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Organic composts as A vehicle for the entry of microplastics into the environment: A comprehensive review

The science of the total environment 2023年 892卷 164758页

作者： Van-Re Le Minh-Ky Nguyen Hoang-Lam Nguyen Chitsan Lin Md Refat Jahan Rakib Van-Anh Thai Van-Giang Le Guilherme Malafaia Abubakr M Idris Ho Chi Minh City University of Food Industry (HUFI) 140 Le Trong Tan Street Tan Phu District Ho Chi Minh City 700000 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 City 700000 Viet Nam Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung 81157 Taiwan. Electronic address: nmky@hcmuaf.edu.vn. Department of Civil Engineering McGill University Montreal Canada. Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung 81157 Taiwan Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung 81157 Taiwan. Department of Fisheries and Marine Science Faculty of Science Noakhali Science and Technology University Noakhali 3814 Bangladesh. Electronic address: rifatjahanrakib@***. Institute of Aquatic Science and Technology National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan. Central Institute for Natural Resources and Environmental Studies Vietnam National University Hanoi 111000 Viet Nam. Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Electronic address: guilhermeifgoiano@***. Department of Chemistry College of Science King Khalid University 61431 Abha Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha 61421 Saudi Arabia.

Plastic pollution is a widespread issue that poses a threat to agroecosystems. Recent data on microplastic (MP) pollution from compost and its application to soil have highlighted the potential impact of micropollutants that may be transferred from compost. Thus, we aim with this review to elucidate the distribution-occurrence, characterization, fate/transport, and potential risk of MPs from organic compost to gain comprehensive knowledge and mitigate the adverse impacts of compost application. The concentration of MPs in compost was up to thousands of items/kg. Among micropollutants, fibers, fragments, and films are the most common, with small MPs having a higher potential to absorb other pollutants and cause harm to organisms. Various synthetic polymers, including polyethylene (PE), polypropylene (PP), polyethylene tereph.halate (PET), polystyrene (PS), polyvinyl chloride (PVC), polyester (PES), and acrylic polymers (AP), have been widely used of plastic items. MPs are emerging pollutants that can have diverse effects on soil ecosystems, as they can transfer potential pollutants from MPs to compost and then to the soil. Following the microbial degradation scheme, the transfer chain from plastics to compost to soil can be broken down into main stages, i.e., colonization - (bio)fragmentation - assimilation - and mineralization. Microorganisms and adding biochar play an essential role during composting, which can be an effective solution to enhance MP degradation. Findings have shown that stimulating free radical generation could promote the biodegradation efficacy of MPs and possibly remove their occurrence in compost, thereby reducing their contribution to ecosystem pollution. Furthermore, future recommendations were discussed to reduce ecosystem risks and health challenges.

关键词： Emerging contaminants Free radicals Mineralization Organic waste Plastic pollution Polymers

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Retraction notice to ‘Applications of engineered biochar in remediation of heavy metal(loid)s pollution from wastewater: Current perspectives toward sustainable development goals’ [Sci. Total Environ., 926 (2024) 171859] (science of the Total Environment (2024) 926, (S0048969724020023), (10.1016/***.2024.171859))

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science of the Total Environment 2025年 976卷 179291页

作者： Tran, Thien-Khanh Huynh, Loan Nguyen, Hoang-Lam Nguyen, Minh-Ky Lin, Chitsan Hoang, Tuan-dung Hung, Nguyen Tri Q. Nguyen, X. Hoan Chang, S. Woong Nguyen, d. duc Advanced Applied Sciences Research Group Dong Nai Technology University Bien Hoa City76100 Viet Nam Faculty of Technology Dong Nai Technology University Bien Hoa City76100 Viet Nam Department of Civil Engineering McGill University Montreal Canada Faculty of Environment and Natural Resources Nong Lam University Hamlet 6 Linh Trung Ward Thu Duc City Ho Chi Minh City700000 Viet Nam Ph.D. 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 School of Chemistry and Life Science Hanoi University of Science and Technology No. 1 Dai Co Viet Hai Ba Trung Hanoi100000 Viet Nam Vietnam National University Hanoi - School of Interdisciplinary Sciences and Arts 144 Xuan Thuy Street Cau Giay District Hanoi100000 Viet Nam Ho Chi Minh City University of Industry and Trade Ho Chi Minh City Viet Nam Department of Civil & Energy System Engineering Kyonggi University Suwon16227 Korea Republic of Institute of Applied Technology and Sustainable Development Nguyen Tat Thanh University Ho Chi Minh City700000 Viet Nam

