Thus

Thus, there is a possibility that ink poisoning may take place. In that way, if we keep an eye on the pollution present and widely-spread in our world today, being nature-friendly can be really helpful. By simply using some non toxic, harmless, and safe contents in making ink must be solved through finding substitute to the chemical content it has. (Banana sap and Annatto Seeds as Ink, 2014).
Banana (Musa) is a fruit cultivated in Malaysia, Philippines, and other tropical countries. It came from herbaceous plant of the Genus Musa. They use bananas in cooking industry or plantains in some states. This fruit is elongated and curved with a soft white flesh. The external part of the banana may be green, yellow, ruddy, purple, or brown when it is ripe. (Banana Sap as Natural Ink, 2017)