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20250224101207.0 |
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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2018.1551430
|2 doi
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|a pubmed25n0969.xml
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|a (DE-627)NLM290971039
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|a (NLM)30465628
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Scopel, Bianca Santinon
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Steam Explosion in alkaline medium for gelatine extraction from chromium-tanned leather wastes
|b time reduction and process optimization
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.05.2020
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|a Date Revised 20.05.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Alkaline hydrolysis of chromium-tanned leather wastes (CTLW) is a well-known process that allows the extraction of its most valuable portion: the protein. However, alkaline hydrolysis is time-consuming. It usually takes from 2 to 10 h to be completed. In this work, alkaline hydrolysis was performed in a steam explosion reactor, using CaO as the alkalinizing agent and aiming at a short-time process. Three different temperatures and residence times were tested: 130, 140, and 150°C; 5, 10, and 15 min. When performed at 140°C for 10 min, the steam explosion in alkaline medium resulted in the optimum combination of protein extraction yield (30%) and gelatine quality (viscosity of 2.4 cP at 25°C in a 24.6 g/L protein solution - 39 kDa of molecular mass [Formula: see text]w). Not only a high extraction yield was achieved, but when compared to traditional methods, steam explosion in alkaline medium reduced the process time by a factor that varied from 12 to 36 times. It also reduced chromium content in the gelatine by a factor that varied from 16 to 96 times. Finally, to produce a high quality product, the ash content of the gelatine was reduced from 11.8% (dry basis) to 1.2% (dry basis) through diafiltration. This purification allows the application of the gelatine, for example, in the production of polymeric films
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|a Journal Article
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|a Steam explosion
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4 |
|a extraction yield
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| 650 |
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4 |
|a gelatine
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| 650 |
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|a leather waste
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| 650 |
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4 |
|a processing time reduction
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| 650 |
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|a Steam
|2 NLM
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| 650 |
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|a Chromium
|2 NLM
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| 650 |
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7 |
|a 0R0008Q3JB
|2 NLM
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| 650 |
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7 |
|a Gelatin
|2 NLM
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| 650 |
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7 |
|a 9000-70-8
|2 NLM
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| 700 |
1 |
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|a Restelatto, Danielle
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Baldasso, Camila
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dettmer, Aline
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Campomanes Santana, Ruth Marlene
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Environmental technology
|d 1993
|g 41(2020), 14 vom: 12. Juni, Seite 1857-1866
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
1 |
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|g volume:41
|g year:2020
|g number:14
|g day:12
|g month:06
|g pages:1857-1866
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|u http://dx.doi.org/10.1080/09593330.2018.1551430
|3 Volltext
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|d 41
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|h 1857-1866
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