Bioresource Technology最新文献_第10页

Electrostatically assembled maghemite nanoparticles-Lactobacillus plantarum: A novel hybrid for enhanced antioxidant, antimicrobial, and antibiofilm efficacy 静电组装磁赤铁矿纳米颗粒-植物乳杆菌：一种增强抗氧化，抗菌和抗生物膜功效的新型杂交

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-12 DOI: 10.1016/j.biortech.2025.132538

Jayshri A. Shingade , Navnath S. Padalkar , Jae Hwan Shin , Yeong Hyeock Kim , Tae Jung Park , Jong Pil Park , Abhinandan R. Patil

{"title":"Electrostatically assembled maghemite nanoparticles-Lactobacillus plantarum: A novel hybrid for enhanced antioxidant, antimicrobial, and antibiofilm efficacy","authors":"Jayshri A. Shingade , Navnath S. Padalkar , Jae Hwan Shin , Yeong Hyeock Kim , Tae Jung Park , Jong Pil Park , Abhinandan R. Patil","doi":"10.1016/j.biortech.2025.132538","DOIUrl":"10.1016/j.biortech.2025.132538","url":null,"abstract":"<div><div>Excessive antibiotic use contributes to oxidative stress and microbial imbalance, leading to increased growth of pathogens and biofilm formation. To address this, we developed a novel electrostatically assembled hybrid of maghemite nanoparticles and <em>Lactobacillus plantarum</em> (MNPs-<em>LAB</em>) as a multifunctional agent. Structural and surface interactions were confirmed through X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS), while transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM) analyses revealed a uniform distribution of MNPs on the <em>LAB</em> surface. The MNPs-<em>LAB</em> hybrid exhibited strong antioxidant activity (71.45 % at 500 µg/mL) and enhanced antimicrobial performance against <em>Listeria monocytogenes</em>. In addition, the hybrid inhibited biofilm formation and effectively eradicated preformed biofilms of <em>Staphylococcus succinus</em>, <em>Listeria monocytogenes</em>, <em>Escherichia coli</em>, and <em>Salmonella thompson.</em> Notably, the low cytotoxicity observed in Caco-2 cells indicated good biocompatibility with intestinal epithelial cells. These results highlight the potential of MNPs-<em>LAB</em> hybrid as a safe and effective therapeutic candidate for combating oxidative stress, microbial infections, and biofilm-associated challenges.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"430 ","pages":"Article 132538"},"PeriodicalIF":9.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844140","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

Microbial inoculant accelerated pig slurry maturation at low-temperature anaerobic digestion: Performance and mechanism 微生物接种剂在低温厌氧消化条件下加速猪浆液成熟：性能和机理

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-12 DOI: 10.1016/j.biortech.2025.132532

Yali Yang , Zhe Zhao , Dengchao Lei , Hongbo He , Hongtu Xie , Xudong Zhang , Shijun Sun , Xuelian Bao , Yulan Zhang

{"title":"Microbial inoculant accelerated pig slurry maturation at low-temperature anaerobic digestion: Performance and mechanism","authors":"Yali Yang , Zhe Zhao , Dengchao Lei , Hongbo He , Hongtu Xie , Xudong Zhang , Shijun Sun , Xuelian Bao , Yulan Zhang","doi":"10.1016/j.biortech.2025.132532","DOIUrl":"10.1016/j.biortech.2025.132532","url":null,"abstract":"<div><div>This study investigated the impact of microbial inoculants on maturing pig slurry during anaerobic digestion (AD) at psychrophilic temperatures (10 °C). A simulation experiment was conducted with two treatments: pig slurry alone (CK) and pig slurry supplemented with microbial inoculants (MA). The MA treatment achieved faster maturity than CK, as evidenced by an improved germination index (achieving 70 % in advance) and a reduced content of organic pollutants, which was attributed to an increased relative abundance of hydrolytic microorganisms (7–21 %) and decreased pathogens (6–9 %) at the early stage (<42 (d)). Microbial inoculants influenced pig slurry microorganisms by serving as keystone taxa (<em>B_OTU229</em> (<em>f_Ruminococcaceae</em>) and <em>F_OTU76</em> (<em>s_Acremonium alcalophilum</em>)), and stimulating new keystone taxa (<em>B_OTU423</em> (<em>g_NK4A214</em>) and <em>F_OTU25</em> (<em>g_Clavulina</em>)) through associative interactions, thereby intensifying saprotrophic and carbon cycling processes, and accelerating maturation. These results provide a biological strategy for maturing pig slurry and help elucidate the mechanisms underlying microbial effects.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"430 ","pages":"Article 132532"},"PeriodicalIF":9.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844137","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