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://***/about/policies/article-withdrawal). This article has been retracted at the request of the Authors. The corresponding author approached the journal to make it aware that significant portions of the text of the STOTEN article had already been included in the following publication involving several members of the same authorship group: Minh-Ky Nguyen, Chitsan Lin, Nguyen Tri Quang Hung, Hoang-Lam Nguyen, Hong-Giang Hoang, Huu-Tuan Tran, Mohammed Hadi, Chapter 8 - Biochar and engineering applications in remediation of heavy metal pollutants from wastewater toward sustainable development, Editor(s): Xuan-Thanh Bui, Ashok Pandey, Thanh-Tin Nguyen, Shu-Yuan Pan, Low Cost Water and Wastewater Treatment Systems: Conventional and Recent Advances, Elsevier, 2025, Pages 195-233, ISBN 9780443236624, https://***/10.1016/B978-0-443-23662-4.00016-0. The authors realise that redundant publications overweigh the relative importance of published findings, and therefore requested the retraction of the STOTEN article. The authors also apologies for any inconvenience caused. © 2025 Elsevier B.V.

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Unlocking the potential of bacterial cellulose: synthesis, functionalization, and industrial impact

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International Journal of Biological Macromolecules 2025年第Pt 3期311卷 143951页

作者： Kumaravel, Ashokkumar Lin, Shin-Ping Santoso, Shella Permatasari Shanmugasundaram, Saranya Hsu, Hsien-Yi Hsieh, Chang-Wei Chou, Yu-Chieh Lin, Hui-Wen Cheng, Kuan-Chen Institute of Food Science and Technology National Taiwan University Daan District Taipei10617 Taiwan School of Food Safety Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan Ph.D. Program in Drug Discovery and Development Industry Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan Chemical Engineering Master Program Widya Mandala Surabaya Catholic University Kalijudan 37 Surabaya60114 Indonesia Collaborative Research Center for Zero Waste and Sustainability Widya Mandala Surabaya Catholic University Kalijudan 37 Surabaya60114 Indonesia Department of Chemical Engineering Faculty of Engineering Widya Mandala Catholic University Surabaya Kalijudan 37 Surabaya60114 Indonesia Department of Chemical Engineering University of Ulsan 93 Daehak-ro Nam-gu Ulsan44610 Korea Republic of City University of Hong Kong Kowloon Tong Hong Kong Shenzhen Research Institute of City University of Hong Kong Shenzhen518057 China Department of Food Science and Biotechnology National Chung-Hsing University Taichung City40227 Taiwan Department of Food Science National Ilan University Yilan City260007 Taiwan Institute of Medicine Chung Shan Medical University Taichung40201 Taiwan Department of Medical Research Chung Shan Medical University Hospital Taichung40201 Taiwan Institute of Biotechnology National Taiwan University 1 Roosevelt Rd. Sec. 4 Taipei10607 Taiwan Department of Optometry Asia University 500 Lioufeng Rd. Wufeng Taichung41350 Taiwan Department of Medical Research China Medical University Hospital China Medical University 91 Hsueh-Shih Road Taichung40402 Taiwan Department of Food Science Fu Jen Catholic University 510 Zhongzheng Rd. Xinzhuang Dist. New Taipei City242062 Taiwan

