期刊论文

Analysis of degradation products of rapeseed straw irradiated with ~(60)Co–γ

中文

湖南农业大学学报(自然科学版)

1007-1032

2017

43

1

92-97

10.13331/j.cnki.jhau.2017.01.016

2012AA101804:国家高技术研究发展计划（863计划） 2015NK3009:湖南省科技厅项目

本校为第一机构

以油菜秸秆为材料,采用~(60)Co–γ辐照,设6个辐照剂量处理,分别为0(CK)、400、600、800、1 000、 1 200 kGy,考察不同剂量辐照处理后油菜秸秆3大主要组分降解率的变化,并采用气质联用法对辐照后全产物进行分析。结果表明:随着剂量的增大,纤维素、半纤维素和木质素降解率都有不同程度的提高;当辐照剂量为1 200 kGy时,纤维素、半纤维素和木质素降解率分别达到69.06%、42.57%和4.99%;未辐照油菜秸秆水提液乙酸乙酯萃取物中分别检测到脂肪酸类物质22种、芳香类物质5种,未检测到呋喃类物质,而从不同剂量辐照后样品中分别检测到脂肪酸类物质25种、芳香类物质17种,呋喃类物质5种,且各类产物的种类与含...

In this experiment, rapeseed straw was used as material, six irradiation doses of ~(60)Co–γ(0, 400, 600, 800, 1 000, 1 200 kGy) were designed to analyse the degradation products of cellulose, hemicellulose and lignin by GC–MS. The results showed that the degradation rates of cellulose, hemicellulose and lignin were all improved in different degrees with the increasing of dose. With the dose of 1 200 kGy, the degradation of cellulose, hemicellulose and lignin was 69.06%, 42.57% and 4.99%, respectively. 22 fatty acids, 5 aromatics and no furan...