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241204s2025 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2024.11.035
|2 doi
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|a pubmed25n1269.xml
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|a (DE-627)NLM381016013
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|a (NLM)39615289
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|a (PII)S0956-053X(24)00601-9
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Sun, Jiachen
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Revisiting alkali pretreatment to transform lignocellulose fermentation with integration of bioprocessible lignin
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|c 2025
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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 08.12.2024
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|a Date Revised 08.12.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Ltd. All rights reserved.
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|a This study emphasized the synergistic production of bioprocessible lignin and carbohydrates during a sequential liquid hot water and alkali pretreatment of lignocellulose, facilitating their subsequent individual fermentation. Increasing the dose of alkaline lignin from 0 to 8 g/L inhibited cell growth in anaerobic digestion, with varying levels of inhibition observed in the following order: hydrolytic bacteria < acidogens < acetogens. Alkali pretreatment was adapted to maximize yields of bioprocessible lignin liquor without compromising utilization of the carbohydrates. Increasing the NaOH dose from 50 to 200 mg/g-feedstock monotonically improved lignin yields, but further increases in alkali loading led to a decline in lignin recovery. Volatile fatty acids production from anaerobic digestion of the carbohydrate moiety consistently increased with higher NaOH doses. The optimal conditions for maximizing lignin yields were determined to be 105 °C for 30 min, with NaOH loading in the range of 150-200 mg/g-feedstock, resulting in approximately 80 % lignin recovery, of which 35 % was biologically utilizable. Liquid hot water treatment prior to alkali pretreatment was confirmed as necessary to preserve carbohydrates of 0.1 g/g-feedstock at a low temperature of 70 °C. These findings are crucial for economically producing bioprocessible lignin without carbohydrate loss, a key step towards achieving full lignocellulose valorization
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|a Journal Article
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|a Anaerobic digestion
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|a Lignin inhibition
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|a Lignin valorization
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|a Liquid hot water pretreatment
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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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| 650 |
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|a lignocellulose
|2 NLM
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|a 11132-73-3
|2 NLM
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| 650 |
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|a Sodium Hydroxide
|2 NLM
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| 650 |
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|a 55X04QC32I
|2 NLM
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| 650 |
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|a Alkalies
|2 NLM
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| 650 |
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|a Fatty Acids, Volatile
|2 NLM
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| 700 |
1 |
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|a Zhang, Le
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Loh, Kai-Chee
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 192(2025) vom: 15. Jan., Seite 82-90
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
1 |
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|g volume:192
|g year:2025
|g day:15
|g month:01
|g pages:82-90
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|u http://dx.doi.org/10.1016/j.wasman.2024.11.035
|3 Volltext
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