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El-Gendy NM, Amer A, Ibrahim HA, Abou-Okada M. Microbiological quality assessment of Clarias gariepinus, Bagrus bajad, and Pangasianodon hypophthalmus fillets. Sci Rep 2024; 14:13305. [PMID: 38858383 PMCID: PMC11164913 DOI: 10.1038/s41598-024-62730-8] [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: 12/17/2023] [Accepted: 05/21/2024] [Indexed: 06/12/2024] Open
Abstract
In this study, 80 catfish fillets were randomly collected from Egyptian local markets and retailers. The samples included 20 African catfish (Clarias gariepinus), 20 bayad (Bagrus bajad), and 40 pangasius catfish (Pangasianodon hypophthalmus) fillets. Pangasianodon hypophthalmus fillet samples were divided into 20 white basa and 20 red basa fillets. We conducted a microbiological analysis of catfish fillet samples, evaluating mesophilic aerobic bacteria, psychrophilic aerobic bacteria, H2S-producing bacteria, Staphylococcus spp., Enterobacteriaceae, Coliforms, and fecal Coliform counts. Additionally, we identified the existence of Salmonella spp., Vibrio spp., Yersinia spp., Escherichia spp., Aeromonas spp., and Pseudomonas spp. in the catfish fillet samples. In our study, the psychrophilic bacterial counts in Bagrus bajad (5.21 log CFU/g) were found to be higher compared to the counts in Clarias gariepinus (4.31 log CFU/g) and Pangasianodon hypophthalmus (3.89-4.7 log CFU/g). The fecal Coliform in Clarias gariepinus fillets was significantly higher than in other catfish fillets. We isolated Escherichia coli, Escherichia fergusonii, Aeromonas hydrophila, and Pseudomonas luteola from the catfish fillets, while no Salmonella spp., Vibrio spp., or Yersinia spp. were detected. These isolates were identified using 16S rRNA sequencing and phylogenetic analysis. Furthermore, ten Escherichia spp. were serologically identified, revealing that O26 and O78 were the most commonly occurring serotypes. This study highlights the microbiological analysis conducted on catfish fillets and concludes that the fillet samples from these catfish were of superior quality and deemed acceptable for human consumption.
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Affiliation(s)
- Noha M El-Gendy
- Department of Food Hygiene, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 21526, Egypt
| | - Amr Amer
- Department of Food Hygiene, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 21526, Egypt
| | - Hossam A Ibrahim
- Department of Food Hygiene, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 21526, Egypt
| | - Mahmoud Abou-Okada
- Department of Aquatic Animal Medicine and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
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2
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Vanaraj R, Arumugam B, Mayakrishnan G, Kim IS, Kim SC. A Review on Electrospun Nanofiber Composites for an Efficient Electrochemical Sensor Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:6705. [PMID: 37571489 PMCID: PMC10422532 DOI: 10.3390/s23156705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023]
Abstract
The present review article discusses the elementary concepts of the sensor mechanism and various types of materials used for sensor applications. The electrospinning method is the most comfortable method to prepare the device-like structure by means of forming from the fiber structure. Though there are various materials available for sensors, the important factor is to incorporate the functional group on the surface of the materials. The post-modification sanction enhances the efficiency of the sensor materials. This article also describes the various types of materials applied to chemical and biosensor applications. The chemical sensor parts include acetone, ethanol, ammonia, and CO2, H2O2, and NO2 molecules; meanwhile, the biosensor takes on glucose, uric acid, and cholesterol molecules. The above materials have to be sensed for a healthier lifestyle for humans and other living organisms. The prescribed review articles give a detailed report on the Electrospun materials for sensor applications.
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Affiliation(s)
- Ramkumar Vanaraj
- School of Chemical Engineering, Yeungnam University, Gyeonsan 38541, Republic of Korea; (R.V.); (B.A.)
| | - Bharathi Arumugam
- School of Chemical Engineering, Yeungnam University, Gyeonsan 38541, Republic of Korea; (R.V.); (B.A.)
| | - Gopiraman Mayakrishnan
- Nano Fusion Technology Research Group, Division of Molecules and Polymers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda 386-8567, Nagano, Japan;
| | - Ick Soo Kim
- Nano Fusion Technology Research Group, Division of Molecules and Polymers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda 386-8567, Nagano, Japan;
| | - Seong Cheol Kim
- School of Chemical Engineering, Yeungnam University, Gyeonsan 38541, Republic of Korea; (R.V.); (B.A.)
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Yunus G, Singh R, Raveendran S, Kuddus M. Electrochemical biosensors in healthcare services: bibliometric analysis and recent developments. PeerJ 2023; 11:e15566. [PMID: 37397018 PMCID: PMC10312160 DOI: 10.7717/peerj.15566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/24/2023] [Indexed: 07/04/2023] Open
Abstract
Biosensors are nowadays being used in various fields including disease diagnosis and clinical analysis. The ability to detect biomolecules associated with disease is vital not only for accurate diagnosis of disease but also for drug discovery and development. Among the different types of biosensors, electrochemical biosensor is most widely used in clinical and health care services especially in multiplex assays due to its high susceptibility, low cost and small in size. This article includes comprehensive review of biosensors in medical field with special emphasis on electrochemical biosensors for multiplex assays and in healthcare services. Also, the publications on electrochemical biosensors are increasing rapidly; therefore, it is crucial to be aware of any latest developments or trends in this field of research. We used bibliometric analyses to summarize the progress of this research area. The study includes global publication counts on electrochemical biosensors for healthcare along with various bibliometric data analyses by VOSviewer software. The study also recognizes the top authors and journals in the related area, and determines proposal for monitoring research.
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Affiliation(s)
- Ghazala Yunus
- Department of Basic Science, University of Hail, Hail, Saudi Arabia
| | - Rachana Singh
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow, Uttar Pradesh, India
| | - Sindhu Raveendran
- Department of Food Technology, TKM Institute of Technology, Kollam, Kerala, India
| | - Mohammed Kuddus
- Department of Biochemistry, College of Medicine, University of Ha’il, Hail, Saudi Arabia
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4
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Abedi-Firoozjah R, Salim SA, Hasanvand S, Assadpour E, Azizi-Lalabadi M, Prieto MA, Jafari SM. Application of smart packaging for seafood: A comprehensive review. Compr Rev Food Sci Food Saf 2023; 22:1438-1461. [PMID: 36717376 DOI: 10.1111/1541-4337.13117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/29/2022] [Accepted: 01/16/2023] [Indexed: 02/01/2023]
Abstract
Nowadays, due to the changes in lifestyle and great interest of consumers in a healthy life, people have started increasing their seafood consumption. But due to their short shelf life, experts are looking for a new packaging called smart packaging (SMP) for seafood. There are different indicators/sensors in SMP; one of the effective indices is time-temperature, which can show consumers the best time of using seafood based on their shelf life and experienced temperature. Another one is radio-frequency identification (RFID) that is a transmission device that represents a separate form of the electronic information-based SMP systems. RFID does not belong to any of the categories of markers or sensors; it is an auto recognition system that applies cordless sensors to indicate segments and collect real-time information without manual interposition. This review covers the use of SMP in all marine foods, including fish, due to its high consumption and high content of polyunsaturated fatty acids, eicosapentaenoic acid (C20:5n-3) and docosahexaenoic acid (C22:6n-3), which are the considerable factors of n-3 polyunsaturated fatty acids for human.
