Integrated Forest Biorefinery



The development of an integrated forest biorefinery (IFBR) would enable the industry to increase its revenue by producing bioenergy and new biomaterials in addition to traditional wood, pulp, and paper products. The IFBR concept also addresses the societal need to use renewable resources rather than fossil fuels to produce commodity products, liquid fuels, and electricity. The initial visualized IFBR would be based on sulfur-free, alkaline pulping of hardwood with an alkaline hemicellulose extraction step prior to pulping and spent pulping liquor gasification and lignin precipitation after pulping. New products from an IFBR based on alkaline pulping include electric power, new wood composites, liquid fuel, ethanol, chemicals, and polymers. Preextraction generates a feed stream for new bioproducts, while decreasing alkali consumption, increasing delignification rate, and reducing black liquor load. Black liquor gasification and/or lignin precipitation are an integral part of the IFBR, with the synthesis gas and precipitated lignin being the feed for liquid fuel and carbon fibers, respectively. The additional energy requirements of the IFBR would be met by gasification/combustion of waste biomass. The key to the successful implementation of the forest biorefinery (FBR) is to identify possible products that can be economically produced by a pulp and paper mill. Process integration tools can be used to identify these products. A roadmap can be developed once the products have been identified. The successful implementation of the FBR will likely be mill-specific, and will in many cases require strategic collaborations with experts.


Paper Mill Itaconic Acid Kraft Pulp Pulp Mill Black Liquor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. Alriksson B, Horváth IS, Sjöede A, Nilvebrant NO, Jönsson LJ (2005) Ammonium hydroxide detoxification of spruce acid hydrolysates. Appl Biochem Biotechnol 121–124:911–922CrossRefGoogle Scholar
  2. Amidon TE, Francis R, Scott GM, Bartholomew J, Ramarao BV, Wood CD (2007) Pulp and pulping processes from an integrated forest biorefinery. Appl. No. PCT/US2005/013216Google Scholar
  3. Anon XX (2007) LignoBoost does business with lignin fuel. Beyond 2:4–5Google Scholar
  4. Axegård P (1999) Kretsloppsanpassad massafabrik-Slutrapport, KAM 1 1996–1999, KAMrapport A31, Stiftelsen för Miljöstrategisk forskningGoogle Scholar
  5. Axegård P (2005) The future pulp mill – a biorefinery. In: First international biorefinery workshop, WashingtonGoogle Scholar
  6. Axegård P (2006a) Lignin removal from black liquor for increased energy efficiency and pulp capacity increase. In: Energy management for pulp and papermakers, Budapest, Hungary, 16–18 Oct 2006, Paper 12, 31ppGoogle Scholar
  7. Axegård P (2006b) Presentation “utilization of black liquor and forestry residues in a pulp mill biorefinery” at the forest based sector technology platform conference, Lahti, Finland, 22–23 Nov 2006Google Scholar
  8. Axegård P (2007a) Lignin from black liquor: a valuable fuel and chemical feedstock. In: Biorefining for the pulp and paper industry, Stockholm, Sweden, 10–11 Dec 2007, 34ppGoogle Scholar
  9. Axegård P (2007b) The kraft pulp mill as a biorefinery. In: Third ICEP international colloquium on eucalyptus pulp, Belo Horizonte, Brazil, 4–7 March 2007, 6ppGoogle Scholar
  10. Axegård P, Backlund B, Tomani P (2007) The pulp mill based biorefinery. In: Pulp paper 2007 conference. Biomass conversions, Helsinki, Finland, 5–7 June 2007, pp 19–26Google Scholar
  11. Bajpai P (2008) Chemical recovery in pulp and paper making. In: PIRA international, UK, 166ppGoogle Scholar
  12. Bozell JJ, Black SK, Myers M (1995) Clean fractionation of lignocellulosics – a new process for preparation of alternative feedstocks for the chemical industry. In: 8th international symposium on wood and pulping chemistry, Helsinki, Finland, pp 697–704Google Scholar
