ISOLATION ANTHOCYANIN FROM ROSELLE PETALS (Hibiscus sabdariffa L) AND THE EFFECT OF LIGHT ON THE STABILITY - Nuryanti, Siti; Department of Chemistry, Faculty of Teacher Training and Education, Tadulako University, Jln. Soekarno-Hatta Km 8, Palu (Universitas Gadjah Mada, 2012)