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Modeling technological conditions for breakdown of waste sheep wool

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dc.title Modeling technological conditions for breakdown of waste sheep wool en
dc.contributor.author Mokrejš, Pavel
dc.contributor.author Krejčí, Ondřej
dc.contributor.author Svoboda (FT), Petr
dc.contributor.author Vašek, Vladimír
dc.relation.ispartof Rasayan Journal of Chemistry
dc.identifier.issn 0974-1496 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2011
utb.relation.volume 4
utb.relation.issue 4
dc.citation.spage 728
dc.citation.epage 735
dc.type article
dc.language.iso en
dc.relation.uri http://rasayanjournal.com/928-Volume-4-Number-4-701-946-Oct.-Dec.2011/View-category.html
dc.subject Enzyme hydrolysis en
dc.subject Keratin hydrolysate en
dc.subject Organic waste en
dc.subject Sheep wool en
dc.subject Waste treatment en
dc.description.abstract The contribution deals with hydrolytic processing of sheep wool in two stages (alkaline pre-processing and enzymatic hydrolysis) into keratin hydrolysate. Employed proteolytic enzymes were Esperase 6.0 T and Everlase 6.0 T. Modeling technological conditions for breakdown proceeded applying the method of factor tests of 2 3 type, in which factors under study were additions of Ca(OH) 2 (3-9%, w/w), temperatures in first processing stage (40-80 °C) and temperatures in second processing stage (40-60 °C) influencing quantity of broken down wool (determined through gravimetric analysis). When using enzyme Esperase 6.0 T quantities of broken down wool were 8.4-59.2% wool; with enzyme Everlase 6.0 T 4.7-39.6% wool (depending on conditions of hydrolysis). Results were statistically processed and statistic significance of factors under study was analyzed. Results of sheep wool breakdown presented graphically in contour charts indicate the influence of two most significant factors with a selected level of third factor and show the possibility to model breakdown conditions in such manner that keratin hydrolysate of required properties is obtained. © 2011 RASĀYAN. All rights reserved. en
utb.faculty Faculty of Technology
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1002733
utb.identifier.rivid RIV/70883521:28110/11:43867133!RIV12-MSM-28110___
utb.identifier.rivid RIV/70883521:28140/11:43867133!RIV12-MSM-28140___
utb.identifier.obdid 43867379
utb.identifier.scopus 2-s2.0-84856138761
utb.source j-scopus
dc.date.accessioned 2012-02-29T13:04:48Z
dc.date.available 2012-02-29T13:04:48Z
utb.contributor.internalauthor Mokrejš, Pavel
utb.contributor.internalauthor Krejčí, Ondřej
utb.contributor.internalauthor Svoboda (FT), Petr
utb.contributor.internalauthor Vašek, Vladimír
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