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: Citric Acid
: Glucono Delta Lactone
: Lactic Acid
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Products > Acidulants
Citric Acid Glucono Delta Lactone
Lactic Acid Tartaric Acid
While having a significant effect on the flavour of food products, acidulants perform a variety of other beneficial functions:

Taste
The sharpness in the taste of any food is due to the presence of food acids. All fruits have these acids in some quantity and the result is the typical acidic taste normally associated with fruit.

Enhance fruit flavours
Naturally occurring food acids are citric acid, malic acid and tartaric acid. They are also called wholesome acids. They are found in oranges, grapefruits, pineapples, apples, peaches and other seeded fruits. Tartaric acid is found in grapes, pineapples and potatoes. Without the presence of these acids, fruits may taste bland.

Antimicrobial effect
Some acids, such as acetic acid and lactic acid, have an anti-microbial effect and are the basis for preservation by fermentation in products such as sauerkraut and pickles.

Reduce spoilage
The use of acids to reduce pH retards the growth of many spoilage organisms, especially bacteria, and also increases the effectiveness of food preservatives such as benzoates, sorbates and propionates.

Prevent discoloration
Acidification also retards the action of many natural enzymes that are involved in the discolouration of cut fruit and vegetables, and also increases the effectiveness of natural and added antioxidants.

Synergistic effect with Antioxidants
Some acids, such as citric acid, exert a synergistic effect with antioxidants through their ability to chelate metal ions that catalyse oxidation and bring about rancidity and deterioration.

pH Control
Acids are also used for pH control, particularly when the pH needs to be controlled to obtain the best gel strength in products such as pectin jellies and jams.

Buffering
Some products, particularly diet beverages, require some buffering to improve flavour. The addition of a small amount of Sodium Citrate can often enhance flavour.
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43 Maurice Road,
PO Box 12-347, Penrose,
Auckland 1642,
NEW ZEALAND.

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