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Affiliation(s)
- Reza Abedi-Firoozjah
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Shamimeh Azimi Salim
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sara Hasanvand
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Elham Assadpour
- Food Industry Research Co., Gorgan, Iran
- Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Maryam Azizi-Lalabadi
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Miguel A Prieto
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, Ourense, Spain
| | - Seid Mahdi Jafari
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, Ourense, Spain
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
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5
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García MR, Ferez-Rubio JA, Vilas C. Assessment and Prediction of Fish Freshness Using Mathematical Modelling: A Review. Foods 2022; 11:foods11152312. [PMID: 35954077 PMCID: PMC9368035 DOI: 10.3390/foods11152312] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 12/10/2022] Open
Abstract
Fish freshness can be considered as the combination of different nutritional and organoleptic attributes that rapidly deteriorate after fish capture, i.e., during processing (cutting, gutting, packaging), storage, transport, distribution, and retail. The rate at which this degradation occurs is affected by several stress variables such as temperature, water activity, or pH, among others. The food industry is aware that fish freshness is a key feature influencing consumers’ willingness to pay for the product. Therefore, tools that allow rapid and reliable assessment and prediction of the attributes related to freshness are gaining relevance. The main objective of this work is to provide a comprehensive review of the mathematical models used to describe and predict the changes in the key quality indicators in fresh fish and shellfish during storage. The work also briefly describes such indicators, discusses the most relevant stress factors affecting the quality of fresh fish, and presents a bibliometric analysis of the results obtained from a systematic literature search on the subject.
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Affiliation(s)
- Míriam R. García
- Research Group on Biosystems and Bioprocess Engineering (Bio2eng), IIM-CSIC, 36208 Vigo, Spain; (M.R.G.); (J.A.F.-R.)
| | - Jose Antonio Ferez-Rubio
- Research Group on Biosystems and Bioprocess Engineering (Bio2eng), IIM-CSIC, 36208 Vigo, Spain; (M.R.G.); (J.A.F.-R.)
- Research Group on Microbiology and Quality of Fruit and Vegetables, CEBAS-CSIC, 30100 Murcia, Spain
| | - Carlos Vilas
- Research Group on Biosystems and Bioprocess Engineering (Bio2eng), IIM-CSIC, 36208 Vigo, Spain; (M.R.G.); (J.A.F.-R.)
- Correspondence:
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ALKURAIEEF AN, ALSUHAIBANI AM, ALSHAWI AH, ALFARIS NA, ALJABRYN DH. Chemical and microbiological quality of imported chilled, frozen, and locally cultured fish in Saudi Arabian markets. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.52520] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Mohd Asri MA, Nordin AN, Ramli N. Low-cost and cleanroom-free prototyping of microfluidic and electrochemical biosensors: Techniques in fabrication and bioconjugation. BIOMICROFLUIDICS 2021; 15:061502. [PMID: 34777677 PMCID: PMC8577868 DOI: 10.1063/5.0071176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/22/2021] [Indexed: 05/18/2023]
Abstract
Integrated microfluidic biosensors enable powerful microscale analyses in biology, physics, and chemistry. However, conventional methods for fabrication of biosensors are dependent on cleanroom-based approaches requiring facilities that are expensive and are limited in access. This is especially prohibitive toward researchers in low- and middle-income countries. In this topical review, we introduce a selection of state-of-the-art, low-cost prototyping approaches of microfluidics devices and miniature sensor electronics for the fabrication of sensor devices, with focus on electrochemical biosensors. Approaches explored include xurography, cleanroom-free soft lithography, paper analytical devices, screen-printing, inkjet printing, and direct ink writing. Also reviewed are selected surface modification strategies for bio-conjugates, as well as examples of applications of low-cost microfabrication in biosensors. We also highlight several factors for consideration when selecting microfabrication methods appropriate for a project. Finally, we share our outlook on the impact of these low-cost prototyping strategies on research and development. Our goal for this review is to provide a starting point for researchers seeking to explore microfluidics and biosensors with lower entry barriers and smaller starting investment, especially ones from low resource settings.
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Affiliation(s)
- Mohd Afiq Mohd Asri
- Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
| | - Anis Nurashikin Nordin
- Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
- Author to whom correspondence should be addressed:
| | - Nabilah Ramli
- Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
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8
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Anithaa AC, Mayil Vealan SB, Veerapandi G, Sekar C. Highly efficient non-enzymatic electrochemical determination of histamine based on tungsten trioxide nanoparticles for evaluation of food quality. J APPL ELECTROCHEM 2021. [DOI: 10.1007/s10800-021-01608-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Optical bioelectronic nose of outstanding sensitivity and selectivity toward volatile organic compounds implemented with genetically engineered bacteriophage: Integrated study of multi-scale computational prediction and experimental validation. Biosens Bioelectron 2021; 177:112979. [PMID: 33477031 DOI: 10.1016/j.bios.2021.112979] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/24/2020] [Accepted: 01/03/2021] [Indexed: 12/27/2022]
Abstract
Genetic engineering of a bacteriophage is a promising way to develop a highly functional biosensor. Almost countless configurational degree of freedom in the manipulation, considerable uncertainty and cost involved with the approach, however, have been huddles for the objective. In this paper, we demonstrate rapidly responding optical biosensor with high selectivity toward gaseous explosives with genetically engineered phages. The sensors are equipped with peptide sequences in phages optimally interacting with the volatile organic compounds (VOCs) in visible light regime. To overcome the conventional issues, we use extensive utilization of empirical calculations to construct a large database of 8000 tripeptides and screen the best for electronic nose sensing performance toward nine VOCs belonging to three chemical classes. First-principles density functional theory (DFT) calculations unveil underlying correlations between the chemical affinity and optical property change on an electronic band structure level. The computational outcomes are validated by in vitro experimental design and testing of multiarray sensors using genetically modified phage implemented with five selected tripeptide sequences and wild-type phages. The classification success rates estimated from hierarchical cluster analysis are shown to be very consistent with the calculations. Our optical biosensor demonstrates a 1 ppb level of sensing resolution for explosive VOCs, which is a substantial improvement over conventional biosensor. The systematic interplay of big data-based computational prediction and in situ experimental validation can provide smart design principles for unconventionally outstanding biosensors.
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10
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Batch investigation on volumetric, acoustic and calorimetric properties for binary mixtures of aniline + (diethanolamine, triethanolamine, butylamine and hexylamine) from experimental and theoretical point of view. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Erol E, Yildirim E, Cete S. Construction of biosensor for hypoxanthine determination by immobilization of xanthine oxidase and uricase in polypyrrole-paratoluenesulfonate film. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04715-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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12
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Heavy metal levels and changes in trimethylamine content of smoked fish and meat under different storage conditions. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2844-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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13
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Kurbanoglu S, Erkmen C, Uslu B. Frontiers in electrochemical enzyme based biosensors for food and drug analysis. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115809] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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Kim WG, Zueger C, Kim C, Wong W, Devaraj V, Yoo HW, Hwang S, Oh JW, Lee SW. Experimental and numerical evaluation of a genetically engineered M13 bacteriophage with high sensitivity and selectivity for 2,4,6-trinitrotoluene. Org Biomol Chem 2020; 17:5666-5670. [PMID: 30973549 DOI: 10.1039/c8ob03075h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Selective and sensitive detection of desired targets is very critical in sensor design. Here, we report a genetically engineered M13 bacteriophage-based sensor system evaluated by quantum mechanics (QM) calculations. Phage display is a facile way to develop the desired peptide sequences, but the resulting sequences can be imperfect peptides for binding of target molecules. A TNT binding peptide (WHW) carrying phage was self-assembled to fabricate thin films and tested for the sensitive and selective surface plasmon resonance-based detection of TNT molecules at the 500 femtomole level. SPR studies performed with the WHW peptide and control peptides (WAW, WHA, AHW) were well-matched with those of the QM calculations. Our combined method between phage engineering and QM calculation will significantly enhance our ability to design selective and sensitive sensors.
