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Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

SSRN

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista Rodrigues, Aline Sueli de Lima de Matos, Letícia Paiva Mendonça, Juliana dos Santos da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Islam, Abu Reza Md. Towfiqul Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy CommissionBangladesh Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Tirunelveli Tamil Nadu Alwarkurichi627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri BegawanBE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

We aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28-d of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. When taken together and after applying IBRv2 and PCA, we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Muscle

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Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

SSRN

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista de Lima Rodrigues, Aline Sueli de Matos, Letícia Paiva dos Santos Mendonça, Juliana da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Towfiqul Islam, Abu Reza Md. Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 Km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy Commission Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Alwarkurichi Tamil Nadu Tirunelveli627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

Although the ecotoxicity of carbon-based nanomaterials (CBNs) is known, the potential effect of carbon nanofibers (CNFs) on edaphic organisms has not been evaluated. Thus, we aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28 days of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. Although we did not notice a concentration-response for several of the biomarkers, when taken together and after the application of IBRv2 and principal component analysis (PCA), we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. This was mainly determined by inhibiting antioxidant activity in the seminal vesicle, biochemical biomarkers assessed in muscle and intestine, and histomorphometric muscle biomarkers from earthworms exposed to CNFs at 100 mg/kg. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Biomarkers

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Implementation Effectiveness of Mercury Elimination Policies in Artisanal Small-Scale Gold Mining

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IOP Conference Series: Earth and Environmental Science 2022年第1期950卷

作者： M R Sapulete H Effendi E Riani Machfud Natural Resources and Environmental Management Science Study Program Graduate School of IPB University West Java Indonesia Department of Community Medicine Faculty of Medicine Sam Ratulangi University North Sulawesi Indonesia Environmental Research Center IPB University West Java Indonesia Department of Aquatic Resources Management Faculty of Fisheries and Marine Sciences IPB University West Java Indonesia Department of Agriculture Industrial Technology Faculty of Agricultural Technology IPB University West Java Indonesia

This study evaluated the implementation effectiveness of mercury elimination policies in the Artisanal Small-Scale Gold Mining (ASGM) at Bolaang Mongondow District. A qualitative method used as an explanatory design through interviews and questionnaires. The data collected were analyzed using the Regulatory Gap Analysis method. Based on the data obtained, only 33% of respondents (community representatives) were aware of the mercury elimination policy. 75% of respondents (relevant agencies) have been aware of UU No. 11/2017 about the ratification of the Minamata Convention and the national action plan of the mercury elimination in gold processing in 2014-2018 ESDM (RAN-PPM PE 2014-2018 ESDM). 63% of respondents were aware of PP No. 21/2019 about the national action plan for reduction and elimination of mercury (PP 21/2019 RAN-PPM), and only 50% of respondents who were aware of PMK No. 57/2016 about the national action plan for controlling health impacts due to mercury exposure in 2016-2020 (PMK 57/2016 RAN-PDKAM). The average gap value based on the evaluation result of each policy was: -0.4 in RAN-PPM PE 2014-2018 ESDM, -0.24 in PP 21/2019 RAN-PPM, and -0.21 in PMK 57/2016 RAN-PDKAM. Therefore, the implementation of these policies is unsuccessful in overcoming mercury usage in the ASGM.

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Localized growth drives spongy mesophyll morphogenesis

arXiv

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arXiv 2022年

作者： Treado, John D. Roddy, Adam B. Théroux-Rancourt, Guillaume Zhang, Liyong Ambrose, Chris Brodersen, Craig Shattuck, Mark D. O’Hern, Corey S. Department of Mechanical Engineering & Materials Science Integrated Graduate Program in Physical and Engineering Biology Yale University New HavenCT06520 United States Institute of Environment Department of Biological Sciences Florida International University MiamiFL33199 United States University of Natural Resources and Life Sciences Vienna Department of Integrative Biology and Biodiversity Research Institute of Botany Vienna1180 Austria Department of Biology College of Arts and Science University of Saskatchewan SaskatoonS7N 5E2 Canada School of the Environment Yale University New HavenCT06520 United States Department of Physics Benjamin Levich Institute City College of New York New YorkNY10031 United States Department of Physics Department of Applied Physics Yale University New HavenCT06520 United States

