Lemon acid

Citric acid is a tricarboxylic acid used as a food additive, preservative and to add a sour taste to food.

In addition, it prevents the appearance of bad smell, mold, harmful microorganisms in prepared foods. "Lemon" is a white crystalline substance, soluble in ethyl alcohol and water. As an acidity regulator, the compound is labeled under the codes E330-E333. Its esters and salts are called citrates.

Citric acid is found in Schisandra chinensis, lemon (especially unripe fruits) and other citrus fruits, berries, needles. It has antitumor, rejuvenating and antibacterial properties. Improves digestion, removes toxins, cleanses the body. With moderate consumption, stimulates appetite, stimulates the pancreas, improves digestion.

Chemical formula − C6H8O7.

For the first time, citric acid was obtained from unripe lemongrass fruits in 1874 by the Swedish chemist Karl Scheele. On an industrial scale, it is produced by synthesizing mold strains and sugar or sugary substances.

The largest producers of citric acid in the world are China, Russia, which produce four hundred thousand tons of food additives per year.

Useful properties

The effect of citric acid on the human body:

  1. It has a beneficial effect on the digestive system: it removes slags, salts, accelerates the burning of carbohydrates in anaerobic conditions and the digestion of food. Promotes systematic weight loss.
  2. Normalizes the functioning of psycho-, neuro- and endocrine systems.
  3. Strengthens the immune system.
  4. Increases calcium levels in the body.
  5. Gives firmness and elasticity to the skin, stimulates cell renewal, eliminates wrinkles. To eliminate age spots and even out the tone of the face, citric acid is added to peels, whitening masks.
  6. Reduces food intoxication of the body. Therefore, it is recommended to take it to relieve the symptoms and consequences of a hangover.
  7. Has antiseptic properties. To get rid of a sore throat every 2-4 hours, rinse your mouth with a solution of citric acid (¼ teaspoon in 250 ml of warm water) for up to 3 days.

Useful properties of E330 concentrate depend on the area of ​​its use. However, before using the product for medicinal purposes, consult a doctor, as the acid has strict restrictions on use and can be harmful to human health.

Uses and contraindications

Areas of use of citric acid:

  1. In the food industry. Gives a balanced taste to dishes, drinks, from lightly salted cucumbers to fruit jellies. In addition, E330 is used in the manufacture of processed cheeses (to improve elasticity) and the preservation of fruits and vegetables (to maintain elasticity, "crunch" products, as a preservative). The additive plays a special role in the production of bakery products, since it functions as a leavening agent for dough. The combination of baking soda (E500) and lemon concentrate (E330) causes a violent reaction, accompanied by the release of carbon dioxide, which gives lightness and splendor to flour products.
  1. In everyday life. Due to the ability to dissolve calcium, citric acid helps to remove scale, plaque, rust from surfaces, therefore it is included in cleaning and detergents.
  1. In the cosmetic industry to improve, brighten the tone of the face, remove freckles, tighten enlarged pores. However, remember - a high concentration of the compound in skin care products causes a chemical burn of the epidermis. Citric acid makes the nail plate smooth, shiny, strong, while its too frequent use leads to the opposite effect: softening of the nail.
  1. In pharmaceuticals. E330 is part of drugs that improve energy metabolism. In addition, the sodium salt of citric acid (E331) is used in medicine to prevent blood clotting, reduce acidity in peripheral renal acidosis, as a laxative. A 5% solution of sodium citrate is used to determine the erythrocyte sedimentation rate according to the Pachenkov method, and 4% as an anticoagulant in the hardware delivery of donor blood components.

Excess intake of the compound with food can damage tooth enamel, cause exacerbation of gastritis, ulcers, burns and destruction of the mucous membrane, hematemesis. In case of contact with the eyes, on the skin - redness, burns, allergies. Inhalation of a dry preservative irritates the respiratory tract, accompanied by a coughing fit. Therefore, for safety reasons, use citric acid with caution only in a diluted form, adhering to the concentration indicated in the recipe.

Food additives E330 - E333 is a synthetic product that aggressively acts on tooth enamel, mucous membranes of the gastrointestinal tract. People with impaired kidney function, digestive organs are not recommended to use citric acid. It can start the inflammatory process, cause pain.


To avoid the appearance of microcracks on the surface of the tooth enamel, after each intake of foods, drinks and products containing "lemon", you need to rinse your mouth.

