What are the main active ingredients of mulberry leaf extract?

- Oct 24, 2019-

Mulberry leaf extract contains active ingredients such as flavonoids, alkaloids, and polysaccharides, and has an appearance of yellow-green or light yellow-brown. Mulberry leaf extract has physiological effects on antioxidant, bacteriostatic and lipid metabolism.

1 Active ingredient of mulberry leaf extract

1.1 Polysaccharides

A polysaccharide is a high molecular weight carbohydrate composed of 10 or more monosaccharides bonded by glycosidic bonds. Mulberry leaf polysaccharides account for 1.79% ~ 2.64% of dried mulberry leaves, by D-Arabic

Sugar, D-xylose, D-glucose, D-rhamnose and D-mannose

1.2 Flavonoids

Flavonoids are a class of compounds with a 2-phenylchromanthone structure that have antioxidant and free radical scavenging effects. Flavonoids account for 1% to 3% of the dry weight of mulberry leaves, and are one of the main active ingredients of mulberry leaves.

1.3 Alkaloids 

Alkaloids are a class of nitrogen-containing organic compounds that are easily soluble in organic solvents such as ethanol and are poorly soluble in water. The total alkaloid content in dried mulberry leaves is 0.058%~ 1.314%. Mulberry alkaloids can improve the body's immunity and delay aging. Mulberry leaf extract DNJ is one of the most studied mulberry alkaloids, which accounts for more than 50% of the total alkaloid content. It is a glycosidase inhibitor and has a significant effect on α-glucosidase inhibitory activity. Although DNJ is also extracted in other plants, the content is much lower than that extracted from mulberry leaves. Therefore, DNJ is a representative and characteristic alkaloid of mulberry leaves.

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