Structural Changes in Hemp Fibers as a Result of Enzymatic Hydrolysis with Mixed Enzyme Systems
| Autor: | Fritz Loth, Gisela Buschle-Diller, Carola Fanter |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
010302 applied physics
chemistry.chemical_classification Materials science Polymers and Plastics biology 02 engineering and technology Cellulase 021001 nanoscience & nanotechnology 01 natural sciences Hydrolysis Crystallinity Enzyme Chemical engineering chemistry Enzyme system Enzymatic hydrolysis 0103 physical sciences Ultimate tensile strength biology.protein Chemical Engineering (miscellaneous) Organic chemistry 0210 nano-technology |
| Zdroj: | Textile Research Journal. 69:244-251 |
| ISSN: | 1746-7748 0040-5175 |
| DOI: | 10.1177/004051759906900403 |
| Popis: | Hemp fabric is hydrolyzed with cellulase, hemicellulase/cellulase, and cellulase plus additional β-glucosidase. The effect of the admixture of hemicellulase and β-glucosi dase is evaluated in terms of hydrolysis rate and product properties. The influence of mechanical action during the treatment is also taken into account. Treated samples are characterized by weight loss per incubation time, tensile strength, crystallinity, acces sibility, and pore structure. The admixture of hemicellulase and,β-glucosidase produces only minor effects without mechanical action on the hydrolysis rate, but mechanical action applied during the treatment dramatically increases weight loss. While crystal linity changes upon hydrolysis are insignificant, the pore structure is strongly influenced by the choice of enzyme system. Hemicellulase seems to promote the formation of smaller pores, while cellobiase forms larger pores. |
| Databáze: | OpenAIRE |
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