How it works

Citric acid has a diuretic effect. The principle of its action is based on the removal of excess fluid from the body, due to which saliva becomes viscous, a person's taste perception changes, the desire to eat is suppressed, which leads to a decrease in body volume.

According to the conclusion of the committee of the organization of health, the daily intake of citric acid should not exceed 120 milligrams per kilogram of body weight. It is optimal that this indicator be in the range from 66 to 80 milligrams per kilogram of weight.

In what cases does the body's need for citric acid increase?

With increased physical exertion, the manifestation of the consequences of stress, under the influence of extreme external factors.

When to limit the intake of citric acid?

With erosion of tooth enamel, hypersecretion of gastric juice, gastritis, stomach ulcer.

A possible sign of a lack of a compound in the body is the desire to eat something sour. Deficiency of organic acids causes alkalization of the internal environment, which is extremely rare. Considering the fact that the E330 food additive is used in cooking for the production of fizzy drinks, jelly, sweets, sauce, preservation, mayonnaise, ketchup, jam, tonic drinks and iced teas, people more often develop an overabundance of the compound in the body than a deficiency.

Overdose symptoms: inflammation and exacerbation of diseases of the digestive tract, sour taste in the mouth, tooth decay, abdominal pain, cough, vomiting. An excess of citric acid increases the content of calcium ions in the body, causes a burn of the mucous membrane of the gastrointestinal tract, oral cavity.


Foods containing citric acid:

  • blackcurrant;
  • cranberry;
  • cranberries;
  • raspberries;
  • lemons;
  • oranges;
  • grapefruit;
  • pineapples;
  • strawberries;
  • cherries;
  • apricots;
  • peaches;
  • quince;
  • rowan;
  • citrus juices;
  • tomatoes;
  • plums;
  • barberry;
  • gooseberries.

When baking confectionery and bakery products, citric acid can be replaced by lemon juice, and when canned, by vinegar.

The effect of citric acid on hair condition

The addition of E330 helps eliminate excessive oiliness of the scalp by narrowing the pores.

Due to the strong hardness of tap water, hair loses its natural shine after washing, becomes dull, brittle and lifeless. To give them a healthy glow, silkiness, it is recommended, after washing off the shampoo, rinse the hair with a solution with the addition of two grams of citric acid per liter of boiled liquid. After that, the hair does not need to be washed under running water, but it is worth waiting for their natural drying. In order not to dry out the scalp and tips, it is not recommended to use a hair dryer to accelerate the evaporation of moisture.

After rinsing the hair with lemon water, the hair will become soft, supple, and acquire a healthy, well-groomed appearance.

To restore weakened and brittle curls after dyeing, prepare a firming mask based on the E330 additive.

Preparation of the mask:

  • prepare 2 grams of citric acid powder, 5 grams of honey, 30 milliliters of aloe infusion, one egg yolk;
  • combine all ingredients except aloe infusion, mix until smooth;
  • add aloe infusion to the resulting mixture.

Apply the firming mask to the strands immediately after preparation, otherwise it will lose its beneficial properties. Spread the mixture along the length of the hair, leave for 30 minutes. After the specified time, wash off the mask with warm water without using a balm or shampoo. The duration of the course depends on the condition of the strands. The vitamin composition can be applied to the hair every other day until it acquires a natural shine and strength.

In addition to strengthening hair, citric acid is used to lighten hair in a natural way, without the use of chemicals. To do this, boil, cool the water, dissolve 5 grams of E330 in two liters of liquid. Apply the product regularly to washed hair 3-4 times a week. The lightening effect will become noticeable only if this procedure is performed systematically for at least a month.


Citric acid is a compound widely used in human everyday life. In small doses, it is not harmful to health.

The substance kills disease-causing organisms that cause infectious, colds. An excess of a substance is dangerous for people with gastrointestinal problems, kidneys.

In addition to being used in cooking, medicine, and cosmetology, the food supplement E330 promotes systematic weight loss. Drink acidified water throughout the day to shed extra pounds. The amount of citric acid introduced into the liquid depends on the phase of weight loss. Drink a drink before every meal. The average dosage is 2 grams per 250 ml.

This drink activates metabolic processes in the body, and in combination with honey, mint, ginger, it has an energy, rejuvenating effect.

Before dieting, consult your doctor.