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Katyal M, Singh R, Mahajan R, Sharma A, Gupta R, Aggarwal NK, Yadav A. Bacterial cellulose: Nature's greener tool for industries. Biotechnol Appl Biochem 2023; 70:1629-1640. [PMID: 36964948 DOI: 10.1002/bab.2460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 03/03/2023] [Indexed: 03/27/2023]
Abstract
Bacteria are considered mini chemical factories that help us in providing a wide range of products for various purposes. These days, bacterial cellulose (BC) is getting attention by researchers due to its quality, eco-friendly nature, and excellent physical-mechanical qualities. It is being used in the fabrication of nanocomposites. Its nanocomposites can be used in various industries, including medicine, food, leather, textiles, environment, electronics, and cosmetics. This area of research is emerging and still in its infancy stage, as new applications are still coming up. Most of the work on BC has been done during the last two decades and serious inputs are required in this direction in order to make the production process commercially viable and ultimately the application part. Biowastes, such as fruits and vegetables wastes, can be used as a cost-effective medium to minimize the cost for large-scale production of BC-based nanocomposites thus will valorize the biowaste material into a valuable product. Using biowaste as media will also aid in better waste management along with reduction in detrimental environmental effects. This review will help the readers to understand the potential applications of BC and its nanocomposites as well as their vital role in our daily lives.
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Affiliation(s)
- Moniya Katyal
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Rakshanda Singh
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ritu Mahajan
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Anurekha Sharma
- Department of Electronic Science, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ranjan Gupta
- Department of Biochemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Neeraj K Aggarwal
- Department of Microbiology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Anita Yadav
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
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Dechojarassri D, Okada T, Tamura H, Furuike T. Evaluation of Cytotoxicity of Hyaluronic Acid/Chitosan/Bacterial Cellulose-Based Membrane. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5189. [PMID: 37512462 PMCID: PMC10383227 DOI: 10.3390/ma16145189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023]
Abstract
Novel wound dressing materials are required to non-cytotoxic with a viable cell ratio of above 92%. Herein, the cytotoxicity of hyaluronic acid/chitosan/bacterial cellulose-based (BC(CS/HA)) membranes are evaluated and compared to that of alginate/chitosan/bacterial cellulose-based (BC(CS/Alg)) membranes was investigated. Multilayer membranes with up to ten CS/HA or CS/Alg layers were prepared using the layer-by-layer (LBL) method. Scanning electron microscopy showed that the diameters of the fibers in the BC(CS/Alg) and BC(CS/HA) membranes were larger than those in a BC membrane. The cytotoxicity was analyzed using BALB-3T3 clone A31 cells (mouse fibroblasts, 1 × 104 cells/well). The BC(CS/HA)5 and BC(CS/HA)10 membranes exhibited high biocompatibility, with the cell viabilities of 94% and 87% at 5 d, respectively, compared to just 82% for the BC(CS/Alg)5 and BC(CS/Alg)10 membranes with same numbers of layers. These results suggested that BC(CS/HA)5 is a promising material for wound dressings.
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Affiliation(s)
- Duangkamol Dechojarassri
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
| | - Tomoki Okada
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - Hiroshi Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
| | - Tetsuya Furuike
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan
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Hamsan MH, Abdul Halim N, Demon SZN, Sa'aya NSN, Kadir MFZ, Abidin ZHZ, Ahmad Poad N, Abu Kasim NF, Razali NAM, Aziz SB, Ahmad KA, Miskon A, Nor NM. SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology. Heliyon 2022; 8:e11048. [PMID: 36281392 PMCID: PMC9587280 DOI: 10.1016/j.heliyon.2022.e11048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/18/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022] Open
Abstract
Bacterial Cellulose (BC) derived from local market or symbiotic culture of bacteria and yeast (SCOBY) was employed as the polymer matrix for hydroxyl multi-walled carbon nanotube (MWCNT-OH)-based electrochemical double-layer capacitor (EDLC). Chitosan (CS)-sodium iodide (NaI)-glycerol (Gly) electrolyte systems were used as the polymer electrolyte. CS-NaI-Gly electrolyte possesses conductivity, potential stability and ionic transference number of (1.20 ± 0.26) × 10-3 S cm-2, 2.5 V and 0.99, respectively. For the electrodes, MWCNT-OH was observed to be well dispersed in the matrix of BC which was obtained via FESEM analysis. The inclusion of MWCNT-OH reduced the crystallinity of the BC polymeric structure. From EIS measurement, it was verified that the presence of MWCNT-OH decreased the electron transfer resistance of BC-based electrodes. Cyclic voltammetry (CV) showed that the shape of the CV plots changed to a rectangular-like shape plot as more MWCNT were added, thus verifying the capacitive behavior. Various amount of MWCNT-OH was used in the fabrication of the EDLC where it was discovered that more MWCNT-OH leads to a better EDLC performance. The EDLC was tested for 5000 complete charge-discharge cycles. The optimum performance of this low voltage EDLC was obtained with 0.1 g MWCNT where the average specific capacitance was 8.80 F g-1. The maximum power and energy density of the fabricated EDLC were 300 W kg-1 and 1.6 W h kg-1, respectively.