  13. Brandberg T, Franzén CJ, Gustafsson L (2004) The fermentation performance of nine strains of Saccharomyces cerevisiae in batch and fed-batch cultures in dilute acid wood hydrolysate. J Biosci Bioeng 98(2):122–125Google Scholar
  14. Brown C, Landälv I (2001) The Chemrec Black liquor recovery technology – a status report. In: International chemical recovery conference, Whistler, Canada, 11–14 June 2001Google Scholar
  15. Brown CA, Gorog JP, Leary R, Abdullah Z (2004) The Chemrec black liquor gasifier at New Bern – a status report. In: International chemical recovery conference, Charleston, 6–10 June 2004Google Scholar
  16. Chambost V, Stuart PR (2007) Selecting the most appropriate products for the forest biorefinery. Ind Biotechnol 3(2):112–119CrossRefGoogle Scholar
  17. Closset G (2004) Advancing the forest biorefinery. In: Presentation at forest products techno-business forum, Atlanta, GA, 26–27 Oct 2004Google Scholar
  18. Connor E (2007) The integrated forest biorefinery: the pathway to our bio-future. In: International chemical recovery conference: efficiency and energy management, Quebec City, QC, 29 May to 1 June 2007, pp 323–327Google Scholar
  19. Cunningham RL, Carr ME, Bagby MO (1986) Hemicellulose isolation of annual plants. In: Biotechnology bioengineering symposium, no. 17, 8th symposium biotechnology for fuels and chemicals, Gatlinburg, 13–16 May 1986, pp 159–168Google Scholar
  20. DeCarrera R (2006) Quarterly technical progress report 20 demonstration of black liquor gasification at Big Island. Report 40850R20 (06-04-28). Accessed on Dec. 2010
  21. Durai-Swamy K, Mansour MN, Warren DW (1991) Pulsed combustion process for black liquor gasification. U.S. DOE Report DOE/CE/40893-T1 (DE92003672)Google Scholar
  22. Ebringerova A, Hromadova Z, Kaucurakova M, Antal M (1994) Quaternized xylans: synthesis and structural characterization. Carbohyd Polym 24:301–308CrossRefGoogle Scholar
  23. Eckert CA, Bush D, Brown JS, Liotta CL (2000) Tuning solvents for sustainable technology. Ind Eng Chem Res 39(12):4615–4621CrossRefGoogle Scholar
  24. Eckert CA, Liotta CL, Bush D, Brown J, Hallett J (2004) Sustainable reactions in tunable solvents. J Phys Chem B 108:18108–18118CrossRefGoogle Scholar
  25. Farmer, MC (2005) The adaptable integrated biorefinery for existing pulp mills. In: Presentation at TAPPI engineering, pulping, and environmental conference, Philadelphia, PA, 28–31 Aug 2005Google Scholar
  26. Farmer M, Sinquefield S (2003) An external benefits study of black liquor gasification. Final report, Georgia Institute of Technology, 15 June 2003Google Scholar
  27. Fitzpatrick SW (1997) US Patent 5,608,105Google Scholar
  28. Frisell H (2008) Breakthrough for new Swedish environmental technology. Dagens Ind 33(69):26Google Scholar
  29. Gabrielii I, Gatenholm P, Glasser WG, Jain RK, Kenne L (2000) Separation, characterization and hydrogel-formation of hemicellulose from aspen wood. Carbohyd Polym 43:367–374CrossRefGoogle Scholar
  30. Grace TM, Timmer WM (1995) A comparison of alternative black liquor recovery technologies. In: Proceedings of the international chemical recovery conference, Toronto, pp B269–B275Google Scholar
  31. Griffith WL, Compere AL, Leitten CF, Shaffer JT (2003) Low-cost, lignin-based carbon fiber for transportation applications. In: International SAMPE technical conference, vol 35, pp 142–149Google Scholar
  32. Hashimoto T, Hashimoto K (1975) Studies on the utilization of xylan and glucomannan in woods. I. Purification and separation. Yakugaku Zasshi 95(10):1239–1244Google Scholar
  33. Heitz M, Carrasco F, Rubio M, Chauvette G, Chornet E, Julian L, Overend RP (1986) Generalised correlations for the aqueous liquefaction of lignocellulosics. Canad J Chem Eng 64:647–650CrossRefGoogle Scholar
