Article
Engineering, Chemical
Xiaoyun Hou, Qinghong Shi
Summary: A novel polymer-lipase conjugate was developed for efficient esterification of vitamin E in nonaqueous media. The conjugate showed significantly higher catalytic efficiencies compared to free lipase, resulting in shorter reaction times and higher yields. The introduction of the polymer also improved the thermal stability of the lipase and allowed for repeated use.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Keysson V. Fernandes, Elisa D. C. Cavalcanti, Eliane P. Cipolatti, Erika C. G. Aguieiras, Martina C. C. Pinto, Fernanda A. Tavares, Priscila R. da Silva, Roberto Fernandez-Lafuente, Sara Arana-Pena, Jose Carlos Pinto, Charles L. B. Assuncao, Jose Andre C. da Silva, Denise M. G. Freire
Summary: This study successfully synthesized biolubricants from by-products of soybean oil processing using the lipase from Candida rugosa, showing high conversion rates and improved efficiency through immobilization. The products demonstrated good lubricant properties, indicating a potential environmentally friendly alternative to petroleum-based lubricants.
Article
Biochemistry & Molecular Biology
Otavio Domingues, Daniela Remonatto, Leticia Karen dos Santos, Julian Paul Martinez Galan, Danilo Luiz Flumignan, Ariela Veloso de Paula
Summary: This study successfully prepared functionalized maghemite nanoparticles for immobilization of Candida rugosa lipase (CRL) and evaluated its potential in the hydrolysis of waste cooking oil (WCO) and biodiesel production. The immobilized derivative showed high catalytic activity, and after immobilization, the nanoparticles became more dispersed, which is advantageous for catalytic reactions.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Evan A. Bisirri, Thaiesha A. Wright, Daniel K. Schwartz, Joel L. Kaar
Summary: Protein-polymer conjugation is a useful approach to improve protein stability and performance, but polymer-polymer interactions can also affect the properties of polymer-modified proteins. This study demonstrates that by adjusting the ratio of polymers, the productivity of lipase can be optimized, although this may lead to a trade-off between activity and stability.
Article
Biochemistry & Molecular Biology
Dongchan Oh, Da Som No, Sung Won Yoon, Yangha Kim, Hak-Ryul Kim, In-Hwan Kim
Summary: In this study, POA-enriched TAG was synthesized successfully and the synthesis conditions were optimized to achieve the best conversion. The research demonstrated the superior activity of the Eversa immobilized lipase in TAG conversion.
PROCESS BIOCHEMISTRY
(2022)
Article
Agriculture, Multidisciplinary
Yifei Zhang, Guangzheng Ma, Shushu Wang, Binbin Nian, Yi Hu
Summary: This study achieved efficient immobilization of Candida rugosa lipase on commercial macroporous resins, resulting in an efficient catalyst for the synthesis of phytosterol esters. A solvent-free strategy using oleic acid as the esterification reaction medium yielded a high yield of ester synthesis. This immobilization strategy provides new possibilities for the high-efficiency production of pine sterol esters and other food source nutrients.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Biotechnology & Applied Microbiology
Shushu Wang, Shan Li, Runtang Liu, Wei Zhang, Huajin Xu, Yi Hu
Summary: In this study, Candida rugosa lipase (CRL) was activated and covalently immobilized on a nanocomposite material using surfactants. The nanocomposite material, fabricated by combining magnetic nanoparticles with chitosan, proved to be an ideal support for enzyme immobilization. The immobilized CRL showed improved stability and reusability.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yongfa Cheng, Oi-Ming Lai, Chin-Ping Tan, Worawan Panpipat, Ling-Zhi Cheong, Cai Shen
Summary: Immobilization can improve the stability and reusability of lipases, but may also lead to conformational changes that decrease catalytic activity. In this study, grafting proline onto UIO-66 crystals for immobilization of Candida rugosa lipase showed enhanced enzyme activity and better recycling capabilities, indicating improved catalytic efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Xiaoxu Yang, Yan Zhang, Huimin Pang, Sheng Yuan, Xuxia Wang, Zhiming Hu, Qinghua Zhou, Yaojia He, Yunjun Yan, Li Xu
Summary: The study successfully produced biodiesel from tallow seed oil by codisplaying CRL1 and ROL on the cell surfaces of P. pastoris whole-cell catalysts. The activity of codisplaying strains was significantly higher than that of single-displayed enzymes, and using codisplayed enzymes for catalysis can increase the production of methyl esters.
Article
Chemistry, Multidisciplinary
Miaojia Song, Xiaohui Di, Yu Zhang, Yongming Sun, Zhongming Wang, Zhenhong Yuan, Ying Guo
Summary: This study investigated the effects of enzyme loading, alcohol/acid ratio, and temperature on the yield of methyl levulinate through a kinetic model. The results showed that enzyme loading increases the rate constants of esterification/hydrolysis, while temperature elevation increases both the rate constants and the equilibrium constant. The application of binary regression analysis was successful in studying the enzymatic esterification kinetics.
Article
Chemistry, Physical
Joanna Chalupka, Adam Sikora, Michal Piotr Marszall
Summary: In this study, enantioselective biotransformation of (R,S)-atenolol was achieved using various catalytic systems containing ionic liquids and toluene as a reaction medium, as well as lipases from Candida rugosa. The use of a two-phase reaction system enabled the reuse of the biocatalyst and resulted in satisfactory kinetic resolution parameters.
