MIRANTI, NIM 1310247768, Biochemistry, Determination of antioxidant activity, total phenolic and tannin concentration in 50% ethanol extracts of mangosteen rind assisted by Trichoderma asperellum LBKURCC1 cellulase, supervised and proctoring by Titania Tjandrawati Nugroho and Hilwan Yuda Teruna. Mangosteen fruit rind (Garcinia mangostana L.) contain phenolic compounds and tannins which have bi…