通过电发酵从废弃活性污泥中可持续地生物合成己酸酯:产品谱系、经济和环境影响展望

IF 13.3 1区 工程技术 Q1 ENGINEERING, CHEMICAL Chemical Engineering Journal Pub Date : 2024-11-19 DOI:10.1016/j.cej.2024.157768
Dengfei Li, Shuanglan Cheng, Cristiano Varrone, Bing-Jie Ni, Jingyang Luo, Zhihong Liu, Zhangwei He, Wenzong Liu, Aijuan Zhou, Xiuping Yue
{"title":"通过电发酵从废弃活性污泥中可持续地生物合成己酸酯:产品谱系、经济和环境影响展望","authors":"Dengfei Li, Shuanglan Cheng, Cristiano Varrone, Bing-Jie Ni, Jingyang Luo, Zhihong Liu, Zhangwei He, Wenzong Liu, Aijuan Zhou, Xiuping Yue","doi":"10.1016/j.cej.2024.157768","DOIUrl":null,"url":null,"abstract":"Electro-fermentation (EF) has emerged as a promising method to produce value-added medium chain fatty acids (MCFAs) via chain elongation (CE). The biorefinery of waste activated sludge (WAS) to MCFAs has been attracting increasing attention. However, so far anaerobic_CE process was commonly employed, while the contribution and mechanism of EF_CE still remain unclear. In the present study, a comprehensive analysis of caproate biosynthesis from prefermented WAS via EF_CE was performed. The reduction in substrates resulted in an increase in caproate production, yielding the maximum caproate (299.8 mg COD/g volatile suspended solid) in the minimum substrate concentration (25 % prefermented WAS, EF13 group). The highest utilization rate (78.76 %) of soluble proteins was also achieved in EF13. Significant positive correlation among caproate yield, electrochemically active bacteria, caproate-synthesizing consortium and homo-acetogen was revealed by molecular ecological network and Mantel test. Further analysis of the metabolic pathways revealed that EF13 demonstrated more key enzymes participated in the production of acetyl-CoA via the Wood-Ljungdahl pathway and the conversation of acetyl-CoA to caproate via the reverse β-oxidation pathway. Moreover, compared to the anaerobic_CE process, the economic benefits of the EF_CE process significantly increased, and the environmental impacts were greatly reduced. The life cycle assessment and economic benefits analysis identified the strengths of EF_CE and proposed a sustainable strategy to facilitate the commercialization of electro-fermentation assisted biorefinery technology.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"63 1","pages":""},"PeriodicalIF":13.3000,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sustainable biosynthesis of caproate from waste activated sludge via electro-fermentation: Perspectives of product spectrum, economic and environmental impacts\",\"authors\":\"Dengfei Li, Shuanglan Cheng, Cristiano Varrone, Bing-Jie Ni, Jingyang Luo, Zhihong Liu, Zhangwei He, Wenzong Liu, Aijuan Zhou, Xiuping Yue\",\"doi\":\"10.1016/j.cej.2024.157768\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Electro-fermentation (EF) has emerged as a promising method to produce value-added medium chain fatty acids (MCFAs) via chain elongation (CE). The biorefinery of waste activated sludge (WAS) to MCFAs has been attracting increasing attention. However, so far anaerobic_CE process was commonly employed, while the contribution and mechanism of EF_CE still remain unclear. In the present study, a comprehensive analysis of caproate biosynthesis from prefermented WAS via EF_CE was performed. The reduction in substrates resulted in an increase in caproate production, yielding the maximum caproate (299.8 mg COD/g volatile suspended solid) in the minimum substrate concentration (25 % prefermented WAS, EF13 group). The highest utilization rate (78.76 %) of soluble proteins was also achieved in EF13. Significant positive correlation among caproate yield, electrochemically active bacteria, caproate-synthesizing consortium and homo-acetogen was revealed by molecular ecological network and Mantel test. Further analysis of the metabolic pathways revealed that EF13 demonstrated more key enzymes participated in the production of acetyl-CoA via the Wood-Ljungdahl pathway and the conversation of acetyl-CoA to caproate via the reverse β-oxidation pathway. Moreover, compared to the anaerobic_CE process, the economic benefits of the EF_CE process significantly increased, and the environmental impacts were greatly reduced. The life cycle assessment and economic benefits analysis identified the strengths of EF_CE and proposed a sustainable strategy to facilitate the commercialization of electro-fermentation assisted biorefinery technology.\",\"PeriodicalId\":270,\"journal\":{\"name\":\"Chemical Engineering Journal\",\"volume\":\"63 1\",\"pages\":\"\"},\"PeriodicalIF\":13.3000,\"publicationDate\":\"2024-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Engineering Journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1016/j.cej.2024.157768\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.cej.2024.157768","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

