不同预处理方法对甘草渣酶解产糖量及内部结构的影响  

EFFECT OF DIFFERENT PRETREATMENT METHODS ON SUGAR YIELD AND INTERNAL STRUCTURE OF LICORICE RESIDUE

作　　者：马彩梅[1] 尚明东 Ma Caimei;Shang Mingdong(Xinjiang Shihezi Vocational Technical College,Shihezi 832000,Xinjiang,China)

机构地区：[1]新疆石河子职业技术学院,新疆石河子832000

出　　处：《精细石油化工》2023年第4期42-45,共4页Speciality Petrochemicals

基　　金：新疆石河子职业技术学院环境监测与控制科研创新团队项目。

摘　　要：为提高甘草渣的酶解产糖量,采用1%NaOH、1%Ca(OH)_(2)、1.5%H_(2)SO_(4)、蒸馏水浸泡法进行预处理,考察了不同预处理方法对甘草渣的损失量及预处理后甘草渣产糖量的影响。结果表明:水浴较微波、水浴+微波预处理方法的产糖效果好;而采用氢氧化钠作预处理剂的甘草渣水解率最大,水浴、微波、水浴+微波处理后产糖量分别为58,77,106 mg/g。氢氧化钠预处理甘草渣内部结构最松散,木质纤维素外层结构破坏最明显,此种预处理方法下的酶对纤维素的可及性最高。To improve the sugar production of enzymatic hydrolysis of licorice residue,pre-treatment was carried out using 1%NaOH,1%Ca(OH)_(2),and 1.5%H_(2)SO_(4)distilled water immersion method.The effects of different pre-treatment methods on the loss of licorice residue and the sugar production of licorice residue after pre-treatment were investigated.The results showed that the water bath method had a better sugar production effect than microwave and water bath+microwave methods,reaching up to 106 mg/g;However,after pretreatment with sodium hydroxide,the hydrolysis rate of glycyrrhiza residue was the highest,and the sugar yield was the highest,which was 58,77 mg/g and 106 mg/g,respectively.The internal structure of glycyrrhiza uralensis residue pretreated by sodium hydroxide is the most loose,and the outer structure of lignocellulose is the most damaged.The enzyme under this pretreatment method has the highest accessibility to cellulose.

关 键 词：甘草渣 预处理 微波 产糖量 

分 类 号：R284.1[医药卫生—中药学]