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Affiliation(s)
- Muhamad Hafiz Hamsan
- Department of Physics, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia
| | - Norhana Abdul Halim
- Department of Physics, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia,Corresponding author.
| | - Siti Zulaikha Ngah Demon
- Department of Physics, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia,Centre for Tropicalization, National Defence University of Malaysia, Sungai Besi Camp, Sungai Besi, 57000 Kuala Lumpur, Malaysia
| | - Nurul Syahirah Nasuha Sa'aya
- Faculty of Defence Science & Technology, National Defence University of Malaysia, Sg Besi Camp, Sungai Besi, Kuala Lumpur, Malaysia
| | - Mohd Fakhrul Zamani Kadir
- Physics Department, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia,University Malaya Centre for Ionic Liquids (UMCiL), Universiti Malaya, 50603 Kuala Lumpur, Malaysia
| | - Zul Hazrin Zainal Abidin
- Centre for Ionics Universiti Malaya (C.I.U.M.), Department of Physics, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Nursaadah Ahmad Poad
- Faculty of Defence Science & Technology, National Defence University of Malaysia, Sg Besi Camp, Sungai Besi, Kuala Lumpur, Malaysia
| | - Nurul Farhana Abu Kasim
- Faculty of Defence Science & Technology, National Defence University of Malaysia, Sg Besi Camp, Sungai Besi, Kuala Lumpur, Malaysia
| | - Nur Amira Mamat Razali
- Faculty of Defence Science & Technology, National Defence University of Malaysia, Sg Besi Camp, Sungai Besi, Kuala Lumpur, Malaysia
| | - Shujahadeen B. Aziz
- Hameed Majid Advanced Polymeric Materials Research Lab., Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government, Sulaimani 46001, Iraq,The Development Center for Research and Training (DCRT), University of Human Development, Kurdistan Region of Iraq, Sulaymaniyah 46001, Iraq
| | - Khairol Amali Ahmad
- Faculty of Engineering, National Defence University of Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Azizi Miskon
- Faculty of Engineering, National Defence University of Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Norazman Mohamad Nor
- Faculty of Engineering, National Defence University of Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
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Ho YS, Fahad Halim AFM, Islam MT. The Trend of Bacterial Nanocellulose Research Published in the Science Citation Index Expanded From 2005 to 2020: A Bibliometric Analysis. Front Bioeng Biotechnol 2022; 9:795341. [PMID: 35111736 PMCID: PMC8801885 DOI: 10.3389/fbioe.2021.795341] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/27/2021] [Indexed: 11/13/2022] Open
Abstract
To gain insight into the trend of bacterial nanocellulose research, a bibliometric analysis was performed using the Science Citation Index Expanded database from 2005 to 2020. The study concentrated on the publication's performance in terms of annual outputs and citations, mainstream journals, categories of the Web of Sciences, leading countries, prominent institutions, and trends in research. Current research priorities and future trends were analyzed after summarizing the most commonly used keywords extracted from words in the paper title analysis, authors' keyword analysis, and KeyWords Plus. The findings revealed that the annual output in the form of scholarly articles on bacterial nanocellulose research steadily increased during the first quartile of the study period, followed by a very rapid increase in the last five-years of the study. Increasing mechanical strength would remain the main future focus of bacterial nanocellulose research to create its scope in different field of applications.
