Different applications of pistachio skin

Iran is one of the largest producers of pistachios in the world. Therefore, in most parts of the country, pistachio skin is abundantly found. By investigating in this field, one can find suitable usages for this seemingly worthless skin. Pistachio skin, with its substances and compounds, has antioxidant and anti-inflammatory properties, so that some of these compounds have a higher concentration in pistachio skin compared to its nut itself. Pistachio skin has the ability to prevent the growth of fungi and bacteria as well. In addition to food and therapeutic usages, pistachio skin can be used in the production of fertilizers, activated carbon/various adsorbents to remove contaminants and some other applications. Given the amount of pistachio skin produced in Iran, planning and principled commercial measures for an optimal use seems to be necessary.