Bioresource Technology最新文献

Exploring the interaction between quorum sensing and sludge physical properties in Anammox systems

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-20 DOI: 10.1016/j.biortech.2025.132224

Yanjun Zhu , Dong Li , Sibo Fu , Hongpeng Li , Sen Yang , Songyue Li , Yuliang Zhu , Huiping Zeng , Jie Zhang

{"title":"Exploring the interaction between quorum sensing and sludge physical properties in Anammox systems","authors":"Yanjun Zhu , Dong Li , Sibo Fu , Hongpeng Li , Sen Yang , Songyue Li , Yuliang Zhu , Huiping Zeng , Jie Zhang","doi":"10.1016/j.biortech.2025.132224","DOIUrl":"10.1016/j.biortech.2025.132224","url":null,"abstract":"<div><div>Quorum sensing(QS) is a crucial aspect of Anammox(anaerobic ammonium oxidation) technology operation. Given the difficulty of accumulating Anammox bacteria, the favorable characteristics of sludge are vital for optimizing the stable operation of Anammox systems. Therefore, it is essential to study the interaction between QS and the physical properties of sludge in the Anammox process. In this study, the extended Derjaguin-Landau-Verwey-Overbeek(XDLVO) theory and rheological properties were used to determine the physical characteristics of different Anammox sludges, subsequently the relationship between these properties and signaling molecules, microorganisms and extracellular polymeric substances(EPS) was analyzed. The results indicated that certain physical properties, such as elasticity, sludge aggregation capability, and hydrophobicity, were significantly correlated with specific signaling molecules. Additionally, the dynamic changes in microbial community structure were one of the main causes of changes in the levels of signaling molecules, which stimulated the nitrogen removal performance and also affected the properties of the sludge.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"424 ","pages":"Article 132224"},"PeriodicalIF":9.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of caproate from lactate by chain elongation under electro-fermentation: Dual role of exogenous ethanol electron donor

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-20 DOI: 10.1016/j.biortech.2025.132272

Jihua Zhao , Hongzhi Ma , Ming Gao , Dayi Qian , Qunhui Wang , Long Liu

{"title":"Production of caproate from lactate by chain elongation under electro-fermentation: Dual role of exogenous ethanol electron donor","authors":"Jihua Zhao , Hongzhi Ma , Ming Gao , Dayi Qian , Qunhui Wang , Long Liu","doi":"10.1016/j.biortech.2025.132272","DOIUrl":"10.1016/j.biortech.2025.132272","url":null,"abstract":"<div><div>Ethanol and lactate as co-electron donors (co-EDs) on chain elongation (CE) have been studied, however, the effects of ethanol on lactate-driven CE remain unknown. This study evaluated the caproate production performance from lactate under different ethanol additions (7.67–23.01 g/L), and determined the optimal ethanol concentration. The results showed that the highest caproate yield of 4.51 g/L was obtained at 15.34 g/L ethanol concentration. The synergistic effects of co-EDs on caproate production were enhanced due to more stable pH and higher reducing power under appropriate ethanol stimulation. Functional bacteria related to caproate production, including <em>Sporanaerobacter</em> and <em>Clostridium_senseu_stricto_</em>12, were specifically enriched under appropriate ethanol stimulation. The ethanol toxicity caused by excessive concentration (more than 23.01 g/L) inhibited the growth of key CE bacteria and reduced the production of caproate. This study revealed the dual effects of ethanol in the co-EDs fermentation system for caproate production and determined the threshold of ethanol addition.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"424 ","pages":"Article 132272"},"PeriodicalIF":9.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioconversion of dairy co-products to polyhydroxyalkanoates by halophilic microbes with salts and nutrients recycling

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-19 DOI: 10.1016/j.biortech.2025.132228

Ke Wang , Alex M. Hobby , Allan Chio , Hamed E. El Mashad , Ruihong Zhang

引用次数: 0

Minimizing nitrous oxide emissions treating hypersaline wastewater in single stage suspended and attached partial nitritation - Anammox reactors.