The spongy mesophyll is a complex, porous tissue found in plant leaves that enables carbon capture and provides mechanical stability. Unlike many other biological tissues, which remain confluent throughout development, the spongy mesophyll must develop from an initially confluent tissue into a tortuous network of cells with a large proportion of intercellular airspace. How the airspace in the spongy mesophyll develops while the cells remain mechanically stable remains unknown. Here, we used computer simulations of deformable particles to develop a purely mechanical model for the development of the spongy mesophyll tissue. By stipulating that (1) cell perimeter grows only near voids, (2) cells both form and break adhesive bonds, and (3) the tissue pressure remains constant, the computational model was able to recapitulate the developmental trajectory of the microstructure of the spongy mesophyll observed in Arabidopsis thaliana leaves. Robust generation of pore space in the spongy mesophyll requires a balance of cell growth, adhesion, stiffness and tissue pressure to ensure cell networks remain both porous yet mechanically robust. The success of this mechanical model of tissue growth and porosity evolution suggests that simple physical principles can coordinate and drive the development of complex plant tissues like the spongy mesophyll. © 2022, CC BY.

关键词： Tissue

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The Process We Call Earth: Relationships Between Dynamic Feedbacks and the Search for Gaiasignatures in a New Paradigm of Earthlikeness

Perspectives of Earth and Space Scientists

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Perspectives of Earth and Space Scientists 2024年第1期5卷

作者： Michael L. Wong Marissa Duckett Emilia S. Hernandez Vahab Rajaei Kayla J. Smith Earth and Planets Laboratory Carnegie Institution for Science Washington DC USA NASA Hubble Fellowship Program Space Telescope Science Institute Baltimore MD USA M. L. Wong Population Biology Ecology and Evolution Graduate Program Graduate Division of Biological & Biomedical Sciences Emory University Atlanta GA USA Department of Earth and Planetary Sciences University of California Davis Davis CA USA Alaska Center for Energy and Power University of Alaska Fairbanks Fairbanks AK USA School of Chemistry and Biochemistry Georgia Institute of Technology Atlanta GA USA NASA Center for the Origins of Life Georgia Institute of Technology Atlanta GA USA Environmental Engineering Program Department of Water Resources Management Central State University Wilberforce OH USA

Standard notions of an “Earthlike” planet rely solely on physical and material properties, like planetary mass, radius, and surface temperature. Here, we introduce a novel, relational perspective on what defines “Earthlikeness.” In our process-based framework, rocky planets are local pockets of free energy that have the potential to drive the emergence of dynamically persistent systems that coevolve with one another. Examples of dynamically persistent planetary phenomena include magnetic dynamos, mantle convection, tectonic regimes, deep volatile cycles, global climate feedbacks, biogeochemical cycles, and the biosphere. When two or more processes couple to one another such that they gain causal efficacy over one another's persistence, some degree of planetary-scale homeostasis may emerge. In astrobiology, Earthlike exoplanets are often considered to be priority targets for the search for life elsewhere. We suggest that a process-based framework for Earthlikeness has the potential to widen our search space and inspire novel planetary-scale biosignatures, or “Gaiasignatures,” that may be essential for detecting exoplanetary biospheres. Additionally, a process-based view of life can influence the development of agnostic biosignatures at all scales. In contrast to the dominant scientific perspective, which has tended to engender a materialistic worldview, relational ontologies may contribute to our scientific understanding of Earth as a network of dynamically persistent systems, humanity as an integral part of nature, and the search for life in the universe. A process-based framework may offer a better gauge of a planetary body's degree of “Earthlikeness” than physical or material considerations The search for life on exoplanets may require looking for “Gaiasignatures”—signs of a biosphere coupling with its geosphere in a dynamically persistent fashion By virtue of contrasting with dominant scientific worldviews, the ontology of relationality intrinsic to a process-bas

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Oil palm plantation inside forest area?

