In our country, nutrition, health and safety of the green food are always the pursuit of the food industry. China is a populous countries and food is greatly needed. Diversity and health is a severe test of what food industry are facing. Presently, our food’s thickening agent largely depends on plants and animal plastic and rubber plastic and microorganisms. Pectin is most widely used. Because of the raw materials, conditions are limited, pectin is generally higher than the cost of overseas,so the p...