What is Gluconic Acid E574 in Food? Uses, Safe, Side Effect

What is Gluconic Acid E574 in Food? Uses, Safe, Side Effect


Table of Contents

Gluconic acid and gluconates are food additives used in the production of soft drinks, canned food and chewing gum. They are also sometimes used for treating wine and decontaminating grape juice. Gluconates are usually food grade as a preservative or to preserve the taste of a product. Gluconic acid comes in two forms: calcium gluconate or magnesium gluconate.

What is gluconic acid?

Gluconic acid is a carboxylic acid with the formula HOCH(COOH)CHOHCH(COOH). Glucose is the most common sugar molecule in living things. Glucose can exist as a monosaccharide, or it can be combined with other sugars to form disaccharides (two glucose molecules) or oligosaccharides (many glucose molecules). It is a colorless solid that dissolves in water to give gluconic acid solutions. Gluconic acid has a number of industrial uses including as a chelating agent and sequestering agent, as well as in food products and cosmetics.

In organic chemistry, gluconic acid is an important dicarboxylic acid. Its name derives from its occurrence in glucose (hence the suffix “-ic”). It can be prepared by oxidation of glucose or by the fermentation of sugars through gluconobacter oxydans.

Natural sources

Natural sources of this compound include fruit, wine, honey, rice, meat, and kombucha.

How is gluconic acid made?

Glucose is a monosaccharide commonly found in nature. It is also known as dextrose because it is one of the three stereoisomers of glucose, along with fructose and mannose. Glucose can be synthesized by plants, bacteria, fungi and animals. It serves as a major source of energy for humans and other animals.

It can be found in many foods including fruits and vegetables, dairy products and grains. It is also used as an additive to enhance flavor in processed foods such as soft drinks, candy and desserts.

Gluconic acid is a dicarboxylic acid that is formed when glucose undergoes oxidation by oxygen radicals that are present in the air or water.

What are gluconates?

Gluconates are simple carbohydrates that are derived from glucose. They are used as food additives, such as calcium gluconate, sodium gluconate and copper gluconate.

  • Calcium gluconate: Calcium gluconate is the calcium salt of gluconic acid. It is a white powder with a salty taste and odor. It is used in baked goods to help retain moisture, in confectionery products to provide tartness and to prevent syneresis, and in dairy products as an anti-caking agent. It also helps preserve canned foods by preventing the formation of calcium carbonate crystals within the cans’ walls.
  • Sodium gluconate: Sodium gluconate is a white crystalline powder that is derived from sucrose (commonly known as table sugar). It has a salty taste with an earthy aroma. Sodium gluconate is used in the food industry as an emulsifier or stabilizer in processed meat products, such as hot dogs or sausages; it can also be added to marinades to prevent them from turning brown when cooked.
  • Copper gluconate: Copper gluconate is a blue-green solid powder that is commonly used in nutritional supplements
  • Ferrous gluconate: A nutrient supplement that can be added to infant formula as well as a food colorant.
  • Manganese gluconate: The addition of this nutrient supplement to baked goods, dairy products, meats, poultry, and infant formulas can make them more nutritious.
  • Zinc gluconate:  nutrient.

How does gluconic acid benefit your health?

Gluconic acid is a naturally occurring organic compound that is widely used in food and pharmaceutical industries. It is generally considered safe for human consumption and has been approved by the Food and Drug Administration (FDA). Gluconic acid is also widely used as a preservative as well as an anti-oxidant in many foods, including baked goods, breads, gum bases, confectionery products and other foods that are susceptible to rancidity or spoilage.

Gluconic acid offers several health benefits including:

  1. Reduces cholesterol levels
  2. Promotes optimal blood sugar levels
  3. Aids in weight loss through appetite suppression
  4. Antibacterial properties
  5. Helps to prevent cancer
  6. Supports immune health
  7. Prevents heart disease


Other Names
  • D-gluconic acid
  • Dextronic acid
  • Pentahydroxycaproic acid
CAS Number 526-95-4
Chemical formula C6H12O7
Molecular Weight 196.155
Melting Point 131 °C



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In the chemical structure, there are five hydroxyl groups and one carboxylic acid group.


The food-grade solution contains about 5% glucono delta-lactone at room temperature, and is commonly 50% solution in water with a colourless to light yellow color. The cyclic ester GDL (glucono delta-lactone) exists in stable equilibrium with gluconic acid in aqueous solution.


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In water

The solubility is 100g/100ml at 25°C, making it freely soluble in water.

In organic solvents

It is slightly soluble in alcohol, but insoluble in ether and most other organic solvents.

PKa & PH

Gluconic acid is a weak carboxylic acid with a dissociation constant of 3.6. A proton and the gluconate ion (conjugation) are released when it dissociates. Its aqueous solution has a pH of neutral.

What are the application of gluconic acid?

