Study On The Development And Production Technology Of High Acyl Gellan Gum

Gellan gum is a kind of high efficient gels,is by the less dynamic sheath amino alcohol fermentation production of bacterium.Gellan gum is a natural four sugar repeating units of anion extracellular polysaccharide,is composed of two molecules of glucose and one molecule of glucose acid and 1 molecule of rhamnose polymerization.Gellan gum because of its unique properties are widely used in food,pharmaceutical,biotechnology and other fields,the commercialization of the products are mainly composed of low acyl gellan gum.In this paper,first of all,in order to improve the rate of gellan gum fermentation to produce glue,reduced cost of gellan gum fermentation production as the goal,through the optimization of the seeds of gellan gum production and fermentation formula,using low cost easy plant nitrogen source of soybean meal replacement medium price higher animal nitrogen source,taking cold glue production of raw materials to reduce costs,to reduce the high acyl gellan gum production costs laid the foundation.Then through the optimization of high acyl gellan gum extraction process node determined a suitable for industrial production of high acyl node of gellan gum process is fermentation liquid and acid pretreatment to precipitate out of gellan gum fiber,and the fibrous materials in 95% alcohol by mill,mincing,adding hydrogen peroxide oxidation,decoloration and finally by filtering,drying and crushing to obtain high acyl products.This process for the production of high acyl node cold glue whiteness,gel elasticity value is higher,the quality of the products is higher than that of domestic manufacturers,and Jabez Kaike high acyl node close to the cold glue products,and the production cost is relatively low can meet the requirements of the application of food enterprises.