Supply 99% Catechinic Acid Cianidanol Powder

Details:

What's Catechinic Acid

Product Name	Green Tea Extract	Test Method	HPLC UV
Part of used	Leaf	Active ingredient	Tea Polyphenols
Specs Available	15%-98%	Odor	Characteristic
Molecular Weight	281.36	CAS NO.	84650-60-2

 

Catechin has obvious phenolic properties, can precipitate heavy metals and proteins, so it is a phenolic substance.It

accounts for about 75 to 80 percent of the polyphenols in tea, and is also one of the sources of the bitter taste of tea.

Phenolic compounds, by their capacity to precipitate proteins, have the properties of tanning rawhide to leather in

varying sizes, and are also called tannins or tannins.Compared with some typical plant tannins (gallnut tannins, etc.),

catechins have weaker tanning properties.Catechin is a general term for polyhydroxyflavane-3-phenols, but is

sometimes specifically referred to as (+) catechin.Widely distributed in the plant kingdom, it is abundant with

tannin in the bark of Acacia catechu and gambir.The effect of tannin is very weak, but through heating and acid

treatment easily overlap to form tannin.Positions 2 and 3 have non-corresponding isomers because they contain

irregular carbon atoms.

 

Classification of substances:

 

As the precursor of tannins, catechins are widely distributed in plants and often coexist with their corresponding

flavonoids.There are two chiral (see chiral) carbon atoms in the molecule of catechin, so there are four stereoisomers :

(+) -catechin, (-) -catechin, (+) -epicatechin, and (-) -epicatechin.

 

Other catechin compounds, such as gallocatechin (also known as tea catechin), also have similar stereoisomers, which

are prone to undergo differential isomerization or rotation (see optical isomerization) in hot water solution and convert

to each other.Catechins are found in plants freely, either in combination with sugars (see carbohydrates) to form glycosides

or in condensation with organic acids (see condensation reactions) to form esters.

 

Catechins belong to a kind of Polyphenol, which have a bitter taste, so they have a great influence on the taste of tea.

 

The catechins in tea can be divided into three free forms (Catechin, C;Epicatechin, EC and Epigallocatechin (EGC),

esterified with two gallic acids (Epicatechin gallate, ECG and Epigallocatechin gallate, EGCG),The latter (ECG and EGCG)

were more abundant.A variety of catechins have been isolated from tea soup abroad, and purified, as a different way of use.

 

There are four main types of catechins: ① Epicatechin (EC);② Epigallocatechin EGC;③ Epicatechin gallate ECG;

④ Epigallocatechin gallate EGCG.

Pharmacological effects

Catechin is an important component of tea, which has many functions such as preventing cardiovascular disease and cancer.

Dextran catechu essence also reduces capillary permeability, antidiarrhoea, hemostasis, antiviral, fungicide, inhibition of

ACE and prevent gastric ulcer and other functions.

 

other

Free Radical Scavenging: Catechins are natural lipid antioxidants that have even more antioxidant activity than vitamin E.

And it can remove free radicals produced by the body to protect cell membranes.

 

Delay aging: because it has the function of removing free radicals, it can slow down aging.

 

Prevention of tooth decay: tea contains fluorine, which can make teeth more resistant to acid attack.In addition, there are

also clinical trials that have shown that catechins can significantly reduce dental plaque and slow down periodontal disease.

 

Change the distribution of intestinal microbes: catechins can inhibit the body's pathogenic bacteria (such as botulinum toxin),

while not harming the reproduction of beneficial bacteria (such as lactic acid bacteria), so they have the function of the whole

intestine.

 

Antibacterial effect: can inhibit the bacteria that cause human skin disease, and has a good effect on the treatment of eczema.

 

Deodorizing: Catechins remove the stench of methanethiol, thus eliminating bad breath in smokers, and reduce the stench of pigs,

chickens, and human excrement (since catechins fight the bacteria that cause the stench in the human gut).

 

Other:Other studies have shown that catechins can lower blood pressure (diastolic and systolic) and blood sugar (glycolysase), and

lower blood cholesterol and low-density lipoprotein (LDL).And increase the amount of high-density lipoprotein (HDL) (used to do

low cholesterol eggs in Japan), anti-radiation and ultraviolet (the United States has been made to prevent ultraviolet cosmetics),

anti-mutation (has been confirmed in microorganisms, but there is no human trial report) and other functions.

 

item	specifications			results
appearance	a white to off-white powder			conforms
solubility	freely soluble in water, soluble in isopropyl alcohol slightly			conforms
identification	(1) ir spectrum (2) uv spectrum (3) reaction for potassium			conforms conforms positive
heavy metals	not more than 10ppm			<10ppm
water	not more than 0.5%			0.2%
related substances
individual impurity total impurities		not more than 0.2% not more than 0.5%		0.12% 0.42%
related solvents
cyclohexane isopropanol			not more than 0.1% not more than 0.2%	0.005% 0.024%
assay			98.5%~101.0%	99.5%
conclusion			complies with usp34

 

 

 

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Julong Bio-Tech Co., Ltd. is located in Xi'an City, Shaanxi Province, China. It is a biotechnology enterprise engaged

in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials

and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability

of product quality from all aspects. The company has a complete sales service system, the products are exported to countries

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