Article
Biotechnology & Applied Microbiology
Suchi Parvin Biki, Shobuz Mahmud, Sumaia Akhter, Md Jiaur Rahman, Jessica J. Rix, Md Adnan Al Bachchu, Maruf Ahmed
Summary: In this study, bacteria were separated from landfill soil and their ability to degrade LDPE was evaluated. Ralstonia sp. strain SKM2 and Bacillus sp. strain SM1 were identified as effective LDPE-degrading microorganisms, causing weight loss and pH changes in the media. Structural changes in LDPE sheet were observed under microscope and FTIR analysis showed alterations in carbon bonds and groups.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Microbiology
Meng-Ru Wu, Ting-Ting Hou, Ying Liu, Li-Li Miao, Guo-Min Ai, Lan Ma, Hai-Zhen Zhu, Ya-Xin Zhu, Xi-Yan Gao, Craig W. Herbold, Michael Wagner, De-Feng Li, Zhi-Pei Liu, Shuang-Jiang Liu
Summary: Heterotrophic nitrifier strain HO-1 was identified as a novel bacterium capable of oxidizing ammonia to hydroxylamine and ultimately producing N-2 gas. Genome analysis revealed a unique denitrification pathway and the absence of genes for known ammonia monooxygenases or hydroxylamine oxidoreductases. Further experiments showed that strain HO-1 denitrified nitrite to N-2 and N2O under anaerobic and aerobic conditions, indicating a novel direct ammonia oxidation pathway named Dirammox.
ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Microbiology
Mingxia Zhang, Anzhang Li, Qing Yao, Botao Xiao, Honghui Zhu
Summary: A novel bacterium, Pseudomonas oligotrophica sp. nov., with the ability of heterotrophic nitrification and aerobic denitrification, was isolated in this study. The strain JM10B5a(T) exhibited high denitrification efficiency at low C/N ratio, making it a promising candidate for treating wastewater.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Environmental Sciences
Tingjiang Wang, Mengping Chen, Xiwen Liang, Fali Chen, Tengxia He, Zhu Li
Summary: Bacillus thuringiensis EM-A1 strain efficiently removes nitrogen from hydroxylamine and shows potential for bioremediation of inorganic nitrogen in wastewater.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Agricultural Engineering
Min Deng, Xiaoli Zhao, Yeerken Senbati, Kang Song, Xugang He
Summary: Pseudomonas sp. DM02 demonstrates efficient nitrogen removal capabilities in aquaculture wastewater treatment, with quick removal of total ammonia nitrogen and nitrates. Optimal environmental conditions and the presence of functional genes play a crucial role in water quality treatment.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Bohui Wei, Xiao Luo, Wenkai Ma, Pengyi Lv
Summary: In this study, a cold-resistant Rhizobium strain W57 was isolated and identified, showing significant de-nitrogenation efficiency at 15℃. The nitrogen metabolic pathways and enzyme activities were determined for strain W57. The findings suggest that W57 has potential application in cold sewage treatment.
BIORESOURCE TECHNOLOGY
(2022)
Article
Ecology
P. Laxmilatha, Shijin Ameri, K. A. Labeeb, L. Ranjith, A. Kathirvelpandian
Summary: This paper describes a new cone snail species, Conus laccadivensis sp. nov., collected from the Lakshadweep Archipelago, which differs morphologically and genetically from the closely related Conus distans. Genetic analysis using mitochondrial genes confirms the distinctiveness of the newly identified species.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Agricultural Engineering
Xiaofen Hu, Junfeng Su, Amjad Ali, Zhao Wang, Zizhen Wu
Summary: Pseudomonas sp. HXF1, capable of heterotrophic nitrification, aerobic denitrification, and biomineralization, was employed for the simultaneous removal of ammonia nitrogen and fluoride. The strain showed promising results in the removal of NH4+-N and F-. RSM was used to study the best removal conditions, indicating the potential of strain HXF1 in biological denitrification and F- removal in groundwater.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
M. Rasheeda Shameem, J. Mary Isabella Sonali, P. Senthil Kumar, Gayathri Rangasamy, K. Veena Gayathri, V. Parthasarathy
Summary: The study isolated five nitrogen-fixing bacteria from Tea and Groundnut rhizosphere soil, and identified RSKVG 02 as the most optimal strain. The conditions for RSKVG 02 were determined to be pH 7 at 30 degrees C, with 1% glucose and 0.05% ammonium sulfate as carbon and nitrogen sources. This bacterium exhibited plant growth-promoting traits and the potential to enhance soil fertility. Therefore, Rhizobium mayense could be a valuable biofertilizer for crop production, increasing yield, and improving soil fertility.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yue Zhao, Run Zhang, Liandong Jing, Wenjing Wang
Summary: This study evaluated the feasibility and durability of basalt fiber as a new carrier of periphyton and tracked the development process of basalt fiber-periphtyon (BFP) through bacterial community succession and physiological indicators. The results showed that basalt fiber was a suitable and durable carrier, and the periphyton could adapt to and grow abundantly on the basalt fiber, efficiently removing nutrients from water. The study also identified biomarkers for the development of BFP.
