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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1177/0734242X211055547
|2 doi
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|a eng
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|a de Crane d'Heysselaer, Simon
|e verfasserin
|4 aut
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|a Potential for the valorisation of brewer's spent grains
|b A case study for the sequential extraction of saccharides and lignin
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|c 2022
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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
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|2 rdacarrier
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|a Date Completed 17.05.2022
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|a Date Revised 17.05.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a This study highlights the possibility of using brewers' grains (BSGs) for the successive extraction of the main lignocellulosic biopolymers, namely, cellulose, hemicelluloses and lignin. An exhaustive chemical characterisation revealed a variability of composition in distinct batches of BSGs, depending on their origin and the brewing process used. In particular, the protein content can vary from 13wt% to 23wt%, which is accompanied by a change in the hemicelluloses content from 9% to 23% (in the samples of our study). By applying a two-step aqueous treatment, involving an acid (1.25% v/v aq. H2SO4) and a base (3% w/v aq. NaOH) at a temperature of 120°C and fixed reaction time of a few tens of minutes (15-90 minutes), more than 80% of hemicelluloses could be recovered. Cellulose could be isolated at more than 68%, while a high purity lignin could be recovered from a lignin-rich fraction (70wt%). Our work also suggests that the variability of the chemical composition of these BSGs is a hindrance to achieving process standardisation and large-scale exploitation. The pooling of various materials is therefore not a recommended option, and the preliminary chemical analysis of the composition is therefore a prerequisite for an efficient extraction process
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|a Journal Article
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|a Brewer’s spent grains
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|a cellulose
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|a extraction
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|a lignin
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|a Cellulose
|2 NLM
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|a 9004-34-6
|2 NLM
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| 650 |
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|a Lignin
|2 NLM
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|a 9005-53-2
|2 NLM
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|a Bockstal, Lauris
|e verfasserin
|4 aut
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| 700 |
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|a Jacquet, Nicolas
|e verfasserin
|4 aut
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|a Schmetz, Quentin
|e verfasserin
|4 aut
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|a Richel, Aurore
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
|d 1991
|g 40(2022), 7 vom: 02. Juli, Seite 1007-1014
|w (DE-627)NLM098164791
|x 1096-3669
|7 nnas
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| 773 |
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|g volume:40
|g year:2022
|g number:7
|g day:02
|g month:07
|g pages:1007-1014
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|u http://dx.doi.org/10.1177/0734242X211055547
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