玉米秸秆蒸汽爆破降解产物的分析  

Identification of Degraded Products from Steam-exploded Corn Stalk

作　　者：朱均均[1] 勇强[1] 陈尚钘[1] 徐勇[1] 张晓萍[1] 余世袁[1] 

机构地区：[1]南京林业大学林木遗传与生物技术省部共建教育部重点实验室,江苏南京210037

出　　处：《林产化学与工业》2009年第2期22-26,共5页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金(30871992);国家"863"计划(2008AA05Z401);江苏高校自然科学重大基础研究(06KJA22015)

摘　　要：采用高效液相色谱(HPLC)和气质联用(GC-MS)色谱技术对玉米秸秆蒸汽爆破降解产物进行分析。玉米秸秆经蒸汽爆破预处理后,其纤维素、半纤维素和木质素降解损失分别为9.60%、47.98%和17.55%。采用HPLC对碳水化合物降解和分解产物定量分析,100g玉米秸秆预处理后,产生甲酸2.10g、乙酸2.00g、乙酰丙酸0.10g、5-羟甲基糠醛0.08g和糠醛0.13g。采用GC-MS对木质素和提取物降解产物定性分析,共检测出14种芳香类化合物、22种脂肪酸类化合物和5种呋喃化合物。A variety of degraded products from corn stalk after steam-explosion pretreatment were identified by HPLC and GC-MS analysis. The losses of cellulose, hemicellulose and lignin were 9.60 % , 47.98 % and 17.55 %, respectively, when corn stalk was pretreated by steam-explosion. Quantitative analysis of degraded products from carbohydrates indicated that 2.10 g formic acid, 2.00 g acetic acid, 0.10 g levulinic acid, 0.08 g 5-hydroxymethylfurfural and 0.13 g furfural were produced from 100 g corn stalk after pretreatment. The qualitative analysis of degraded products from lignin and extractive indicated that 14 aromatic compounds, 22 aliphatic acids and 5 furan compounds were produced.

关 键 词：玉米秸秆 蒸汽爆破 降解产物 气质联用 

分 类 号：TQ353.42[化学工程] TQ353.14