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Affiliation(s)
- Won-Geun Kim
- Department of Nano Fusion Technology, Pusan National University, Busan, 609-735, South Korea.
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15
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Su X, Sutarlie L, Loh XJ. Sensors, Biosensors, and Analytical Technologies for Aquaculture Water Quality. RESEARCH (WASHINGTON, D.C.) 2020; 2020:8272705. [PMID: 32149280 PMCID: PMC7048950 DOI: 10.34133/2020/8272705] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 01/08/2020] [Indexed: 12/20/2022]
Abstract
In aquaculture industry, fish, shellfish, and aquatic plants are cultivated in fresh, salt, or brackish waters. The increasing demand of aquatic products has stimulated the rapid growth of aquaculture industries. How to effectively monitor and control water quality is one of the key concerns for aquaculture industry to ensure high productivity and high quality. There are four major categories of water quality concerns that affect aquaculture cultivations, namely, (1) physical parameters, e.g., pH, temperature, dissolved oxygen, and salinity, (2) organic contaminants, (3) biochemical hazards, e.g., cyanotoxins, and (4) biological contaminants, i.e., pathogens. While the physical parameters are affected by climate changes, the latter three are considered as environmental factors. In this review, we provide a comprehensive summary of sensors, biosensors, and analytical technologies available for monitoring aquaculture water quality. They include low-cost commercial sensors and sensor network setups for physical parameters. They also include chromatography, mass spectrometry, biochemistry, and molecular methods (e.g., immunoassays and polymerase chain reaction assays), culture-based method, and biophysical technologies (e.g., biosensors and nanosensors) for environmental contamination factors. According to the different levels of sophistication of various analytical techniques and the information they can provide (either fine fingerprint, highly accurate quantification, semiquantification, qualitative detection, or fast screening), we will comment on how they may be used as complementary tools, as well as their potential and gaps toward current demand of real-time, online, and/or onsite detection.
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Affiliation(s)
- Xiaodi Su
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way. Innovis #08-03, Singapore 138634
- Department of Chemistry, National University of Singapore, Block S8, Level 3, 3 Science Drive 3, Singapore 117543
| | - Laura Sutarlie
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way. Innovis #08-03, Singapore 138634
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way. Innovis #08-03, Singapore 138634
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16
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Preparation of bio-electrodes via Langmuir-Blodgett technique for pharmaceutical and waste industries and their biosensor application. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.124005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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De Magalhães CR, Schrama D, Fonseca F, Kuehn A, Morisset M, Ferreira SR, Gonçalves A, Rodrigues PM. Effect of EDTA enriched diets on farmed fish allergenicity and muscle quality; a proteomics approach. Food Chem 2019; 305:125508. [PMID: 31622806 DOI: 10.1016/j.foodchem.2019.125508] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 09/05/2019] [Accepted: 09/09/2019] [Indexed: 10/26/2022]
Abstract
Fish is one of the most common elicitors of food-allergic reactions worldwide. These reactions are triggered by the calcium-binding muscle protein β-parvalbumin, which was shown to have reduced immunoglobulin E (IgE)-binding capacity upon calcium depletion. This work aimed to reduce gilthead seabream allergenicity using diets supplemented with a calcium chelator. Three experimental feeds were tested, differing in ethylenediaminetetraacetic acid (EDTA) supplementation, and its effects on muscle and parvalbumin's IgE-reactivity were analyzed. Chromatographic determination of EDTA showed no accumulation in the muscle and sensory results demonstrated that the lowest concentration did not affect fish quality as edible fish. Proteomics revealed one protein related to muscle contraction with significantly different relative abundance. Immunoblot assays performed with fish-allergic patients sera indicated a 50% reduction in IgE-reactivity upon EDTA presence. These preliminary results provide the basis for the further development of a non-GMO approach to modulate fish allergenicity and improve safety of aquaculture fish.
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Affiliation(s)
| | - Denise Schrama
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal.
| | - Flávio Fonseca
- Instituto Federal de Educação, Ciência e Tecnologia do Amazonas - Campus Zona Leste, Av. Cosme Ferreira, 8045, Bairro Gilberto Mestrinho, 69086-475 Manaus, AM, Brazil.
| | - Annette Kuehn
- Luxembourg Institute of Health, Department of Infection and Immunity, 29, Rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg.
| | - Martine Morisset
- National Unit of Immunology and Allergology, Centre Hospitalier de Luxembourg, Luxembourg; Allergy Unit, Angers University Hospital, 4 Rue Larrey, 49993 Angers, France.
| | - Sara R Ferreira
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal.
| | - Amparo Gonçalves
- IPMA I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal.
| | - Pedro M Rodrigues
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal.
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18
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Thangaraj B, Solomon PR, Ranganathan S. Synthesis of Carbon Quantum Dots with Special Reference to Biomass as a Source - A Review. Curr Pharm Des 2019; 25:1455-1476. [DOI: 10.2174/1381612825666190618154518] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/11/2019] [Indexed: 11/22/2022]
Abstract
Quantum dots (QDs) have received much attention due to their extraordinary optical application in
medical diagnostics, optoelectronics and in energy storage devices. The most conventional QDs are based on
semiconductors that comprise heavy metals whose applications are limited due to toxicity and potential environmental
hazard. Of late, researchers are focusing on carbon-based quantum dots, which have recently emerged as a
new family of zero-dimensional nanostructured materials. They are spherical in shape with a size below 10 nm
and exhibit excitation-wavelength-dependent photoluminescence (PL). Carbon quantum dots (CQDs) have
unique optical, photoluminescence and electrochemical properties. They are environment-friendly with low toxicity
as compared to toxic heavy metal quantum dots. Generally, CQDs are derived from chemical precursor materials,
but recently researchers have focused their attention on the production of CQDs from waste biomass materials
due to the economic and environmental exigency. In this review, recent advances in the synthesis of CQDs
from waste biomass materials, functionalization and modulation of CQDs and their potential application of biosensing
are focused. This review also brings out some challenges and future perspectives for developing smart
biosensing gadgets based on CQDs.
