2010全国生物材料大会论文集之 (979).pdf

Microwave Assisted Enzymatic Hydrolysis of Larch
for L-lactic Acid Production

YANG Xue-xin1,2 FANG Gui-zhen1
1Key laboratory of Bio-based Material Science and 1Key laboratory of Bio-based Material Science and
Technology Technology
Northeast Forestry University Northeast Forestry University
2School of tourism and cuisine Harbin, China
Harbin University merce fanggz_0@
Harbin, China
yxx310@


Abstract—Glucose production from pretreated larch by cellulose cellulose is not metabolised by lactic acid bacteria, enzymatic
enzymatic hydrolysis with cellulase was investigated and harification of this haride has to be done before
compared with no pretreatment, as a reference. The larch was fermentation. However, until recently, the cost of enzymes
pretreated with microwave, sulfuric acid hydrolysis and dilute was one of the most significant drawbacks in this kind of
sodium hydroxide solution hydrolysis respectively. The cellulose
processes. In the period of 2001-2005, Novozymes and
material was also submitted to a pretreatment with dilute
sodium hydroxide solution hydrolysis followed by microwave national renewable energy laboratory (NREL) reduced 30
and with dilute sulfuric acid solution hydrolysis followed by times the cost of the enzymes needed to produce fuel ethanol
microwave separately. The enzymatic hydrolysis experiments from