  34. Horváth IS, Sjoede A, Alriksson B, Jönsson LJ, Nilvebrant NO (2005) Critical conditions for improved fermentability during overliming of acid hydrolysates from spruce. Appl Biochem Biotechnol 121–124:1031–1044CrossRefGoogle Scholar
  35. Jain RK, Sjostedt M, Glasser WG (2000) Thermoplastic xylan derivatives with propylene oxide. Cellulose 7(4):319–336CrossRefGoogle Scholar
  36. Kadla JF, Kubo S, Venditti RA, Gilbert RD, Compere AL, Griffith W (2002) Lignin-based carbon fibers for composite fiber applications. Carbon 40:2913–2920CrossRefGoogle Scholar
  37. Katofsky R, Consonni S, Larson ED (2003) A cost-benefit analysis of black liquor gasification combined cycle systems. In: Proceedings of the TAPPI fall technical conference: engineering, pulping & PCE&I, Chicago, p 22Google Scholar
  38. Kignell JE (1989) Process for chemicals and energy recovery from waste liquors. US Patent 4,808,264Google Scholar
  39. Kim KH (2005) Two-stage dilute acid-catalyzed hydrolytic conversion of softwood sawdust into sugars fermentable by ethanologenic microorganisms. J Sci Food Agric 85(14):2461–2467CrossRefGoogle Scholar
  40. Klinke HB, Thomsen AB, Ahring BK (2004) Inhibition of ethanol-producing yeast and bacteria by degradation products produced during pre-treatment of biomass. Appl Microbiol Biotechnol 66(1):10–26CrossRefGoogle Scholar
  41. Kubikova J, Zemann A, Krkoska P, Bobleter O (1996) Hydrothermal pretreatment of wheat straw for the production of pulp and paper. Tappi J 79:163–169Google Scholar
  42. Kuyper M, Hartog MMP, Toirkens MJ, Almering MJH, Winkler AA, van Dijken JP, Pronk JT (2005a) Metabolic engineering of a xylose-isomerase-expressing Saccharomyces cerevisiae strain for rapid anaerobic xylose fermentation. FEMS Yeast Res 5(4–5):399–409CrossRefGoogle Scholar
  43. Kuyper M, Toirkens MJ, Diderich JA, Winkler AA, van Dijken JP, Pronk JT (2005b) Evolutionary engineering of mixed-sugar utilization by a xylose-fermenting Saccharomyces cerevisiae strain. FEMS Yeast Res 5(10):925–934CrossRefGoogle Scholar
  44. Larsen E, Kreutz T, Consonni S (1998) Performance and preliminary economics of black liquor gasification combined cycles for a range of Kraft pulp mill sizes. In: International chemical recovery conference, Tampa, FL, 1–4 June 1998, vol 2, pp 675–692Google Scholar
  45. Larsen E, Consonni S, Katofsky R (2003) A cost-benefit assessment of biomass gasification power generation in the pulp and paper industry. Final report, Princeton Environmental Institute, 8 Oct 2003Google Scholar
  46. Larson GW, McDonald ED, Yang W, Frederick WJ, Iisa K, Kreutz TG, Malcolm EW, Brown CA (2000) A cost-benefit assessment of BLGCC technology. Tappi J 83(6):1–15Google Scholar
  47. Larsson S, Palmqvist E, Hahn-Hägerdal B, Tengborg C, Stenberg K, Zacchi G, Nilvebrant NO (1999) The generation of fermentation inhibitors during dilute acid hydrolysis of softwood. Enzyme Microbiol Technol 24(3/4):151–159CrossRefGoogle Scholar
  48. Lazzaroni MJ, Bush D, Brown JS, Eckert CA (2005) High pressure vapor and liquid equilibria of some carbon dioxide and organic binary systems. J Chem Eng Data 50(1):60–65CrossRefGoogle Scholar
  49. Lennholm B (2007) Lignin from the pulp mills’ black liquor: new biofuel with promising potential, Nord. Papperstidn. no. 6, June, p 16Google Scholar
  50. Lesutis HP, Gläser R, Griffith K, Liotta CL, Eckert CA (2001) Near critical water: a benign medium for catalytic reactions. Ind Eng Chem Res 40:6063–6067CrossRefGoogle Scholar
  51. Li X, Simonsen J, Li K (2004) Wood dissolution and the regeneration of its components using ionic liquids. In: 227th American chemical society national meeting abstracts, Anaheim, CAGoogle Scholar
  52. Lindblom M (2003) An overview of Chemrec process concepts. In: 6th international colloquium on black liquor combustion and gasification, Park City, Utah, 13–16 May 2003Google Scholar
