Analisis Senyawa Kafein Pada Light dan Dark Roasted Biji Kopi Robusta (Coffea canephora Pierre.) Berdasarkan Gas Chromatography-Mass Spectrometry (GC-MS) = Analysis of Caffeine Compounds in Light and Dark Roasted Robusta Coffee Beans (Coffea canephora Pierre.) Based on Gas Chromatography-Mass Spectrometry (GC-MS)

Studi pengaruh proses reduksi pemanggangan dan waktu pelindian amonium bikarbonat terhadap perolehan nikel dari bijih limonit

Perancangan Model Proses Kompleksitas Untuk Sangrai Kopi Menggunakan Biji Kopi Arabika Solok Radjo Dan Robusta Temanggung = Designing a Complexity Process Model for Roasted Coffee using Arabica Solok Radjo and Robusta Temanggung Coffee Beans

Peningkatan kadar mangan dan rasio mangan/besi dari bijih mangan kadar rendah lokal melalui proses benefisiasi dengan vasriasi waktu reductio roasting = Enhancement of mn fe ratio from local low grade manganese ore through beneficiation with reduction roasting time as a variant

Peningkatan kadar dan rasio mangan pada bijih mangan lokal kadar rendah melalui proses benefisiasi dengan variabel temperatur pada reduction roasting = The enhancement of manganese grade and its ratio from local low grade manganese ore through beneficiation process with the variation of temperature on reduction roasting process