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Affiliation(s)
- Yuh-Shan Ho
- Trend Research Centre, Asia University, Taichung, Taiwan
| | | | - Mohammad Tajul Islam
- Department of Textile Engineering, Ahsanullah University of Science and Technology, Dhaka, Bangladesh
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R R, Philip E, Thomas D, Madhavan A, Sindhu R, Binod P, Varjani S, Awasthi MK, Pandey A. Bacterial nanocellulose: engineering, production, and applications. Bioengineered 2021; 12:11463-11483. [PMID: 34818969 PMCID: PMC8810168 DOI: 10.1080/21655979.2021.2009753] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 11/28/2022] Open
Abstract
Bacterial nanocellulose (BNC) has been emerging as a biomaterial of considerable significance in a number of industrial sectors because of its remarkable physico-chemical and biological characteristics. High capital expenses, manufacturing costs, and a paucity of some well-scalable methods, all of which lead to low BNC output in commercial scale, are major barriers that must be addressed. Advances in production methods, including bioreactor technologies, static intermittent, and semi-continuous fed batch technologies, and innovative outlay substrates, may be able to overcome the challenges to BNC production at the industrial scale. The novelty of this review is that it highlights genetic modification possibilities in BNC production to overcome existing impediments and open up viable routes for large-scale production, suitable for real-world applications. This review focuses on various production routes of BNC, its properties, and applications, especially the major advancement in food, personal care, biomedical and electronic industries.
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Affiliation(s)
- Reshmy R
- Post Graduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, India
| | - Eapen Philip
- Post Graduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, India
| | - Deepa Thomas
- Post Graduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, India
| | - Aravind Madhavan
- Rajiv Gandhi Center for Biotechnology, Thiruvananthapuram, India
| | - Raveendran Sindhu
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum, India
| | - Sunita Varjani
- Paryavaran Bhavan, Gujarat Pollution Control Board, Gandhinagar, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A & F University, Yangling, China
| | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, India
- Centre for Innovation and Translational Research, CSIR- Indian Institute for Toxicology Research, Lucknow, India
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Algal-based polysaccharides as polymer electrolytes in modern electrochemical energy conversion and storage systems: A review. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2020.100023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Sabrina Q, Ratri CR, Hardiansyah A, Lestariningsih T, Subhan A, Rifai A, Yudianti R, Uyama H. Preparation and characterization of nanofibrous cellulose as solid polymer electrolyte for lithium-ion battery applications. RSC Adv 2021; 11:22929-22936. [PMID: 35480471 PMCID: PMC9034343 DOI: 10.1039/d1ra03480d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/15/2021] [Indexed: 11/28/2022] Open
Abstract
A novel bacterial cellulose (BC)-based nanofiber material has been utilized as an ionic template for the battery system solid polymer electrolyte (SPE). The effect of drying techniques such as oven and freeze-drying on the gel-like material indicate differences in both visual and porous structures. The morphological structure of BC after oven and freeze-drying observed by field-emission scanning electron microscopy indicates that a more compact porous structure is found in freeze-dried BC than oven-dried BC. After the BC-based nanofiber immersion process into lithium hexafluorophosphate solution (1.0 M), the porous structure becomes a host for Li-ions, demonstrated by significant interactions between Li-ions from the salt and the C[double bond, length as m-dash]O groups of freeze-dried BC as shown in the infrared spectra. X-ray diffraction analysis of freeze-dried BC after immersion in electrolyte solution shows a lower degree of crystallinity, thus allowing an increase in Li-ion movement. As a result, freeze-dried BC has a better ionic conductivity of 2.71 × 10-2 S cm-1 than oven-dried BC, 6.00 × 10-3 S cm-1. Freeze-dried BC as SPE also shows a larger electrochemical stability window around 3.5 V, reversible oxidation/reduction peaks at 3.29/3.64 V, and an initial capacity of 18 mAHr g-1 at 0.2C. The high tensile strength of the freeze-dried BC membrane of 334 MPa with thermal stability up to 250 °C indicates the potential usage of freeze-dried BC as flexible SPE to dampen ionic leakage transfer.