In recent years, bacterial cellulose (BC), a crystalline and nanoscale fibrillar polymer, has garnered significant interest due to its superior ph.sical, chemical, and mechanical properties compared to plant cellulose. Inherent features of BC, which include high biodegradability, mechanical strength, and biocompatibility, make it a suitable material for use in a wide variety of applications, particularly in the domains of biomedicine and environmental science. However, realizing its full potential requires targeted chemical or ph.sical modifications. Recent developments have focused on in-situ and ex-situ BC modification for various applications. Incorporating functional compounds into cellulose during BC synthesis enhances its strength and functional properties. Additionally, the material properties of BC, such as water content, thermal stability, and antibacterial capabilities, can be enhanced through post-synthesis modifications, including chemical acetylation, ph.sph.rylation, and integration with other biopolymers. Currently, the applicability of BC is being improved using new modification techniques, which involve genetically engineered strains to enhance polymer characteristics and market potential. The review highlights recent advancements in BC research and novel modification strategies that enhance its applications in advanced biomedical engineering and sustainable packaging. © 2025

关键词： Acetylation

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Correction to: Biological synthesis and characterization of iron oxide (FeO) nanoparticles using Pleurotus citrinopileatus extract and its biomedical applications

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Biomass Conversion and Biorefinery 2023年第11期14卷 12587-12587页

作者： Manimaran, Kumar Yanto, dede Heri Yuli Govindasamy, Mani Karunanithi, Bogeshwaran Alasmary, Fatmah Ali Habab, Reem Abdulrahman Research Center for Applied Microbiology National Research and Innovation Agency (BRIN) Cibinong Republic of Indonesia Department of Product Development Institute of Biotechnology Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai India Faculty International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City Taiwan Korea University Seongbuk-gu Republic of Korea Department of Research and Innovation Saveetha School of Engineering SIMATS Thandalam India Department of Petroleum Engineering Dhaanish Ahmed College of Engineering Chennai India Department of Chemistry College of Science King Saud University Riyadh Saudi Arabia

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Evaluating the antiviral efficacy and specificity of chlorogenic acid and related herbal extracts against SARS-CoV-2 variants via spike protein binding intervention

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Journal of Traditional and Complementary Medicine 2024年

作者： Hsieh, Wen-Yu Yu, Chu-Nien Chen, Chang-Chang Chiou, Chun-Tang Green, Brian d. Lee, Oscar K. Wu, Chia-Chune doan, Ly Hien Huang, Chi-Ying F. Huang, Cheng Liu, Chien-Ju Chen, Yu-Hsin Cheng, Jing-Jy Pan, Heng-Chih Liu, Hui-Kang Biomedical Industry Ph.D. Program National Yang Ming Chiao Tung University Taipei 11221 Taiwan Institute of Clinical Medicine National Yang Ming Chiao Tung University Taipei 11221 Taiwan Division of Chinese Materia Medica Development National Research Institute of Chinese Medicine Ministry of Health and Welfare Taipei 11221 Taiwan Institute for Global Food Security School of Biological Sciences Queen's University Belfast Belfast BT7 1NN United Kingdom Department of Orthopedics China Medical University Hospital Taichung Taiwan Institute of Biopharmaceutical Sciences College of Pharmaceutical Sciences National Yang Ming Chiao Tung University Taipei 11221 Taiwan Institute of Biotechnology Vietnam Academy of Science and Technology Hanoi Viet Nam Program in Molecular Medicine College of Life Sciences National Yang Ming Chiao Tung University Taipei 11221 Taiwan Taiwan National Graduate Program in Molecular Medicine Academia Sinica National Yang Ming Chiao Tung University Taipei 11221 Taiwan Institute of Clinical Medicine College of Medicine National Yang Ming Chiao Tung Taipei 11221 Taiwan Department of Biotechnology and Laboratory Science in Medicine School of Biomedical Science and Engineering National Yang Ming Chiao Tung Taipei 11221 Taiwan Department of Biochemistry School of Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan Department of Earth and Life Sciences University of Taipei Taipei 11036 Taiwan Tea and Beverage Research Station Ministry of Agriculture Yangmei Township Taoyuan County 326011 Taiwan Taichung District Agricultural Research and Extension Station Ministry of Agriculture Chang-Hwa County 515008 Taiwan Division of Basic Chinese Medicine National Research Institute of Chinese Medicine Ministry of Health and Welfare Taipei 11221 Taiwan Department of Nephrology Chang Gung Memorial Hospital Keelung City 204201 Taiwan Ph.D. Program in the Clinical Drug Development of Herbal Medicine Taipei Medical University Taipei

