This paper presents the results of study on anatomical structure, fiber size and basic chemical composition of com stalks, for using orientation as raw materials for production of value-added products. The analytical standard methods (TCVN and TAPPI) were used for determination of anatomical structure, fiber size and some basic chemical components of the corn stalk. The root and top fraction of com stalks have the average fiber length as 1.5 mm and 0.73 mm respectively
The average width of the fiber of same root and top fractions was 11.63 um and 12,14 um respectively. The basic chemical composition of com stalks consists 39.66 percent of cellulose, 17.63 percent of lignin, 2.85 percent of ethyl ether extractives, 21.30 percent of pentosanes and 5.3 percent of ash. In addition, some of other components (groups of substances) have also been determined, such as hot water solubility was 39.30 percent of over dry com stalk, cold water solubility was 17.11 percent and one percent sodium hydroxide solubility was 29.27 percent. Determined chemical composition, fiber size and anatomical structure showed that the com stalks are used as raw materials for production of valued products, such as pulp, ethanol, activated carbon, composite materials, etc.