SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2013, Vol. 21 ›› Issue (5): 544-550.DOI: 10.1016/S1004-9541(13)60509-1

• 生物技术与生物工程 • 上一篇    下一篇

Optimization on the Conversion of Bamboo Shoot Shell to Levulinic Acid with Environmentally Benign Acidic Ionic Liquid and Response Surface Analysis

周存山1,2,3, 余筱洁1,2,3, 马海乐1,2, 何荣海1,2, Saritporn Vittayapadung4   

  1. 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China;
    2 Key Laboratory for Physical Processing of Agricultural Products, Zhenjiang 212013, China;
    3 School of Agriculture and Food Science, Zhejiang A & F University, Lin'an 311300, China;
    4 Faculty of Industrial Technology, Chiangrai Rajabhat University, Chiangrai 57100, Thailand
  • 收稿日期:2012-04-18 修回日期:2012-09-13 出版日期:2013-05-28 发布日期:2013-05-31
  • 通讯作者: MA Haile
  • 基金资助:

    Supported by the National Natural Science Foundation of China (30940058, 31170672), the Natural Science Foundation of Zhejiang Province of China (Y3110025), Key Laboratory for Physical Processing of Agricultural Products (JAPP2010-4) and Key Laboratory of Exploitation and Preservation of Coastal Bio-resource (2010F30003).

Optimization on the Conversion of Bamboo Shoot Shell to Levulinic Acid with Environmentally Benign Acidic Ionic Liquid and Response Surface Analysis

ZHOU Cunshan1,2,3, YU Xiaojie1,2,3, MA Haile1,2, HE Ronghai1,2, Saritporn Vittayapadung4   

  1. 1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China;
    2 Key Laboratory for Physical Processing of Agricultural Products, Zhenjiang 212013, China;
    3 School of Agriculture and Food Science, Zhejiang A & F University, Lin'an 311300, China;
    4 Faculty of Industrial Technology, Chiangrai Rajabhat University, Chiangrai 57100, Thailand
  • Received:2012-04-18 Revised:2012-09-13 Online:2013-05-28 Published:2013-05-31
  • Supported by:

    Supported by the National Natural Science Foundation of China (30940058, 31170672), the Natural Science Foundation of Zhejiang Province of China (Y3110025), Key Laboratory for Physical Processing of Agricultural Products (JAPP2010-4) and Key Laboratory of Exploitation and Preservation of Coastal Bio-resource (2010F30003).

摘要: Levulinic acid (LA) has been identified as a promising green, biomass derived platform chemical. Response surface analysis (RSA) with a four-factor-five-level central composite design (CCD) was applied to optimize the hydrolysis conditions for the conversion of bamboo (Phyllostachys Praecox f. preveynalis) shoot shell (BSS) to LA catalyzed with ionic liquid [C4mim]HSO4. The effects of four main reaction parameters including temperature, time,C[C4mim]HSO4(initial [C4mim]HSO4 concentration) and XBSS (initial BSS intake) on the hydrolysis reaction for yield of LA were analyzed. A quadratic equation model for yield of LA was established and fitted to the data with an R2 of 0.9868, and effects of main factors and their corresponding relationships were obtained with RSA. Model validation and results of CCD showed good correspondence between actual and predicted values. The analysis of variance (ANOVA) of the results indicated that the yield of LA in the range studied was significantly (P<0.05) affected by the four factors. The optimized reaction conditions were as follows: temperature of 145 ℃, time of 103.8 min,C[C4mim]HSO4 of 0.9 mol·L-1 and XBSS of 2.04% (by mass), respectively. A high yield [(71±0.41)% (by mol), triplicate experiment] was obtained at the optimum conditions of temperature of 145 ℃, time of 104 min,C[C4mim]HSO4 of 0.9 mol·L-1 and XBSS of 2% (by mass), which obtained from the real experiments, concurred with the model prediction [73.8% (by mol) based on available C6 sugars in BSS or 17.9% (by mass) based on the mass of BSS], indicating that the model was adequate for the hydrolysis process.

关键词: levulinic acid, ionic liquid, response surface analysis, bamboo shoot shell

Abstract: Levulinic acid (LA) has been identified as a promising green, biomass derived platform chemical. Response surface analysis (RSA) with a four-factor-five-level central composite design (CCD) was applied to optimize the hydrolysis conditions for the conversion of bamboo (Phyllostachys Praecox f. preveynalis) shoot shell (BSS) to LA catalyzed with ionic liquid [C4mim]HSO4. The effects of four main reaction parameters including temperature, time,C[C4mim]HSO4(initial [C4mim]HSO4 concentration) and XBSS (initial BSS intake) on the hydrolysis reaction for yield of LA were analyzed. A quadratic equation model for yield of LA was established and fitted to the data with an R2 of 0.9868, and effects of main factors and their corresponding relationships were obtained with RSA. Model validation and results of CCD showed good correspondence between actual and predicted values. The analysis of variance (ANOVA) of the results indicated that the yield of LA in the range studied was significantly (P<0.05) affected by the four factors. The optimized reaction conditions were as follows: temperature of 145 ℃, time of 103.8 min,C[C4mim]HSO4 of 0.9 mol·L-1 and XBSS of 2.04% (by mass), respectively. A high yield [(71±0.41)% (by mol), triplicate experiment] was obtained at the optimum conditions of temperature of 145 ℃, time of 104 min,C[C4mim]HSO4 of 0.9 mol·L-1 and XBSS of 2% (by mass), which obtained from the real experiments, concurred with the model prediction [73.8% (by mol) based on available C6 sugars in BSS or 17.9% (by mass) based on the mass of BSS], indicating that the model was adequate for the hydrolysis process.

Key words: levulinic acid, ionic liquid, response surface analysis, bamboo shoot shell