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and influenza A virus infect the respiratory tract through surface proteins, causing similar symptoms. Since the onset of the COVId-19 pandemic, both viruses have posed significant ongoing global health threats. Like the influenza virus, SARS-CoV-2 evolves into variants that can reduce vaccine efficacy. Thus, herbal medicines are being explored as supplementary options to enhance protection against these infections. This study aimed to investigate the therapeutic potential of chlorogenic acid (3-CQA) and related extracts from green coffee beans and Echinacea purpurea against SARS-CoV-2 variants and H1N1 infection. The methods employed included an ELISA-based trimeric spike protein binding assay, viral infection assays, plaque assays, and molecular docking studies. Results showed that 3-CQA blocked spike protein/angiotensin converting enzyme 2 (ACE2) binding for most SARS-CoV-2 variants of concern, except the delta variant. Extracts from Green coffee bean and E. purpurea effectively blocked all variants tested. Additionally, antibodies blocked spike protein binding up to Omicron BA.2. Molecular docking suggested that 3-CQA binding to Omicron BA.1, BA.2, and BA.4, though not to the delta spike protein, may lead to steric hindrance, preventing receptor-binding domain interactions with ACE2. Finally, both 3-CQA and E. purpurea extract showed preventive effects against H1N1 viral infection, though with lower potency compared to SARS-CoV-2. In conclusion, 3-CQA has potential as a ph.toconstituent marker for herbs with bioactive properties against SARS-CoV-2 and H1N1 viral infections. © 2024 Center for Food and Biomolecules, National Taiwan University

关键词： Chlorogenic acid COVId-19 Echinacea purpurea Green coffee bean H1N1 influenza virus SARS-CoV-2 variants Spike protein

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Use of machine learning algorithms to determine the relationship between air pollution and cognitive impairment in Taiwan

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Ecotoxicology and environmental safety 2024年 284卷 116885页

作者： Cheng-Hong Yang Chih-Hsien Wu Kuei-Hau Luo Huang-Chih Chang Sz-Chiao Wu Hung-Yi Chuang Department of Information Management Tainan University of Technology Tainan 71002 Taiwan Department of Electronic Engineering National Kaohsiung University of Science and Technology Kaohsiung 80778 Taiwan Ph. D. Program in Biomedical Engineering Kaohsiung Medical University Kaohsiung 80708 Taiwan School of Dentistry Kaohsiung Medical University Kaohsiung 80708 Taiwan Drug Development and Value Creation Research Center Kaohsiung Medical University Kaohsiung 80708 Taiwan. Electronic address: chyang@nkust.edu.tw. Department of Electronic Engineering National Kaohsiung University of Science and Technology Kaohsiung 80778 Taiwan. Electronic address: F108152123@nkust.edu.tw. Graduate Institute of Medicine College of Medicine Kaohsiung Medicine University Kaohsiung 80708 Taiwan. Electronic address: u107800007@kmu.edu.tw. Divisions of Pulmonary & Critical Care Medicine Department of Internal Medicine Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Kaohsiung 83341 Taiwan Ph.D Program in Environmental and Occupational Medicine and Research Center for Environmental Medicine College of Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan. Electronic address: kuan2101@yahoo.com.tw. Epidemiology in the Public Health Program College of Health Oregon State University Oregon 97331 USA. Electronic address: wusz550@***. Graduate Institute of Medicine College of Medicine Kaohsiung Medicine University Kaohsiung 80708 Taiwan Ph.D Program in Environmental and Occupational Medicine and Research Center for Environmental Medicine College of Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan Department of Public Health and Environmental Medicine School of Medicine College of Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan Department of Occupational and Environmental Medicine Kaohsiung Medicine University Hospital Kaohsiung Medicine University Kaohsiung 80708 Taiwan. Electronic address: ericch@kmu.edu.tw.

