Microencapsulation of Purple-Fleshed Sweet Potato Anthocyanins with Chitosan-Sodium Tripolyphosphate by Using Emulsification-Crosslinking Technique - Laila, Umi; Research Unit for Natural Product Technology, Indonesian Institute of Sciences, Jalan Jogja-Wonosari KM 31,5, Desa Gading Kecamatan Playen, Kabupaten Gunungkidul, Yogyakarta 55861 (ITB Journal Publisher, LPPM ITB, 2019)