摘要

电发酵(EF)已成为通过链延伸(CE)生产高附加值中链脂肪酸(MCFAs)的一种有前途的方法。将废弃活性污泥(WAS)生物炼制成中链脂肪酸(MCFAs)已引起越来越多的关注。然而,迄今为止,人们普遍采用厌氧 CE 工艺,而 EFCE 的贡献和机理仍不清楚。本研究全面分析了预处理 WAS 通过 EF_CE 进行己酸酯生物合成的过程。底物的减少导致了己酸酯产量的增加,在底物浓度最低的情况下(25% 预处理 WAS,EF13 组),己酸酯产量最高(299.8 毫克 COD/克挥发性悬浮固体)。EF13 组的可溶性蛋白质利用率也最高(78.76%)。分子生态网络和曼特尔检验显示,己酸盐产量、电化学活性菌、己酸盐合成联合体和同源乙酸根之间存在显著的正相关。对代谢途径的进一步分析表明,EF13 表现出更多的关键酶参与了通过伍德-荣格达尔途径产生乙酰-CoA 和通过反向 β 氧化途径将乙酰-CoA 转化为己酸的过程。此外,与厌氧_CE 工艺相比,EF_CE 工艺的经济效益显著提高,对环境的影响大大降低。生命周期评估和经济效益分析确定了 EF_CE 的优势,并提出了促进电发酵辅助生物精炼技术商业化的可持续战略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Sustainable biosynthesis of caproate from waste activated sludge via electro-fermentation: Perspectives of product spectrum, economic and environmental impacts
Electro-fermentation (EF) has emerged as a promising method to produce value-added medium chain fatty acids (MCFAs) via chain elongation (CE). The biorefinery of waste activated sludge (WAS) to MCFAs has been attracting increasing attention. However, so far anaerobic_CE process was commonly employed, while the contribution and mechanism of EF_CE still remain unclear. In the present study, a comprehensive analysis of caproate biosynthesis from prefermented WAS via EF_CE was performed. The reduction in substrates resulted in an increase in caproate production, yielding the maximum caproate (299.8 mg COD/g volatile suspended solid) in the minimum substrate concentration (25 % prefermented WAS, EF13 group). The highest utilization rate (78.76 %) of soluble proteins was also achieved in EF13. Significant positive correlation among caproate yield, electrochemically active bacteria, caproate-synthesizing consortium and homo-acetogen was revealed by molecular ecological network and Mantel test. Further analysis of the metabolic pathways revealed that EF13 demonstrated more key enzymes participated in the production of acetyl-CoA via the Wood-Ljungdahl pathway and the conversation of acetyl-CoA to caproate via the reverse β-oxidation pathway. Moreover, compared to the anaerobic_CE process, the economic benefits of the EF_CE process significantly increased, and the environmental impacts were greatly reduced. The life cycle assessment and economic benefits analysis identified the strengths of EF_CE and proposed a sustainable strategy to facilitate the commercialization of electro-fermentation assisted biorefinery technology.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Chemical Engineering Journal
Chemical Engineering Journal 工程技术-工程:化工
CiteScore
21.70
自引率
9.30%
发文量
6781
审稿时长
2.4 months
期刊介绍: The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.
期刊最新文献
Corrigendum to “Engineering prodrug nanoparticles for targeted therapy in heterogeneous glioblastoma” [Chem. Eng. J. 474 (2023) 145557] Regulating interlayer charge transfer in MoS2 via in-situ loading of Pd-metallene to enhance piezo-catalytic degradation efficiency: Contributions of low free energy Compromise boosted high capacitive energy storage in lead-free (Bi0.5Na0.5)TiO3 −based relaxor ferroelectrics by phase structure modulation and defect engineering Wide-temperature zinc-iodine batteries enabling by a Zn-ion conducting covalent organic framework buffer layer Binding energy crossover mechanism enables low-temperature hydrogen storage performance of dual-phase TiZrCrMnNi(VFe) high-entropy alloy
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1