  53. Lindblom M (2006) Chemrec pressurized black liquor gasification – status and future plans. In: 7th international colloquium on black liquor combustion and gasification, Jyväskylä, Finland, 31 July to 2 Aug 2006Google Scholar
  54. Lora JH, Wayman M (1978) Delignification of hardwoods by autohydrolysis and extraction. Tappi J 61:47–50Google Scholar
  55. Lu J, Lazzaroni MJ, Hallett JP, Bommarius AS, Liotta CL, Eckert CA (2004) Tunable solvents for homogeneous catalyst recycle. Ind Eng Chem Res 43(7):1586–1590CrossRefGoogle Scholar
  56. Lundqvist J, Jacobs A, Palm M, Zacchi G, Dahlman O, Stålbrand H (2002) Characterization of galactoglucomannan extracted from spruce (picea abies) by heat-fractionation at different conditions. Carbohyd Polym 51(2):203–211CrossRefGoogle Scholar
  57. Mabee WE, Gregg DJ, Saddler JN (2005) Assessing the emerging biorefinery sector in Canada. Appl Biochem Biotechnol 121–124:765–777CrossRefGoogle Scholar
  58. Mansour MN, Steedman WG, Durai-Swamy K, Kazares RE, Raman TV (1992) Chemical and energy recovery from black liquor by steam reforming. In: International chemical recovery conference, Seattle, WA, 7–11 June 1992Google Scholar
  59. Mansour MN, Durai-Swamy K, Aghamohammadi B (1993) Pulsed combustion process for black liquor gasification. Second Annual Report U.S. DOE Report DOE/CE/40893-T2 (DE94002668)Google Scholar
  60. Mansour MN, Durai-Swamy K, Warren DW (1997) Endothermic spent liquor recovery process. US Patent 5,637,192Google Scholar
  61. Martin N, Anglani N, Einstein D, Khrushch M, Worrell E, Price, LK (2000) Opportunities to improve energy efficiency and reduce greenhouse gas emissions in the U.S. pulp and paper industry. Report, Ernest O. Lawrence Berkeley National Laboratory, July 2000Google Scholar
  62. Mckeough P (2003) Evaluation of potential improvements to BLG technology. In: Colloquium of black liquor combustion and gasification, Park City, Utah, p 12Google Scholar
  63. Middleton T (2006) Steam reforming technology at the Norampac Trenton mil. In: Presentation at IEA meeting, Annex XV black liquor gasification, Washington, NC, 20–22 Feb 2006Google Scholar
  64. Millati R, Edebo L, Taherzadeh MJ (2005) Performance of Rhizopus, Rhizomucor, and Mucor in ethanol production from glucose, xylose, and wood hydrolyzates. Enzyme Microbiol Technol 36(2–3):294–300CrossRefGoogle Scholar
  65. Moens L, Khan N (2003) Application of room-temperature ionic liquids to the chemical processing of biomass-derived feedstocks. NATO Science Series, II. Math Phys Chem 92:157–171Google Scholar
  66. Molin U, Teder A (2002) Importance of cellulose/hemicellulose-ratio for pulp strength. Nord Pulp Pap Res 17(1):14–19, 28Google Scholar
  67. Montréal Workshop on Bio-refineries (2005) Capturing Canada’s natural advantage, Montréal, QC, 21 Nov 2005Google Scholar
  68. Neumann M (2008) New uses for lignin in the biorefinery of the future. Nord Papp Mass 1:42–43Google Scholar
  69. Newport DG, Rockvam L, Rowbotton R (2004) Black liquor steam reformer start-up at Norainpac. In: Proceedings of TAPPI international chemical recovery conference, South CarolinaGoogle Scholar
  70. Nguyen QA, Tucker MP, Keller FA, Eddy FP (2000) Two-stage dilute-acid pretreatment of softwoods. Appl Biochem Biotechnol 84–86:561–576CrossRefGoogle Scholar
  71. Nilsson LJ, Larson ED, Gilbreath KR, Gupta A (1995) Energy efficiency and the pulp and paper industry. ACEEE, WashingtonGoogle Scholar
  72. Niu W, Molefe MN, Frost JW (2003) Microbial synthesis of the energetic material precursor 1,2,4-butanetriol. J Am Chem Soc 125:12998CrossRefGoogle Scholar
  73. Nolen SA, Liotta CL, Eckert CA, Gläser R (2003) The catalytic opportunities of near-critical water: a benign medium for conventionally acid and base catalyzed organic synthesis. Green Chem 5:663–669CrossRefGoogle Scholar
