VALERY ALLEN, Rio; SYAHFITRA, Muhammad. Analisis Komparatif Efisiensi Rendemen Dan Stabilitas Kadar Katekin Ekstrak Gambir (Uncaria Gambir) Menggunanakan Pengepres Hidrolik Dan Pengepres Ulir Skala Industri Kecil: Comparative Analysis of Yield Efficiency and Stability of Catechin Content of Gambir (Uncaria Gambir) Extract Using Hydraulic Press and Screw Press on Small Industrial Scale. Atech-i, [S. l.], v. 3, n. 1, p. 38–47, 2026. DOI: 10.55043/atech-i.v3i1.50. Disponível em: https://atech-i.id/index.php/atechi/article/view/50. Acesso em: 6 oct. 2026.