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Affiliation(s)
- Baskar Thangaraj
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang -212013, Zhenjiang, China
| | - Pravin R. Solomon
- School of Chemical & Biotechnology, SASTRA-Deemed University, Thanjavur - 613401, Tamil Nadu, India
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Li C, Hao J, Wu K. Triethylamine-controlled Cu-BTC frameworks for electrochemical sensing fish freshness. Anal Chim Acta 2019; 1085:68-74. [PMID: 31522732 DOI: 10.1016/j.aca.2019.07.064] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 07/27/2019] [Accepted: 07/30/2019] [Indexed: 02/01/2023]
Abstract
The simultaneous determination of xanthine (XA) and hypoxanthine (HXA) has been proved to be a feasible approach for the assessment of fish freshness. In this study, copper(II) nitrate and 1,3,5-benzenetricarboxylic acid (H3BTC) were used as precursors to prepare various Cu-BTC frameworks with the addition of various amounts of triethylamine at room temperature. The characterization of X-ray diffraction, Fourier-transform infrared spectroscopy and Raman spectroscopy testified that the obtained materials are Cu-BTC frameworks. However, the amount of triethylamine had significant effects on the morphology, active response area and electron transfer ability of Cu-BTC frameworks. The oxidation behavior of XA and HXA demonstrated that the prepared Cu-BTC frameworks exhibited higher sensing activity, with greatly-enhanced oxidation signals. More importantly, the amount of triethylamine obviously affected the accumulation capacity and signal enhancement ability of Cu-BTCs toward XA and HXA, as confirmed from double potential step chronocoulometry. Based on the triethylamine-tuned signal amplification strategy of Cu-BTC frameworks, a highly-sensitive and simple electrochemical sensing system was developed for the assessment of fish freshness by simultaneous detection of XA and HXA. The developed sensing method was used in practical samples, and the results were validated by high-performance liquid chromatography.
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Affiliation(s)
- Caoling Li
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Junxing Hao
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Kangbing Wu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
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20
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Electrochemical investigation of the inhibition effect of carvacrol on xanthine oxidase activity merging with theoretical studies. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Barandun G, Soprani M, Naficy S, Grell M, Kasimatis M, Chiu KL, Ponzoni A, Güder F. Cellulose Fibers Enable Near-Zero-Cost Electrical Sensing of Water-Soluble Gases. ACS Sens 2019; 4:1662-1669. [PMID: 31066550 PMCID: PMC7007283 DOI: 10.1021/acssensors.9b00555] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/08/2019] [Indexed: 12/02/2022]
Abstract
We report an entirely new class of printed electrical gas sensors that are produced at near "zero cost". This technology exploits the intrinsic hygroscopic properties of cellulose fibers within paper; although it feels and looks dry, paper contains substantial amount of moisture, adsorbed from the environment, enabling the use of wet chemical methods for sensing without manually adding water to the substrate. The sensors exhibit high sensitivity to water-soluble gases (e.g., lower limit of detection for NH3 < 200 parts-per-billion) with a fast and reversible response. The sensors show comparable or better performance (especially at high relative humidity) than most commercial ammonia sensors at a fraction of their price (<$0.02 per sensor). We demonstrate that the sensors proposed can be integrated into food packaging to monitor freshness (to reduce food waste and plastic pollution) or implemented into near-field-communication tags to function as wireless, battery-less gas sensors that can be interrogated with smartphones.
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Affiliation(s)
- Giandrin Barandun
- Department
of Bioengineering, Imperial College London SW7 2AZ, London, United Kingdom
| | - Matteo Soprani
- Department
of Bioengineering, Imperial College London SW7 2AZ, London, United Kingdom
- Department
of Information Engineering University of
Brescia 25123, Brescia, Italy
- National
Institute of Optics National Research Council 25123, Brescia, Italy
| | - Sina Naficy
- Department
of Bioengineering, Imperial College London SW7 2AZ, London, United Kingdom
- School
of Chemical and Biomolecular Engineering The University of Sydney NSW 2006, Sydney, Australia
| | - Max Grell
- Department
of Bioengineering, Imperial College London SW7 2AZ, London, United Kingdom
| | - Michael Kasimatis
- Department
of Bioengineering, Imperial College London SW7 2AZ, London, United Kingdom
| | - Kwan Lun Chiu
- Department
of Bioengineering, Imperial College London SW7 2AZ, London, United Kingdom
| | - Andrea Ponzoni
- Department
of Information Engineering University of
Brescia 25123, Brescia, Italy
- National
Institute of Optics National Research Council 25123, Brescia, Italy
| | - Firat Güder
- Department
of Bioengineering, Imperial College London SW7 2AZ, London, United Kingdom
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22
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Olivares-Ferretti P, Hernandez K, Peredo-Parada M, Chavez V, Carmona E, Astuya A, Parodi J. Polyphenols obtained from Didymosphenia geminata (Lyngbye) Schmith altered the viability and proliferation of salmonids cells lines SHK-1 and CHSE-214. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 211:141-147. [PMID: 30981037 DOI: 10.1016/j.aquatox.2019.03.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 06/09/2023]
Abstract
Didymosphenia geminata (Lyngbye) Schmidt, also referred to as Didymo, is an invasive diatom that forms nuisance mats. Since it was first reported in our country in approximately 2010, Didymo has expanded and colonized different rivers in the Zona Austral region of Chile. Its biology and effects on ecosystems are still being studied because Didymo is an invasive algal mat that forms in a range of systems from oligotrophic austral rivers to more subtropical systems. We aimed to evaluate the viability of two salmonid cell lines, CHSE-214 and SHK-1 (somatic and embryonic cell lines, respectively), in dilutions of river water alone and in river water contaminated with Didymo or polyphenols extracted from Didymo under controlled conditions. We developed an artificial river system (2 aquariums/replicate) from five different rivers from the central area (Bio-Bio) and Patagonia area (Futaleufú) of Chile to maintain Didymo in the benthic phase. The Didymo populations were maintained for six months in the water from the rivers, after which samples were obtained. Following the extraction of polyphenols from the Didymo samples maintained in the artificial rivers, toxicity assays (10 assays) were performed to determine cell viability. Our results indicated that the CHSE-214 cells were highly sensitive to increasing concentrations of Didymo extracts. We observed a 50% reduction in cell viability after 24 h of exposure to a 0.01 V/V dilution, and this treatment further reduced the proliferative capacity by 70% after 120 h. The SHK-1 cells were less responsive, showing only a 20% decrease in viability at 24 h and a lower cell proliferation rate (45%) after 120 h, which remained higher than that of the CHSE-214 cells. We conclude that certain cell types are sensitive to Didymo in rivers, suggesting that there are chronic effects on several aquatic species following exposure to these diatom substances. These effects should be further studied using this laboratory model to understand the full impact of Didymo on river ecosystems.
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Affiliation(s)
- Pamela Olivares-Ferretti
- Center of Excellence in Translational Medicine (CEMT- BIOREN), Preclinical Sciences Department, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile; Doctoral Program in Sciences, Major in Applied Cellular and Molecular Biology, Universidad de La Frontera, Temuco, Chile
| | - Klaudia Hernandez
- Laboratorio Biología Celular y Molecular Aplicada, Facultad de Ciencias, Universidad Mayor, Temuco, Chile
| | - Matías Peredo-Parada
- Plataforma de Investigación en Ecohidrología y Ecohidráulica, EcoHyd Ltda, Chile
| | - Viviana Chavez
- Laboratorio de Investigación y Educación Tonalli Ltda, Chile
| | - Erico Carmona
- Laboratorio de Genotoxicología, Departamento de Procesos Industriales, Facultad de Ingeniería, Universidad Católica de Temuco, Chile
| | - Allisson Astuya
- Laboratory of Cell Culture and Marine Genomics, Marine Biotechnology Unit, Faculty of Natural and Oceanographic Sciences, University of Concepcion and Sur-Austral COPAS Program, University of Concepcion, Casilla 160-C, Concepción, Chile
| | - Jorge Parodi
- Laboratorio Biología Celular y Molecular Aplicada, Facultad de Ciencias, Universidad Mayor, Temuco, Chile.