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IOP Conference Series: Earth and Environmental Science 2020年第1期583卷

作者： Y Yonariza Y Yurike Integrated Natural Resources Management Field of Study Graduate Program Universitas Andalas Padang 25163 West Sumatra Indonesia

The problem of land-use competition continues despite the availability of cadastral technology such as remote sensing and land use mapping technology including the usage of global or geo-positioning system tool to avoid such competition. This happens mainly in state forest where forestland use permits issued by the government to use the forest for large-scale agriculture i.e., oil palm plantation overlap with other forest use permits. This illegal expansion is known as overshooting or land grabbing. In Dharmasraya District, West Sumatra Province, a private oil palm plantation overshoot 2,000 ha of state forest intended for industrial forest plantation area. This paper raises the following questions; 1) why forest land use permit overlapping, 2) once it identified what solution and negotiation taken by stakeholders; government agencies and private sectors, and 3) what is the land use result. This case study is within a working area of the production Forest management Unit (KPHP) of Dharmasraya Dharmasraya District, West Sumatra, where industrial plantation area overlaps with oil palm plantation. At the end, the industrial forest plantation area was taken by the oil palm plantation area and make it a legal occupancy. The land use permit overlap happens because of two reasons; first, local government issues oil palm plantation permit while central government issues forest use permit. Second, the oil palm company began their land clearing outside its permitted area and overlap with industrial plantation area. One this discovered; the two companies negotiated and resulted in the sale of forest industrial plantation permits to oil palm Plantation Company; the price is magnificent. But, local people follow forest land grabbing resulting in accelerated deforestation. The study suggests that one map policy is essential, but more importantly, that map and other cadastral technologies must be utilized to monitor land use and to enforce forest protection law.

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Succession of biochar addition for soil amendment and contaminants remediation during co-composting: A state of art review

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Journal of Environmental management 2023年 342卷 118191页

作者： Tran, Huu-Tuan Bolan, Nanthi S. Lin, Chitsan Binh, Quach An Nguyen, Minh-Ky Luu, The Anh Le, Van-Giang Pham, Cham Q. Hoang, Hong-Giang Vo, Dai-Viet N. Laboratory of Ecology and Environmental Management Science and Technology Advanced Institute Van Lang University Ho Chi Minh City700000 Viet Nam Faculty of Applied Technology School of Technology Van Lang University Ho Chi Minh City700000 Viet Nam The UWA Institute of Agriculture The University of Western Australia PerthWA6001 Australia School of Agriculture and Environment The University of Western Australia PerthWA6001 Australia Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Department of Academic Affair and Testing Dong Nai Technology University Bien Hoa Dong Nai 810000 Viet Nam Faculty of Environment and Natural Resources Nong Lam University of Ho Chi Minh City Hamlet 6 Linh Trung Ward Thu Duc City Ho Chi Minh City700000 Viet Nam Central Institute for Natural Resources and Environmental Studies Vietnam National University Hanoi111000 Viet Nam Institute of Applied Technology and Sustainable Development Nguyen Tat Thanh University Ho Chi Minh City755414 Viet Nam Faculty of Medicine Dong Nai Technology University Dong Nai Bien Hoa810000 Viet Nam

