I. Product IntroductionXylitol is a kind of sweet stuff with nutritious value and also a normal intermediate for human body saccharide metabolism. In the nature, xylitol widely exists in various fruits and vegetables, however, with low content. Xylitol is white crystal with an appearance similar to cane sugar. It is the sweetest poly alcohol sweetening agent. It gives a cool taste with sweetness equal to that of cane sugar and calorie equal to that of glucose. Xylitol is a future sweetening agent and substitute for cane sugar and glucose. Xylitol can only be absorbed slowly or utilized partially. Low calorie is a major characteristic of Xylitol: 2.4 calorie per gram, less than that of other carbohydrates by 40%. Xylitol is the best sweetening agent for tooth decaying. With the characteristic to subdue tooth decaying, it can be used by both high-danger group (people with high rate of tooth decaying, low nutrition and bad mouth hygienic conditions) and low-danger group (people using all tooth protection measures presently available to protect their teeth, with low rate of tooth cavity generation). II. Functional Characteristics 1). Xylitol will not cause any tooth decay and can be used as sweetening agent for food like chewing gum, cake, chocolate and candy etc. or as anti-frozen humectant for daily items like tooth paste and mouth wash etc.2). It can be used together with other sugar alcohol sweetening agents to create a taste similar to cane sugar and bring characteristics to the food. It can be used as the sweetening agent for low-saccharide food and drinks. 3). Giving strong cool feeling, xylitol can be used in comfort food such as cake or dessert or new mouth-feel stuff like the medicine taken directly without help of water. 4). Xylitol does not rely on insulin for in-body metabolism, nor does it increase blood sugar. It can be used as infusion for diabetes patients in case of abnormal metabolism or taken by patients.5). Xylitol is a kind of polyalcohol and can b