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Affiliation(s)
- Qolby Sabrina
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Christin Rina Ratri
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Andri Hardiansyah
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Titik Lestariningsih
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Achmad Subhan
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Abdulloh Rifai
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Rike Yudianti
- Research Center for Physics, Indonesian Institute of Sciences Kawasan Puspiptek Serpong Gd. 442 Tangerang Selatan Banten 15314 Indonesia
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
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Kai J, Xuesong Z. Preparation, Characterization, and Cytotoxicity Evaluation of Zinc Oxide–Bacterial Cellulose–Chitosan Hydrogels for Antibacterial Dressing. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000257] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiang Kai
- School of Light Industry and Engineering South China University of Technology Guangzhou 510000 China
| | - Zhou Xuesong
- State Key Laboratory of Pulp and Paper School of Light Industry and Engineering South China University of Technology Guangzhou 510000 China
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OGINO M, KOTATHA D, TORII Y, SHINOMIYA K, UCHIDA S, FURUIKE T, TAMURA H, ISHIKAWA M. Preparation and Electrochemical Performance of Chitosan-based Gel Polymer Electrolyte Containing Ionic Liquid for Non-aqueous Electric Double Layer Capacitor. ELECTROCHEMISTRY 2020. [DOI: 10.5796/electrochemistry.20-63009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Mayuko OGINO
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Ditpon KOTATHA
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Yoshiki TORII
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Keito SHINOMIYA
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Satoshi UCHIDA
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Tetsuya FURUIKE
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Hiroshi TAMURA
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
| | - Masashi ISHIKAWA
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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Synthesis and characterization of modified chitosan membranes for applications in electrochemical capacitor. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134632] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wang CH, Doan CT, Nguyen VB, Nguyen AD, Wang SL. Reclamation of Fishery Processing Waste: A Mini-Review. Molecules 2019; 24:E2234. [PMID: 31207992 PMCID: PMC6630555 DOI: 10.3390/molecules24122234] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 02/07/2023] Open
Abstract
: Seafood such as fish, shellfish, and squid are a unique source of nutrients. However, many marine processing byproducts, such as viscera, shells, heads, and bones, are discarded, even though they are rich sources of structurally diverse bioactive nitrogenous components. Based on emerging evidence of their potential health benefits, these components show significant promise as functional food ingredients. Fish waste components contain significant levels of high-quality protein, which represents a source for biofunctional peptide mining. The chitin contained in shrimp shells, crab shells, and squid pens may also be of value. The components produced by bioconversion are reported to have antioxidative, antimicrobial, anticancer, antihypertensive, antidiabetic, and anticoagulant activities. This review provides an overview of the extraordinary potential of processing fish and chitin-containing seafood byproducts via chemical procedures, enzymatic and fermentation technologies, and chemical modifications, as well as their applications.
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Affiliation(s)
- Chi-Hao Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan; (C.-H.W.); (C.T.D.)
| | - Chien Thang Doan
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan; (C.-H.W.); (C.T.D.)
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam;
| | - Van Bon Nguyen
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam;
| | - Anh Dzung Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam;
| | - San-Lang Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan; (C.-H.W.); (C.T.D.)
- Life Science Development Center, Tamkang University, New Taipei City 25137, Taiwan
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Preparation and Characterization of Electrospun Gelatin Nanofibers for Use as Nonaqueous Electrolyte in Electric Double-Layer Capacitor. JOURNAL OF NANOTECHNOLOGY 2019. [DOI: 10.1155/2019/2501039] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A novel nanofibrous gel electrolyte was prepared via gelatin electrospinning for use as a nonaqueous electrolyte in electric double-layer capacitors (EDLCs). An electrospinning technique with a 25 wt% gelatin solution was applied to produce gelatin electrospun (GES) nanofiber electrolytes. Structural analysis of the GES products showed a clearly nanofibrous structure with fiber diameters in the 306.2–428.4 nm range and exhibiting high thermal stability, high tensile strength, and a stable form of nanofibrous structure after immersion in 1-ethyl-3-methylimidazolium tetrafluoroborate (EMImBF4). After testing over a range of spinning times, GES electrolytes that were produced at 25 min (GES-25) had a suitable thickness for the assembly of EDLC with the optimized tensile properties and were used to fabricate EDLC test cells with EMImBF4. These test cells were compared to those with pure EMImBF4 and a separator as an electrolyte. The electrochemical properties of the test cells were characterized by charge-discharge testing, discharge capacitance, and alternative current (AC) impedance measurements. AC impedance measurements showed that the test cell with the GES-25/EMImBF4 gel electrolyte showed slightly poorer contact with the electrode when compared to that with pure EMImBF4, whereas exhibited comparable IR drop and discharge capacitance (calculated capacitance retention was 56.6%). The results demonstrated that this novel gel electrolyte can be used as a nonaqueous electrolyte in order to improve the safety in EDLCs.
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Tran TN, Doan CT, Nguyen VB, Nguyen AD, Wang SL. The isolation of chitinase from Streptomyces thermocarboxydus and its application in the preparation of chitin oligomers. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3639-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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