Synthesis of potential prebiotic oligosaccharides with diverse glycosidic linkages from corn stover via simultaneous hydrolysis and glycosylation 以玉米秸秆为原料，通过同时水解和糖基化合成具有多种糖苷键的潜在益生元低聚糖

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-12 DOI: 10.1016/j.biortech.2025.132486

Meijun Zeng , Jee-Hwan Oh , Jan-Peter van Pijkeren , Xuejun Pan

{"title":"Synthesis of potential prebiotic oligosaccharides with diverse glycosidic linkages from corn stover via simultaneous hydrolysis and glycosylation","authors":"Meijun Zeng , Jee-Hwan Oh , Jan-Peter van Pijkeren , Xuejun Pan","doi":"10.1016/j.biortech.2025.132486","DOIUrl":"10.1016/j.biortech.2025.132486","url":null,"abstract":"<div><div>This study presents the synthesis of potential prebiotic oligosaccharides directly from corn stover using concentrated sulfuric acid as both solvent and catalyst under mild conditions. The process involves dissolving corn stover at 20 °C for 1 h, followed by simultaneous hydrolysis of cellulose and hemicellulose and glycosylation of the resulting mono- and oligo-saccharides at 50 °C for 10 min in 80 wt% H<sub>2</sub>SO<sub>4</sub>. A yield of 48.8 % of corn stover-derived oligosaccharides (CS-OS) was achieved, nearing the theoretical yield. Structural analysis revealed that CS-OS were primarily gluco-oligosaccharides (average degree of polymerization (DP) 4.3) and xylo-oligosaccharides (average DP 3.6) with diverse α/β-(1→6/4/3/2/1) glycosidic bonds. Preliminary <em>in vitro</em> evaluation demonstrated that CS-OS effectively supported the growth of three probiotic strains (<em>Lactobacillus</em> and <em>Pediococcus</em>), outperforming commercial prebiotic isomalto-oligosaccharides and matching commercial prebiotic xylo-oligosaccharides. This study offers a valuable method to convert agricultural waste lignocellulosic biomass into valuable prebiotic oligosaccharides.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"429 ","pages":"Article 132486"},"PeriodicalIF":9.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838825","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

Enhancement of 3-hydroxyvalerate fraction in poly(3-hydroxybutyrate-co-3-hydroxyvalerate) produced by Haloferax mediterranei fed with food waste pretreated via arrested anaerobic digestion integrated with microbial electrolysis cells 地中海卤代铁以经微生物电解池阻氧消化预处理的食物垃圾为食，提高其聚（3-羟基丁酸盐-co-3-羟基戊酸盐）中3-羟戊酸酯的含量

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-12 DOI: 10.1016/j.biortech.2025.132536

Xueyao Zhang , Naresh Kumar Amradi , Martin Moore , Amro Hassanein , Rebecca L. Mickol , Emily L. McCoy , Brian J. Eddie , Jamia S. Shepard , Jiefu Wang , Stephanie Lansing , Matthew D. Yates , Young-Teck Kim , Zhi-Wu Wang

