Castable is a dried gum extract from several species of plants. The genera of the species are small plants of 1 meter height and native to Asia Minor, Iran, Syria and Greece. Iran is the world’s largest producer of varieties.
By scratching the stem of the central cell wall and parenchymal cells, the water absorption gradually turns into gum, the pressure produced causes the gum to be pushed to the crack. Gum in the vicinity of the air is gradually hardened by the evaporation of water. The shape of the dried product depends on the type of crack formed on the stem
On the day that there was no clean up of the day, Cedar and Kittira played a major role in the health of the community. However, there were also other uses for the kitty. This plant gum has a variety of species known as shrubs or perennial herbaceous plants in Iran in general.
In the traditional medicine texts, these plants are named after the Arabic names “Muhlul al-Aqab” and “Esfah al-Gharus”. Of the vast majority of them, gummia is extracted, which is very important for economic reasons, because it has a lot of medicinal and industrial use. Some of these plants are poisonous due to the adsorption of selenium from the soil, and the presence of selenium in these plants can be traced to the presence of uranium in their growth site.