abstract |
Disclosed are an extracellular polysaccharide with an immunomodulatory effect and a preparation method and use thereof. The extracellular polysaccharide consists of the following raw materials by mass fraction: 20.70-22.74% of glucosamine, 33.87-35.21% of glucose, 20.57-22.38% of arabinose, 11.85-12.74% of galactosamine and 8.74-11.20% of galactose, wherein the weight-average molecular weight is 11,864-15,473 daltons. |