Zpracování pevného usňového odpadu enzymovým rozkladem

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F06%3A63504589" target="_blank" >RIV/70883521:28110/06:63504589 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Treatment of solid leather waste by enzymatic degradation

Popis výsledku v původním jazyce

Our work investigates the treatment of cut-off leather waste by means of an enzyme. Cut-offs was withdrawn from shoe plants in The Czech Republic and were cutted and milled using cutting A 3-step treatment of milled cut-offs was applied in: 1. Pre-treatment of milled cut-offs in an alkali environment created by KOH and MgO 2. After adjustmet the pH of the mixture to the value of 9.0 commercial enzyme Alcalase was added and under defined conditions enzyme hydrolysis was carried out. 3. pH of the mixturewas adjusted to a defined valueand 3. step of treatment in slightly acid environment followed. Finally, the reaction mixture was filtered out. Water soluble protein hydrolysate and insoluble residue (chrome cake) were subjected to the analysis for totalsolids, total Kjeldahl nitrogen, inorganic solids and chromium. It was found out that under optimal conditions of enzymatic hydrolysis of leather cut-offs it is possible to achieve 73% hydrolysis of protein (expressed as amount of nitroge

Název v anglickém jazyce

Treatment of solid leather waste by enzymatic degradation

Popis výsledku anglicky

Our work investigates the treatment of cut-off leather waste by means of an enzyme. Cut-offs was withdrawn from shoe plants in The Czech Republic and were cutted and milled using cutting A 3-step treatment of milled cut-offs was applied in: 1. Pre-treatment of milled cut-offs in an alkali environment created by KOH and MgO 2. After adjustmet the pH of the mixture to the value of 9.0 commercial enzyme Alcalase was added and under defined conditions enzyme hydrolysis was carried out. 3. pH of the mixturewas adjusted to a defined valueand 3. step of treatment in slightly acid environment followed. Finally, the reaction mixture was filtered out. Water soluble protein hydrolysate and insoluble residue (chrome cake) were subjected to the analysis for totalsolids, total Kjeldahl nitrogen, inorganic solids and chromium. It was found out that under optimal conditions of enzymatic hydrolysis of leather cut-offs it is possible to achieve 73% hydrolysis of protein (expressed as amount of nitroge

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

CHISA 2006 - Summaries 4 (System Engineering, 4)

ISBN

80-86059-45-6

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

1311-1312

Název nakladatele

Process Engineering Publisher

Místo vydání

Praha

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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