The value and function of roselle extract!

Jul 08, 2021

The calyx and bracteoles of this species are fleshy and sour, and are often used to make jam; the stem bark fiber is used for rope rubbing. Flowers are rich in vitamin C, which not only has good nutritional value, but also has the effects of diuresis, promoting bile secretion, reducing blood viscosity, lowering blood pressure and stimulating intestinal peristalsis, so it can also be used for medicinal purposes. It is also an excellent ornamental plant for beautifying the environment, and an economic plant with great practical value.

Roselle, also known as Roselle, Red Golden Plum, Red Plum Fruit, Roselle, Luo Jikui. It is the co-calyx of the Malvaceae roselle. This product is slightly conical or irregular, 2.5-4cm long and 2cm in diameter. The calyx is purplish red to purplish black, 5-lobed, and the lobes are lanceolate. The lower part can see the small bracteoles that healed with the calyx, about 10-lobed, draped. Needle-shaped, the base has a cavity left after removing the fruit. The corolla is yellowish brown, with linear stripes on the outer surface, yellowish brown at the base of the inner surface, and occasionally sparse shag. Lightweight and brittle. Slightly fragrant and sour.

The efficacy of roselle

Roselle has a slight fragrance, sour taste, vitamin C, elderberry glycosides, citric acid and other nutrients, which are beneficial to regulate and balance blood lipids, promote calcium absorption, promote children's development, and promote digestion. It has the effects of cooling, detoxification, diuresis, lowering blood pressure, etc. Non-toxic. But pay attention: Roselle contains a lot of organic acids, so people with too much stomach acid should try not to drink it. In addition: it has a diuretic effect. People with poor kidney function should drink properly.

Main value

Edible: The tender leaves and petioles of roselle are used as cold dishes in western food-"salad"; the calyx can be used; the seeds can be edible by squeezing oil, with an oil yield of 14-18%. Flowers are also rich in vitamin C, which has good nutritional value.

Economy: The bark fiber is tough and can be used to make rope; the wooden part of the stem can be used as a raw material for papermaking; its fleshy flowers can be processed into delicious juice, jam, jelly, fruit wine, etc., and the processing is easy. In addition to winemaking, the above-mentioned food families are all Can be self-made; pigments can be extracted from flowers, used in candies and beverages, with good stability.

Medicinal use: Flowers can be used as medicine to have diuresis, promote bile secretion, reduce blood viscosity, lower blood pressure, and stimulate peristalsis of the intestinal wall.

Ornamental: Roselle flower is purple-red, the color is gorgeous, the corolla and the flower are beautiful and unique, and it is an excellent ornamental plant for beautifying the environment.


The calyx of roselle is succulent and natural food coloring can be extracted. The calyx of roselle can also be used medicinally. Its sour taste and cold nature have the effects of clearing heat and relieving heat, diuresis and blood pressure, nourishing skin and reducing spots, detoxification, and anti-alcoholism. Modern studies have shown that roselle contains flavonoids, protocatechuic acid, anthocyanins, isoflavones, and a wealth of chemical components such as amino acids, vitamins, carbohydrates, organic acids, inorganic salts, etc., which can reduce cholesterol and triglycerides and inhibit low density. The oxidation of lipoproteins, inhibit the aggregation of platelets, reduce the formation of thrombus, reduce atherosclerosis, can effectively prevent the occurrence of cardiovascular diseases. In addition, roselle extract also has liver protection and anti-cancer effects.

Roselle extract has the medicinal effect of lowering blood pressure, ascorbicity and diuresis, and has a relieving effect on bronchitis and cough disease.

1. Relieving blood pressure and lowering lipids: It can soften and protect blood vessels, and has the effect of lowering blood lipids and cholesterol in the human body.

2. Resolving phlegm and relieving cough: It has a good moisturizing and physical therapy effect on the throat, which is conducive to the healing of local inflammation, and can relieve the local itching, thereby blocking the cough reflex.

3. Asthma: Reduce the excitability of the respiratory center, so that the breathing movement tends to be quiet and presents antitussive and antiasthmatic effects.

4. Diuresis and swelling: It can remove toxins and excess water from the body, promote blood and water metabolism, and have diuretic and anti-edema effects.


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