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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2021.06.008
|2 doi
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|a pubmed25n1090.xml
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|a eng
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|a Pan, Lanjia
|e verfasserin
|4 aut
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|a Biosynthesis of polyhydroxyalkanoate from food waste oil by Pseudomonas alcaligenes with simultaneous energy recovery from fermentation wastewater
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|c 2021
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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 11.08.2021
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|a Date Revised 07.12.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 Elsevier Ltd. All rights reserved.
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|a Bioconversion of food waste oil (FWO) into biodegradable plastic is a promising method for converting waste into high-value products. In this study, a strain (Pseudomonas sp. H3) was isolated for polyhydroxyalkanoate (PHA) synthesis from FWO. After 72 h of cultivation with 20 g/L of FWO, the high cell dry weight (CDW) of 3.6 g/L, PHA yield of 2.4 g/L, and PHA content of 65 wt% were obtained under the optimal temperature (25 °C) and inoculum amount (6% (v/v)). Fed-batch fermentation was conducted in a 5 L bioreactor with a maximum CDW of 16 g/L, PHA content of 54 wt%, and PHA productivity of 0.23 g/(L·h) after 36 h. The PHA had a molecular weight of 54 782 Da and a low polydispersity index of 1.41 with glass transition, melting, and degradation temperatures of -20 °C, 34 °C, and 210 °C, respectively. To further utilize the wastewater after PHA production, anaerobic digestion was employed for CH4 production, and the CH4 yield was 284 mL/g volatile solids. Microbial community analysis showed that the abundance of acetate-oxidizing bacteria and Methanobacterium significantly increased during anaerobic digestion. This study describes a new strain for the economical synthesis of biodegradable plastics and presents a novel framework for fully utilizing FWO with the production of PHA and CH4
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|a Journal Article
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|a Anaerobic fermentation
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|a Biodegradable plastic
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|a Food waste oil
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|a Pseudomonas alcaligenes
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|a Polyhydroxyalkanoates
|2 NLM
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|a Waste Water
|2 NLM
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|a Li, Jie
|e verfasserin
|4 aut
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|a Wang, Ruming
|e verfasserin
|4 aut
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|a Wang, Yu
|e verfasserin
|4 aut
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|a Lin, Qinghuai
|e verfasserin
|4 aut
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|a Li, Chunxing
|e verfasserin
|4 aut
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|a Wang, Yin
|e verfasserin
|4 aut
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 131(2021) vom: 15. Juli, Seite 268-276
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnas
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|g volume:131
|g year:2021
|g day:15
|g month:07
|g pages:268-276
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|u http://dx.doi.org/10.1016/j.wasman.2021.06.008
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