{"title":"Enhancement of 3-hydroxyvalerate fraction in poly(3-hydroxybutyrate-co-3-hydroxyvalerate) produced by Haloferax mediterranei fed with food waste pretreated via arrested anaerobic digestion integrated with microbial electrolysis cells","authors":"Xueyao Zhang , Naresh Kumar Amradi , Martin Moore , Amro Hassanein , Rebecca L. Mickol , Emily L. McCoy , Brian J. Eddie , Jamia S. Shepard , Jiefu Wang , Stephanie Lansing , Matthew D. Yates , Young-Teck Kim , Zhi-Wu Wang","doi":"10.1016/j.biortech.2025.132536","DOIUrl":"10.1016/j.biortech.2025.132536","url":null,"abstract":"<div><div>Bioplastics made of poly(3-hydroxybutyrate-<em>co</em>-3-hydroxyvalerate) (PHBV) with a 20 mol% HV fraction are highly desirable in the market for 3-Hydroxyvalerate (HV)-conferred superior thermal, biological, and mechanical properties. Although <em>Haloferax mediterranei</em> (<em>HM</em>) is capable of producing PHBV from food waste, its HV fraction is generally lower than 10 mol%. This study for the first time investigated the engineering approach to increasing HV fraction through elevating the propionic and valeric acid fractions in volatile fatty acids (VFAs) produced from food waste via arrested anaerobic digestion with and without microbial electrolysis cells (MECs) incorporation. Results showed that HV fraction in PHBV produced by <em>HM</em> is proportional to the fractions of propionic and valeric acids in VFAs. A 20 mol% HV fraction can be achieved by MECs incorporation, which might be attributable to pH regulation by the MECs. These findings lay a foundation for developing waste-processing technologies that enable the production of high-value, microbially-derived materials.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"430 ","pages":"Article 132536"},"PeriodicalIF":9.7,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864031","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

Biomass multi-stage comminution for entrained-flow gasification process 生物质携流气化过程的多级粉碎

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-12 DOI: 10.1016/j.biortech.2025.132539

Yunfei Yang, Xiaolei Guo, Haifeng Lu, Haifeng Liu

引用次数: 0

Biodegradation of sulfadiazine in anaerobic co-digestion of swine manure and food waste 猪粪与食物垃圾厌氧共消化中磺胺嘧啶的生物降解

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-11 DOI: 10.1016/j.biortech.2025.132518

Jialin Liang , Yu Zhang , Jiaqi Zhang , Zhizhuang Xie , Huiyi Chen , Konrad Koch , Aibin Hu , Liwen Luo

{"title":"Biodegradation of sulfadiazine in anaerobic co-digestion of swine manure and food waste","authors":"Jialin Liang , Yu Zhang , Jiaqi Zhang , Zhizhuang Xie , Huiyi Chen , Konrad Koch , Aibin Hu , Liwen Luo","doi":"10.1016/j.biortech.2025.132518","DOIUrl":"10.1016/j.biortech.2025.132518","url":null,"abstract":"<div><div>This study explored the feasibility of employing the AcoD process for the removal of antibiotics and examined the impact of antibiotics on system performance. Sulfadiazine (SDZ), a prevalent broad-spectrum sulfonamide antibiotic in veterinary medicine, was selected as the model compound. Results showed that with the presence of SDZ at a concentration of 450 mg/kg total solids, the cumulative methane yield demonstrated a substantial decline of 79.2 % compared to the control group. The specific removal rate of SDZ was 47.5 % at 450 mg SDZ/kg total solids, surpassing those observed in traditional mono-anaerobic treatment processes. The elimination of SDZ by the AcoD system was predominantly ascribed to biodegradation. Within the AcoD system, cytochrome P450 enzyme (CYP450) served as the crucial enzyme in the biodegradation of SDZ. From a molecular point of view, the main interaction sites of SDZ with CYP450 enzyme were located as Thr258, Glu257, Pro428, Ala254, and Val318. Six transformation products were identified in the biodegradation process. Community diversity revealed that the predominant genera, <em>Syntrophomonadaceae, Acinetobacter, AUTHM297,</em> and <em>Anaerolineaceae,</em> were enriched in the AcoD process, which probably contributed to SDZ removal. In summary, the AcoD system may possess sufficient robustness to transform SDZ antibiotic.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"429 ","pages":"Article 132518"},"PeriodicalIF":9.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823823","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

Light/dark cycles and iron supplementation to enhance the simultaneous production of polyhydroxyalkanoates, 5-aminolevulinic acid, coenzyme Q10, and pigments through photofermentation 光/暗循环和补铁提高光发酵过程中聚羟基烷酸酯、5-氨基乙酰丙酸、辅酶Q10和色素的同步生产

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-11 DOI: 10.1016/j.biortech.2025.132513

