Graviola is a substance that comes from a tree in the rain forests of Africa, South America, and Southeast Asia. Its scientific name is Annona muricata. It is also known as custard apple, cherimoya, guanabana, soursop and brazilian paw paw. In many countries, people use the bark, leaves, root, and fruits of this tree for traditional remedies. The active ingredient is The graviola tree, or Annona muricata, produces the sweet soursop fruit, also called custard apple, paw paw or, in many Spanish-speaking countries, guanabana. The tree reaches a height of 25 or 30 feet and produces large fruit that may reach a length of 12 inches. Although its rind is quite bitter, the fruit's flesh is soft, smooth and sweet, and provides carbohydrate as its major nutrient. Soursop also contains abundant vitamin C and several B vitamins such as thiamin, riboflavin and niacin, along with calcium, phosphorus and a small amount of iron thought to be a type of plant Annona Squamosa is medicinal effects, including insecticide, anemia, burning sensation, antiovulatory and abortifacient, stop diarrhea, treatment of dysentery, cold remedy and to clarify urine, cooling, sedative, stimulant, expectorant, compound (phytochemical) called annonaceous acetogenin.

Qingdao xigema Chemical Co.,Ltd is a global chemical industry manufacturers and suppliers of pharmaceuticals 

and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

The aim of xigema is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

xigema has become the "Top 500 Chinese manufacturing companies","Top 20 of global chemical sales".xigema has 21 subsidiaries and holding companies.