Quantitative Determination of Spring Water Quality Parameters via Electronic Tongue

Carbó, Noèlia; Carrero, Javier López; García-Castillo, F. Javier; Tormos, Isabel; Olivas, Estela; Folch, Elisa; Alcañíz, Miguel; Soto, Juán; Martínez‐Máñez, Ramón; Martínez-Bisbal, M. Carmen

doi:10.3390/s18010040

Cited by 16 publications

(10 citation statements)

References 26 publications

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“…Electronic tongue (“E-tongue”) systems have been successfully developed to mimic the organization of human taste buds, which are sensor arrays ( Wei and Wang, 2013 ; Phat et al, 2016 ). This instrument is widely used for testing liquid foodstuffs, such as water ( Carbó et al., 2018 ), wine ( Buratti et al., 2007 ), fruit juice ( Qiu et al., 2015 ), and tea ( Chen et al., 2008 ). It has proven to be a promising, rapid, and low-cost technique for the discrimination of blueberry juices produced from different plant genotypes ( Kraujalytė et al., 2015 ).…”

Section: Introductionmentioning

confidence: 99%

High Altitude Is Beneficial for Antioxidant Components and Sweetness Accumulation of Rabbiteye Blueberry

Zeng

Gao²,

Tian

et al. 2020

Front. Plant Sci.

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To better understand the effect of growing location on the phytochemical compounds and sensory properties of blueberry (Vaccinium spp.), here we investigated rabbiteye blueberry 'Brightwell' (Vaccinium ashei cv. 'Brightwell') grown in 10 locations of China. Significant differences in terms of total soluble solids, titratable acidity, flavonoids, phenols, as well as proanthocyanidins and anthocyanins, were found in the fruits (berries) of blueberry plants among the different sampled locations. Furthermore, their sensory properties, which evaluated by the electronic tongue method, also significantly differed among the 10 locations. The content of flavonoids, phenols, proanthocyanidins, and anthocyanins all had significant correlations with sensory properties, except that of aftertaste-astringency. A key finding to emerge was that blueberry plants grown at high altitude locations harbored a high content of total soluble solids, flavonoids, phenols, proanthocyanidins, and anthocyanins along with high scores for the sweetness. These results suggested cultivating blueberry at high altitude can produce fruit that not only possess pronounced beneficial health effects but also good taste.

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Section: Introductionmentioning

confidence: 99%

High Altitude Is Beneficial for Antioxidant Components and Sweetness Accumulation of Rabbiteye Blueberry

Zeng

Gao²,

Tian

et al. 2020

Front. Plant Sci.

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“…Besides conventional water quality indicators, various sensing technologies are used for vulnerability reliably of groundwater, river or water reservoir [ 15 , 16 , 17 ]. Among them, the biological stimulation technology, represented by the electronic tongue, has developed rapidly in recent years [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Least-Squares Support Vector Machines for Quantitative Evaluation of Known Contaminant in Water Distribution System Using Online Water Quality Parameters

Wang

Wen

Hou

et al. 2018

Sensors

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In water-quality, early warning systems and qualitative detection of contaminants are always challenging. There are a number of parameters that need to be measured which are not entirely linearly related to pollutant concentrations. Besides the complex correlations between variable water parameters that need to be analyzed also impairs the accuracy of quantitative detection. In aspects of these problems, the application of least-squares support vector machines (LS-SVM) is used to evaluate the water contamination and various conventional water quality sensors quantitatively. The various contaminations may cause different correlative responses of sensors, and also the degree of response is related to the concentration of the injected contaminant. Therefore to enhance the reliability and accuracy of water contamination detection a new method is proposed. In this method, a new relative response parameter is introduced to calculate the differences between water quality parameters and their baselines. A variety of regression models has been examined, as result of its high performance, the regression model based on genetic algorithm (GA) is combined with LS-SVM. In this paper, the practical application of the proposed method is considered, controlled experiments are designed, and data is collected from the experimental setup. The measured data is applied to analyze the water contamination concentration. The evaluation of results validated that the LS-SVM model can adapt to the local nonlinear variations between water quality parameters and contamination concentration with the excellent generalization ability and accuracy. The validity of the proposed approach in concentration evaluation for potassium ferricyanide is proven to be more than 0.5 mg/L in water distribution systems.

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“…Briefly, an e-tongue is a multisensory system employed in the analysis of complex liquid media that transforms raw data into specific recognition patterns that are further visualized through computational and statistical analysis [9][10][11]. There is a myriad of applications in the literature including not only 2 of 11 edible foodstuff [12] and beverages [13][14][15][16] but also in non-edible analytes, such as environmental pollutants [17][18][19], pesticides [20,21], elements of medical concern [22][23][24], and soil [25,26].…”

Section: Introductionmentioning

confidence: 99%

3D-Printed Graphene Electrodes Applied in an Impedimetric Electronic Tongue for Soil Analysis

et al. 2019

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The increasing world population leads to the growing demand for food production without expanding cultivation areas. In this sense, precision agriculture optimizes the production and input usage by employing sensors to locally monitor plant nutrient within agricultural fields. Here, we have used an electronic tongue sensing device based on impedance spectroscopy to recognize distinct soil samples (sandy and clayey) enriched with macronutrients. The e-tongue setup consisted of an array of four sensing units formed by layer-by-layer (LbL) films deposited onto 3D-printed graphene-based interdigitated electrodes (IDEs). The IDEs were fabricated in 20 min using the fused deposition modeling process and commercial polylactic acid-based graphene filaments. The e-tongue comprised one bare and three IDEs functionalized with poly(diallyldimethylammonium chloride) solution/copper phthalocyanine-3,4 ,4 ,4 -tetrasulfonic acid tetrasodium salt (PDDA/CuTsPc), PDDA/montmorillonite clay (MMt-K), and PDDA/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) LbL films. Control samples of sandy and clayey soils were enriched with different concentrations of nitrogen (N), phosphorus (P), and potassium (K) macronutrients. Sixteen soil samples were simply diluted in water and measured using electrical impedance spectroscopy, with data analyzed by principal component analysis. All soil samples were easily distinguished without pre-treatment, indicating the suitability of 3D-printed electrodes in e-tongue analysis to distinguish the chemical fertility of soil samples. Our results encourage further investigations into the development of new tools to support precision agriculture.

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Quantitative Determination of Spring Water Quality Parameters via Electronic Tongue

Cited by 16 publications

References 26 publications

High Altitude Is Beneficial for Antioxidant Components and Sweetness Accumulation of Rabbiteye Blueberry

High Altitude Is Beneficial for Antioxidant Components and Sweetness Accumulation of Rabbiteye Blueberry

Application of Least-Squares Support Vector Machines for Quantitative Evaluation of Known Contaminant in Water Distribution System Using Online Water Quality Parameters

3D-Printed Graphene Electrodes Applied in an Impedimetric Electronic Tongue for Soil Analysis

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