Citric Acid Taste Test.

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Presentation transcript:

Citric Acid Taste Test

Citrus Acid

What products contain citric acid? Stock cubes especially chicken. Soft drinks - almost all of them Jams and fruit preserves Canned tomatoes Canned fruit Fruit flavor sweets - especially fizzy or sour ones. Citric acid is a major ingredient in sherbet! Some ice creams Convenience foods: especially tomato-based sauces.

Threshold Humans vary in their responses to different stimuli The threshold of a stimulus is the lowest level that provokes a response

Concentration A term used to quantify the amount of a substance that is dissolved Adding water to a solution dilutes the concentration of any dissolved substances and can change the properties of the solution The concentration of a dissolved substance can be expressed in ppm or ppb 1,000 ppm

Why did the samples you tasted , taste different? Different concentrations of citric acid

Solvent is a substance that dissolves a solute A solvent is usually a liquid ( water) A solute is a substance dissolved in a liquid (citric acid powder) Quantitative is a numerical value (quantity) Qualitative is a non numerical value ( quality or qualities of something)(size, appearance)