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23
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Shin MJ, Shin JS. Effect of ethanol on the color transition of the polydiacetylene vesicle of 10,12‐pentacosadiynoic acid for butylamine detection. J Appl Polym Sci 2019. [DOI: 10.1002/app.47688] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Min Jae Shin
- Department of Cosmetics and BiotechnologySemyung University Jecheon Chungbuk 27136 Korea
| | - Jae Sup Shin
- Department of ChemistryChungbuk National University Cheongju Chungbuk 28644 Korea
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24
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Rouhani M. Fluoro-functionalized graphene as a promising nanosensor in detection of fish spoilage: A theoretical study. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.02.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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25
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Abstract
In the simplest words, a bio-sensor is an analytic device. In recent years, bio-sensors have shown emerging contribution in medical diagnosis, drug discovery, and treatment process. In this regards, continuous research is ongoing and many more features are being added in the sensing technologies. Optical sensing technology is no more bound in research area but also in the commercial use for the betterment of mankind. There are different types of bio-sensors particularly optical which have already been developed and research is going to expand many more of them. Sensing applications are not limited in glucose, DNA, cancer cell detection, drug discovery, immunological, Hepatitis B virus, and enzyme detection but also many more development is knocking at the door. Therefore, this review paper is focused on the applications and functions of bio-sensors (especially optical) in medical diagnostics and treatment.
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26
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Novel techniques for evaluating freshness quality attributes of fish: A review of recent developments. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2018.12.002] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Carpenter AC, Paulsen IT, Williams TC. Blueprints for Biosensors: Design, Limitations, and Applications. Genes (Basel) 2018; 9:E375. [PMID: 30050028 PMCID: PMC6115959 DOI: 10.3390/genes9080375] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/23/2018] [Accepted: 07/23/2018] [Indexed: 12/12/2022] Open
Abstract
Biosensors are enabling major advances in the field of analytics that are both facilitating and being facilitated by advances in synthetic biology. The ability of biosensors to rapidly and specifically detect a wide range of molecules makes them highly relevant to a range of industrial, medical, ecological, and scientific applications. Approaches to biosensor design are as diverse as their applications, with major biosensor classes including nucleic acids, proteins, and transcription factors. Each of these biosensor types has advantages and limitations based on the intended application, and the parameters that are required for optimal performance. Specifically, the choice of biosensor design must consider factors such as the ligand specificity, sensitivity, dynamic range, functional range, mode of output, time of activation, ease of use, and ease of engineering. This review discusses the rationale for designing the major classes of biosensor in the context of their limitations and assesses their suitability to different areas of biotechnological application.
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Affiliation(s)
- Alexander C Carpenter
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
- CSIRO Synthetic Biology Future Science Platform, Canberra, ACT 2601, Australia.
| | - Ian T Paulsen
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
| | - Thomas C Williams
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia.
- CSIRO Synthetic Biology Future Science Platform, Canberra, ACT 2601, Australia.
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28
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Endogenous and food-derived polyamines: determination by electrochemical sensing. Amino Acids 2018; 50:1187-1203. [DOI: 10.1007/s00726-018-2617-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 07/10/2018] [Indexed: 12/11/2022]
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29
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Liao Q, Suzuki T, Shirataki Y, Kuramoto M, Kondo N. Freshness related fluorescent compound changes in Japanese dace fish (Tribolodon hakonensis) eye fluid during storage. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.eaef.2018.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Altissimi S, Mercuri ML, Framboas M, Tommasino M, Pelli S, Benedetti F, Bella SD, Haouet N. Indicators of protein spoilage in fresh and defrosted crustaceans and cephalopods stored in domestic condition. Ital J Food Saf 2018; 6:6921. [PMID: 29564237 PMCID: PMC5850067 DOI: 10.4081/ijfs.2017.6921] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 11/23/2022] Open
Abstract
In relation to consumer demand, crustaceans and cephalopods are sold as both fresh and defrosted. It is well known that total volatile basic nitrogen (TVB-N) and volatile amine values, especially, biogenic amines and biogenic amine index, are expression of freshness of fish products, but there is a lack of knowledge of their acceptability limits, for crustaceans and cephalopods. In order to assess these limits, real-time shelf life tests were carried out, relating the results of TVB-N, biogenic amines and BAI to the sensory evaluation of crustaceans and cuttlefishes, both fresh and defrosted. TVB-N and biogenic amines have been analysed in many shrimp species and cuttlefishes purchased in Perugia (Central Italy), and BAI was calculated as the ratio between different biogenic amines. The results show levels of TVB-N and spermine different between shrimp and cuttlefish (TVB-N: 37 vs. 14 mg/100 g; spermine: 4 vs. 14 mg/kg, respectively) while the other biogenic amines and BAI are close to zero in both. Among biogenic amines, cadaverine and even more putrescine significantly affect BAI values and seem to be the most effective in assessing limits of acceptability during storage.
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Affiliation(s)
- Serena Altissimi
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
| | - Maria Lucia Mercuri
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
| | - Marisa Framboas
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
| | - Mauro Tommasino
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
| | - Stefania Pelli
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
| | - Ferdinando Benedetti
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
| | - Sara Di Bella
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
| | - Naceur Haouet
- Institute for Experimental Veterinary Medicine of Umbria and Marche, Perugia, Italy
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31
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de Lima Veeck AP, Daniel AP, Klein B, Quatrin A, de Souza Rezer AP, Milani LG, Zeppenfeld CC, da Cunha MA, Heldwein CG, Heinzmann BM, Parodi TV, Baldisserotto B, Emanuelli T. Chemical, microbiological, and sensory parameters during the refrigerated storage of silver catfish ( Rhamdia quelen) exposed in vivo to the essential oil of Lippia alba. Journal of Food Science and Technology 2018; 55:1416-1425. [PMID: 29606756 DOI: 10.1007/s13197-018-3056-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/26/2018] [Indexed: 11/30/2022]
Abstract
This study evaluated whether the essential oil of Lippia alba (EO) used as a sedative for fish transport would increase the stability of silver catfish during ice storage. Fish were transported (6 h) with water alone (control), 30 or 40 µL/L of EO in water. After transport, fish were slaughtered and stored in ice. Data on mesophilic and psychrotrophic bacteria counts during storage did not support the evidence for the antimicrobial activity of EO. However, fish treated with EO (30 and 40 µL/L) had delayed onset of rigor mortis, delayed increase of pH after 34 days of storage, and delayed peak of hypoxanthine formation and its degradation. In addition, the demerit sensory score of EO-treated fish (30 and 40 µL/L) was lower than that of controls along the storage. Thus, the use of EO as a sedative in the water used to transport silver catfish can delay the loss of freshness and the deterioration of whole fish stored in ice.
