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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2018.01.012
|2 doi
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|a pubmed25n0935.xml
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|a (DE-627)NLM280581572
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|a (NLM)29398269
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|a (PII)S0956-053X(18)30012-6
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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 Kim, Yong Seon
|e verfasserin
|4 aut
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|a Dilute sulfuric acid fractionation of Korean food waste for ethanol and lactic acid production by yeast
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|c 2018
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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 13.08.2018
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|a Date Revised 02.12.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2018 Elsevier Ltd. All rights reserved.
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|a Fermentation of food waste biomass can be used to produce biochemicals such as lactic acid and ethanol in a cost-effective manner. Korean food waste (KFW) dewatered by a screw press contains 23.1% glucan on a dry basis and is a potential raw material for the production of ethanol and lactic acid through fermentation. This study was conducted to optimize the dilute acid fractionation conditions for KFW fermentation with respect to the H2SO4 concentration (0-0.8% w/v), temperature (130-190 °C), and residence time (1-128 min) using response surface methodology. Dilute sulfuric acid fractionation was carried out using a 30-mL stainless steel reactor under conditions, and then the dilute acid fractionation was scaled-up in 1-L and 7-L stainless steel reactors under the optimal conditions. The hydrolysate was concentrated, liquid-liquid extracted and neutralized for lactic acid and ethanol production. The highest concentration of glucose obtained from the KFW was 26.4 g/L using fractionation with 0.37% w/v H2SO4 at 156 °C for 123.6 min. Using recombinant Saccharomyces cerevisiae containing a codon-optimized lactate dehydrogenase, the yield of lactic acid and ethanol was 77% of the theoretical yield for 17.4 g/L of fermentable sugar at pH 5.5. Additionally, the yield of ethanol produced by Issatchenkia orientalis was 89% of the theoretical yield for 25 g/L of fermentable sugar at pH 3
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|a Journal Article
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|a Dilute sulfuric acid fractionation
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|a Ethanol
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|a Fermentation
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|a Korean food waste (KFW)
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|a Liquid–liquid extraction (LLE)
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|a Response surface methodology (RSM)
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|a Sulfuric Acids
|2 NLM
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|a Lactic Acid
|2 NLM
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| 650 |
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|a 33X04XA5AT
|2 NLM
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| 650 |
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|a Ethanol
|2 NLM
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| 650 |
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|a 3K9958V90M
|2 NLM
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| 700 |
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|a Jang, Ji Yeon
|e verfasserin
|4 aut
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|a Park, Seong Jik
|e verfasserin
|4 aut
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| 700 |
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|a Um, Byung Hwan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 74(2018) vom: 19. Apr., Seite 231-240
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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| 773 |
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|g volume:74
|g year:2018
|g day:19
|g month:04
|g pages:231-240
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|u http://dx.doi.org/10.1016/j.wasman.2018.01.012
|3 Volltext
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