Synthesis and characterization of biodiesel from black date (Canarium schweinfurtii) seed kernel oil in the presence of green-synthesized Cu-Mn/TiO2 nanocatalyst using central composite design approach. Recent Adv. Nat. Sci [Internet]. 2026 Apr. 6 [cited 2026 Apr. 14];4(1):227. Available from: https://flayoophl.com/journals/index.php/rans/article/view/227