  74. Öhman F (2006) Precipitation and separation of lignin from kraft black liquor. PhD thesis. Chalmers Technical University, Gothenburg, SwedenGoogle Scholar
  75. Page DH, Seth RS (1985) Strength and chemical composition of wood pulp fibres. In: The 8th fundamental research symposium, Oxford, UK, pp 77–91Google Scholar
  76. Palm M, Zacchi G (2003) Extraction of hemicellulosic oligosaccharides from spruce using microwave oven or steam treatment. Biomacromolecules 4(3):617–623CrossRefGoogle Scholar
  77. Palmqvist E, Hahn-Hägerdal B (2000) Fermentation of lignocellulosic hydrolysates. I: Inhibition and detoxification. Bioresour Technol 74(1):17–24CrossRefGoogle Scholar
  78. Persson P, Larsson S, Jönsson LJ, Nilvebrant NO, Sivik B, Munteanu F, Thörneby L, Gorton L (2002) Supercritical fluid extraction of a lignocellulosic hydrolysate of spruce for detoxification and to facilitate analysis of inhibitors. Biotechnol Bioeng 79(6):694–700CrossRefGoogle Scholar
  79. Ragauskas AJ, Nagy M, Kim DH, Eckert CA, Hallett JP, Liotta CL (2006) From wood to fuels: integrating biofuels and pulp production. Ind Biotechnol 2(1):55–65CrossRefGoogle Scholar
  80. Rockvam LN (2001) Black liquor steam reforming and recovery commercialization. In: International chemical recovery conference, Whistler, Canada, 11–14 June 2001Google Scholar
  81. Rodden G (2007) Lignoboost is proving its worth: Wermland paper is in the forefront of biofuel development thanks to an agreement with STFI-Packforsk. Pulp Pap Int 49(8):26–28Google Scholar
  82. Schönberg C, Oksanen T, Suurnäkki A, Kettunen H, Buchert J (2001) The importance of xylan for the strength properties of spruce kraft pulp fibres. Holzforschung 55(6):639–644CrossRefGoogle Scholar
  83. Scott RW (1989) Influence of cations and borate on the alkali extraction of xylan and glucomannan from pine pulps. J Appl Polym Sci 38(5):907–914CrossRefGoogle Scholar
  84. Senthilkumar V, Gunasekaran P (2005) Bioethanol production from cellulosic substrates: engineered bacteria and process integration challenges. J Sci Ind Res 64(11):845–853Google Scholar
  85. Sreenath HK, Jeffries TW (1999) Production of ethanol from wood hydrolyzate by yeasts. Bioresour Technol 72(3):253–260CrossRefGoogle Scholar
  86. Sricharoenchaikul V (2001) Fate of carbon-containing compounds from gasification of kraft black liquor with subsequent catalytic conditioning of condensable organics. PhD Dissertation, Georgia Institute of Technology, 2001Google Scholar
  87. Stigsson L (1998) Chemrec black liquor gasification. In: International chemical recovery conference, Tampa, FL, 1–4 June 1998Google Scholar
  88. Swatloski RP, Spear SK, Holbrey JD, Rogers RD (2002) Dissolution of cellulose with ionic liquids. J Am Chem Soc 124(18):4974–4975CrossRefGoogle Scholar
  89. Taherzadeh MJ, Eklund R, Gustafsson L, Niklasson C, Lidén G (1997) Characterization and fermentation of dilute-acid hydrolyzates from wood. Ind Eng Chem Res 36(11):4659–4665CrossRefGoogle Scholar
  90. Taherzadeh MJ, Gustafsson L, Niklasson C, Lidén G (2000a) Physiological effects of 5-hydroxymethylfurfural on Saccharomyces cerevisiae. Appl Microbiol Biotechnol 53(6):701–708CrossRefGoogle Scholar
  91. Taherzadeh MJ, Gustafsson L, Niklasson C, Lidén G (2000b) Inhibition effects of furfural on aerobic batch cultivation of Saccharomyces cerevisiae growing on ethanol and/or acetic acid. J Biosci Bioeng 90(4):374–380Google Scholar
  92. Tampier M, Smith D, Bibeau E, Beauchemin PA (2004) Identifying environmentally preferable uses for biomass resources – stage 1 report: identification of feedstock-to-product threads. Report, Envirochem Services Inc., North VancouverGoogle Scholar
  93. Thorp B (2005a) Transition of mills to biorefinery model creates new profit streams. Pulp Paper 79(11):35–39Google Scholar
