Zpracování tuhých usňových odpadů kožedělného průmyslu (Pokračování)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F07%3A63505267" target="_blank" >RIV/70883521:28110/07:63505267 - 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

Processing of solid leather by-products from shoe-making industry (To be continued)

Popis výsledku v původním jazyce

Chrome-tanned and finished leather clicking waste represents several hundreds thousand tons per year annually world-wide. The paper deals with the study on processing of leather wastes arising from leather (mainly shoe, garments, upholstery) industry. Solid leather waste was treated through enzymatic hydrolysis into two products: water-soluble collagen hydrolysate of low molecular mass (approx. 10,000 Da) and remained insoluble cake containing chromium and residual protein. A 3-stage enzymatic hydrolysis was applied and the efficiency of the process was monitored by the degree of leather waste hydrolysis expressed by nitrogen content in collagen hydrolysate. Under proposed optimal conditions the efficiency of hydrolysis can reach up to 73%. Collagen hydrolysate thus prepared contains, in addition, very low chromium content (not more than 100 ppm).

Název v anglickém jazyce

Processing of solid leather by-products from shoe-making industry (To be continued)

Popis výsledku anglicky

Chrome-tanned and finished leather clicking waste represents several hundreds thousand tons per year annually world-wide. The paper deals with the study on processing of leather wastes arising from leather (mainly shoe, garments, upholstery) industry. Solid leather waste was treated through enzymatic hydrolysis into two products: water-soluble collagen hydrolysate of low molecular mass (approx. 10,000 Da) and remained insoluble cake containing chromium and residual protein. A 3-stage enzymatic hydrolysis was applied and the efficiency of the process was monitored by the degree of leather waste hydrolysis expressed by nitrogen content in collagen hydrolysate. Under proposed optimal conditions the efficiency of hydrolysis can reach up to 73%. Collagen hydrolysate thus prepared contains, in addition, very low chromium content (not more than 100 ppm).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Leather Science and Engineering

ISSN

1004-7964

e-ISSN

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Svazek periodika

17

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

5

Strana od-do

3-7

Kód UT WoS článku

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EID výsledku v databázi Scopus

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