期刊论文

Su, X.;Wang, K.

中文

辐射研究与辐射工艺学报

1000-3436

2022

40

2

78-87

10.11889/j.1000-3436.2021-0210

2020CX04 ）资助 第一作者：武小芬，女，1987 年9月出生，2012 年于华中农业大学食品科学专业获工学硕士学位，现从事辐照技术在农业废弃 物利用中的应用研究，助理研究员 ，E-mail :wxf334@163.com 通信作者：王克勤，研究员，E-mail: wkq6412@163.com；苏小军，教授，E-mail: suxiaojun5606@163.com 收稿日期：初稿 2021-06-03；修回 2021-07-13 Supported by the Key Research and Development Program of Hunan Innovative Province Project (2019NK2031) and Agricultural Science and T echnology Innovation Fund of Hunan Province (2020CX45 and 2020CX04) First author: WU Xiaofen (female) was born in September 1987, and obtained her master’ s degree in food science from Huazhong AgriculturalUniversityin2012.Nowsheisanassistantprofessorengagingintheapplicationofirradiationtechnologyin agricultural waste. E-mail: wxf334@163.com Correspondingauthor:W ANG Keqin,professor ,E-mail:wkq6412@163.com; SUXiaojun,professor ,E-mail:suxiaojun5606@163.com Received03June2021;accepted13July2021

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研究5 MeV电子加速器辐照(吸收剂量400 kGy)对甲酸循环分离南荻纤维素、木质素和木糖的影响,并对南荻纤维素酶解效果和结构特征进行分析。结果表明:辐照组南荻经甲酸循环分离,纤维素平均纯度达81.13%,木质素和木糖回收率分别为28.68%和10.16%,均高于对照组样品;随着循环次数的增加,木糖浓度和木质素纯度升高,最终对照组和辐照组南荻木糖浓度分别为31.35 mg/mL和37.35 mg/mL,木质素纯度均超过90%。傅里叶变换红外光谱和X射线衍射分析表明,经甲酸分离的南荻纤维素发生甲酰化修饰,结晶度提高,同时,南荻甲酸纤维素酶解120 h转化率达到54.30%~57.47%,显著高于南荻原料。采用甲酸循环分离工艺能够有效...

The effect of 5-MeV electron accelerator irradiation of 400 kGy on the formic acid cycling separation of cellulose, lignin, and xylose from Triarrhena lutarioriparia (TL) were studied, and the enzymatic conversion rate and structural characteristics of TL cellulose were analyzed. For 400 kGy irradiated TL, the results revealed that the average purity of cellulose was 81.13% and the recovery of lignin and xylose were 28.68% and 10.16%, respectively, which were higher than those of the unirradiated sample. The recovery of cellulose, concentration...