cellulose content presented declining tendency. The lignin content of rice straw fist rose then declined in Huaian and Changzhou in different years, while it presented the declining tendency in Zhenjiang. The ash content of rice straw changed little and was all less than 65% in the three areas in different years. And the chemical composition of rice straw changed significantly in different years. [Conclusion] The research could provide basis for high added-value use of crop straw.
[目的]研究了江苏省3个不同地区水稻桔秆的主要化学成分。[方法]测试江苏省淮安、常州和镇江2011~2013年收集的水稻桔秆的纤维素、半纤维素、木质素和粗灰分含量。[结果]3个地区不同年份水稻桔秆的纤维素及半纤维变化趋势一致,纤维素含量呈先下降后上升趋势,半纤维素含量呈下降趋势。淮安和常州不同年份水稻桔秆的木质素含量均呈先上升后下降趋势,镇江市呈下降趋势3个地区不同年份水稻桔秆的灰分含量变化不大,且均低于65%。且不同年份间水稻桔秆化学成分变化显著。[结论]该研究可为农作物桔秆的高附加值利用提供依据。
基金
Supported by the Speical Fund for Agro-Scientific Research in the Public Interest(201003063)~~
