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Wang W, Chen D, Cai Y, Liu Z, Yang H, Xie H, Liu J, Yang S. Sodium alginate hydrogelation mediated paper-based POCT sensor for visual distance reading and smartphone-assisted colorimetric dual-signal determination of L-lactate. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2077-2084. [PMID: 38511294 DOI: 10.1039/d4ay00041b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Herein, we present a paper-based POCT sensor based on lactate dehydrogenase-mediated alginate gelation combined with visual distance reading and smartphone-assisted colorimetric dual-signal analysis to determine the concentration of L-lactate in yogurt samples. In this research, L-lactate was transformed into pyruvate by lactate dehydrogenase. Pyruvate then triggered the gelation of a sol mixture, increasing the viscosity (ηs) of the mixture, which was shown as a decrease in the diffusion diameter on the paper-based sensor. In addition, protons from pyruvate accelerated the degradation of Rhodamine B, causing color fading of the mixture, which was analyzed using RGB analysis application software. Under optimal experimental conditions, the linear ranges of visual distance reading and smartphone-assisted colorimetric analysis were 0.1-15 μM and 0.3-15 μM and the detection limits were 0.03 μM and 0.07 μM, respectively. As a proof-of-concept application, we exploited the paper-based sensor to determine the concentration of L-lactate in yogurt samples. The results from the dual-signal paper-based sensor were consistent with the ones from HPLC analysis. In short, this study developed a simple, convenient, cost-effective, and feasible method for the quantitative detection of L-lactate in real samples.
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Affiliation(s)
- Wenjuan Wang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang, Hunan, 421001, China
| | - Danrong Chen
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang, Hunan, 421001, China
| | - Yujiao Cai
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang, Hunan, 421001, China
| | - Zijing Liu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang, Hunan, 421001, China
| | - Hongfen Yang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang, Hunan, 421001, China
| | - Hongbin Xie
- Hengyang Center for Disease Control and Prevention, Hengyang, Hunan, 421001, China
| | - Jinquan Liu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang, Hunan, 421001, China
| | - Shengyuan Yang
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang, Hunan, 421001, China
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Smutok O, Kavetskyy T, Gonchar M, Katz E. Microbial L‐ and D‐Lactate Selective Oxidoreductases as a Very Prospective but Still Uncommon Tool in Commercial Biosensors. ChemElectroChem 2021. [DOI: 10.1002/celc.202101149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Oleh Smutok
- Department of Chemistry and Biomolecular Science Clarkson University 8 Clarkson Avenue, Potsdam NY 13699 New York USA
| | - Taras Kavetskyy
- Drohobych Ivan Franko State Pedagogical University I. Franko Str. 24 82100 Drohobych Ukraine
- The John Paul II Catholic University of Lublin Al. Racławickie 14 20-950 Lublin Poland
| | - Mykhailo Gonchar
- Drohobych Ivan Franko State Pedagogical University I. Franko Str. 24 82100 Drohobych Ukraine
- Department of Analytical Biotechnology Institute of Cell Biology NAS of Ukraine Drahomanov Street 14/16 79005 Lviv Ukraine
| | - Evgeny Katz
- Department of Chemistry and Biomolecular Science Clarkson University 8 Clarkson Avenue, Potsdam NY 13699 New York USA
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Smutok OV, Dmytruk KV, Kavetskyy TS, Sibirny AA, Gonchar MV. Flavocytochrome b 2 of the Methylotrophic Yeast Ogataea polymorpha: Construction of Overproducers, Purification, and Bioanalytical Application. Methods Mol Biol 2021; 2280:249-260. [PMID: 33751440 DOI: 10.1007/978-1-0716-1286-6_16] [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] [Indexed: 06/12/2023]
Abstract
Flavocytochrome b2 (EC 1.1.2.3; L-lactate cytochrome: c oxidoreductase, FC b2) from the thermotolerant methylotrophic yeast Ogataea polymorpha is a thermostable enzyme-prospective for a highly selective L-lactate analysis in the medicine, nutrition sector, and quality control of commercial products. Here we describe the construction of FC b2 producers by overexpression of the CYB2 gene O. polymorpha, encoding FC b2, under the control of a strong alcohol oxidase promoter in the frame of plasmid for multicopy integration with the next transformation of recipient strain O. polymorpha C-105 (gcr1 catX) impaired in the glucose repression and devoid of catalase activity. The selected recombinant strain O. polymorpha "tr1" (gcr1 catX CYB2), characterized by eightfold increased FC b2 activity compared to the initial strain, was used as a source of the enzyme. For purification of FC b2 a new method of affinity chromatography was developed and purified preparations of the enzyme were used for the construction of the highly selective enzymatic kits and amperometric biosensor for L-lactate analysis in human liquids and foods.
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Affiliation(s)
- Oleh V Smutok
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine.
- Drohobych Ivan Franko State Pedagogical University, Drohobych, Ukraine.
