Feasibility of nanocrystalline cellulose production by endoglucanase treatment of natural bast fibers

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DOIResolve DOI: http://doi.org/10.1016/j.indcrop.2013.09.029
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TypeArticle
Journal titleIndustrial Crops and Products
ISSN0926-6690
Volume51
Pages381384; # of pages: 4
SubjectAggregated networks; Endoglucanase treatments; Endoglucanases; Fungal enzymes; Nanocrystalline cellulose; Nanocrystalline cellulose(NCC); Physical pre-treatment; Thermostable enzymes; Aspergillus; Atomic force microscopy; Cellulose derivatives; Cloning; Enzymes; Flax; Hemp fibers; Linen; Yarn; Fibers; assessment method; cellulose; crystallinity; enzyme activity; feasibility study; fungus; height; physicochemical property; temperature effect; Cellulose Derivatives; Endo Enzymes; Fibers; Flax; Glucanase; Linen; Yarn
AbstractWhereas straw management presents a continuing challenge among farmers, tremendous opportunities may exist within the natural fibers in terms of value- added products or chemicals. This research provides the first assessment and demonstration of feasibility of an enzyme-assisted production of nanocrystalline cellulose (NCC) from hemp and flax fibers. A newly cloned endoglucanase (AoEG), derived from Aspergillus oryzae and characterized to be a thermostable enzyme with a half-life of 50. h at 50. °C was used for the hydrolysis. Atomic force microscopy (AFM) imaging of NCC produced from acid swollen cellulose and flax fibers indicated that they form aggregated network, showing rod-like nanofibrils of about 10. nm in height, and 200. nm in length. The yield of NCC using physical pretreatment only or combined physical-chemical pretreatment was compared. The highest yield of NCC was obtained under the conditions of 300. mg of flax fiber treated by 100. IU enzyme at 50. °C for 24. h after pretreatment of the fibers by sonication-microwave in 2% NaOH solution.
Publication date
LanguageEnglish
AffiliationAquatic and Crop Resource Development; National Research Council Canada; Automotive and Surface Transportation
Peer reviewedYes
NRC number55846
NPARC number21269628
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Record identifier821487fd-0e92-4eb0-972e-8bdc630b4e12
Record created2013-12-13
Record modified2016-05-09
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