About: Processing poultry feathers into keratin hydrolysate through alkaline-enzymatic hydrolysis

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Poultry feathers make up for as much as 8.5% of chicken weight and represent a considerable amount of almost pure keratin waste which is not being adequately utilized at the present time. The present study dealt with the processing of poultry feathers through a two-stage alkaline-enzymatic hydrolysis. In the first stage, feathers were mixed with a 0.1 or 0.3% KOH water solution in a 1 : 50 ratio and were incubated at 70°C for 24 h. After adjusting pH to 9, the effects examined in the second processing stage on the amount of degraded feathers were those of proteolytic enzyme additions (1-5%), time (4-8 h) and temperature (50-70°C). Processing feathers in 0.3% KOH and hydrolysing for 8 h in the second stage at 70°C with a 5% dose of enzyme (relative to dry feathers weight) produced approx. 91% degradation.Keratin hydrolysate is distinct for its high nitrogen content and reasonable inorganic solids level. Poultry feathers make up for as much as 8.5% of chicken weight and represent a considerable amount of almost pure keratin waste which is not being adequately utilized at the present time. The present study dealt with the processing of poultry feathers through a two-stage alkaline-enzymatic hydrolysis. In the first stage, feathers were mixed with a 0.1 or 0.3% KOH water solution in a 1 : 50 ratio and were incubated at 70°C for 24 h. After adjusting pH to 9, the effects examined in the second processing stage on the amount of degraded feathers were those of proteolytic enzyme additions (1-5%), time (4-8 h) and temperature (50-70°C). Processing feathers in 0.3% KOH and hydrolysing for 8 h in the second stage at 70°C with a 5% dose of enzyme (relative to dry feathers weight) produced approx. 91% degradation.Keratin hydrolysate is distinct for its high nitrogen content and reasonable inorganic solids level. (en)
Title	Processing poultry feathers into keratin hydrolysate through alkaline-enzymatic hydrolysis Processing poultry feathers into keratin hydrolysate through alkaline-enzymatic hydrolysis (en)
skos:prefLabel	Processing poultry feathers into keratin hydrolysate through alkaline-enzymatic hydrolysis Processing poultry feathers into keratin hydrolysate through alkaline-enzymatic hydrolysis (en)
skos:notation	RIV/70883521:28110/11:43865345!RIV12-MSM-28110___
http://linked.open...avai/predkladatel	Fakulta technologická
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM7088352102)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Mokrejš, Pavel Svoboda, Petr Hrnčiřík, Josef
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Tomáše Bati ve Zlíně / Fakulta technologická
http://linked.open...dnocenehoVysledku	224173
http://linked.open...ai/riv/idVysledku	RIV/70883521:28110/11:43865345
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Alkali-enzyme hydrolysis\|\|chicken feathers\|\|keratin\|\|keratin hydrolysate\|\|waste (en)
http://linked.open.../riv/klicoveSlovo	Alkali-enzyme hydrolysis\|\|chicken feathers\|\|keratin\|\|keratin hydrolysate\|\|waste
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[C8541FFE7960]
http://linked.open...i/riv/nazevZdroje	Waste Management and Research
http://linked.open...in/vavai/riv/obor	EI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	29
http://linked.open...iv/tvurceVysledku	Janáčová, Dagmar Mokrejš, Pavel Svoboda, Petr Vašek, Vladimír Hrnčiřík, Josef
http://linked.open...ain/vavai/riv/wos	000287917900004
http://linked.open...n/vavai/riv/zamer	Modeling and Control of Processing Procedures of Natural and Synthetic Polymers
issn	0734-242X
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1177/0734242X10370378
http://localhost/t...ganizacniJednotka	28110
is http://linked.open...avai/riv/vysledek of	Processing poultry feathers into keratin hydrolysate through alkaline-enzymatic hydrolysis Processing poultry feathers into keratin hydrolysate through alkaline-enzymatic hydrolysis

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