Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Impact of Alkali Pretreatment to Enzymatic Hydrolysis of Cork Oak (Quercus Variabilis)

알칼리 전처리가 굴참나무의 효소 당화에 미치는 영향

  • Yoon, Su Young (Department of Wood and Paper Science, Chungbuk National University) ;
  • Shin, Soo-Jeong (Department of Wood and Paper Science, Chungbuk National University)
  • 윤수영 (충북대학교 목재종이과학과) ;
  • 신수정 (충북대학교 목재종이과학과)
  • Received : 2014.10.21
  • Accepted : 2014.12.05
  • Published : 2014.12.30
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Abstract

Dissolving part of xylan and lignin in lignocellulosic biomass by base can be used as pretreatment technique. Cork oak was pretreated with sodium hydroxide solution and the pretreatment effects were evaluated with two critical factors - NaOH concentration and pretreatment temperature. Some of xylan and lignin were removed by base pretreatment. At $90^{\circ}C$ and 13% NaOH pretreatment, 22.0% of lignin and 78.8% of xylan removed by base treatment. Enzymatic hydrolysis of cork oak which was pretreated at higher temperature or concentration was further improved. After pretreatment of cork oak with 13% NaOH at $90^{\circ}C$, the conversion rate of cellulose to fermentable sugars were reached up to 91.3%. At ethanol fermentation with enzymatic hydrolysate from different pretreatment conditions, all enzymatic saccharification liquids were well fermented by Saccharomyces cerevisiae.

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References

  1. Balat, M. and Balat, H., Recent trends in global production and utilization of bio-ethanol fuel, Applied Energy 86(11):2273-2282 (2009). https://doi.org/10.1016/j.apenergy.2009.03.015
  2. International Sugar Organization, World fuel ethanol outlook to 2020, pp. 2-3 (2012).
  3. Ajanovic A., Biofuels versus food production: Does biofuels production increase food prices?, Energy 36(4):2070-2076 (2011). https://doi.org/10.1016/j.energy.2010.05.019
  4. Lee, S.-E., Kim, W.-J., Son, M.-K., and Seo, Y.-B., Sugar extraction by pretreatment and soda pulping from cattail (Typha latifolia L.) (1) Extraction of sugar, Journal of Korea TAPPI 42(2):88-94 (2010).
  5. Alvira, P., Tomas-Pejo, E., Ballesteros, M., and Negro, M. J., Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review, Bioresource Technology 101:4851-5861 (2010). https://doi.org/10.1016/j.biortech.2009.11.093
  6. Sjostrom, E., Wood chemistry-fundamentals and applications, Second ed., Academic Pree, San Diego, pp. 46-48 (1993).
  7. Mirahmadi, K., Kabir, M. M., Jeihanipour, A., Karimi, K., and Taherzadeh, M. J., Alkaline pretreatment of spuce and birch to improve bioethanol and biogas production, BioResources 5(2):928-938 (2010).
  8. Lund, K., Sjostrom, K., and Brelid, H., Alkali extraction of kraft pulp fibers: Influence on fiber and fluff pulp properties, Journal of Engineered Fibers and Fabrics 7(2):30-39 (2012).
  9. Chang, J. P. and Lee, J. Y., The separation of wood main components of Pinus densiflora and Quercus variabilis by solvolysis, Journal of Korea TAPPI 19(2):37-45 (1987).
  10. Ju, X., Engelhard, M., and Zhang, X., An advanced understanding of the specific effects of xylan and surface lignin contents on enzymatic hydrolysis of lignocellulosic biomass, Bioresource Technology 132:137-145 (2013). https://doi.org/10.1016/j.biortech.2013.01.049
  11. Yang, B. and Wyman, C. E., Effect of xylan and lignin removal by batch and flowthrough pretreatment on the enzymatic digestibility of corn stover cellulose, Biotechnology and Bioengineering 86(1):88-95 (2003).
  12. Cara, C., Ruiz, E., Oliva, J. M., Saez, F., and Castro, E., Conversion of olive tree biomass into fermentable sugars by dilute acid pretreatment and enzymatic saccharification, Bioresource Technology 99:1869-1876 (2008). https://doi.org/10.1016/j.biortech.2007.03.037
  13. Shin, S.-J., Han, S.-H., Cho, N.-S., and Park, J.-M., Relationship between biomass components dissolution (xylan and lignin) and enzymatic saccharification of several ammonium hydroxide soaked biomass, Journal of Korea TAPPI 42(1):35-40 (2010).
  14. Li, M.-F., Fan, Y.-M., Xu, F., Sun, R.-C., and Zhang, X.-L., Cold sodium hydroxide/urea based pretreatment of bamboo for bioethanol production: Characterization of the cellulose rich fraction, Industrial Crops and Products 32:551-559 (2010). https://doi.org/10.1016/j.indcrop.2010.07.004
  15. He, Y., Pang, Y., Liu, Y., Li, X., and Wang, K., Physicochemical characterization of rice straw pretreated with sodium hydoxide in the solid state for enhancing biogas production, Energy & Fuels 22:2775-2781 (2008). https://doi.org/10.1021/ef8000967
  16. Wang, Y. and Deng, Y., The kinetics of cellulose dissolution in sodium hydroxide solution at low temperatures, Biotechnology and Bioengineering 102:1398-1405 (2009). https://doi.org/10.1002/bit.22160
  17. Holtzapple, M.T. and Kim, S., Lime pretreatment and enzymatic hydrolysis of corn stover, Bioresource Technology 96(18):1994-2006 (2005). https://doi.org/10.1016/j.biortech.2005.01.014
  18. da Silva, A. S., Inoue, H., Endo, T., Yano, S., and Bon, E. P. S., Milling pretreatment of sugarcane bagasse and straw for enzymatic hydrolysis and ethanol fermentation, Bioresource Technology 10(19):7402-7409 (2010).