Is gallic acid an antioxidant?

Among various polyphenols, gallic acid (3,4,5-trihydroxybenzoic acid), a naturally occurring low molecular weight triphenolic compound, has emerged as a strong antioxidant and an efficient apoptosis inducing agent. The existing literature on this dual behavior of gallic acid and its derivatives is reviewed here.

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Moreover, what is gallic acid used for?

Gallic acid acts as a antioxidant and helps to protect our cells against oxidative damage. Gallic acid was found to show cytotoxicity against cancer cells, without harming healthy cells. Gallic acid is used a remote astringent in cases of internal haemorrhage. Gallic acid is also used to treat albuminuria and diabetes.

Similarly, is gallic acid a polyphenol? Polyphenols in the Prevention and Treatment of Vascular and Cardiac Disease, and Cancer. Gallic acid is a well-known natural antioxidant that is basically a secondary polyphenolic metabolite. Gallic acid is a very important common antioxidant tea formulation, known as an Ayurvedic herb.

Keeping this in view, why gallic acid is used as standard?

Gallic acid is commonly used in the pharmaceutical industry as a standard for determining the phenol content of various analytes by the Folin-Ciocalteau assay; results are reported in gallic acid equivalents. Gallic acid can also be used as a starting material in the synthesis of the psychedelic alkaloid mescaline.

What foods contain gallic acid?

A cup of hot chocolate contains higher amounts of this compound than beverages such as wine and tea. Other sources of gallic acid are walnuts, hops, apples, and flax seeds. Agricultural practices, vegetative stage and processing parameters affect the phenolic content and profile of foods.

Related Question Answers

What does ellagic acid do for the body?

Ellagic acid is a polyphenol, or micronutrient, found in fruits and vegetables. This is an acid that is converted into ellagic acid in the body. Ellagic acid is known for its antioxidant properties. That means it removes toxins from your body and protects against harmful molecules known as free radicals.

How do you make gallic acid?

For example you can dissolve 0.500 g of dry gallic acid in 10 ml ethanol and dilute with distilled water to 100ml. From this stock solution of GA, you can now prepare a calibration curve by adding 0, 0.1, 0.2, 0.3, 0.5, 1.0 ml of the GA stock into a 10ml test tube and top with distilled water to the 10ml mark.

What is ellagic acid used for?

Ellagic acid is a naturally occurring substance. The best sources of ellagic acid in the diet are strawberries, raspberries, blackberries, and walnuts. Medicinally, ellagic acid is used to prevent cancer and treat viral and bacterial infections.

Is gallic acid soluble in water?

The gallic acid solubility in different solvents increases smoothly with temperature. The relative solubility of gallic acid in the solvents was found as: w_methanol > w_ethanol > w_water > w_{ethyl acetate}. The temperature dependence of the solubility data was correlated by the modified Apelblat model.

What is a phenolic compound?

Phenolic compounds are a large class of plant secondary metabolites, showing a diversity of structures, from rather simple structures, e.g. phenolic acids, through polyphenols such as flavonoids, that comprise several groups, to polymeric compounds based on these different classes.

What do phenolic acids do?

Phenolic acids are readily absorbed through the walls of your intestinal tract, and they may be beneficial to your health because they work as antioxidants that prevent cellular damage due to free-radical oxidation reactions. They may also promote anti-inflammatory conditions in your body when you eat them regularly.

Are tannins toxic?

Generally, tannins induce a negative response when consumed. These effects can be instantaneous like astrigency or a bitter or unpleasant taste or can have a delayed response related to antinutritional/toxic effects. Tannins negatively affect an animal's feed intake, feed digestibility, and efficiency of production.

What is tannic acid used for?

Tannic acid is also taken by mouth and applied directly for bleeding, chronic diarrhea, dysentery, bloody urine, painful joints, persistent coughs, and cancer. Vaginally, tannic acid is used as a douche for white or yellowish discharge (leukorrhea). In foods and beverages, tannic acid is used as a flavoring agent.

What is total phenolic?

Total Phenolic Content. TPC activity is the process to figure out the amount of phenolic content in the samples. Phenolic compounds that contained in the plants have redox properties, and the properties allow them acting as antioxidants [6, 7].

How do you calculate total phenolic content?

Gallic acid is used as a standard compound and the total phenols were expressed as mg/g gallic acid equivalent using the standard curve equation: y = 0.0061x + 0.0396, R2 = 0.9991, Where y is absorbance at 760 nm and x is total phenolic content in the different extracts.

What is total phenolic content assay?

The Folin-Ciocalteu method is an electron transfer based assay, and gives reducing capacity which is expressed as phenolic content. Total phenolic content of plant extracts and their yield depends on the solvent selected for extraction.

How do you make tannic acid from oak bark?

1. Shred oak bark (and wood, if any) in a wood chipper to create pieces 1 to 2 inches across.
2. Fill a pot halfway with water and bring it to a simmer.
3. Put the oak chips into the water and soak them until the solution of tannin is at the desired strength, about one to eight hours.
4. Pour off the solution and save it.

How is ellagic acid related to gallic acid?

Ellagic acid, a dimeric derivative of gallic acid, is generated by the hydrolysis of the ellagitannins. Being a strong antioxidant, ellagic acid attenuates the damaging effect of H₂O₂, scavenges superoxide anion and hydroxyl anion (Thulstrup et al., 1999; Festa et al., 2001; Kang et al., 2006).

Does caffeic acid contain caffeine?

Caffeic acid, which is unrelated to caffeine, is biosynthesized by hydroxylation of coumaroyl ester of quinic acid (esterified through a side chain alcohol). Caffeic acid and its derivative caffeic acid phenethyl ester (CAPE) are produced in many kinds of plants.