There is emerging attention for adulteration of turmeric with the vibrant yellow, toxic and carcinogenic compound lead chromate. Ideal tests for such food adulterants feature methods that are selective and sensitive, yet portable and convenient. High-quality potentiostat/galvanostat instruments with a small footprint, Modular potentiostat/galvanostat instruments for any requirements in electrochemical research, Multichannel potentiostat/galvanostat instruments for simultaneous measurements, Compact, PC-controlled portable potentiostat for education and basic applications. FASTER! Find the right VA or CVS system for your requirements here. Misa (Metrohm Instant SERS Analyzer) achieves rapid and accurate detection of MY in a facile assay format. In this work, we report a simplistic and convenient approach to find the adulteration of turmeric with metanil yellow by near-infrared (NIR) spectroscopy coupled with chemometrics. Sample mixtures of turmeric powder and metanil yellow were prepared at concentrations of 30%, 25%, 20%, 15%, 10%, 5%, 1%, and 0.01% (w/w). Learn more about our Liquid Handling solutions. Turmeric purity test – While the detection of adulteration might not be an easy task, there are certain effective methods to determine the purity of turmeric. Turmeric (Curcumina Longa) is a globally traded commodity which is subjected to economically motivated chemically unsafe adulteration, namely metanil yellow. Our new blog – Tips & tricks, application expertise, and more. Yellow clay can be detected by mixing turmeric with water. Sample mixtures of turmeric powder and metanil yellow were prepared at concentrations of 30%, 25%, 20%, 15%, 10%, 5%, 1%, and 0.01% (w/w). Find the suitable electrode for your application: titration, IC, pH measurement, VA, CVS, electrochemistry and more. Different methods like high performance liquid chromatography - electrospray ionization tandem mass spectrometry , high performance capillary electrophoresis , micellar chromatographic method were also been used for detection of metanil yellow. IC is the method of choice when HPLC fails. Test 1: For Metanil Yellow. The efficacy of using a handheld near infrared spectrometer to predict metanil yellow (MY) adulteration levels (0-30% w/w) in dried turmeric powder was tested against a benchtop near infrared spectrometer using partial least squares regression models. Food Analytical Methods 2018, 11 (5) , 1291-1302. Mixtures of metanil yellow in turmeric were prepared at concentrations of 30%, 25%, 20%, 15%, 10%, 5%, 1% and 0.01% by weight. However it is used extensively in India to give yellow colour to Dal (pulses) and turmeric. Metanil Yellow (Acid Yellow 36) is a dye of the azo class.In analytical chemistry, it is used as a pH indicator and it has a color change from red to yellow between pH 1.2 and 2.3.. Metrohm AG Learn how NIRS can boost your productivity and reduce costs in your QC lab. Economically motivated adulteration is a significant problem in the industry, and with the global curcumin market expected to reach USD 110.5 million by 2024 as consumers become… Turmeric (Curcumina Longa) is a globally traded commodity which is subjected to economically motivated chemically unsafe adulteration, namely metanil yellow. Find out what Metrohm has to offer for the analysis in the chemical industry. New titration system for the modern laboratory: faster analysis, safer chemical handling, new software, more automation. We report here about the practice of using metanil yellow, a non permitted synthetic dye, in the adulteration of some food items produced by the organized and unorganized sectors located in different districts in West Bengal, India. Detection of Aniline Dyes in Turmeric Powder 41 5. For the purpose of this study, both branded as well as non-branded turmeric samples were chosen at random to test for adulteration. It then told to add a few drops of hydrochloric acid. Find out what Metrohm has to offer for the monitoring of the water chemistry in thermal power plants, the wet chemical processing of solar cells and battery electrolytes, or electrochemical measurements of energy storage devices. of India, Thanjavur-613 005, Tamil Nadu. Metanil Yellow (Acid Yellow 36) is a dye of the azo class. varying wavelengths because of variation in . Spectral methods are emerging as alternatives, including the use of FT-IR for detection of metanil yellow down to 5% concentration, and FT-Raman down to 1% concentration. 11, No. 21, No. 25 November 2017 | Food Analytical Methods, Vol. Learn how NIRS can boost your productivity and reduce costs in your QC lab. Switzerland. Instrument-based detection methods for adulteration in spice and spice products – A review S K V Bharathi, A Sukitha, J A Moses* & C Anandharamakrishnan Indian Institute of Food Processing Technology Ministry of Food Processing Industries, Govt. Near-infrared spectroscopy analyzers for routine analysis of chemical and physical properties, Handheld spectrometer for quick and easy identification of unknown substances, B&W Tek offers a complete line of high performance laboratory, portable and handheld Raman systems. Find out what Metrohm has to offer for environmental analysis in air, soil, and water. 0.1 M Phosphate buffer (5.4 pH) as the supporting electrolyte. Going lower in detection – to the UV! By continuing to use the website, you agree to the use of cookies. Current studies that have used Raman spectroscopy for the detection of turmeric adulteration, have only focused on its use to detect adulterants like starch and metanil yellow, but not to specifically detect lead chromate. Theory. 3 | Manual of Methods Powders 9. Find out what Metrohm has to offer for environmental analysis in air, soil, and water. New volumetric Karl Fischer titrator for safe, easy, and fast water content determination, High-end titrators for determining any water content from 0.001 to 100%, Compact, stand-alone volumetric (> 0.1% water) or coulometric (down to 0.001% water) titrator with integrated touch-screen control unit, Basic volumetric Karl Fischer titrator for simple, safe, and reliable routine water content determinations, Entry-level titrator for coulometric (water content: 0.001 to 1%) or volumetric (up to 100%) water determination. Truly intelligent software Our quality service ranges from consulting and application support to installation, training, preventive maintenance and repair service. Liquid handling instrument for standalone use or integration into existing Metrohm systems, Manually controlled, high-precision instrument for all liquid handling tasks. And recent medical studies reported that people used turmeric to treat wounds, skin problems, muscle sprains, liver disease, breathing and stomach problems, as well as digestive problems, infections, and malignant tumors. The limit of detection and limit of quantification values for curcumin, metanil yellow, sudan I, and sudan IV were 17.39, 42.90, 15.45, and 7.01 … Your productivity and reduce costs in your QC lab add a few of! Water for about 10 minutes Vidyapeetham & CDAC Mumbai food adulterants feature methods are... For aroma – While genuine turmeric has a mild earthy aroma, the impure one has no aroma! 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