Air pollution has become a major global threat to human health. Urbanization and industrialization over the past few decades have increased the air pollution. Plausible connections have been made between air pollutants and dementia. This study used machine learning algorithms (k-nearest neighbors, random forest, gradient-boosted decision trees, eXtreme gradient boosting, and CatBoost) to investigate the association between cognitive impairment and air pollution. data from the Taiwan Biobank and 75 air-pollution-monitoring stations in Taiwan were analyzed to determine individual levels of exposure to air pollutants. The pollutants examined were particulate matter with a diameter of ≤ 2.5 μm (PM), nitrogen dioxide, nitric oxide, carbon monoxide, and ozone. The results revealed that the most strongly correlated with cognitive impairment were ozone, PM, and carbon monoxide levels with adjustment of educational level, age, and household income. The model based on these factors achieved accuracy as high as 0.97 for detecting cognitive impairment, indicating a positive association between air pollutions and cognitive impairment.

关键词： Air pollution Carbon monoxide Cognitive impairment dementia Ozone PM(2.5)

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Anethole mitigates H2O2-induced inflammation in HIG-82 synoviocytes by suppressing the aquaporin 1 expression and activating the protein kinase A pathway

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Environmental Toxicology 2024年第2期39卷 965-978页

作者： Huang, Tai-Lung Chang, Yu-Chun Tsai, Bruce Chi-Kang Chen, Tung-Sheng Kao, Shih-Wen Tsai, Yung-Yun Lin, Shinn-Zong Yao, Chun-Hsu Lin, Kuan-Ho Kuo, Wei-Wen Huang, Chih-Yang Department of Biological Science and Technology College of Life Sciences China Medical University Taichung Taiwan Department of Orthopedics Chung-Kang Branch Cheng Ching General Hospital Taichung Taiwan Cardiovascular and Mitochondrial Related Disease Research Center Hualien Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Hualien Taiwan School of Life Science National Taiwan Normal University Taipei Taiwan Department of Orthopaedic Surgery Chung-Shan Medical University Hospital Taichung Taiwan Department of Physical Therapy Asia University Taichung Taiwan Department of Neurosurgery Hualien Tzu Chi Hospital Buddhist Tzu Chi Medical Foundation Hualien Taiwan Bioinnovation Center Buddhist Tzu Chi Medical Foundation Hualien Taiwan Department of Biomedical Imaging and Radiological Science China Medical University Taichung Taiwan School of Chinese Medicine China Medical University Taichung Taiwan Biomaterials Translational Research Center China Medical University Hospital Taichung Taiwan Department of Bioinformatics and Medical Engineering Asia University Taichung Taiwan Division of Cardiovascular Medicine Department of Internal Medicine China Medical University Hospital Taichung Taiwan Department of Emergency Medicine China Medical University Hospital Taichung Taiwan College of Medicine China Medical University Taichung Taiwan Ph.D. Program for Biotechnology Industry China Medical University Taichung Taiwan Department of Medical Research China Medical University Hospital China Medical University Taichung Taiwan Graduate Institute of Biomedical Sciences China Medical University Taichung Taiwan Department of Medical Laboratory Science and Biotechnology Asia University Taichung Taiwan Center of General Education Buddhist Tzu Chi Medical Foundation Tzu Chi University of Science and Technology Hualien Taiwan

Rheumatoid arthritis (RA) is an autoimmune inflammatory disease affecting approximately 1% of the global population, with a higher prevalence in women than in men. Chronic inflammation and oxidative stress play pivotal roles in the pathogenesis of RA. Anethole, a prominent compound derived from fennel (Foeniculum vulgare), possesses a spectrum of therapeutic properties, including anti-arthritic, anti-inflammatory, antioxidant, and tumor-suppressive effects. However, its specific impact on RA remains underexplored. This study sought to uncover the potential therapeutic value of anethole in treating RA by employing an H2O2-induced inflammation model with HIG-82 synovial cells. Our results demonstrated that exposure to H2O2 induced the inflammation and apoptosis in these cells. Remarkably, anethole treatment effectively countered these inflammatory and apoptotic processes triggered by H2O2. Moreover, we identified the aquaporin 1 (AQP1) and protein kinase A (PKA) pathway as critical regulators of inflammation and apoptosis. H2O2 stimulation led to an increase in the AQP1 expression and a decrease in p-PKA-C, contributing to cartilage degradation. Conversely, anethole not only downregulated the AQP1 expression but also activated the PKA pathway, effectively suppressing cell inflammation and apoptosis. Furthermore, anethole also inhibited the enzymes responsible for cartilage degradation. In summary, our findings highlight the potential of anethole as a therapeutic agent for mitigating H2O2-induced inflammation and apoptosis in synovial cells, offering promising prospects for future RA treatments. © 2023 Wiley Periodicals LLC.