Virginia Montiel-Corona , Germán Buitrón

{"title":"Light/dark cycles and iron supplementation to enhance the simultaneous production of polyhydroxyalkanoates, 5-aminolevulinic acid, coenzyme Q10, and pigments through photofermentation","authors":"Virginia Montiel-Corona , Germán Buitrón","doi":"10.1016/j.biortech.2025.132513","DOIUrl":"10.1016/j.biortech.2025.132513","url":null,"abstract":"<div><div>This study aimed to obtain 5-aminolevulinic acid (5-ALA), Coenzyme Q<sub>10</sub> (CoQ<sub>10</sub>), polyhydroxyalkanoates (PHA), carotenoids, and bacteriochlorophylls (Bchl) through the photofermentation of residual wine lees. Light/dark cycles and iron supplementation were evaluated. Under 12-hour light/dark cycles, the production of 5-ALA, CoQ<sub>10</sub>, carotenoids, and Bchl increased by 1.7, 2.8, 1.7, and 2.4 times, respectively, compared to the continuous illumination control, while PHA production decreased from 511 to 445 mg/L. Combining light/dark cycles with iron supplementation enhanced the biomass production rate. The CoQ<sub>10</sub> content increased by 4.9 times (reaching 8.8 mg/g-dw), carotenoids by 3.7 times (6.4 mg/g-dw), and Bchl by 6.4 times (17.9 mg/g-dw) compared to the control treatment, while maintaining 5-ALA at 5.3 µmol/L and PHA at 377 mg/L. The combination of light/dark cycles and iron provides a triple benefit: increased production of value-added substances, enhanced biomass production rate, and improved organic matter removal, making it an attractive option for winery effluent treatment and valorization.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"429 ","pages":"Article 132513"},"PeriodicalIF":9.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833928","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

Waste corn stalk-derived biomass carbon materials as two-electron ORR electrocatalysts for dye contaminant degradation and water disinfection 废玉米秸秆衍生生物质碳材料作为染料污染物降解和水消毒的双电子ORR电催化剂

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-11 DOI: 10.1016/j.biortech.2025.132512

Yongxing Diao , Guangxing Hu , Shuang Cui , Yan Shi , Hongda Wang , Zhuang Li

{"title":"Waste corn stalk-derived biomass carbon materials as two-electron ORR electrocatalysts for dye contaminant degradation and water disinfection","authors":"Yongxing Diao , Guangxing Hu , Shuang Cui , Yan Shi , Hongda Wang , Zhuang Li","doi":"10.1016/j.biortech.2025.132512","DOIUrl":"10.1016/j.biortech.2025.132512","url":null,"abstract":"<div><div>Porous carbon materials as efficient two-electron oxygen reduction reaction (ORR) electrocatalysts for on-situ production of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) is one of the promising alternatives to the traditional anthraquinone process. Herein, waste corn stalks-derived porous carbon composites (CSDC-O, Fe/CSDC-O-12) were developed as two-electron ORR electrocatalysts for H<sub>2</sub>O<sub>2</sub> generation and the further organic dye pollutants degradation and water disinfection. The high-temperature pyrolysis and oxidation treatment enriched the hierarchical porous structure of the biomass carbon materials, improved graphitization degree and the content of oxygen-containing functional groups, which facilitated the increase of active sites density, the mass and charge transfer rates acceleration, and the active and selective H<sub>2</sub>O<sub>2</sub> generation. Based on the remarkable two-electron ORR selectivity and long-term stability in both alkaline and acidic media exhibited by Fe/CSDC-O-12, it was used to completely degrade 25 mg L<sup>−1</sup> of rhodamine B and methyl orange within 70 and 80 min, respectively. Moreover, the CSDC-O electrocatalyst demonstrated disinfection efficiency exceeding 99.9999 % against Escherichia coli and Staphylococcus aureus within 20 and 60 min, respectively. Thus, our work provides a feasibility verification for the transformation of abundant biomass corn stalk waste into low-cost, sustainable, and high-value-added two-electron ORR electrocatalysts, and expand their application in dye contaminant degradation and water disinfection.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"429 ","pages":"Article 132512"},"PeriodicalIF":9.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838823","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

NaCl as an excellent trigger-induced biodiesel production and phenol-containing wastewater treatment in a novel salt-tolerant microalgae Ankistrodesmus sp. ACC NaCl在新型耐盐微藻Ankistrodesmus sp. ACC中作为触发诱导生物柴油生产和含酚废水处理的良好条件

