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| Description
| - Práce se zabývá zpracováním usňových odřezků enzymovým způsobem. Odřezky byly odebrány z obuvnických závodů v ČSR a byly rozemlety. Rozklad byl proveden 3-stupňovým procesem: 1. V prvním stupni se odpad předzpracoval v alkalickém prostředí. V druhém stupni, po úpravě pH, se dávkovala komerční alkalása a byla provedena enzymová hydrolýsa za stanovených podmínek. V třetím stupni se pH reakční směsi upravilo do kyselé oblasti a dokončil se rozkladný proces. Směs byla následně zfiltrována, čímž se získal ve vodě rozpustný proteinový hydrolysát a zbylý nerozpuštěný podíl. U obou produktů byla provedena analýsa dusíku, sušiny, chrómu, popela. Zjistili jsme, že za optimálních podmínek je možné zhydrolysovat až 73% původního proteinu, což je dosattečná účinnost. (cs)
- 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 Cut-offs was withdrawn from shoe plants in The Czech Republic and were cutted and milled using cutting A 3-step treatment of milled cut-offs was applied in: 1.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 mixture was 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 total solids, 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 nitrogen).
- 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 Cut-offs was withdrawn from shoe plants in The Czech Republic and were cutted and milled using cutting A 3-step treatment of milled cut-offs was applied in: 1.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 mixture was 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 total solids, 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 nitrogen). (en)
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| Title
| - Treatment of solid leather waste by enzymatic degradation
- Treatment of solid leather waste by enzymatic degradation (en)
- Zpracování pevného usňového odpadu enzymovým rozkladem (cs)
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| skos:prefLabel
| - Treatment of solid leather waste by enzymatic degradation
- Treatment of solid leather waste by enzymatic degradation (en)
- Zpracování pevného usňového odpadu enzymovým rozkladem (cs)
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| skos:notation
| - RIV/70883521:28110/06:63504589!RIV07-MSM-28110___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/70883521:28110/06:63504589
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Chrome cut-offs; enzyme hydrolysis; protein hydrolysate (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - CHISA 2006 - Summaries 4 (System Engineering, 4)
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Janáčová, Dagmar
- Kolomazník, Karel
- Mokrejš, Pavel
- Langmaier, Ferdinand
- Mládek, Milan
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
| - Process Engineering Publisher
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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