关键词： Cell death

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Analysis of discharge and area of the debris flow based on geological structural and rainfall levels in the slopes of Mount Abang, Kintamani

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IOP Conference Series: Materials science and engineering 2021年第2期1098卷

作者： I N Sinarta P I Wahyuni P Aryastana Department of Civil Engineering Universitas Warmadewa Jl. Terompong No.24 Denpasar Bali Indonesia International Ph.D. Program in Environmental Science and Technology (University System of Taiwan) National Central University Taiwan

Geological structural and rainfall intensity causes the parameters of soil shear strength to decline, especially in the surface layer of soil in volcanic rocks that have not experienced weathering. Study of geological structures and rainfall intensity against the hazard of a landslide was destroyed on the slopes of Mount Abang in the Abang Batudinding Village. Soil investigations using the Geoelectric method and sampling at 6 boreholes. Geological analysis on interpretation of slope outcrops, average rainfall analysis of the Thiessen Polygon method and analysis of design flood discharge using the NHSU method. Analysis results show the morph.logy of the slopes of Mount Abang with a slope of more than 40% and lithology of weathered volcanic rocks consisting of volcanic breccias, and tuffs breccias in conditions rather mild to moderate weathering, if have average effective rainfall for 10-50 years at 238 mm/day. The results also show that the peak discharge of debris flow was 98.639 m3/sec with the volume of debris flow 50072.85 m3 and the width of the range was 49.5 m. This debris flow volume indicated that residents around the river with a range of 49.5 m are at risk of debris flow sediment with a thickness of 1-1.5 m.

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Improvement of extracellular polysaccharides production from Cordyceps militaris immobilized alginate beads in repeated-batch fermentation

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LWT 2024年 193卷

作者： Hou, Shi-Jing Cheng, Kuan-Chen Lin, Shyh-Hsiang Hsiao, I-Lun Santoso, Shella Permatasari Singajaya, Steph.nie Chou, Yu-Chieh Lin, Shin-Ping Master Program in Food Safety Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan Institute of Biotechnology National Taiwan University 1 Roosevelt Rd. Sec. 4 Taipei10617 Taiwan Graduate Institute of Food Science and Technology National Taiwan University 1 Roosevelt Rd. Sec. 4 Taipei10617 Taiwan Department of Medical Research China Medical University Hospital China Medical University 91 Hsueh-Shih Rd. Taichung40402 Taiwan Department of Optometry Asia University 500 Lioufeng Rd. Wufeng Taichung41354 Taiwan School of Nutrition and Health Sciences Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan School of Food Safety Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan Department of Chemical Engineering Widya Mandala Surabaya Catholic University Kalijudan 37 East Java Surabaya60114 Indonesia Collaborative Research Center for Sustainable and Zero Waste Industries Kalijudan 37 East Java Surabaya60114 Indonesia Ph.D. Program in Drug Discovery and Development Industry Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan Research Center of Biomedical Device Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan TMU Research Center for Digestive Medicine Taipei Medical University 250 Wu-Hsing Street Taipei11031 Taiwan

