In recent years, there are some hot-selling plant extract products with health-care functions in the planting market. According to the main chemical components of their plant extracts, they can be roughly classified into five categories.
1 Polyphenols: Polyphenols mainly include tea polyphenols, grape seed proanthocyanidins, apple polyphenols and hawthorn extracts,etc.
2 carotenoids: carotenoid plant extracts include lutein, zeaxanthin and lycopene,etc.
3 flavonoids: flavonoid plant extracts are mainly soy isoflavones, sea buckthorn flavonoids, ginkgo extract, red clover extract, etc.
4 saponins: saponin plant extracts are mainly ginsenosides, bitter gourd saponins, etc.
Monk fruit extract is derived from the pulp of the fruit and is used to sweeten foods and beverages without the calories of sugar. In addition, the extract appears to lower both blood sugar and blood lipids in experimental models of animal diabetes.The active sweet substances appear to be the mogrosides which are about 2- 300 times the as sweet as table sugar. The mogrosides also function as antioxidants, potentially limiting the oxidative damage caused by high levels of blood glucose.