By Dr. Muhammad Yusuf Abduh (Institut Teknologi Bandung, Indonesia)

The Reutealis trisperma tree (locally known as Kemiri Sunan) is an evergreen tree that is cultivated for its timber. The tree produces seed which has not yet being valorized. The identification of added values from Kemiri Sunan seeds using a biorefinery concept is highly relevant to increase the overall value of the tree. The seeds have an oil content of 38-40 wt%. The oil may be a valuable source for biodiesel production whereas the cake may be utilized as cattle feed because it contains a considerable amount of protein. The shell which contains a relatively high amount of lignocellulose may be mixed with the cake as a substrate for the cultivation of black soldier fly larvae (BSFL) (Hermetia illucens L.) to produce higher value added products such as lipid and protein-rich biomass. The preupal biomass has a relatively high amount of protein (45 wt%, d.b.) and lipid (26.6 wt%, d.b.)

Keywords: Kemiri sunan, biorefinery, black soldier fly larvae, protein-rich biomass