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Improved properties of micronized genetically modified flax fibers

Paper ID Volume ID Publish Year Pages File Format Full-Text
23309 43431 2013 8 PDF Available
Title
Improved properties of micronized genetically modified flax fibers
Abstract

The aim of this study was to investigate the effect of micronization on the compound content, crystalline structure and physicochemical properties of fiber from genetically modified (GM) flax. The GM flax was transformed with three bacterial (Ralstonia eutropha) genes coding for enzymes of polyhydroxybutyrate (PHB) synthesis and under the control of the vascular bundle promoter. The modification resulted in fibers containing the 3-hydroxybutyrate polymer bound to cellulose via hydrogen and ester bonds and antioxidant compounds (phenolic acids, vanillin, vitexin, etc.). The fibers appeared to have a significantly decreased particle size after 20 h of ball-milling treatment. Micronized fibers showed reduced phenolic contents and antioxidant capacity compared to the results for untreated fibers. An increased level of PHB was also detected. Micronization introduces structural changes in fiber constituents (cellulose, hemicellulose, pectin, lignin, PHB) and micronized fibers exhibit more functional groups (hydroxyl, carboxyl) derived from those constituents. It is thus concluded that micronization treatments improve the functional properties of the fiber components.

► Micronization process changed composition, crystalline structure and physicochemical properties of genetically modified fibers. ► We report that micronization improve functional properties of the fiber components. ► Highly reactive micronized fibers might serve as a carrier for biologically active compounds.

Keywords
Transgenic flax; PHB; Micronized fibers
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Improved properties of micronized genetically modified flax fibers
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 164, Issue 2, March 2013, Pages 292–299
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us