ABSTRACT Mango is one type of fruit that is most popular with the public. The use of mangoes is only for the flesh for consumption, while the skin and seeds are discarded, causing organic waste in the environment. This study aims to determine the content of secondary metabolites and antioxidant activity in the seeds mango of arum manis (Mangifera indica Linn.), kweni (Mangifera odorata Griff.)…