Optimization of solvent and extraction time on secondary metabolite content of mangosteen leaf ( L.) as a feed additive candidate on poultry.

Objectives: This research aimed to determine the optimum type of solvent and extraction time to produce secondary metabolites (phenolics, flavonoids, tannins, and antioxidants) from mangosteen leaves ( L.) as feed additive candidates for poultry.

Materials And Methods: This research used a completely randomized design with a 2 × 5 factorial design with three replications.