Electronic tongue is a new approach for simple and fast detection, classification, and quantification of the solved compounds. Crocin is the main source of color of saffron ( L.). An electronic tongue system was used to predict the concentration of saffron crocin in the present study. The measurement system included an electrochemical sensor array based on voltammetry electrodes, a three-electrode cell, a potentiostat, a personal computer. Aqueous analyte were provided by blending pure crocin and different saffron samples from Iran and Spain with distilled water. Output signals of the electronic tongue system were analyzed by principal component analysis and artificial neural networks. Based on principal component analysis, the total variance among pure crocin was 99% and that of saffron samples was 100%. The accuracy of artificial neural network model was 98.80%. The results indicated that the developed electronic tongue system and artificial neural network model can successfully predict crocin concentration in saffron.
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http://dx.doi.org/10.1007/s13197-021-05349-1 | DOI Listing |
Anal Methods
November 2017
Materials Science Centre, Indian Institute of Technology, Kharagpur-721302, India.
Functionalized polymer membrane electrodes based multichannel sensor is used as an electronic tongue to monitor the drinking water (DW) quality simply by measuring the surface electric potential with respect to Ag/AgCl reference electrode in 1 mM aqueous KCl. Changes of minute concentration of dissolved minerals greatly affected the surface potential of the sensor. The three-channel sensor device (electronic tongue) is made by using three different functionalized polymer membrane electrodes, namely, phosphorylated hexadecyl trimethyl ammonium chloride modified polyvinyl alcohol-polyacrylic acid membrane; phosphorylated and crosslinked polyvinyl--ethylene membrane; phosphorylated and crosslinked polyvinyl alcohol membrane, as working electrodes and a Ag/AgCl reference electrode.
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Department of Rhinology and Facial Plastic Surgery, Royal National ENT and Eastman Dental Hospitals, University College London Hospitals NHS Foundation Trust, London, United Kingdom.
Optimal results in complex nasal reconstruction, particularly in the context of post-traumatic and revision septorhinoplasty, often require the use of cartilage grafts to provide additional structural support to the nose. While autologous costal cartilage (ACC) has been traditionally used, this can be limited by donor site morbidity, increased operative time, and in some cases, lack of suitable cartilage for grafting. There has been a trend towards using irradiated homologous costal cartilage (IHCC) as an alternative source of graft material.
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January 2025
Department of Food Engineering and Technology, School of Food Engineering, State University of Campinas, Campinas, SP, Brazil. Electronic address:
Threshold determination forms an integral part of sensory and consumer studies applied for product control and development. The authors examined the potential of an impedimetric electronic tongue to discriminate basic tastes and consider limitations pertaining to the sensory evaluation process. Three samples at lower, medium, and higher concentration levels of basic taste compounds were prepared and subjected to consumer studies (n = 60) using the difference from-control (DFC) test.
View Article and Find Full Text PDFFood Chem
January 2025
College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China; University Key Laboratory of Food Processing Byproducts for Advanced Development and High Value Utilization, Xi'an 710119, China. Electronic address:
Bioreceptors are increasingly popular for selective aroma sensing but face challenges with receptor separation and cell culture. Here, we developed a bioreceptor-free electronic nose employing Mn-metal organic framework (Mn-MOF) nanonets as sensing materials for rapid electrochemical quantification of (E)-2-hexenal, a characteristic aroma commonly found in various foods. A simple solvent-mediated morphology engineering technology was proposed to create Mn-MOF structures, including nanoparticles, nanowires, and nanonets.
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CSIR-Central Drug Research Institute, Lucknow, 226031, UP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, UP, India. Electronic address:
The limitations of existing mouse models of lung infection with Mycobacteroides abscessus impede drug discovery and development. In contrast to current animal models that introduce NTM intravenously or by intranasal/intra-tracheal instillation or via bronchoscopy-guided insufflation, we developed a dry powder inhalation (DPI) of M. abscessus ATCC 19977 that generated paucibacillary lung infection and histopathology in immunocompetent mice.
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