... : Off-white, innocuous, flavourless semitransparent and amorphous solid. Insoluble in water, dilute acid, dilute alkali.Applications:Widely existing in shell of ... shrimp and crab, insect shell, fungi cell and water plant's cell wall.Chitin is mainly made from shell ... message please visite our factory : www.wxsigma.com Food additive/high density chitosan/water-solubility chitosan