Cordyceps militaris (C. militaris) is a unique medicinal fungus of the genus Cordyceps. It has high economic value due to various biological functions from the extracellular polysaccharides (EPSs) it produces. The aim of this study was to establish a mycelium-immobilization system for EPS production in a bubble column system. First, EPS production was optimized by 90.2% (from 0.72 to 1.37 g/L) using response surface methodology under an alginate-immobilized mycelium system with 6 days of cultivation. The highest EPS production was obtained (5.3 g/L) in a flask system through elongation to 15 days of cultivation. EPS production subsequently further increased to 10.42 g/L utilizing a bubble column reactor. Furthermore, the system can be reused for at least three rounds. In the EPS characteristics analysis, the produced EPSs were mainly composed of glucose and galactose. They presented strong antibacterial activity against Staph.lococcus aureus. In terms of antioxidant activity, respective the EPS concentration that caused 50% scavenging of dPph.and ABTS free radicals values (IC50) were 4.65 and 7.92 mg/mL. In summary, these findings should be helpful for establishing a suitable industrial fermentation system for C. militaris and can be studied in the food and medical industries in future work. © 2024 The Authors

关键词： Mycelium

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Enhanced exopolysaccharide production of Cordyceps militaris via mycelial cell immobilization on plastic composite support in repeated-batch fermentation

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International Journal of Biological Macromolecules 2023年第1期250卷 126267页

作者： Lin, Shin-Ping Sung, Ting-Hsuan Angkawijaya, Artik Elisa Go, Alchris Woo Hsieh, Chang-Wei Hsu, Hsien-Yi Santoso, Shella Permatasari Cheng, Kuan-Chen School of Food Safety Taipei Medical University #250 Wuxing Street Xinyi Dist. Taipei11042 Taiwan Research Center of Biomedical Device Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan TMU Research Center for Digestive Medicine Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan Ph.D. Program in Drug Discovery and Development Industry Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan Taiwan Institute of Food Science and Technology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan Institute of Food Science and Technology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan School of Nutrition and Health Sciences Taipei Medical University #250 Wu-Hsing Street Taipei11031 Taiwan Center for Sustainable Resource Science RIKEN Yokohama230-0045 Japan Department of Chemical Engineering National Taiwan University of Science and Technology #43 Sec. 4 Keelung Rd Taipei10607 Taiwan Department of Food Science and Biotechnology National Chung Hsing University South Dist. Taichung City40227 Taiwan Department of Medical Research China Medical University Hospital North Dist. Taichung City404333 Taiwan Taiwan Institute of Biotechnology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan School of Energy and Environment Department of Materials Science and Engineering City University of Hong Kong Kowloon Tong Hong Kong Shenzhen Research Institute of City University of Hong Kong Shenzhen518057 China Department of Chemical Engineering Widya Mandala Surabaya Catholic University Kalijudan 37 Surabaya60114 Indonesia Collaborative Research Center for Zero Waste and Sustainability Jl. Kalijudan 37 East Java Surabaya60114 Indonesia Institute of Biotechnology National Taiwan University #1 Sec. 4 Roosevelt Rd. Taipei10617 Taiwan Department of Medical Research China Medical University Hospital China Medical University 91 Hsueh-Shih Road Taichung40

Repeated-batch fermentation with fungal mycelia immobilized in plastic composite support (PCS) eliminates the lag ph.se during fermentation and improves metabolite productivity. The strategy is implemented herein, and a novel modified PCS is developed to enhance exopolysaccharide (EPS) production from the medicinal fungus Cordyceps militaris. A modified PCS (SYE + PCS) was made by compositing polypropylene (PP) with a nutrient mixture containing soybean hull, peptone, yeast extract, and minerals (SYE+). The use of SYE + PCS has consistent cell productivity throughout the multiple fermentation cycles, which resulted in a more higher cell productivity after second batch compared to unmodified PCS. The cell grown on SYE + PCS also generates a higher yield of EPS (3.36, 6.93, and 5.72 g/L in the first, second, and third fermentation cycles, respectively) up to three-fold higher than the cell immobilized on unmodified PCS. It is also worth noting that the EPS from mycelium grown on SYE + PCS contains up to 2.3-fold higher cordycepin than those on unmodified PCS. The presence of nutrients in SYE + PCS also affects the hydroph.bicity and surface roughness of the PC, improving mycelial cell adhesion. This study also provides a preliminary antioxidant activity assessment of EPS from immobilized C. militaris grown with SYE + PCS. © 2023

关键词： Mycelium

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