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-18 DOI: 10.1016/j.biortech.2025.132266

Lin Gao, Sheldon Tarre, Michal Green

{"title":"Minimizing nitrous oxide emissions treating hypersaline wastewater in single stage suspended and attached partial nitritation - Anammox reactors.","authors":"Lin Gao, Sheldon Tarre, Michal Green","doi":"10.1016/j.biortech.2025.132266","DOIUrl":"https://doi.org/10.1016/j.biortech.2025.132266","url":null,"abstract":"<p><p>Nitrous oxide (N<sub>2</sub>O) emissions from partial nitritation- anammox (PN/A) processes for deammonification has become an important issue as the technology has become more widespread, however, N<sub>2</sub>O emissions from PN/A treating hypersaline wastewater has been little reported. Here, N<sub>2</sub>O emissions from completely mixed suspended and attached single-stage PN/A reactors treating hypersaline (4 % salinity; 40 g/kg) wastewater for ammonium removal were first investigated without the addition of organics. Results show that N<sub>2</sub>O emissions in fixed bed and suspended PN/A reactors without organic addition ranged from 0.08 % to 1.0 % and 0.09 % to 1.5 % of ammonium removed, respectively. Bulk ammonium and nitrite concentration were shown to be the main controlling factors for N<sub>2</sub>O emissions. The presence of influent organics was subsequently studied to see its effect on nitrogen removal and N<sub>2</sub>O emissions. The addition of acetate to both fixed bed and suspended reactors reduced N<sub>2</sub>O emissions by 52.5 % and 72.4 %, respectively. Quantitative PCR results showed an increase in the functional genes related to denitrification with the addition of acetate, however deammoniafication was not significantly affected.</p>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":" ","pages":"132266"},"PeriodicalIF":9.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing methane production in two-phase anaerobic digestion of perishable organic waste: Mini-review on acidogenic fermentation pathways and regulatory strategies

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-18 DOI: 10.1016/j.biortech.2025.132253

Yuwei Cheng , Haichuan Pan , Jingmin Zhang , Ming Gao , Ying Wang , Yuan Lu , Yi Rao , Chunjiang Yu , Chuanfu Wu

{"title":"Enhancing methane production in two-phase anaerobic digestion of perishable organic waste: Mini-review on acidogenic fermentation pathways and regulatory strategies","authors":"Yuwei Cheng , Haichuan Pan , Jingmin Zhang , Ming Gao , Ying Wang , Yuan Lu , Yi Rao , Chunjiang Yu , Chuanfu Wu","doi":"10.1016/j.biortech.2025.132253","DOIUrl":"10.1016/j.biortech.2025.132253","url":null,"abstract":"<div><div>Two-phase anaerobic digestion is a highly effective approach for efficient reduction and resource recovery of perishable organic waste. Within this technological framework, organic wastes undergo multiple metabolic pathways during the acidogenic phase, which is classified into ethanol, butyrate, propionate, lactate, and mixed acid fermentation depending on the acidification end products. The nature of these acidification products critically influences the performance of the subsequent methanogenic phase. Strategic regulation of operational parameters during the acidogenic phase fosters the enrichment of specific microbial communities and establishment of dominant consortia, which enable the production of the targeted acidification end-products. This review provides a comprehensive analysis of the metabolic characteristics and regulatory strategies associated with various acidogenic fermentation types and methanogenic properties of different acidification products. The findings presented here are crucial for enhancing the stability and methanogenic efficiency of anaerobic digestion systems that process perishable organic waste.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"424 ","pages":"Article 132253"},"PeriodicalIF":9.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering application on the combination of simultaneous partial nitrification and denitrification and anammox for advanced nitrogen removal from landfill leachate

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-17 DOI: 10.1016/j.biortech.2025.132257

