Food Color Testing

Various analyzes and controls are carried out to determine food quality. Within the scope of these studies, chemical analyses, physical analyzes and organoleptic analyzes are carried out. Organoleptic analyses; It is carried out to determine sensory features such as vision, smell, taste, touch and hearing.

To determine the quality indicator of food and its acceptability by the consumer, the first thing to pay attention to is its color. Color in foods can be determined by a simple color chart or by instrumentation.

Color is determined in foods using a colorimeter. With the use of colorimeter, color value in foods can be reported according to L*, a* and b* values.

The L* value indicates the degree of lightness from black to white. It gives values between 0 – 100.
If the a* value is negative a, the color is green, and if it is positive a, the color is red. It gives values between -127 and +127.
If the b* value is negative b, the color is blue, and if positive b, the color is yellow. It gives values between -127 and +127.

Consult Nanolab Food Analysis Laboratory for Food Color Testing.