Article
Materials Science, Multidisciplinary
Nengwen Gao, Jing Liu, Xiaoli Wang, Yu Zhang
Summary: This study investigates the immobilization of lipase on ceramic membranes using modification and cross-linking methods. The immobilized lipases show higher catalytic activity and stability, making them suitable for applications in high-temperature and alkaline environments.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Applied
Irina Apostol, Narcis Anghel, Maria Valentina Dinu, Fabio Ziarelli, Alice Mija, Iuliana Spiridon
Summary: In this study, new adsorbent materials based on xanthan, lignin and their esters were synthesized through enzymatically catalyzed esterification of lignin. The success of lignin esterification was confirmed by FTIR, C13 NMR and XPS analyses. The obtained materials showed high adsorption capacity for altered argan oil and sunflower oil, retaining over 60% of the total oil quantity. Equilibrium data fitted well to Henry, Langmuir and Harkin-Jura isotherm models.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Multidisciplinary Sciences
Aida Rasyidah Azman, Naji Arafat Mahat, Roswanira Abdul Wahab, Wan Azlina Ahmad, Dzulkiflee Ismail
Summary: The discovery of forensic evidence in underwater investigations has increased. This research aimed to compare the performance of a greener nanobio-based reagent (NBR) with the commonly used small particle reagent (SPR) in visualising fingerprints in an outdoor pond. The results showed that the optimized NBR had comparable performance to SPR and had a preference for aged fingerprints. The NBR also received an excellent greenness assessment score, supporting its practical use in forensic investigations.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Applied
Gulay Bayramoglu, Omur Celikbicak, Murat Kilic, M. Yakup Arica
Summary: Magnetic chitosan beads grafted with polydopamine were used to immobilize Candida rugosa lipase, leading to improved thermal and storage stability compared to the free enzyme. The immobilized lipase showed significant changes in catalytic properties and high conversion rates in esterification reactions, indicating its potential for various biotechnological applications.
Editorial Material
Engineering, Environmental
Rodrigo Navia
WASTE MANAGEMENT & RESEARCH
(2020)
Review
Chemistry, Multidisciplinary
Ariel Vilchez, Francisca Acevedo, Mara Cea, Michael Seeger, Rodrigo Navia
Article
Agricultural Engineering
F. Pinto-Ibieta, M. Cea, F. Cabrera, M. Abanto, F. E. Felissia, M. C. Area, G. Ciudad
BIORESOURCE TECHNOLOGY
(2020)
Article
Agronomy
Celian Roman-Figueroa, Mara Cea, Manuel Paneque, Maria Eugenia Gonzalez
Review
Biochemistry & Molecular Biology
D. Shanthana Lakshmi, Sivashunmugam Sankaranarayanan, Tejal K. Gajaria, Guoqiang Li, Wojciech Kujawski, Joanna Kujawa, Rodrigo Navia
Article
Green & Sustainable Science & Technology
Robinson Munoz, Aixa Gonzalez, Fabiola Valdebenito, Gustavo Ciudad, Rodrigo Navia, Gina Pecchi, Laura Azocar
Editorial Material
Engineering, Environmental
Edmundo Munoz, Rodrigo Navia
WASTE MANAGEMENT & RESEARCH
(2021)
Review
Agronomy
Celian Roman-Figueroa, Leon Bravo, Manuel Paneque, Rodrigo Navia, Mara Cea
Summary: Frost is a significant abiotic stress for plants and crops, with two mechanisms for protection: freezing avoidance and freezing tolerance. While there are many products available for crop protection against freezing, more information is needed to determine their effectiveness.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Jorge Bocaz-Beltran, Sebastian Rocha, Fernanda Pinto-Ibieta, Gustavo Ciudad, Mara Cea
Summary: MAE is an effective method for recovering PHAs from mixed microbial cultures with high extraction efficiency and quality, similar to conventional heat extraction. Optimal conditions for MAE include a 1-minute extraction at 130 degrees Celsius with a chloroform-to-methanol ratio of 1:1 and a solvent-to-biomass ratio of 20 volumes.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Review
Biotechnology & Applied Microbiology
Celian Roman-Figueroa, Mara Cea, Manuel Paneque
Summary: Industrial crops in Chile have limited production data and require further research and market development. Sunflower and rapeseed have been poorly studied, while native oilseed plants have potential for development.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2023)
Article
Biotechnology & Applied Microbiology
Karina Gonzalez, Alejandro Salinas, Fernanda Pinto, Rodrigo Navia, Shijie Liu, Mara Cea
Summary: The use of mixed microbial cultures (MMCs) is an attractive strategy for polyhydroxyalkanoate (PHA) production. In this study, flow cytometry was used to analyze the metabolic state and polyhydroxybutyrate (PHB) content of microorganisms in an MMC-PHA production process. The results demonstrated that flow cytometry is a powerful tool for understanding the PHA storage response in MMC-PHA production.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Review
Microbiology
K. Gonzalez, R. Navia, Shijie Liu, Mara Cea
Summary: Polyhydroxyalkanoates (PHA) are bio-based polymers with potential to replace petrochemical plastics, but commercialization is hindered by high production costs and environmentally unfriendly recovery methods. To achieve sustainable recovery of PHA, it is essential to develop more economical and efficient strategies.
CURRENT MICROBIOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Carlos Rojas, Mara Cea, Alfredo Iriarte, Gonzalo Valdes, Rodrigo Navia, Juan Pablo Cardenas-R
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2019)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
