Corn's Structure Revised

It has been previously thought that cellulose, a thick and rigid complex carbohydrate that acts like a scaffold in corn and other plants, connected directly to a waterproof polymer called lignin. However, Wang and colleagues discovered that lignin has limited contact with cellulose inside a plant. Instead, the wiry complex carbohydrate called xylan connects cellulose and lignin as the glue. Credit: Tuo Wang, LSU.

CRUDE OIL PROCESSING AND PRODUCTION OF PETROLEUM PRODUCTS

Petroleum product is important to source of energy to run our daily life. Crude oil is the main source of petroleum products. It consists of mainly hydrocarbon and another trace of elements. Crude oil can be separated by physical separation method and chemical conversion method. A physical separation method called fractional distillation method was studied. Six fractions were collected according to boiling point ranges. In this method, the light fraction was collected first and heavy fractions are collected later.