Pei Yang , Zhaozhi Wang , Chenguang Zhang , Jinxing Zhu , Yongzhen Peng

{"title":"Engineering application on the combination of simultaneous partial nitrification and denitrification and anammox for advanced nitrogen removal from landfill leachate","authors":"Pei Yang , Zhaozhi Wang , Chenguang Zhang , Jinxing Zhu , Yongzhen Peng","doi":"10.1016/j.biortech.2025.132257","DOIUrl":"10.1016/j.biortech.2025.132257","url":null,"abstract":"<div><div>The engineering application of continuous-flow process for advanced nitrogen removal from landfill leachate via anammox is at the forefront of landfill leachate treatment field. For the full-scale engineering renovation, the anaerobic + pre-aeration + anammox + MBR process was constructed for advanced nitrogen removal from landfill leachate of 150 m<sup>3</sup>/d. Under the strategy of aeration control and low reflux ratio, a stable operation of simultaneous partial nitrification and denitrification (SPND) and anammox was achieved. Without carbon sources addition, the nitrogen removal efficiency reached 94.07 ± 1.26 %, of which the nitrogen removal contribution of the SPND and anammox process reached 64.12 ± 0.92 % and 26.46 ± 1.10 %, respectively. The anammox bacteria mainly enriched in sponge biofilm and floc sludge with abundant reached 2.57 % and 2.17 %, respectively. Compared with the original process, the renovated process could significantly save 18.51 % of the treatment consumption. This study provided a practical and feasible approach for the renovation of the existing treatment process.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"423 ","pages":"Article 132257"},"PeriodicalIF":9.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anaerobic sequencing batch reactor for concurrent removal of multiple recalcitrant munition compounds

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-17 DOI: 10.1016/j.biortech.2025.132244

Nathan Stein , Anjan Goswami , Ramesh Goel

{"title":"Anaerobic sequencing batch reactor for concurrent removal of multiple recalcitrant munition compounds","authors":"Nathan Stein , Anjan Goswami , Ramesh Goel","doi":"10.1016/j.biortech.2025.132244","DOIUrl":"10.1016/j.biortech.2025.132244","url":null,"abstract":"<div><div>Large-scale production, use, and disposal of munitions has resulted in widespread environmental contamination. A laboratory-scale anaerobic sequencing batch reactor (AnSBR) was initiated in this study to investigate the concurrent removal of multiple energetic compounds that comprise modern munition formulations. The AnSBR achieved high removal efficiencies of 2,4-dinitroanisole (DNAN, >99%) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX, 84 ± 16%), along with the partial removal of 1-nitroguanidine (NQ, 30 ± 27%). Specific DNAN, RDX, and NQ removal rates of 17.0 ± 0.1 µmol DNAN/g VSS/d, 22.0 ± 0.8 µmol RDX/g VSS/d, and 2.0 ± 0.3 µmol NQ/g VSS/d were recorded in the AnSBR under steady-state conditions, respectively. Long-term operation of the AnSBR selected <em>Actinobacteria</em> (2 – 58%) and uncultured <em>Actinomycetaceae</em> (1 – 58%) as the most abundant phylum and genus, respectively. Results from this study provide valuable insights into the development of anaerobic bioreactors for the remediation of sites impacted by modern munitions.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"423 ","pages":"Article 132244"},"PeriodicalIF":9.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spirulina (Arthrospira) cultivation in photobioreactors: From biochemistry and physiology to scale up engineering

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-17 DOI: 10.1016/j.biortech.2025.132259

Guoyu Ma , Qiping Gao , Lu Yuan , Yu Chen , Zhongzhen Cai , Liang Zhang , Jun Hu , Yunjun Wang , Shusong Wu , Yahui Sun

{"title":"Spirulina (Arthrospira) cultivation in photobioreactors: From biochemistry and physiology to scale up engineering","authors":"Guoyu Ma , Qiping Gao , Lu Yuan , Yu Chen , Zhongzhen Cai , Liang Zhang , Jun Hu , Yunjun Wang , Shusong Wu , Yahui Sun","doi":"10.1016/j.biortech.2025.132259","DOIUrl":"10.1016/j.biortech.2025.132259","url":null,"abstract":"<div><div><em>Spirulina</em> (<em>Arthrospira</em>) has been extensively applied in CO<sub>2</sub> biofixation, wastewater purification, and value-added bioproducts preparation. Light availability plays a pivotal role in <em>Spirulina</em> photoautotrophic cultivation, which is primary determined by characteristics of incident light and distribution of light within photobioreactors (PBRs). To clarify the role of light in <em>Spirulina</em> photoautotrophic cultivation, this review first analyzes the processes of light delivery and conversion in suspended PBRs. Then, effects of key light characteristics, including light intensity, spectrum, and photoperiod, on <em>Spirulina</em> growth and intracellular biochemical components synthesis are comprehensively summarized. Recent advancements in innovative PBR designs aimed at enhancing light utilization efficiency and promoting <em>Spirulina</em> growth are also highlighted. Finally, potential future research directions in the field of <em>Spirulina</em> photoautotrophic cultivation are outlined. Overall, this work provides a theoretical foundation and technical guidance for improving <em>Spirulina</em> production and specific target products synthesis from prespectives of light conditions regulation and PBRs design.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"423 ","pages":"Article 132259"},"PeriodicalIF":9.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A machine-learning approach to optimize nutritional properties and organic wastes recycling efficiency conversed by black soldier fly (Hermetia illucens)

