Biotechnology in Textile Pre-treatment

Title Alternative:Biotechnology in Textile Pre-treatment
dc.contributor.advisorVik, Michal
dc.contributor.authorMfuywa, Siviwe Artwell
dc.date2011
dc.date.accessioned2015-06-30
dc.date.available2015-06-30
dc.date.committed2011-05-13
dc.date.defense2011-06-10
dc.date.issued2011
dc.date.submitted2010-10-01
dc.degree.levelmgr
dc.descriptionkatedra: KTC; přílohy: 1 CD; rozsah: 107cs
dc.description.abstractThe cellulases of the soft-rot fungus. Trichoderma reesei are the most studied and understood of all cellulolytic systems. Cellulases are used for modification of cellulosic fibres and fabrics, e.g. cotton, viscose and lyocell, yielding properties such as stonewashing, peach-skin and biofinishing effects. Cellulases are usually applied as multi-component enzyme systems and most of the commercial cellulases contain a variety of different activities. The cellulolytic system of T. reesei is composed of two cellobiohydrolases (CBHI and CBHII), at least six endoglucanases and two ?-glucosidases. Cellulases are known to act synergistically in the hydrolysis of crystalline cellulose. Endoglucanases randomly attack the amorphous regions in cellulosic substrates, whereas cellobiohydrolases can also act the crystalline regions of cellulose, releasing cellobiose from the ends of cellulose chain. In the present investigation, purified T. reesei cellulases CBHI, CBHII, EGI and EG II were used to treat different types of cotton fabrics in order to evaluate the effects of individual mono-component cellulases on cotton properties. By comparing the impact of mono-component cellulases on cotton twill and poplin woven fabrics and interlock knitted fabric; it became apparent that cellobiohydrolases and endoglucanases have different effects on the tested fabrics.en
dc.description.abstractThe cellulases of the soft-rot fungus. Trichoderma reesei are the most studied and understood of all cellulolytic systems. Cellulases are used for modification of cellulosic fibres and fabrics, e.g. cotton, viscose and lyocell, yielding properties such as stonewashing, peach-skin and biofinishing effects. Cellulases are usually applied as multi-component enzyme systems and most of the commercial cellulases contain a variety of different activities. The cellulolytic system of T. reesei is composed of two cellobiohydrolases (CBHI and CBHII), at least six endoglucanases and two ?-glucosidases. Cellulases are known to act synergistically in the hydrolysis of crystalline cellulose. Endoglucanases randomly attack the amorphous regions in cellulosic substrates, whereas cellobiohydrolases can also act the crystalline regions of cellulose, releasing cellobiose from the ends of cellulose chain. In the present investigation, purified T. reesei cellulases CBHI, CBHII, EGI and EG II were used to treat different types of cotton fabrics in order to evaluate the effects of individual mono-component cellulases on cotton properties. By comparing the impact of mono-component cellulases on cotton twill and poplin woven fabrics and interlock knitted fabric; it became apparent that cellobiohydrolases and endoglucanases have different effects on the tested fabrics.cs
dc.formattext
dc.identifier.urihttps://dspace.tul.cz/handle/15240/11252
dc.language.isoen
dc.publisherTechnická Univerzita v Libercics
dc.subjectenzymeen
dc.subjectbiotechnologyen
dc.subjectdesizingen
dc.subjectbleach clean upen
dc.subjectdenim abrasionen
dc.subjectbiopolishingen
dc.subjectenergy savingen
dc.subjectenzymecs
dc.subjectbiotechnologycs
dc.subjectdesizingcs
dc.subjectbleach clean upcs
dc.subjectdenim abrasioncs
dc.subjectbiopolishingcs
dc.subjectenergy savingcs
dc.subject.verbisbiotechnologyen
dc.titleBiotechnology in Textile Pre-treatmentcs
dc.title.alternativeBiotechnology in Textile Pre-treatmenten
dc.typeThesis
local.departmentKTCcs
local.facultyFakulta textilnícs
local.identifier.stag21218
local.identifier.verbis451996
local.note.administratorsoprava_A
local.verbis.aktualizace2019-10-05 06:13:12cs
local.verbis.studijniprogramKTC Textile engineering/Textile engineeringcs
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