- Clarkson University, Potsdam, NY, USA.
| | - Kostyantyn V Dmytruk
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Taras S Kavetskyy
- Drohobych Ivan Franko State Pedagogical University, Drohobych, Ukraine
- The John Paul II Catholic University of Lublin, Lublin, Poland
| | - Andriy A Sibirny
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
- University of Rzeszow, Rzeszow, Poland
| | - Mykhailo V Gonchar
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
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Li X, Sadiq S, Zhang W, Chen Y, Xu X, Abbas A, Chen S, Zhang R, Xue G, Sobotka D, Makinia J. Salinity enhances high optically active L-lactate production from co-fermentation of food waste and waste activated sludge: Unveiling the response of microbial community shift and functional profiling. BIORESOURCE TECHNOLOGY 2021; 319:124124. [PMID: 32977090 DOI: 10.1016/j.biortech.2020.124124] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Lactic acid (LA), a versatile platform molecule, can be fermented from organic wastes, such as food waste and waste activated sludge. In this study, an efficient approach using salt, a component of food waste as an additive, was proposed to increase LA production. The LA productivity was increased at 10 g NaCl/L and optical pure L-lactate was obtained at 30 g NaCl/L. The enhancement of LA was in accordance with the increased solubilization and the critical hydrolase activities under saline conditions. Moreover, high salinity (30-50 g NaCl/L) changed the common conversion of LA to volatile fatty acids. In addition, the key LA bacteria genera (Bacillus, Enterococcus, Lactobacillus) were selectively enriched under saline conditions. Strong correlations between salinity and functional genes for L-LA production were also observed. This study provides a practical way for the enrichment of L-LA with high optical activity from organic wastes.
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Affiliation(s)
- Xiang Li
- State Environmental Protection Engineering Centre for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Safeena Sadiq
- State Environmental Protection Engineering Centre for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Wenjuan Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Yiren Chen
- State Environmental Protection Engineering Centre for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Xianbao Xu
- State Environmental Protection Engineering Centre for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China.
| | - Anees Abbas
- Department of Chemistry, University of Mianwali, 42200 Mianwali, Pakistan
| | - Shanping Chen
- Shanghai Municipal Solid Waste Engineering Technology Research Center, Shanghai Institute for Design & Research on Environmental Engineering Co., Ltd, Shanghai Environmental Sanitary Engineering Design Institute Co., Ltd, Shilong Road 345, Shanghai 200232, China
| | - Ruina Zhang
- Shanghai Municipal Solid Waste Engineering Technology Research Center, Shanghai Institute for Design & Research on Environmental Engineering Co., Ltd, Shanghai Environmental Sanitary Engineering Design Institute Co., Ltd, Shilong Road 345, Shanghai 200232, China
| | - Gang Xue
- State Environmental Protection Engineering Centre for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Dominika Sobotka
- Faculty of Civil and Environmental Engineering, Gdansk University of Technology, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Jacek Makinia
- Faculty of Civil and Environmental Engineering, Gdansk University of Technology, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
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Enabling tools for high-throughput detection of metabolites: Metabolic engineering and directed evolution applications. Biotechnol Adv 2017; 35:950-970. [PMID: 28723577 DOI: 10.1016/j.biotechadv.2017.07.005] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 06/07/2017] [Accepted: 07/11/2017] [Indexed: 12/21/2022]
Abstract
Within the Design-Build-Test Cycle for strain engineering, rapid product detection and selection strategies remain challenging and limit overall throughput. Here we summarize a wide variety of modalities that transduce chemical concentrations into easily measured absorbance, luminescence, and fluorescence signals. Specifically, we cover protein-based biosensors (including transcription factors), nucleic acid-based biosensors, coupled enzyme reactions, bioorthogonal chemistry, and fluorescent and chromogenic dyes and substrates as modalities for detection. We focus on the use of these methods for strain engineering and enzyme discovery and conclude with remarks on the current and future state of biosensor development for application in the metabolic engineering field.
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Fišer Pečnikar Ž, Buzan EV. 20 years since the introduction of DNA barcoding: from theory to application. J Appl Genet 2013; 55:43-52. [PMID: 24203863 DOI: 10.1007/s13353-013-0180-y] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 10/14/2013] [Accepted: 10/15/2013] [Indexed: 01/29/2023]
Abstract
Traditionally, taxonomic identification has relied upon morphological characters. In the last two decades, molecular tools based on DNA sequences of short standardised gene fragments, termed DNA barcodes, have been developed for species discrimination. The most common DNA barcode used in animals is a fragment of the cytochrome c oxidase (COI) mitochondrial gene, while for plants, two chloroplast gene fragments from the RuBisCo large subunit (rbcL) and maturase K (matK) genes are widely used. Information gathered from DNA barcodes can be used beyond taxonomic studies and will have far-reaching implications across many fields of biology, including ecology (rapid biodiversity assessment and food chain analysis), conservation biology (monitoring of protected species), biosecurity (early identification of invasive pest species), medicine (identification of medically important pathogens and their vectors) and pharmacology (identification of active compounds). However, it is important that the limitations of DNA barcoding are understood and techniques continually adapted and improved as this young science matures.
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Affiliation(s)
- Živa Fišer Pečnikar
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000, Koper, Slovenia,
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