ABSTRACT

Spirulina plantesis, Chlorella vulgaris, and Euchema spinosum are three kinds of algae samples that have been cultivated in Indonesia. These three algae are used both as food ingredients, medicinal ingredients, and cosmetics. Until now, there has been no official release related to the applicable standard parameters of algal material. Therefore, this research study aims to analyze the content of active compounds and the standardization of algae involved in loss-on-drying value, total ash content, acid-insoluble ash content, and water-soluble and ethanol-soluble extractable matter. Phycochemical screening showed that all of the algae samples contained alkaloids, flavonoids, and steroids. Standard parameter determination showed that polar compounds contained in all algae were more dominant than semi-polar and non-polar compounds; it could be seen in the value of water-soluble extractable matter, which was greater than ethanol-soluble extractable matter. All algae were also rich in inorganic compounds, as indicated by a total ash content of more than 5%. But even so, all algae were indicated safe from dangerous heavy-metal content. This can be seen from the value of acid-insoluble ash levels lower than 1%.