Formulation of an optimized synergistic enzyme cocktail, HoloMix, for effective degradation of various pre-treated hardwoods

Agrawal, 2015, RSC Advances Improved sacchari fi cation of pilot-scale acid pretreated wheat straw by exploiting the synergistic behavior of lignocellulose degrading enzymes, RSC Adv., 5, 71462, 10.1039/C5RA13360B Ahlgren, 1971, Removal of wood components during chlorite delignification of black spruce, Can. J. Chem., 49, 1272, 10.1139/v71-207 Alvira, 2010, Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: a review, Bioresour. Technol., 101, 4851, 10.1016/j.biortech.2009.11.093 Balan, 2009, Enzymatic digestibility and pretreatment degradation products of AFEX-treated hardwoods (populus nigra), Biotechnol. Prog., 25, 365, 10.1002/btpr.160 Banerjee, 2010, Rapid optimization of enzyme mixtures for deconstruction of diverse pretreatment/biomass feedstock combinations, Biotechnol. Biofuels, 3, 22, 10.1186/1754-6834-3-22 Baumann, 2011, Xylan oligosaccharides and cellobiohydrolase I (TrCel7A) interaction and effect on activity, Biotechnol. Biofuels, 4, 45, 10.1186/1754-6834-4-45 Berlin, 2006, Inhibition of cellulase, xylanase and beta-glucosidase activities by softwood lignin preparations, J. Biotechnol., 125, 198, 10.1016/j.jbiotec.2006.02.021 Beukes, 2011, Effect of alkaline pre-treatment on enzyme synergy for efficient hemicellulose hydrolysis in sugarcane bagasse, Bioresour. Technol., 102, 5207, 10.1016/j.biortech.2011.01.090 Brachet, 2015, Hydration capacity: A new criterion for feed formulation, Anim. Feed Sci. Technol., 209, 174, 10.1016/j.anifeedsci.2015.07.014 Bura, 2009, Influence of xylan on the enzymatic hydrolysis of steam-pretreated corn stover and hybrid poplar, Biotechnol. Prog., 25, 315, 10.1002/btpr.98 Chen, 2017, A review on the pretreatment of lignocellulose for high-value chemicals, Fuel Process. Technol., 160, 196, 10.1016/j.fuproc.2016.12.007 Chen, 2012, Effects of laccase on lignin depolymerization and enzymatic hydrolysis of ensiled corn stover, Bioresour. Technol., 117, 186, 10.1016/j.biortech.2012.04.085 Déjardin, 2010, Wood formation in Angiosperms, Comptes Rendus – Biol., 333, 325, 10.1016/j.crvi.2010.01.010 Halimahton, 1990, Steam explosion treatment of two Malaysian hardwoods, J. Trop. For. Sci., 2, 235 Hendriks, 2009, Pretreatments to enhance the digestibility of lignocellulosic biomass, Bioresour. Technol., 100, 10, 10.1016/j.biortech.2008.05.027 Hu, 2013, The synergistic action of accessory enzymes enhances the hydrolytic potential of a “cellulase mixture” but is highly substrate specific, Biotechnol. Biofuels, 6, 112, 10.1186/1754-6834-6-112 Hu, 2011, The enhancement of enzymatic hydrolysis of lignocellulosic substrates by the addition of accessory enzymes such as xylanase: is it an additive or synergistic effect?, Biotechnol. Biofuels, 4, 36, 10.1186/1754-6834-4-36 Hu, 2015, Bioresource Technology The addition of accessory enzymes enhances the hydrolytic performance of cellulase enzymes at high solid loadings, Bioresour. Technol., 186, 149, 10.1016/j.biortech.2015.03.055 Jeffries, 1990, Biodegradation of lignin-carbohydrate complexes, Biodegradation, 1, 163, 10.1007/BF00058834 Jungnikl, 2008, The implication of chemical extraction treatments on the cell wall nanostructure of softwood, Cellulose, 15, 407, 10.1007/s10570-007-9181-5 Karimi, 2015, A critical review on analysis in pretreatment of lignocelluloses: degree of polymerization, adsorption / desorption, and accessibility, Bioresour. Technol., 203, 348, 10.1016/j.biortech.2015.12.035 Ko, 2012, Potentials of lignocellulosic bioethanols produced from hardwood in Taiwan, Energy, 44, 329, 10.1016/j.energy.2012.06.026 Kumar, 2013, Comparison of laboratory delignification methods, their selectivity, and impacts on physiochemical characteristics of cellulosic biomass, Bioresour. Technol., 130, 372, 10.1016/j.biortech.2012.12.028 Kumar, 2014, Strong cellulase inhibition by Mannan polysaccharides in cellulose conversion to sugars, Biotechnol. Bioeng., 111, 1341, 10.1002/bit.25218 Kumar, 2009, Effect of xylanase