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-17 DOI: 10.1016/j.biortech.2025.132254

Shasha Feng , Hongyan Ma , Chenxin Wu , Vimalanathan ArunPrasanna , Xili Liang , Dayu Zhang , Bosheng Chen

{"title":"A machine-learning approach to optimize nutritional properties and organic wastes recycling efficiency conversed by black soldier fly (Hermetia illucens)","authors":"Shasha Feng , Hongyan Ma , Chenxin Wu , Vimalanathan ArunPrasanna , Xili Liang , Dayu Zhang , Bosheng Chen","doi":"10.1016/j.biortech.2025.132254","DOIUrl":"10.1016/j.biortech.2025.132254","url":null,"abstract":"<div><div>Suboptimal nutrition in organic waste limits the growth of black soldier fly (BSF) larvae, thereby reducing biowaste recycling efficiency. In this study, weight gain data from BSF larvae fed diets with distinct nutrient compositions were used to build a machine learning model. Among the algorithms tested, the XGBoost model demonstrated the best performance in predicting weight gain. The model identified protein as the most critical nutrient factor for larval biomass and was used to determine the optimal diet by calculating the highest weight gain from 30,000 randomly generated nutrient combinations. Supplementing the missing nutrients in organic waste according to the optimal diet improved the weight gain and feed conversion rate of BSF larvae. Feeding larvae a mixture of organic wastes, a cost-effective strategy to meet dietary nutrition requirements, resulted in significant increases in both the bioconversion rate (up to 9.7%) and mass reduction rate (up to 22.8%) of organic waste.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"423 ","pages":"Article 132254"},"PeriodicalIF":9.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Promoting the glycosylation of drug-like natural products in a Saccharomyces cerevisiae chassis by deletion of endogenous glycosidases

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-02-17 DOI: 10.1016/j.biortech.2025.132258

Yingying Huang , Weimao Zhong , Kinga E. Varga , Zsigmond Benkő , István Pócsi , Chenglong Yang , István Molnár

{"title":"Promoting the glycosylation of drug-like natural products in a Saccharomyces cerevisiae chassis by deletion of endogenous glycosidases","authors":"Yingying Huang , Weimao Zhong , Kinga E. Varga , Zsigmond Benkő , István Pócsi , Chenglong Yang , István Molnár","doi":"10.1016/j.biortech.2025.132258","DOIUrl":"10.1016/j.biortech.2025.132258","url":null,"abstract":"<div><div>Glycosylation is an effective strategy to improve the absorption, distribution, metabolism, excretion, and toxicity of natural product (NP) pharmacophores. While heterologous production of broad-spectrum fungal glucosyltransferases such as BbGT86 of <em>Beauveria bassiana</em> yields varied phenolic glucoconjugates in <em>S. cerevisiae</em>, endogenous yeast glycosidases diminish the conversion yields and limit the structural diversity of the products. We set out to improve the efficiency and broaden the regiospecificity of the glucosylation of NPs or their unnatural product analogues (uNPs). Using yeast strains deficient in exoglycanases EXG1 or SPR1, we evaluated total biosynthetic and biocatalytic synthetic biology platforms to produce glycoconjugates from polyketides of the benzenediol lactone family, and polyphenols of the phenylpropanoid class. We show that for 13 out of the 18 aglycons tested, exoglycanase deletions improve glucoside yields and/or alter glucoconjugate regioisomer distributions, while macrolactone glycoconjugates with an aryl methylene ketone moiety are impervious to hydrolysis by EXG1. We demonstrate that elimination of EXG1 or biosynthetic methylation of glucosides are efficient alternative strategies to differentially modulate glycoside regioisomer profiles for future pharmaceutical, nutraceutical or crop protection applications.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"422 ","pages":"Article 132258"},"PeriodicalIF":9.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0