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Food Additives-Tartaric Acid Series
What is tartaric acid?
Tartaric acid is a dihydroxysuccinic acid,
It exists in plants such as grapes and tamarind, and is also one of the main organic acids in wine.
Pasteur was the first to discover that tartaric acids with different structures have different optical rotations, like a pair of gloves, which is also called “chirality”. Pasteur’s discovery can be said in the history of chemistry. is a milestone
There are three chemical isomers of tartaric acid, namely L(+)-tartaric acid (dextrorotatory), D(-)-tartaric acid (levorotatory) and Meso-tartaric acid (meso). Generally, the tartaric acid obtained by chemical synthesis is DL-tartaric acid (racemic) with 50% right-handed and 50% left-handed; L(+)-tartaric acid is a natural configuration, also known as d-tartaric acid, which is widely present in many Plants such as grapes and tamarind fruit. D(-)-tartaric acid is present in the fruits and leaves of the beetle, and it is also known as l-tartaric acid. L(+)-tartaric acid and D(-)-tartaric acid can be obtained by converting epoxysuccinic acid by different biological enzymes, or by chemically splitting DL-tartaric acid.
Application of tartaric acid:
Tartaric acid has three different structures
It serves us like a magician who changes incarnations
Create infinite wonderful for our life
The starting material for the biosynthesis of L(+)-tartaric acid is the same as that of DL-malic acid, so the biosynthesis of L(+)-tartaric acid, like DL-malic acid, has been purchased and used by most large international food companies and is widely used in the following areas.
- Wine acidifier
L(+)-tartaric acid is known as the gem in red wine and is the most important acid-adjusting agent in wine; in addition, L(+)-tartaric acid is also the only organic acid that is not absorbed by the human body, so it is used in in premium drinks
- Drug splitting agent
L(+)-tartaric acid is the most important resolving agent for chemical resolution in the synthesis of chiral compounds; it is also a salt-forming agent for some drugs
- Food emulsifier
L(+)-tartaric acid is the main raw material of food emulsifier DATEM. Emulsifier DATEM has strong emulsifying, dispersing and anti-aging effects, and is a good food emulsifier and dispersant. It can effectively enhance the elasticity, toughness and air retention of the dough, prevent the dough from aging, increase the volume of bread and steamed bread, and improve the dough structure. In addition, DATEM is also widely used in butter, non-dairy creamer, ice cream and other foods
- Gypsum retarder
L(+)-tartaric acid is the most important retarder in building materials gypsum, and it is also the best retarder among gypsum retarders so far; in addition, it can also be used as a cement retarder, especially for self-flowing retarder for flat cement
- Cosmetic raw materials
L(+)-tartaric acid is also used as a slimming tea and cosmetic ingredient
- Metal polish
L(+)-tartaric acid is a strong complexing agent for metal ions, so it is used as a cleaning agent and polishing agent for metal surfaces
Tartaric acid series products:
The development history of tartaric acid:
Tartaric acid was first discovered in 1769 by the Swedish chemist Karl Wilhelm Scheler.
Presence and preparation
L-Tartaric acid is a natural product that is widely found in fruits, especially grapes. It is the cheapest photoactive tartaric acid and is often referred to as “natural tartaric acid”. Industrially, the source of L-tartaric acid is still a natural product. L-tartaric acid can be obtained by acidification of tartar, a by-product of wine brewing. Italy is the world’s largest producer of L-tartaric acid, which is not unrelated to the scale of the country’s winemaking.
D-Tartaric acid is rare in natural products, but is present in relatively high amounts in a plant of Mali, West Africa