supplementation of cellulase on digestion of corn stover solids prepared by leading pretreatment technologies, Bioresour. Technol., 100, 4203, 10.1016/j.biortech.2008.11.057 Kumar, 2009, Effects of cellulase and xylanase enzymes on the deconstruction of solids from pretreatment of poplar by leading technologies, Biotechnol. Prog., 25, 302, 10.1002/btpr.102 Leskinen, 2017, E-beam irradiation & steam explosion as biomass pretreatment, and the complex role of lignin in substrate recalcitrance, Biomass Bioenergy, 103, 21, 10.1016/j.biombioe.2017.05.008 Malgas, 2016, The inhibitory effects of various substrate pre-treatment by-products and wash liquors on mannanolytic enzymes, J. Mol. Catal. B Enzym., 123, 132, 10.1016/j.molcatb.2015.11.014 Malgas, 2015, β-Mannanase (Man26A) and α-galactosidase (Aga27A) synergism – a key factor for the hydrolysis of galactomannan substrates, Enzyme Microb. Technol., 70, 1, 10.1016/j.enzmictec.2014.12.007 Munoz, 2007, Bioethanol production from bio-organosolv pulps of Pinus radiata and Acacia dealbat, J. Chem. Technol. Biotechnol., 82, 767, 10.1002/jctb.1737 Noori, 2016, Detailed study of efficient ethanol production from elmwood by alkali pretreatment, Biochem. Eng. J., 105, 197, 10.1016/j.bej.2015.09.019 Parmar, 2012, Optimization of dilute acid-based pretreatment and application of laccase on apple pomace, Bioresour. Technol., 124, 433, 10.1016/j.biortech.2012.07.030 Qing, 2011, Hydrolysis of different chain length xylooliogmers by cellulase and hemicellulase, Bioresour. Technol., 102, 1359, 10.1016/j.biortech.2010.09.001 Qing, 2011, Supplementation with xylanase and β-xylosidase to reduce xylo-oligomer and xylan inhibition of enzymatic hydrolysis of cellulose and pretreated corn stover, Biotechnol. Biofuels, 4, 18, 10.1186/1754-6834-4-18 Qing, 2010, Xylooligomers are strong inhibitors of cellulose hydrolysis by enzymes, Bioresour. Technol., 101, 9624, 10.1016/j.biortech.2010.06.137 Rae, 2017, Biomass and Bioenergy Improved pretreatment of yellow poplar biomass using hot compressed water and enzymatically-generated peracetic acid, Biomass Bioenergy, 105, 190, 10.1016/j.biombioe.2017.07.004 Ramasamy, 2015, Water-holding capacity of soluble and insoluble polysaccharides in pressed potato fibre, Ind. Crops Prod., 64, 242, 10.1016/j.indcrop.2014.09.036 Rastogi, 2017, Recent advances in second generation bioethanol production: An insight to pretreatment, saccharification and fermentation processes, Renew. Sustain. Energy Rev., 80, 330, 10.1016/j.rser.2017.05.225 Shen, 2011, Evaluation of hemicellulose removal by xylanase and delignification on SHF and SSF for bioethanol production with steam-pretreated substrates, Bioresour. Technol., 102, 8945, 10.1016/j.biortech.2011.07.028 Siqueira, 2013, Enhancement of cellulose hydrolysis in sugarcane bagasse by the selective removal of lignin with sodium chlorite, Appl. Energy, 102, 399, 10.1016/j.apenergy.2012.07.029 Skyba, 2013, Syringyl-Rich lignin renders poplars more resistant to degradation by wood decay fungi, Appl. Environ. Microbiol., 79, 2560, 10.1128/AEM.03182-12 Sluiter, 2010, Compositional analysis of lignocellulosic feedstocks. 1. Review and description of methods, J. Agric. Food Chem., 58, 9043, 10.1021/jf1008023 Tabka, 2006, Enzymatic saccharification of wheat straw for bioethanol production by a combined cellulase xylanase and feruloyl esterase treatment, Enzyme Microb. Technol., 39, 897, 10.1016/j.enzmictec.2006.01.021 Takahashi, 1988, Ester linkages between lignin and glucuronoxylan in a lignin-carbohydrate complex from beech (Fagus crenata) wood, Wood Sci. Technol., 22, 231, 10.1007/BF00386018 Willför, 2005, Polysaccharides in some industrially important hardwood species, Wood Sci. Technol., 39, 601, 10.1007/s00226-005-0039-4 Yáñez, 2009, Processing of acacia dealbata in aqueous media: First step of a wood biorefinery, Ind. Eng. Chem. Res., 48, 6618, 10.1021/ie900233x Zhao, 2014, Thermal degradation of softwood lignin and hardwood lignin by TG-FTIR and Py-GC/MS, Polym. Degrad. Stab., 108, 133, 10.1016/j.polymdegradstab.2014.06.006