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Affiliation(s)
- Ana Paula de Lima Veeck
- 1Núcleo Integrado de Desenvolvimento em Análises Laboratoriais (NIDAL), Departamento de Tecnologia e Ciência dos Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil.,2Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil.,Instituto Federal de Santa Catarina/IFSC, Lages, SC 88506-400 Brazil
| | - Ana Paula Daniel
- 1Núcleo Integrado de Desenvolvimento em Análises Laboratoriais (NIDAL), Departamento de Tecnologia e Ciência dos Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil.,2Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Bruna Klein
- 1Núcleo Integrado de Desenvolvimento em Análises Laboratoriais (NIDAL), Departamento de Tecnologia e Ciência dos Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Andréia Quatrin
- 1Núcleo Integrado de Desenvolvimento em Análises Laboratoriais (NIDAL), Departamento de Tecnologia e Ciência dos Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Ana Paula de Souza Rezer
- 2Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Liana Guidolin Milani
- 2Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Carla Cristina Zeppenfeld
- 5Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Mauro Alves da Cunha
- 5Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Clarissa Giesel Heldwein
- 4Departamento de Farmácia Industrial, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Berta Maria Heinzmann
- 4Departamento de Farmácia Industrial, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Thaylise Vey Parodi
- 5Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Bernardo Baldisserotto
- 5Departamento de Fisiologia e Farmacologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
| | - Tatiana Emanuelli
- 1Núcleo Integrado de Desenvolvimento em Análises Laboratoriais (NIDAL), Departamento de Tecnologia e Ciência dos Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil.,2Programa de Pós-graduação em Ciência e Tecnologia de Alimentos, Centro de Ciências Rurais, Universidade Federal de Santa Maria, Camobi, Santa Maria, RS 97105-900 Brazil
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32
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Pattarapon P, Zhang M, Bhandari B, Gao Z. Effect of vacuum storage on the freshness of grass carp (
Ctenopharyngodon idella
) fillet based on normal and electronic sensory measurement. J FOOD PROCESS PRES 2017. [DOI: 10.1111/jfpp.13418] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Phuhongsung Pattarapon
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxi, Jiangsu China
| | - Min Zhang
- State Key Laboratory of Food Science and TechnologyJiangnan UniversityWuxi, Jiangsu China
- Jiangnan University (Yangzhou) Food Biotechnology InstituteYangzhou China
| | - Bhesh Bhandari
- School of Agriculture and Food SciencesUniversity of QueenslandBrisbane, Queensland Australia
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33
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Hong H, Regenstein JM, Luo Y. The importance of ATP-related compounds for the freshness and flavor of post-mortem fish and shellfish muscle: A review. Crit Rev Food Sci Nutr 2017; 57:1787-1798. [PMID: 26114933 DOI: 10.1080/10408398.2014.1001489] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
ATP degradation is one of the most important biochemical changes in the post-mortem muscle of fish and shellfish. This process has long been recognized as an accurate way to evaluate freshness of fish and shellfish product. This review updates and condenses the overall history and recent advances in understanding the role of ATP-related compounds in post-mortem fish and shellfish muscle including a discussion of key analytical methods, their use as a freshness indicator, their roles in flavor enhancement, the factors affecting their transitions, and the possible mechanisms responsible for their impact on flavor and freshness. Moreover, some challenges and future directions for research regarding ATP-related compounds in fish and shellfish flavor and freshness are presented. With increasing consumer demands for fresh products with extended shelf life, understanding the relationships between ATP-related compounds and their involvement in the freshness and umami taste is a prerequisite for assuring the high quality of fish and shellfish.
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Affiliation(s)
- Hui Hong
- a Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University , Beijing , PR China.,b Department of Food Science , Cornell University , Ithaca , New York , USA
| | - Joe M Regenstein
- b Department of Food Science , Cornell University , Ithaca , New York , USA
| | - Yongkang Luo
- a Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University , Beijing , PR China.,c Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University , Beijing , PR China
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34
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Comparative Analysis of Nutritional Value ofOreochromis niloticus(Linnaeus), Nile Tilapia, Meat from Three Different Ecosystems. J FOOD QUALITY 2017. [DOI: 10.1155/2017/6714347] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Determination of protein, lipid, and mineral content of fish meat is necessary to ensure that it meets requirements for food regulations and commercial specifications. The objective of the present study was to determine the chemical composition ofOreochromis niloticus(L.), Nile tilapia, under three different ecosystems: (1) high pollution and high density ofEichhornia crassipes, that is, water hyacinth (Lake Chivero), (2) medium pollution and medium density of water hyacinth (Lake Manyame), and (3) low pollution and low density of water hyacinth (Lake Kariba). Dry matter, protein, lipids, and ash were evaluated by proximate analysis. Minerals were determined by atomic absorption spectrophotometry and pH was determined by a pH meter. Lake Kariba fish had the highest percentage of dry matter, protein, and ash. These qualities were correlated to low levels of pollutants and high oxygen content in the harvest waters. The phosphorus content of fish from Lake Chivero was very high, in tandem with phosphate levels in the harvest waters. In addition, water from Lake Chivero had an alkaline pH, high nitrate, and low oxygen content. The results suggest that effluent from sewage works and fertilizer industries caused pollution and proliferation of water hyacinth, contributing to pervasion of the chemical composition of fish.
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35
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Castillero P, Roales J, Lopes-Costa T, Sánchez-Valencia JR, Barranco A, González-Elipe AR, Pedrosa JM. Optical Gas Sensing of Ammonia and Amines Based on Protonated Porphyrin/TiO₂ Composite Thin Films. SENSORS 2016; 17:s17010024. [PMID: 28025570 PMCID: PMC5298597 DOI: 10.3390/s17010024] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/14/2016] [Accepted: 12/20/2016] [Indexed: 12/27/2022]
Abstract
Open porous and transparent microcolumnar structures of TiO2 prepared by physical vapour deposition in glancing angle configuration (GLAD-PVD) have been used as host matrices for two different fluorescent cationic porphyrins, 5-(N-methyl 4-pyridyl)-10,15,20-triphenyl porphine chloride (MMPyP) and meso-tetra (N-methyl 4-pyridyl) porphine tetrachloride (TMPyP). The porphyrins have been anchored by electrostatic interactions to the microcolumns by self-assembly through the dip-coating method. These porphyrin/TiO2 composites have been used as gas sensors for ammonia and amines through previous protonation of the porphyrin with HCl followed by subsequent exposure to the basic analyte. UV–vis absorption, emission, and time-resolved spectroscopies have been used to confirm the protonation–deprotonation of the two porphyrins and to follow their spectral changes in the presence of the analytes. The monocationic porphyrin has been found to be more sensible (up to 10 times) than its tetracationic counterpart. This result has been attributed to the different anchoring arrangements of the two porphyrins to the TiO2 surface and their different states of aggregation within the film. Finally, there was an observed decrease of the emission fluorescence intensity in consecutive cycles of exposure and recovery due to the formation of ammonium chloride inside the film.
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Affiliation(s)
- Pedro Castillero
- Instituto de Ciencia de Materiales de Sevilla, CSIC-Universidad de Sevilla, Américo Vespucio 49, Sevilla 41092, Spain.
| | - Javier Roales
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Ctra. Utrera Km. 1, Sevilla 41013, Spain.
| | - Tânia Lopes-Costa
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Ctra. Utrera Km. 1, Sevilla 41013, Spain.
| | - Juan R Sánchez-Valencia
- Instituto de Ciencia de Materiales de Sevilla, CSIC-Universidad de Sevilla, Américo Vespucio 49, Sevilla 41092, Spain.
| | - Angel Barranco
- Instituto de Ciencia de Materiales de Sevilla, CSIC-Universidad de Sevilla, Américo Vespucio 49, Sevilla 41092, Spain.
| | - Agustín R González-Elipe
- Instituto de Ciencia de Materiales de Sevilla, CSIC-Universidad de Sevilla, Américo Vespucio 49, Sevilla 41092, Spain.
| | - José M Pedrosa
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Ctra. Utrera Km. 1, Sevilla 41013, Spain.