Article
Microbiology
Yong Guan, Zhun Li, Min-Ju Kim, Jae-Young Lee, Hanna Choe, Seung-Hwan Park, Se Won Kang, Jiyoung Lee, Ju Huck Lee, Hyeun Bum Kim, Ju-Hoon Lee, Eunju Kim, Mi-Kyung Lee
Summary: A new bacterium, named Olsenella intestinalis sp. nov., was isolated from cow feces. It belongs to the Gram-negative rod-shaped bacteria and showed a high similarity (98.2%) to O. umbonate KCTC 15140(T) based on the analysis of 16S rRNA gene sequences. The strain possesses genes encoding cell wall degrading enzymes and can grow at pH 6.0-8.0, in the presence of 0.5-1.5% NaCl, and at temperatures between 35-40 degrees Celsius.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Microbiology
Ji-Yoon Shin, Jin-Sook Park
Summary: A novel yellow-pigmented marine bacterium was isolated from a marine sponge in Jeju-do, Republic of Korea. Phylogenetic analysis showed it belongs to the Flavobacteriaceae family and represents a new species named Muricauda spongiicola sp. nov. with unique chemotaxonomic and phenotypic characteristics.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Microbiology
Jing Tang, Jiang-Yuan Zhao, Le-Le Li, Zhang-Gui Ding, Shi-Qiang Ye, Cheng Ling, Meng-Yu Zhang, Song-Guo Liang, Jian-Yu Li, Pei-Wen Yang, Jiao Xiong, Lu-Yao Feng, Zhu-Feng Shi, Ming-Gang Li, Shu-Kun Tang
Summary: A new species of the genus Cohnella, named Cohnella mopanensis, was isolated from a forest soil sample collected from Mopan Mountain National Forest Park in Yunnan Province, China. This strain shows distinctive physiological and biochemical characteristics, and is genetically different from known strains.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Environmental Sciences
Xiaoting Liu, Qichun Zhang, Xiaoyu Yang, Dan Wu, Yong Li, Hongjie Di
Summary: To solve nitrogen pollution in environmental water, two strains, Achromobacter sp. strain HNDS-1 and Enterobacter sp. strain HNDS-6, were isolated from acid paddy soil and identified as heterotrophic nitrifying and aerobic denitrifying strains. Both strains showed remarkable ability in removing nitrogen, with strain HNDS-1 achieving removal efficiencies of 93.31% for NH4+-N, 89.47% for NO3--N, and 100% for NO2--N when using different nitrogen resources. Genomic analysis identified key enzymes and transport proteins involved in nitrogen removal pathways. Further analysis revealed denitrification pathways of NO3-- > NO2-- > NO -> N2O -> N-2 for strain HNDS-1 and strain HNDS-6, while the nitrification pathway of NH4+ -> NO2- requires further investigation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Microbiology
Limin Xue, Liu Tang, Juanjuan Zhao, Zhenjuan Fang, Hanxu Liu, Jianjun Qiao, Guishan Zhang
Summary: Strain WN066(T) isolated from saline-alkali wetland soil in Tianjin, China represents a novel species within the genus Bacillus, named B. salipaludis sp. nov. This strain is able to grow under high salt and alkaline conditions, and possesses unique cellular fatty acids and polar lipids.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)