title: Levulinic acid production from wheat straw.
abstract: Studies were carried out on the effects of temperature, acid concentration, liquid:solid ratio and reaction time on levulinic acid production from wheat straw using response surface methodology. The P-value of the coefficient for acid concentration was 0.0002, suggesting that this was highly significant. The quadratic effects of temperature and liquid:solid ratio were also significant and their P-values were <0.0001 and 0.0027, respectively. The coefficient determination (R(2)) was good for the second-order model. The optimal conditions for levulinic acid production from wheat straw were 209.3 degrees C, 3.5% acid concentration, 15.6 liquid:solid ratio and 37.6 min of reaction time resulted 19.86% yield.
authors.affiliation: Department of Chemical and Biochemical Engineering, Zhejiang University, Zheda Road 38, Hangzhou 310027, China. changchun2000@126.com <changchun2000@126.com>
authors.forename: Chun
authors.initials: C
authors.lastname: Chang
authors.forename: Peilin
authors.initials: P
authors.lastname: Cen
authors.forename: Xiaojian
authors.initials: X
authors.lastname: Ma
mesh_terms: D002681:China; D002849:Chromatography, Gas; D006868:Hydrolysis; D007982:Levulinic Acids / Q000138:chemical synthesis*; D008962:Models, Theoretical; D018547:Plant Stems / Q000737:chemistry*; D012044:Regression Analysis; D013696:Temperature; D013997:Time Factors; D014908:Triticum / Q000737:chemistry*
chemical_list: D007982:Levulinic Acids; C032246:levulinic acid