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Correct and accurate melting point measurements depend on reliable instruments. Learn how to achieve compliant curcumin measurements according to the European regulations. |
The Importance of the Melting Point of Curcumin
Food colors are added to foods or drinks to obtain the desired appearance. Curcumin (E100) is used in the food industry for its natural yellow-orange color. It is used worldwide as a food coloring enhancer in spices and herbal remedies. For quality control, the European regulations require that the melting temperature of curcumin lies between 179 °C – 182°C.
The solid to liquid transition of color additives such as curcumin can be difficult to detect with the naked eye due to their color profiles. METTLER TOLEDO’s Melting Point Excellence Systems offer a fully automatic method to measure the melting point of such substances.
Melting Point Measurement Principle
To verify the identity and purity of a crystalline substance, European regulations require a check of its melting point. Visually, this is observed at the point at which the last crystal of the substance melts. A pure substance has a sharp melting point, whereas an impure substance melts over a wide temperature range lower than the melting point of the pure substance.
In this application note, you will learn how to determine the melting point of curcumin using METTLER TOLEDO’s Melting Point Systems.
Download our free application note and benefit from our knowledge on measuring the melting point of curcumin.