  94. Thorp B (2005b) Biorefinery offers industry leaders business model for major change. Pulp Pap 79(11):35–39Google Scholar
  95. Thorp B, Raymond D (2005) Forest biorefinery could open door to bright future for P&P industry. PaperAge 120(7):16–18Google Scholar
  96. Thorp BA, Thorp BA, Murdock-Thorp LD (2008) A compelling case for integrated biorefineries. Accessed on Dec. 2010
  97. Tolan JS (2003) Conversion of cellulosic biomass to ethanol using enzymatic hydrolysis. In: 226th American chemical society national meeting abstracts, New YorkGoogle Scholar
  98. Tucker P (2002) Changing the balance of power. Solutions 85(2):34–38Google Scholar
  99. Vakkilainen EK, Kankkonen S, Suutela J (2008) Advanced efficiency options: increasing electricity generating potential from pulp mills. Pulp Pap Canada 109(4):14–18Google Scholar
  100. van Heiningen A (2006) Converting a kraft pulp mill into an integrated biorefinery. Pulp Pap Canada 107(6):T141–T146Google Scholar
  101. Wai CM, Gopalan AS, Jacobs HK (2003) An introduction to separations and processes using supercritical carbon dioxide. In: ACS symposium series, 860 (supercritical carbon dioxide), American Chemical Society, pp 2–8Google Scholar
  102. Wallmo H, Theliander H (2007) The Lignoboost process: comments on key-operations. In: International chemical recovery conference: efficiency and energy management, Quebec City, QC, 29 May to 1 June, pp 333–335Google Scholar
  103. Warnqvist B, Delin L, Theliander H, Nohlgren I (2000) Teknisk ekonomisk utvärdering avsvartlutförgasningsprocesser. Värmeforsk service AB, StockholmGoogle Scholar
  104. Werpy T, Petersen G (2004) Top value-added chemicals from biomass, volume I: results of screening for potential candidates from sugars and synthesis gas. Pacific NorthProduct west National Laboratory, Aug 2004
  105. Whitty K, Baxter L (2001) State of the art in black liquor gasification technology. In: Joint international combustion symposium, Kauai, Hawaii, 9–12 Sep 2001Google Scholar
  106. Whitty K, Nilsson A (2001) Experience from a high temperature, pressurized black liquor gasification pilot plant. In: International chemical recovery conference, Whistler, Canada, 11–14 June 2001Google Scholar
  107. Whitty K, Verrill CL (2004) A historical look at the development of alternative black liquor recovery technologies and the evolution of black liquor gasifier designs. In: International chemical recovery conference, Charleston, SC, 6–10 June 2004Google Scholar
  108. Wising U, Stuart PR (2006) Identifying the Canadian forest biorefinery. Pulp Pap Canada 107(6):25–30Google Scholar
  109. Wright JD, Power AJ (1987) Comparative technical evaluation of acid hydrolysis processes for conversion of cellulose to alcohol. Energy Biomass Wastes 10:949–971Google Scholar
  110. Wyatt VT, Bush D, Lu J, Hallett JP, Liotta CL, Eckert CA (2005) Determination of solvatochromic solubility parameters for the characterization of gas-expanded liquids. J Supercrit Fluids 36(1):16–22CrossRefGoogle Scholar
  111. Wyman CE, Goodman BJ (1993) Biotechnology for production of fuels, chemicals, and materials from biomass. Appl Biochem Biotechnol 39–40:41–59CrossRefGoogle Scholar
  112. Yanagisawa M, Shibata I, Isogai A (2005) SEC-MALLS analysis of softwood kraft pulp using LiCl/1,3-dimethyl-2-imidazolidinone as an eluent. Cellulose 12(2):151–158CrossRefGoogle Scholar
  113. Yang CQ, Lu Y (2000) Text Res J 70(4):359–362Google Scholar
  114. Zaldivar J, Nielsen J, Olsson L (2001) Fuel ethanol production from lignocellulose: a challenge for metabolic engineering and process integration. Appl Microbiol Biotechnol 56(1–2):17–34CrossRefGoogle Scholar

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© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Thapar Research and Development Center ColonyPatialaIndia

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