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-11 DOI: 10.1016/j.biortech.2025.132515

Xuejiao An , Yousif Abdelrahman Yousif Abdellah , Lijing Wang , Elsiddig A.E. Elsheikh , Yanlin Wang , Zhengyu Yangjin , Gen Hu

{"title":"NaCl as an excellent trigger-induced biodiesel production and phenol-containing wastewater treatment in a novel salt-tolerant microalgae Ankistrodesmus sp. ACC","authors":"Xuejiao An , Yousif Abdelrahman Yousif Abdellah , Lijing Wang , Elsiddig A.E. Elsheikh , Yanlin Wang , Zhengyu Yangjin , Gen Hu","doi":"10.1016/j.biortech.2025.132515","DOIUrl":"10.1016/j.biortech.2025.132515","url":null,"abstract":"<div><div>This study investigates how high salt stress enhances lipid buildup and phenol removal in <em>Ankistrodesmus</em> sp<em>.</em> ACC. NaCl is a better trigger for treating phenol wastewater (nearly 100 % nitrogen, phosphorus and phenol removal) and producing high-quality biodiesel (0.37 g/L•d). Multi-omics data revealed significant increases in nicotinamide-adenine-dinucleotide phosphate (NADPH), adenosine-triphosphate (ATP), Ca-dependent kinases, serine/threonine-protein kinase, and the Na/Ca exchanger to mitigate Na<sup>+</sup>-induced ROS. Elevated ATP and NADPH levels support increased activity in the pyruvate-malate cycle and electron transport activity system (ETAS), which enhances phenol removal and further promotes the tricarboxylic acid cycle (TCA). The TCA cycle operates to generate a carbon skeleton to provide energy for microalgal metabolism or growth. In addition, nitrogen pollutants are converted into starch and triglycerides, providing a material energy basis for the adaptation of microalgae to salt stress. These insights deepen our understanding of contaminants degradation and lipid synthesis by microalgae under high salt stress</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"429 ","pages":"Article 132515"},"PeriodicalIF":9.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823824","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

Metabolic responses of microalgal-bacterial granular sludge to enrofloxacin and sulfamethoxazole exposure 微藻-细菌颗粒污泥对恩诺沙星和磺胺甲恶唑暴露的代谢反应

IF 9.7 1区环境科学与生态学

Bioresource Technology Pub Date : 2025-04-11 DOI: 10.1016/j.biortech.2025.132516

Yuting Shi , Chengxiang Xu , Kaiyang Xu , Changqing Chen , Anjie Li , Bin Ji

{"title":"Metabolic responses of microalgal-bacterial granular sludge to enrofloxacin and sulfamethoxazole exposure","authors":"Yuting Shi , Chengxiang Xu , Kaiyang Xu , Changqing Chen , Anjie Li , Bin Ji","doi":"10.1016/j.biortech.2025.132516","DOIUrl":"10.1016/j.biortech.2025.132516","url":null,"abstract":"<div><div>This study examined the removal performance and responses of the microalgal-bacterial granular sludge (MBGS) system to enrofloxacin (ENR), sulfamethoxazole (SMX), and their combination. Results showed that MBGS could achieve 73.2 % and 64.0 % removals of ENR and SMX at 1 mg/L of mixed antibiotics, while ENR severely affected organics removal (from 84.5 % to 74.7 %). Antibiotic exposures could raise reactive oxygen species levels, thereby disrupted cellular structures and energy metabolism. ENR had the most significant disruptive effect, markedly reducing the abundance of <em>Oscillatoriales</em> and impairing their interactions with other taxa. In contrast, <em>Xanthomonadales</em> and <em>Micrococcales</em> were essential for sustaining energy metabolism under ENR stress, while <em>Hyphomicrobiales</em> demonstrated strong adaptability to these antibiotics. Notably, the combination of ENR and SMX mitigated oxidative stress, facilitating the growth of <em>Rhodospirillales</em> and <em>Chloroflexales</em>. These findings provide insights into microbial adaptation mechanisms under antibiotic pressure and offer guidance for optimizing wastewater treatment strategies in antibiotic-contaminated environments.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"429 ","pages":"Article 132516"},"PeriodicalIF":9.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844786","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