The uses of Gluconic acid are many. The most common use of gluconic acid is in food. It is also used in animal nutrition, cosmetics and industrial processes.


Gluconic acid is used as a food additive to control acidity and to prevent mold in certain foods. It can be found in bakery goods, dairy products, some food and beverage (soft drinks), and some vitamin preparations.

Gluconic acid may also be used as a preservative in other foods such as canned fruits or vegetables, pickles, jams, jellies, preserves, canned fish or meat products that have been heat processed to kill spoilage organisms but not cooked prior to canning; it prevents spoilage by inhibiting molds from growing on the surface of these foods. It is also used to improve the flavor of certain wines and beers. In addition to this, gluconic acid can be added to fruit juices to decrease their pH levels which makes them more acidic.

Animal Nutrition

When animals are fed with foods that contain carbohydrates, gluconic acid may be added as an additive so that they can absorb more nutrients from their diets. This helps improve their health and growth rates.


Gluconic acid is used in cosmetics such as toothpaste, mouthwash and hair conditioners to prevent bacterial growth on these products which could lead to infections or other health problems if left unchecked. In addition to this, it can be used as an antiseptic agent which prevents fungal growth on surfaces such as floors, walls and countertops by killing off any pathogens that might be present on these surfaces before they can cause harm.

Industrial uses

Chelation of calcium, iron, copper, and aluminium in alkaline conditions is more powerful than EDTA’s ability to chelate heavy metals. In detergents, electroplating, textiles, etc., this property can be utilized.

Is gluconic acid safe for eat?

Gluconic acid is a type of organic acid that occurs naturally in the body. It’s also used as a food additive.

It’s found in fruits, vegetables and honey and is also produced during fermentation processes such as brewing beer and making yogurt.

Gluconic acid is sometimes used as an asthma treatment, but it can be harmful if taken in large doses.

The Food and Drug Administration (FDA) considers gluconic acid safe for consumption at levels up to 0.5 percent in fruit juices, canned citrus juices or canned applesauce. It’s also approved for use in carbonated beverages, frozen desserts and other foods.


The nutrient D-gluconic acid can be added to food as a supplement.


As an authorised food additive, glutonic acid (E574) falls into the category of “additives other than colours and sweeteners” in EU Regulation (EU) No 231/2012.

Approved uses

Glutanic acid is classified in Group I, which means its use is “quantum satis” as well as the same levels of use as other chemicals.

Food Standards Australia New Zealand

Australia and New Zealand have approved it as an ingredient with the code number 574.

Is aluconic acid toxic?

Gluconic acid is a dicarboxylic acid. It is made by the oxidation of glucose and is found in nature as a product of fermentation. It can also be synthetically produced.

Gluconic acid has many uses, including as an antioxidant, food additive, and preservative. Gluconic acid is added to foods to enhance sweetness and improve shelf life. It is also used as a chelating agent in metal finishing processes, such as electroplating.

Gluconic acid is not considered toxic at normal levels of exposure, but high doses may cause nausea, vomiting, diarrhea and abdominal pain. Ingestion of high amounts of gluconic acid can cause severe metabolic disturbances and even death by acute renal failure.

Is gluconic acid aame as glycolic acid?

Glycolic acid and gluconic acid are two very different types of alpha hydroxy acids (AHAs). They both exfoliate the skin, but that’s about where the similarities end.

Glycolic acid is derived from sugar cane and is a water-soluble AHA. It dissolves in water, so it can be used in many different formulas, including lotions and creams. Glycolic acid also has anti-aging properties that work to improve the appearance of fine lines and wrinkles.

Gluconic acid is found naturally in apples and other fruits like pears and persimmons. It’s soluble in water, but not as much as glycolic acid. Gluconic acid also has anti-inflammatory properties that help reduce redness and irritation on the skin caused by acne breakouts or sun damage.

The main difference between glycolic acid and gluconic acid is their concentration levels: glycolic acid typically ranges between 5% – 30%, while gluconic acid ranges between 1% – 5%.

Is gluconic acid good for Skin?

Glucose, or more specifically, gluconic acid, is a naturally occurring compound that has been used for years by people with sensitive skin. It’s a safe alternative to other skin care ingredients that can cause irritation and allergic reactions.

Gluconic acid is found in many fruits and vegetables, especially apples, pears and grapes. It’s also used in toothpaste as an alternative to fluoride and can be found in mouthwash formulas. In addition to being naturally derived from fruits and vegetables, it can also be made in a laboratory setting.

Uses of Gluconic Acid for Skin Care

Gluconic acid has been shown to help treat acne by preventing bacteria from sticking to the skin’s surface. When this happens, the bacteria cannot multiply which helps prevent pimples from forming. It also reduces inflammation caused by acne breakouts and helps remove excess oil so your pores aren’t clogged up with debris.