This paper aimed to highlight the succession of biochar addition for soil amendment and contaminants remediation during composting process. Biochar incorporated into the compost mixture promotes composting performance and enhances contaminants reduction. Co-composting with biochar for soil biota has been demonstrated via modified soil biological community abundance and diversity. On the other hand, adverse alterations to soil properties were noted, which had a negative impact on the communication of microbe-to-plant interactions within the rhizosphere. As a result, these changes influenced the competition between soilborne pathogens and beneficial soil microorganisms. Co-composting with biochar promoted the heavy metals (HMs) remediation efficiency in contaminated soils by around 66–95%. Notably, applying biochar during composting could improve nutrient retention and mitigate leaching. The adsorption of nutrients such as nitrogen and phosphorus compounds by biochar can be applied to manage environmental contamination and presents an excellent opportunity to enhance soil quality. Additionally, the various specific functional groups and large specific surface areas of biochar allow for excellent adsorption of persistent pollutants (e.g., pesticides, polychlorinated biphenyls (PCBs)) and emerging organic pollutants, such as microplastic, phthalate acid esters (PAEs) during co-composting. Finally, future perspectives, research gaps, and recommendations for further studies are highlighted, and potential opportunities are discussed. © 2023 Elsevier Ltd

关键词： Organic pollutants

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Progress in silicon-based materials for emerging solar-powered green hydrogen (H 2 ) production

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Advances in Colloid and Interface Science 2025年 343卷 103558页

作者： Aminul Islam Md. Tarekul Islam Siow Hwa Teo Hasan Mahmud A.M. Swaraz Ariyan Islam Rehan Adiba Islam Rasee Khadiza Tul Kubra Md. Munjur Hasan Md. Shad Salman R.M. Waliullah Md. Nazmul Hasan Md. Chanmiya Sheikh Tetsuya Uchida Mrs Eti Awual Mohammed Sohrab Hossain Hussein Znad Md. Rabiul Awual Department of Petroleum and Mining Engineering Jashore University of Science and Technology Jashore 7408 Bangladesh College of Engineering Korea University 145 Anam-ro Seongbuk-gu Seoul 02841 Republic of Korea Department of Leather Engineering Faculty of Mechanical Engineering Khulna University of Engineering and Technology Khulna 9203 Bangladesh Industrial Chemistry Program Faculty of Science and Natural Resources Universiti Malaysia Sabah 88400 Kota Kinabalu Sabah Malaysia Department of Genetic Engineering and Biotechnology Jashore University of Science and Technology Jashore 7408 Bangladesh Department of Chemistry School of Science The University of Tokyo 7-3-1 Bunkyo-ku Tokyo 113-0033 Japan Department of Chemistry Graduate School of Science Osaka University Osaka 560-0043 Japan Institute for Chemical Research Kyoto University Gokasho Uji Kyoto 611-0011 Japan Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 1-1 Tsushima-naka 3-Chome Okayama 700-8530 Japan Western Australian School of Mines: Minerals Energy and Chemical Engineering Curtin University GPO Box U 1987 Perth WA 6845 Australia

The imperative demand for sustainable and renewable energy solutions has precipitated profound scientific investigations into photocatalysts designed for the processes of water splitting and hydrogen fuel generation. The abundance, low toxicity, high conductivity, and cost-effectiveness of silicon-based compounds make them attractive candidates for hydrogen production, driving ongoing research and technological advancements. Developing an effective synthesis method that is simple, economically feasible, and environmentally friendly is crucial for the widespread implementation of silicon-based heterojunctions for sustainable hydrogen production. Balancing the performance benefits with the economic and environmental considerations is a key challenge in the development of these systems. The specific performance of each catalyst type can vary depending on the synthesis method, surface modifications, catalyst loading, and reaction conditions. The confluence of high crystallinity, reduced oxygen concentration, and calcination temperature within the silicon nanoparticle has significantly contributed to its noteworthy hydrogen evolution rate. This review provides an up-to-date evaluation of Si-based photocatalysts, summarizing recent developments, guiding future research directions, and identifying areas that require further investigation. By combining theoretical insights and experimental findings, this review offers a comprehensive understanding of Si-based photocatalysts for water splitting. Through a comprehensive analysis, it aims to elucidate existing knowledge gaps and inspire future research directions towards optimized photocatalytic performance and scalability, ultimately contributing to the realization of sustainable hydrogen generation.

