Uji penghambatan alfa-glukosidase dan antioksidan dengan metode dpph ekstrak kulit batang garcinia daedalanthera pierre, serta penapisan fitokimia pada ekstrak teraktif = Inhibition test of alpha glucosidase and antioxidant test using dpph method of garcinia daedalanthera pierre stem bark extracts and phytochemical screening on the most active extracts