Lignin (Latin, English, German: lignin) is a kind of complex organic polymer, which forms important structural materials in the supporting tissues of vascular plants and some algae. Lignin is particularly important in the formation of cell walls, especially in wood and bark, because they give rigidity and are not easy to decay. Chemically, lignin is a cross-linked phenolic polymer. Read More

Bacteria are often regarded as bad things by people, but in fact they can also benefit mankind. For example, there is something called xanthan gum, which is a polysaccharide secreted by bacteria and has become a food additive widely used in the food industry.Accidental discoveryIn the 1950s, the Uni Read More