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A Nanoporous Alumina Membrane Based Electrochemical Biosensor for Histamine Determination with Biofunctionalized Magnetic Nanoparticles Concentration and Signal Amplification. SENSORS 2016; 16:s16101767. [PMID: 27782087 PMCID: PMC5087551 DOI: 10.3390/s16101767] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/10/2016] [Accepted: 10/17/2016] [Indexed: 02/04/2023]
Abstract
Histamine is an indicator of food quality and indispensable in the efficient functioning of various physiological systems. Rapid and sensitive determination of histamine is urgently needed in food analysis and clinical diagnostics. Traditional histamine detection methods require qualified personnel, need complex operation processes, and are time-consuming. In this study, a biofunctionalized nanoporous alumina membrane based electrochemical biosensor with magnetic nanoparticles (MNPs) concentration and signal amplification was developed for histamine determination. Nanoporous alumina membranes were modified by anti-histamine antibody and integrated into polydimethylsiloxane (PDMS) chambers. The specific antibody modified MNPs were used to concentrate histamine from samples and transferred to the antibody modified nanoporous membrane. The MNPs conjugated to histamine were captured in the nanopores via specific reaction between histamine and anti-histamine antibody, resulting in a blocking effect that was amplified by MNPs in the nanopores. The blockage signals could be measured by electrochemical impedance spectroscopy across the nanoporous alumina membrane. The sensing platform had great sensitivity and the limit of detection (LOD) reached as low as 3 nM. This biosensor could be successfully applied for histamine determination in saury that was stored in frozen conditions for different hours, presenting a potentially novel, sensitive, and specific sensing system for food quality assessment and safety support.
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Monzó J, Insua I, Fernandez-Trillo F, Rodriguez P. Fundamentals, achievements and challenges in the electrochemical sensing of pathogens. Analyst 2016; 140:7116-28. [PMID: 26339688 DOI: 10.1039/c5an01330e] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Electrochemical sensors are powerful tools widely used in industrial, environmental and medical applications. The versatility of electrochemical methods allows for the investigation of chemical composition in real time and in situ. Electrochemical detection of specific biological molecules is a powerful means for detecting disease-related markers. In the last 10 years, highly-sensitive and specific methods have been developed to detect waterborne and foodborne pathogens. In this review, we classify the different electrochemical techniques used for the qualitative and quantitative detection of pathogens. The robustness of electrochemical methods allows for accurate detection even in heterogeneous and impure samples. We present a fundamental description of the three major electrochemical sensing methods used in the detection of pathogens and the advantages and disadvantages of each of these methods. In each section, we highlight recent breakthroughs, including the utilisation of microfluidics, immunomagnetic separation and multiplexing for the detection of multiple pathogens in a single device. We also include recent studies describing new strategies for the design of future immunosensing systems and protocols. The high sensitivity and selectivity, together with the portability and the cost-effectiveness of the instrumentation, enhances the demand for further development in the electrochemical detection of microbes.
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Affiliation(s)
- Javier Monzó
- School of Chemistry, University of Birmingham, B15 2TT, UK.
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Mehrotra P. Biosensors and their applications - A review. J Oral Biol Craniofac Res 2016; 6:153-9. [PMID: 27195214 PMCID: PMC4862100 DOI: 10.1016/j.jobcr.2015.12.002] [Citation(s) in RCA: 507] [Impact Index Per Article: 63.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 12/05/2015] [Indexed: 10/22/2022] Open
Abstract
The various types of biosensors such as enzyme-based, tissue-based, immunosensors, DNA biosensors, thermal and piezoelectric biosensors have been deliberated here to highlight their indispensable applications in multitudinous fields. Some of the popular fields implementing the use of biosensors are food industry to keep a check on its quality and safety, to help distinguish between the natural and artificial; in the fermentation industry and in the saccharification process to detect precise glucose concentrations; in metabolic engineering to enable in vivo monitoring of cellular metabolism. Biosensors and their role in medical science including early stage detection of human interleukin-10 causing heart diseases, rapid detection of human papilloma virus, etc. are important aspects. Fluorescent biosensors play a vital role in drug discovery and in cancer. Biosensor applications are prevalent in the plant biology sector to find out the missing links required in metabolic processes. Other applications are involved in defence, clinical sector, and for marine applications.
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Qiu WQ, Chen SS, Xie J, Qu YH, Song X. Analysis of 10 nucleotides and related compounds in Litopenaeus vannamei during chilled storage by HPLC-DAD. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.11.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Yin X, Luo Y, Fan H, Feng L, Shen H. Effect of Freeze-Chilled Treatment on Flavor of Grass Carp (Ctenopharyngodon idellus) Fillets and Soups During Short-Term Storage. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2016. [DOI: 10.1080/10498850.2014.987862] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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41
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Thanigaivel S, Chandrasekaran N, Mukherjee A, Thomas J. Investigation of seaweed extracts as a source of treatment against bacterial fish pathogen. AQUACULTURE 2015; 448:82-86. [DOI: 10.1016/j.aquaculture.2015.05.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
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42
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Dervisevic M, Custiuc E, Çevik E, Durmus Z, Şenel M, Durmus A. Electrochemical biosensor based on REGO/Fe3O4 bionanocomposite interface for xanthine detection in fish sample. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.05.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Liu X, Lillehoj PB. Electrochemical Detection in Stacked Paper Networks. ACTA ACUST UNITED AC 2015; 20:506-10. [DOI: 10.1177/2211068215573662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 11/16/2022]
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Dervisevic M, Custiuc E, Çevik E, Şenel M. Construction of novel xanthine biosensor by using polymeric mediator/MWCNT nanocomposite layer for fish freshness detection. Food Chem 2015; 181:277-83. [DOI: 10.1016/j.foodchem.2015.02.104] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 02/17/2015] [Accepted: 02/20/2015] [Indexed: 11/29/2022]
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45
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Goode JA, Rushworth JVH, Millner PA. Biosensor Regeneration: A Review of Common Techniques and Outcomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:6267-76. [PMID: 25402969 DOI: 10.1021/la503533g] [Citation(s) in RCA: 180] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Biosensors are ideally portable, low-cost tools for the rapid detection of pathogens, proteins, and other analytes. The global biosensor market is currently worth over 10 billion dollars annually and is a burgeoning field of interdisciplinary research that is hailed as a potential revolution in consumer, healthcare, and industrial testing. A key barrier to the widespread adoption of biosensors, however, is their cost. Although many systems have been validated in the laboratory setting and biosensors for a range of analytes are proven at the concept level, many have yet to make a strong commercial case for their acceptance. Though it is true with the development of cheaper electrodes, circuits, and components that there is a downward pressure on costs, there is also an emerging trend toward the development of multianalyte biosensors that is pushing in the other direction. One way to reduce the cost that is suitable for certain systems is to enable their reuse, thus reducing the cost per test. Regenerating biosensors is a technique that can often be used in conjunction with existing systems in order to reduce costs and accelerate the commercialization process. This article discusses the merits and drawbacks of regeneration schemes that have been proven in various biosensor systems and indicates parameters for successful regeneration based on a systematic review of the literature. It also outlines some of the difficulties encountered when considering the role of regeneration at the point of use. A brief meta-analysis has been included in this review to develop a working definition for biosensor regeneration, and using this analysis only ∼60% of the reported studies analyzed were deemed a success. This highlights the variation within the field and the need to normalize regeneration as a standard process across the field by establishing a consensus term.
