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Water Soluble Food Grade Tannic Acid Galla Chinensis Extract from China Suppliers - Gallnut Extract Factory CAS 1401-55-4

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Product Name Galla Chinensis Extract
Specifications Tannic acid≥80%/93%/96%
Active Ingredient Tannic acid
CAS No: 1401-55-4
Water-Solubility 100% Water Soluble
Appearance: Brown to light brown powder
Part Used Fruit
Botanical Source Galla Chinensis
Kosher Status Yes
Test Method HPLC
Place of Origin China

What is Tannic acid?

Tannic acid, also known as tannin, is a natural polyphenolic compound extracted and purified from plant galls, bark and fruits through advanced extraction and refining processes.
Tannic acid features prominent properties including astringency, antioxidant, antibacterial and deodorant effects.

Product: Tannic acid

CAS No.: 1401-55-4

Molecular Formula: C76H52O46

Molecular Weight: 1701.2

Solubility: Freely soluble in water and ethanol, slightly soluble in acetone

Extraction: Water extraction, purification, crystallization

Main Specifications:

• Tannic acid 80%: Brownish yellow powder, Industrial Grade

• Tannic acid 93%, 96%, 98%: Light brownish yellow powder, Food Grade, The water solution is clear without any precipitation

Usage of tannic acid products

Used as a food antioxidant.

Used as a viscosity reducer and filter loss reducer for water-based drilling fluids.

Used for leather tanning.

For skincare products, it can prevent sun damage and brighten the skin.

Clinically used to treat local bleeding, it can be used for toothpaste teeth protection and to prevent gum bleeding.

Used as a clarifying agent for low alcohol liquor and fruit wine.

Used for chromium free passivation of galvanized coatings.

What is the function of Tannic acid ?

Tannic acid, a natural polyphenolic compound, exhibits diverse biological activities. Its core benefits include:

Antibacterial and Antiviral Effects: It inhibits various bacteria, fungi, and viruses (e.g., influenza and herpes viruses) by disrupting pathogen cell membranes or suppressing enzymatic activity.

Anti-Inflammatory and Antioxidant Properties: It reduces the release of inflammatory factors, alleviating redness, swelling, and pain while scavenging free radicals to mitigate oxidative stress and protect cellular health.

Astringent and Hemostatic Actions: It promotes protein coagulation, constricts blood vessels, and accelerates wound healing, often used for superficial injuries.

4. Tumor Suppression: Studies indicate it can induce cancer cell apoptosis and block tumor angiogenesis, showing potential as an adjunct antitumor agent.

Additionally, it helps improve gut microbiota balance and inhibits fat absorption.

Application area of Tannic acid

Tannic acid is widely utilized across multiple industries:

Pharmaceuticals: Used as a hemostatic agent, antimicrobial ingredient (e.g., in ointments and mouthwashes), and antiviral drug component, also treating diarrhea and oral ulcers.

Food Industry: Serves as a natural preservative (inhibiting microbes), clarifying agent (e.g., in beer and juice processing), and flavor enhancer in alcoholic beverages.

Cosmetics: Incorporated into skincare products (pore-tightening, oil-control, anti-acne) and sunscreens (antioxidant and UV protection).

4. Textiles and Dyes: Functions as a mordant to fix dyes and improve color fastness, and is used in leather tanning (softening and durability).

5. Environmental and Agricultural Uses: Treats industrial wastewater (precipitating heavy metals) and serves as a pesticide additive (suppressing pests and pathogens). Its natural properties align with green sustainable development trends.

Product specification of Tannic acid

ANALYSIS	SPECIFICATION
Appearance	Brown to light brown powder
Odor	Characteristic
Tasted	Characteristic
Sieve Analysis	NLT 95% pass 80 mesh
Moisture	≤10%
Tannic acid	≥80%/93%/96%
Total Heavy Metal	≤10ppm
Pb	≤3ppm
As	≤2ppm
Cd	≤1.0ppm
Hg	≤0.1ppm
Total Plate Count	≤10,000cfu/g
Yeast & Mold	≤1,000cfu/g
Enterobacteriae	≤10cfu/g
E.coli	Absent in 10g
Salmonella	Absent in 25g

Frequently Asked Questions (FAQ)

Q: What are the primary extraction sources of tannic acid?

Tannic acid is a natural polyphenolic compound extracted and purified from plant galls, bark, and fruits using water extraction, purification, and crystallization processes.

Q: What grades and purity specifications are available?

Main specifications include Industrial Grade (80% brownish yellow powder) and Food Grade (93%, 96%, 98% light brownish yellow powder, which dissolves clear in water without precipitation).

Q: What is the solubility profile of tannic acid?

Tannic acid is freely soluble in water and ethanol, and slightly soluble in acetone.

Q: How is tannic acid applied in food and beverage processing?

In the food industry, it is widely utilized as a natural antioxidant, a preservative, a clarifying agent for low-alcohol liquor and fruit wine, and a flavor enhancer.

Q: What biological functions make tannic acid beneficial for pharmaceuticals and cosmetics?

It offers antibacterial, antiviral, antioxidant, and anti-inflammatory properties, alongside astringent and hemostatic actions, making it ideal for treating bleeding, oral ulcers, pore tightening, and sun damage protection.

Q: What are the industrial and environmental applications of tannic acid?

It is used for leather tanning, dye fixation in textiles, drilling fluid viscosity reduction, chromium-free passivation of galvanized coatings, pesticide formulation, and wastewater heavy metal precipitation.