SFE is a process in which the gas beyond its critical temperature and pressure is fed to the extraction vessel in order to extract the desired compoferrous sulfate juiceund/mixture of compounds from the product matrix (Figure 1). Under supercritical state the fluid has both the properties of gas and liquid, as it has density like liquid and viscosity like gas. This property enhances thnature’s way chelated zince diffusivity of the fluid in the product-containing matrix and increases the rate of extraction of the targeted compound/s. SFE is a selective process in which the process variables, such as pretreatment to plant material, temperature, pressure, particle size, moisture content, solvent flow rate, extraction time and co-solvents (usually 1 to 10 percent) are varied according to the target compound to be extracted.2