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Affiliation(s)
- J A Goode
- †School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
- ‡AbCam Plc, Cambridge, United Kingdom
| | - J V H Rushworth
- †School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
- §School of Allied Health Sciences, Faculty of Health and Life Sciences, De Montfort University, Leicester, United Kingdom
| | - P A Millner
- †School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
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Heising J, van Boekel M, Dekker M. Simulations on the prediction of cod (Gadus morhua) freshness from an intelligent packaging sensor concept. Food Packag Shelf Life 2015. [DOI: 10.1016/j.fpsl.2014.10.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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Selective removal of ATP degradation products from food matrices II: Rapid screening of hypoxanthine and inosine by molecularly imprinted matrix solid-phase dispersion for evaluation of fish freshness. Talanta 2015; 135:58-66. [PMID: 25640126 DOI: 10.1016/j.talanta.2014.12.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/19/2014] [Accepted: 12/23/2014] [Indexed: 11/24/2022]
Abstract
A water compatible molecularly imprinted polymer (MIP), synthesized using theophylline (TPH) as dummy-template and acrylamide (AM) as functional monomer, has been employed as supporting material in matrix solid-phase dispersion combined with ultra performance liquid chromatography-photodiode array detection (MSPD-UPLC-PDA) for selective determination of adenosine triphosphate (ATP) derivatives in fish samples. ATP degradation products are used as freshness index for assessment of fish quality. The solid sample was directly blended with MIP in MSPD procedure resulting in sample disruption and subsequent adsorption of the compounds on the MIP. By using n-hexane and ammonium hydroxide aqueous solution at pH 9 as the washing and elution solvent, respectively, satisfactory recoveries and clean chromatograms have been obtained. Good linearity for hypoxanthine (HYP) and inosine (INO) has been observed with correlation coefficients (R(2)) of 0.9987 and 0.9986, respectively. The recoveries of the two ATP derivatives at three different spiked levels ranged from 106.5% to 113.4% for HYP and from 103.1% to 111.2% for INO, with average relative standard deviations lower than 4.2% in both cases. This new method, which is rapid, simple and sensitive, can be used as an alternative tool to conventional tedious methods.
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48
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Sen S, Sarkar P. A novel third-generation xanthine biosensor with enzyme modified glassy carbon electrode using electrodeposited MWCNT and nanogold polymer composite film. RSC Adv 2015. [DOI: 10.1039/c5ra18889j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new design of xanthine biosensor with novel nanogold decorated poly(o-phenylenediamine) film and functionalized MWCNT having excellent sensitivity, stability and detection limit.
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Affiliation(s)
- Sarani Sen
- Sensor Laboratory
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
| | - Priyabrata Sarkar
- Sensor Laboratory
- Department of Polymer Science and Technology
- University of Calcutta
- Kolkata 700009
- India
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49
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Onjong HA, Wangoh J, Njage PMK. Semiquantitative analysis of gaps in microbiological performance of fish processing sector implementing current food safety management systems: a case study. J Food Prot 2014; 77:1380-9. [PMID: 25198601 DOI: 10.4315/0362-028x.jfp-13-511] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Fish processing plants still face microbial food safety-related product rejections and the associated economic losses, although they implement legislation, with well-established quality assurance guidelines and standards. We assessed the microbial performance of core control and assurance activities of fish exporting processors to offer suggestions for improvement using a case study. A microbiological assessment scheme was used to systematically analyze microbial counts in six selected critical sampling locations (CSLs). Nine small-, medium- and large-sized companies implementing current food safety management systems (FSMS) were studied. Samples were collected three times on each occasion (n = 324). Microbial indicators representing food safety, plant and personnel hygiene, and overall microbiological performance were analyzed. Microbiological distribution and safety profile levels for the CSLs were calculated. Performance of core control and assurance activities of the FSMS was also diagnosed using an FSMS diagnostic instrument. Final fish products from 67% of the companies were within the legally accepted microbiological limits. Salmonella was absent in all CSLs. Hands or gloves of workers from the majority of companies were highly contaminated with Staphylococcus aureus at levels above the recommended limits. Large-sized companies performed better in Enterobacteriaceae, Escherichia coli, and S. aureus than medium- and small-sized ones in a majority of the CSLs, including receipt of raw fish material, heading and gutting, and the condition of the fish processing tables and facilities before cleaning and sanitation. Fish products of 33% (3 of 9) of the companies and handling surfaces of 22% (2 of 9) of the companies showed high variability in Enterobacteriaceae counts. High variability in total viable counts and Enterobacteriaceae was noted on fish products and handling surfaces. Specific recommendations were made in core control and assurance activities associated with sampling locations showing poor performance.
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Affiliation(s)
- Hillary Adawo Onjong
- Department of Food Science, Nutrition and Technology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - John Wangoh
- Department of Food Science, Nutrition and Technology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Patrick Murigu Kamau Njage
- Department of Food Science, Nutrition and Technology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya; Department of Food Science, University of Pretoria, Hatfield, Pretoria 00028, South Africa.
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50
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Sadeghi S, Fooladi E, Malekaneh M. A nanocomposite/crude extract enzyme-based xanthine biosensor. Anal Biochem 2014; 464:51-9. [PMID: 25062853 DOI: 10.1016/j.ab.2014.07.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/12/2014] [Accepted: 07/15/2014] [Indexed: 10/25/2022]
Abstract
A novel amperometric biosensor for xanthine was developed based on covalent immobilization of crude xanthine oxidase (XOD) extracted from bovine milk onto a hybrid nanocomposite film via glutaraldehyde. Toward the preparation of the film, a stable colloids solution of core-shell Fe3O4/polyaniline nanoparticles (PANI/Fe3O4 NPs) was dispersed in solution containing chitosan (CHT) and H2PtCl6 and electrodeposited over the surface of a carbon paste electrode (CPE) in one step. Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectrophotometry, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) were used for characterization of the electrode surface. The developed biosensor (XOD/CHT/Pt NPs/PANI/Fe3O4/CPE) was employed for determination of xanthine based on amperometric detection of hydrogen peroxide (H2O2) reduction at -0.35V (vs. Ag/AgCl). The biosensor exhibited a fast response time to xanthine within 8s and a linear working concentration range from 0.2 to 36.0μM (R(2)=0.997) with a detection limit of 0.1μM (signal/noise [S/N]=3). The sensitivity of the biosensor was 13.58μAμM(-1)cm(-2). The apparent Michaelis-Menten (Km) value for xanthine was found to be 4.7μM. The fabricated biosensor was successfully applied for measurement of fish and chicken meat freshness, which was in agreement with the standard method at the 95% confidence level.
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Affiliation(s)
- Susan Sadeghi
- Department of Chemistry, Faculty of Science, University of Birjand, Birjand, South Khorasan, Iran.
| | - Ebrahim Fooladi
- Department of Chemistry, Faculty of Science, University of Birjand, Birjand, South Khorasan, Iran
| | - Mohammad Malekaneh
- Department of Clinical Biochemistry, Birjand University of Medical Sciences, Birjand, South Khorasan, Iran
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