Agar can be derived from many types of red seaweeds, including those from families such as Gelidiaceaae, Gracilariaceae, Gelidiellaceae and Pterocladiaceae. It is a polysaccharide located in the inner part of the red algal cell wall. It is used in food material, medicines, cosmetics, therapeutic and biotechnology industries.Mohammed Kuddus and Roohi (editors)
