Citric acid

What is citric acid

When drinking beverages or eating candy, I believe that you will find the word "citric acid" in the line of materials! What the hell is citric acid? In fact, citric acid is an edible acid. Adding citric acid to some foods has good taste and can promote appetite. For example, some jam, candy and drinks!

Is citric acid harmful to human body? Citric acid can enhance normal metabolism in the body, and an appropriate dose is harmless to the human body.

Although citric acid has no direct harm to the human body, it can promote the excretion and deposition of calcium in the body. For example, long-term consumption of foods containing citric acid may lead to hypocalcemia. Children show nervous system instability, excitability, autonomic nervous disorder, etc. Therefore, this is also one of the reasons why adults always refused to eat candy when they were young.

Effect of citric acid

Before we understand the application of citric acid in daily cooking and medicine, let's first understand the extensive use of citric acid. There are many opportunities for us to contact citric acid in our daily life. In fact, it can be found in some unexpected corners. Come and look for it.

Citric acid is widely distributed in the plant kingdom, such as lemon, gooseberry, raspberry, grape juice, etc. It can be extracted from plant raw materials or made by citric acid fermentation of sugar.

1, used in the food industry; Because citric acid has a mild and refreshing sour taste, it is widely used in the manufacture of various beverages, soft drinks, wine, candy, snacks, biscuits, canned fruit juice, dairy products and other foods. Of all the organic acid markets, citric acid has a market share of more than 70%, so far there is no sour agent that can replace citric acid.

2. Used in chemical industry and textile industry: Citric acid can be used as chemical analysis reagent, experimental reagent, chromatographic analysis reagent and biochemical reagent in chemical technology. Used as complexing agent and masking agent; Used to prepare buffer solution.

Formaldehyde pollution of clothing is already a very sensitive problem. Citric acid and modified citric acid can be made into a formaldehyde-free crease-resistant finishing agent for crease-resistant finishing of pure cotton fabrics. The anti-wrinkle effect is good and the cost is low.

3. For environmental protection: citric acid-sodium citrate buffer solution is used for flue gas desulfurization. Citric acid-sodium citrate buffer solution is a desulfurization absorbent with great development value due to its low vapor pressure, non-toxicity, stable chemical properties and high absorption rate of SO2.

4. For livestock and poultry production: citric acid can be added to piglet feed to wean early, improve feed utilization rate by 5% ~ 10%, and increase litter size of sows. Adding 1% ~ 2% citric acid to the diet of growing and finishing pigs can increase daily gain, reduce feed-to-meat ratio, increase protein digestibility, reduce back fat thickness, and improve meat quality and carcass characteristics.

5. Used in cosmetics: Citric acid is a kind of tartaric acid. Its main function is to accelerate cutin renewal. It is commonly used in lotions, creams, shampoos, whitening products, anti-aging products, acne products, etc. Exfoliation of cutin is helpful for exfoliation of melanin in skin, thinning of pores, dissolution of blackheads, etc.

6. Used for sterilization: Lemon, which enjoys the reputation of "King of Western Food", has a strong sterilization effect and is good for food hygiene. In addition to the faint scent of lemon, people have always liked to use it to make cold dishes, which are not only delicious and refreshing, but also can stimulate appetite.

7. Used in medicine: Citric acid is used as anticoagulant in vitro when blood transfusion or laboratory blood samples are anticoagulated.

8. Medicinal Value:

(1) Citric acid can prevent and eliminate skin pigmentation. Chinese traditional medicine believes that lemon is warm, bitter and non-toxic, and has the functions of quenching thirst, promoting fluid production, dispelling summer heat, preventing miscarriage, dredging stagnation, invigorating stomach, relieving pain and other functions of diuresis, regulating vascular permeability, and is suitable for mm with edema, deficiency and obesity.

At the same time, smokers should eat more lemons because they need twice as much vitamin C as non-smokers. Lemon has low calorie and strong contractility, so it is good for reducing fat and is a good medicine for weight loss. Lemon can prevent cardiovascular arteriosclerosis and reduce blood viscosity. Hot lemon juice and honey are very effective in treating bronchitis and nasopharyngitis. Gandhi moistens lung, quench thirst sourly, stimulate appetite and relieve alcoholism, whiten skin, moisten skin and reduce cholesterol. The rest can be applied on the face to treat facial spots and pimples.

(2) Dispelling phlegm: Less known is that lemon can also remove phlegm, and its efficacy is stronger than orange and mandarin. Add warm water and salt to lemon juice, and drink it to successfully cough up thick phlegm accumulated in throat, which is very effective. At the beginning of a cold, you may as well use lemon and honey to flush and drink, which can relieve sore throat and reduce dry throat discomfort.

In addition, drinking a cup of lemonade before entering any food every morning not only can strengthen gastrointestinal peristalsis, treat constipation, expel toxins from the body, achieve the effect of beauty, but also can remove bad breath and halitosis.

The Wonderful Use of Citric Acid

In addition to some of the above effects, citric acid actually has some clever applications, which can be used in our daily life, and mothers can learn from it.

1. Citric acid can be used for gastric acid and stomachache after drinking. It is a good choice for people who often drink gastric acid. Eating fruit or food containing citric acid after gastric acid will have a mild effect. However, the gastric acid after drinking is caused by no food or not much food in the stomach when drinking, and it is necessary to drink healthily.

2. Regular drinking of yoghurt: lactic acid and other organic acids such as citric acid and portuguese mixed acid contained in yoghurt, and their dilutions also have obvious sterilization and anti-corrosion effects. They are known as "cleaning agents" for mucosal tissues. They help soften the sticky surface layer of skin and remove dead old cells. In the process, wrinkles are also eliminated.

3. Eating fruit to lose weight is one of the favorite methods used by many women. Each 100g lemon contains only 24 calories. Citric acid in lemon can promote calorie metabolism, and its vitamin C content is the best in fruits, with good whitening effect and low calorie. Women who like beauty and want to be thin can eat it in an appropriate amount, but avoid eating on an empty stomach. Other fruits such as litchi, orange and grape are all good products rich in citric acid.

But at the same time, it should be noted that patients with vitiligo cannot take anything that contains acids such as citric acid.