Pratiwi Pudjiastuti is a lecturer at the Department of Chemistry, Faculty of Science and Technology of the Airlangga University, Surabaya, Indonesia. Master's and Doctoral Degrees were achieved in Natural Product Chemistry from the University of Indonesia, Depok, West of Java. My research field is focused on Natural Product Chemistry, especially alkaloids and their activities. I also worked polymer from brown and red seaweeds for producing hard shell capsules and another beneficial