Application of lactic acid

1. Application of lactic acid
Lactic acid, also known as hydroxypropionic acid, has a molecular formula of
CH3CHOHCOOH and a molecular weight of 90.08. It is a natural organic acid and one of the
main components of yogurt. It also exists in the blood and muscle tissues of humans and
animals.
The food additive, lactic acid, is made from starch sugar or carbohydrates and fermented by
Lactobacillus or Rhizopus oryzae.
Food additives of lactic acid
Lactic acid characteristics
1. It has a soft sour taste, and the sour taste lasts for a long time.
2. Weak organic acid, suitable as pH regulator.
3. With antiseptic effect, it can effectively inhibit the growth of pathogenic microorganisms
and extend the shelf life of food.
4. Low volatile liquid, easy to use.
Application of lactic acid
1. Dairy products
Lactic acid is a natural and inherent component in dairy products. It has a soft sour taste and
good antimicrobial effect. As a sour agent, it has been widely used in flavored fermented milk,
cheese, ice cream and other foods.

2. 2. Meat products
Lactic acid is a natural organic acid, which is used for pollution control in the production and
processing of meat products and the growth of spoilage bacteria in the products, and
prolongs the shelf life of the products.
3. Noodle products
Sodium lactate is hygroscopic. Adding sodium lactate to raw ramen noodles, dumpling
wrappers and wonton wrappers can effectively prevent the water inside the product from
flowing to the surface, keeping the surface properly dry and not sticky; sodium lactate can
effectively reduce the activity of water molecules, so it is antiseptic It can extend the shelf life
of the product.
4. Candy
Buffered lactic acid has a mild sour taste. Adding buffered lactic acid to candies can reduce
the sugar conversion rate and extend the shelf life. Powdered lactic acid can make the soft
candy look better and greatly reduce the occurrence of surface moisture. Calcium lactate is
used in chewing gum to stabilize the colloid and adjust the pH. At the same time, calcium
ions can prevent the loss of calcium in the teeth and achieve the effect of strengthening and
protecting teeth.
5. Health Products
Calcium lactate, magnesium lactate, zinc lactate, and ferrous lactate can strengthen minerals
in sports health drinks, fruit juices, diet foods and baby products. The water solubility is better
than gluconates, the taste is moderate, and it is easy to be absorbed and utilized by the body,
which can enhance Human body function, improve immunity, enhance explosive power

3. 6. Pickled products
Lactic acid can effectively adjust the pH value of foods such as pickles, jams, bacon and
sausages, prevent spoilage, extend the shelf life of products, and maintain food color and
improve taste.
7. Seasoning
The unique sour taste of lactic acid can increase the deliciousness of food. Adding a certain
amount of lactic acid to salads, soy sauce, vinegar and other condiments can inhibit the
growth of microorganisms in the product, improve safety, and increase the flavor of the
product.
8. Drinks and alcohol
The acidity of lactic acid is mild and moderate, and it can be used as the first choice sour
agent for carefully formulated soft drinks and fruit juices.
Calcium lactate, ferrous lactate, magnesium lactate, zinc lactate, etc. are used as mineral
fortifiers in fruit juices, health drinks and soft drinks.
When brewing beer, adding an appropriate amount of lactic acid can not only adjust the pH
value to promote saccharification, which is beneficial to yeast fermentation, shorten the
fermentation cycle, but also increase the beer flavor and extend the shelf life.
Used in white wine, sake and fruit wine to adjust pH, prevent the growth of bacteria, enhance
sourness and refreshing taste.

4. Ethyl lactate has a special rum, fruit and cream aroma, and is used as a flavoring agent in
liquor and fruit wine.