Tannic Acid CAS 1401-55-4

Factory Supply Tannic Acid CAS 1401-55-4 with Best Price

  • Appearance: Yellow powder
  • Purity: 99. 0%min
  • Stock: In stock
  • Sample: Available
  • Zhishang Chemical: Tannic Acid Supplier & Manufacturer

Basic Info

What is Tannic Acid?

Tannin is called tannic acid in Chinese, and it is one of the two phenolic compounds contained in wine, especially in red wine. When the mouth feels dry and the oral mucosa wrinkles after the wine is drunk, it is the effect of tannins.

Tannic acid is also known as Chinese tannin and gallic acid. The structure is still unclear, but it is generally believed to be an ester formed by combining five hydroxyl groups of glucose with galloyl galloyl groups. Gallnuts can be made into industrial tannic acid after extraction and concentration. After refining, it can be made into medicinal or reagent tannic acid.

Tannic acid is a kind of polyphenolic compound, which widely exists in plants and has various biological activities such as antibacterial, antiparasitic, antiviral, antioxidative, anti-inflammatory, and immune regulation. Therefore, tannic acid is the main research direction of natural substitutes for antibiotics in feed. Plant tannic acid has a strong protein affinity and has been successfully used in ruminant nutrition to reduce the degradation of rumen protein, thereby improving protein utilization and animal production efficiency. Adding tannic acid-containing feed to ruminant diets also has three important functions, namely, controlling animal flatulence, intestinal parasites and pathogenic bacteria. Tannin has traditionally been considered an “anti-nutritional factor” in monogastric animals and poultry, but recent studies have shown that tannin, when properly applied, improves the gut microbial ecosystem and enhances gut health, thereby increasing production performance. The suitability of plant tannins as a substitute for antibiotics in feed depends on a number of factors that contribute to the large variability in their observed effects.

Tannic Acid Uses

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History of Tannic Acid

A brief history In 734 A.D. (the 22nd year of Tang Kaiyuan), Chen Zangqi had listed Galla gall in the Pharmacopoeia in “Supplements to Materia Medica”. In “Compendium of Materia Medica” written by Li Shizhen in the Ming Dynasty, there is a record of Galla gall that “the leather is made into a hundred medicines for decoction, dyed with soap color, and used for a long time”.

In 1862 Galla went as far as Europe. In 1887, S. Mierzinski used Chinese gallnut to essence tannin as a tanning material. In 1936, Li Fuhua as well as others composed a paper introducing Galla galla as well as its utilization in China. Around 1940, Wu Bingyan, Wei Wende, Fang Xinfang as well as others from China Huanghai Chemical Market Co., Ltd. studied the method of removing tannin as well as fermenting gallic acid from Galla chinensis. During the same duration, factories were established in Shanghai and Chongqing to create tannic acid as well as gallic acid. In 1957, Shanghai Renji Chemical Manufacturing facility relocated to Guizhou, the manufacturing area of Galla, and built a second chemical manufacturing facility in Zunyi City to proceed production. In 1988, Hubei applied brand-new innovation as well as brand-new devices to build a modern-day tannic acid (series item) manufacturing facility in Zhushan Region. There are also a number of small-scale tannin workshops in Henan, Shaanxi, Hunan, Yunnan as well as various other provinces. The annual production capability of national tannic acid factories (workshops) has to do with 3,000 lots.

Because the 1830s, Turkey, Peru, as well as Venezuela have together used Turkish gall (likewise called dyed oak gall) and tara skins to create tannic acid or gallic acid. It is still refined and made use of.

Preparation of Tannic Acid

At present, the production of industrial tannic acid basically still uses the traditional production process, and the industrial-grade tannic acid product is obtained from gallnut through crushing, solvent extraction, evaporation concentration, and spray drying. The new horizontal type continuous extractor designed by Zhang Zonghe and Chen Jiahong was successfully applied to the production of tannic acid, which shortened the extraction time and improved the quality and yield of the product.

CN201110311402.X designed a process for extracting tannic acid from Galla chinensis with simple process, high extraction efficiency, energy saving and environmental protection. In order to achieve the above object, the technical solution proposed by the present invention is: a kind of technique of extracting tannic acid from Galla galla, it is characterized in that: comprise the steps:

Step 1: crushing gallnuts, purifying them, and leaching them in hot water at 30-50°C for 1-3 hours to obtain a tannic acid extract;

Step 2: The tannic acid extract is subjected to ultrafiltration and 0.3-1 times volume pure water circulation filtration to obtain tannic acid concentrate and ultrafiltration dialysate, and the ultrafiltration membrane molecular weight cut-off used in the ultrafiltration filtration is 1000-4000;

Step 3: The tannic acid concentrate is spray-dried to obtain a tannic acid product.


  1. Tannic acid – WikiPedia
  2. CN201110311402.X A process for extracting tannic acid from gallnut

Tannic Acid Supplier and Manufacturer

As a tannic acid supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best tannic acid raw materials to customers all over the world.

Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.

If you have a demand for tannic acid and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.

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