Gluconic acid is often combined with other ingredients such as Vitamin C or salicylic acid because it helps boost their effectiveness at treating acne-prone skin types while also working well on its own for those with sensitive complexions.

Gluconic acid vs Gluconates

Gluconic acid is a dicarbonyl acid, consisting of carbon, oxygen and hydrogen. It can be made from glucose by fermentation or oxidation. Gluconic acid is used in the manufacture of adhesives, antiseptics, disinfectants, detergents and food additives.

Gluconates are salts of gluconic acid. They are formed when gluconic acid combines with an alkali metal carbonate or bicarbonate. Gluconate salts are strongly alkaline and can be used as antiseptics and antibacterial agents.

Where to buy gluconic acid?

Gluconic acid is a white crystalline powder that is used in food and cosmetic industries. It is easily soluble in water, but insoluble in ethanol. Gluconic acid is also known as gluconate, glucosiduronic acid or glucuronic acid.

Gluconic acid can be purchased from various online stores like Amazon and eBay. You can also find it at local pharmacies and grocery stores.

The following are some of the best places to buy gluconic acid:

Amzon: Amazon offers a wide range of products including food items, beauty products, clothing and accessories etc. In addition to this, you will get great deals on all products available at Amazon.

Ebay: ebay has been around for over 20 years now and continues to grow with each passing day. The site offers all kinds of products including electronics, clothes, footwear etc., making it easy for you to find whatever it is that you want without having to run around different shops looking for it!

Gluconic Acid FAQs

What is it made of?

Gluconic acid is a chemical compound with the formula HOCH(OH)CHCOH. It is a monobasic acid, meaning it has only one functional group. Gluconic acid has the same number of carbons, hydrogens and oxygens as gluconolactone (HOCH(OH)CHCOH), another form of gluconic acid. The difference is that gluconolactone is stable in water, while gluconic acid is not.

Gluconic acid can be produced by hydrolyzing glucose with dilute sulfuric or phosphoric acids or by fermentation with Acidithiobacillus thiooxidans under aerobic conditions.

Is it Vegan?

Gluconic acid is vegan because it is made from products that come from a plant source as opposed to animal products. It can also be used to make vegan yogurt and buttermilk substitutes.

Is it Natural?

Gluconic acid is a naturally occurring organic compound that is made by many different types of living organisms. Gluconic acid is found in a variety of fruits and vegetables, including apples, pomegranates, mangoes and tomatoes. It is also produced by bacteria in the intestines and saliva of humans and other mammals.

Gluconic acid has a relatively low toxicity for humans and animals, but it can irritate the skin if it comes into contact with it. Since gluconic acid is found in plants and animals, it may be appropriate to say that this substance is “natural.”

Gluconic acid can be produced from glucose through a chemical process known as fermentation. This process occurs when yeast or another type of fungus breaks down glucose molecules into smaller components such as carbon dioxide (CO2), water (H2O) and ethanol (CH3CH2OH). The process yields both gluconic acid and CO2 gas as waste products.

Is it Gluten free?

Yes, Gluconic Acid is gluten free. It’s made from corn, which is a gluten-free ingredient.

Gluconic Acid is used in bread and cake mixes to help provide better texture and volume. It also acts as an acidulant, which means it can help create a more acidic environment for yeast to grow in.

It can also be used as an emulsifier in foods that are naturally high in fat or oil content. This helps keep the fat from separating from the other ingredients in your recipe, so you don’t need to use as many eggs or other binding agents like flour or dairy to hold everything together.

Does glucuronic acid work the same way?

Glucuronic acid is a molecule that is made up of carbon, oxygen, hydrogen, and nitrogen. It has two carboxyl groups attached to it, which makes it a carboxylic acid. The molecule also has an additional hydroxyl group on one end and an amine group on the other end. When these groups are broken down through chemical reactions, they can react with one another to form glucuronide conjugates (i.e. molecules with multiple sugars attached).

Glucuronic acid is a natural substance, which is also called glucuronide. It is a type of chemical compound that is made up of sugar and carbon.

It is found in all living cells. The most important function of glucuronic acid is to bind toxins and other harmful substances so that they can be removed from the body through urine or bile.

Glucuronic acid has many other benefits as well. It helps in the proper functioning of the liver, kidneys and intestines. It also helps to regulate blood pressure and cholesterol levels in your body.


Gluconic acid is a food additive, classified as an alpha-hydroxy acid. It is used as an excipient (a substance added to a drug to aid solubility and prolong shelf life) and also as a flavoring agent. It is produced from glucose through an enzymatic process. Gluconates are salts of gluconic acid that can act as food preservatives and raising agents, among other things.

Sophie Feng

Sophie Feng

Sophie Feng is the author of gradechemical.com, she is the co-founder of the grade chemical network. She has been in grade chemical company since 2017, with a working knowledge of food chemical .

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