关键词： Silicon-based materials Water splitting Hydrogen Sustainable Clean and renewable energy

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Correction : Low carbon futures: assessing the status of decarbonisation efforts at universities within a 2050 perspective

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Energy, Sustainability and Society 2023年第1期13卷 1-2页

作者： Walter Leal Filho Diogo Guedes Vidal Maria Alzira Pimenta Dinis Wim Lambrechts Claudio R. P. Vasconcelos Petra Molthan‑Hill Ismaila Rimi Abubakar Rachel M. Dunk Amanda Lange Salvia Ayyoob Sharifi European School of Sustainability Science and Research Hamburg University of Applied Sciences Ulmenliet 20 21033 Hamburg Germany Department of Natural Sciences Manchester Metropolitan University Chester Street Manchester M11 5GD UK Department of Life Sciences Faculty of Sciences and Technology Center for Functional Ecology‑Science for People and The Planet (CFE) TERRA Associate Laboratory University of Coimbra Calçada Martim de Freitas 3000‑456 Coimbra Portugal UFP Energy Environment and Health Research Unit (FP-ENAS) University Fernando Pessoa (UFP) Praça 9 de Abril 349 4249‑004 Porto Portugal Department of Marketing and Supply Chain Management Faculty of Management Open Universiteit The Netherlands (OUNL) Postbus 2960 6401 DL Heerlen The Netherlands Laboratory of Sustainability Engineering and Consumption Federal University of Paraíba João Pessoa PB Brazil Algoritmi Research Centre School of Engineering University of Minho 4800‑058 Guimarães Portugal Business Sustainability Nottingham Trent University England UK College of Architecture and Planning Imam Abdulrahman Bin Faisal University (Formerly University of Dammam) P.O. Box 1982 Dammam 31441 Saudi Arabia School of Science and the Environment Manchester Metropolitan University Chester Street Manchester M1 5GD UK Graduate Program in Civil and Environment Engineering University of Passo Fundo Campus I‑BR 285 São José Passo Fundo RS 99052‑900 Brazil Graduate School of Humanities and Social Sciences and Network for Education and Research on Peace and Sustainability Hiroshima University Higashi-Hiroshima 739-8530 Japan

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Comparison of catalysts type toward production of Chlorella biomass yield in biodiesel for renewable energy model-based ANOVA: Semi meta-analysis

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AIP Conference Proceedings 2024年第1期3027卷

作者： Dita Ariyanti Patricya Inggrid Wilhelmina Bolilanga Nugroho Adi Sasongko Novik Nurhidayat Meka Saima Perdani Anggi Khairina Hanum Hasibuan Naufan Nurrosyid Mirad Fahri Department of Chemistry Faculty of Military Mathematics and Natural Sciences Universitas Pertahanan Republik Indonesia Bogor 16810 Indonesia Research Center for Sustainable Production System and Life Cycle Assessment National Research and Innovation Agency Jakarta 10340 Indonesia Graduate Program of Energy Security Faculty of Defence Management Republic of Indonesia Defence University (RIDU) Bogor 16810 Indonesia Laboratory of Microbiology and Healthcare Central Research Department of Biology Indonesian Institute of Sciences (LIPI) Bogor 16911 Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Singaperbangsa Karawang Karawang West Java 41361 Indonesia

Microalgae is one of the main substances used in the biomass production process in order to produce environmentally-friendly biofuels. Microalgae biomass production process influenced by several of environmental factors, specifically, the use of catalysts which play an important role in order to produce a significant yield of microalgae biomass. The use of catalyst should obey the rules of green chemistry and also minimalizing the negative impact to the environment. This paper aims to compare the effectiveness of the use of three types of catalysts: biocatalysts (enzymes), homogeneous and heterogeneous catalysts. These three types catalyst then used as additive components in the transesterification process to produce microalgae biomass. This study was conducted by collecting data related to the yield of biomass contained in several scientific journals through the Science Direct website using the systematic literature review method. The data processing involves a semi meta-analysis method using the one-way Analysis of Variance (ANOVA) test, followed by the Least Significant Difference (LSD) test using Fisher’s method.

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