Assessing Antioxidant and Pour Point Depressant Capacity of Turmeric Rhizome Extract in Biolubricants
Joseph Samuel,
Muhammad U. Kaisan,
Yinka S. Sanusi,
Sunny Narayan,
Brahim Menacer,
Marian Valenzuela,
Alexis Salas,
Angelo Oñate,
Faisal O. Mahroogi,
Víctor Tuninetti
Affiliations
Joseph Samuel
Department of Mechanical Engineering, Baze University, Abuja 900108, Nigeria
Muhammad U. Kaisan
Department of Mechanical Engineering, Ahmadu Bello University, Zaria 810106, Nigeria
Yinka S. Sanusi
Department of Mechanical Engineering, Ahmadu Bello University, Zaria 810106, Nigeria
Sunny Narayan
Department of Mechanics and Advanced Materials, Campus Monterrey, School of Engineering and Sciences, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Tecnológico, Monterrey 64849, Mexico
Brahim Menacer
Laboratoire des Systèmes Complexe, Ecole Supérieure en Génie Electrique et Energétique, Chemin Vicinal 9, Oran 31000, Algeria
Marian Valenzuela
Doctoral Program in Sciences of Natural Resources, Universidad de La Frontera, Casilla 54-D, Temuco 4811230, Chile
Alexis Salas
Departamento de Ingeniería Mecánica (DIM), Facultad de Ingeniería, Universidad de Concepción, Edmundo Larenas 219, Concepción 4030000, Chile
Angelo Oñate
Departamento de Ingeniería de Materiales (DIMAT), Facultad de Ingeniería, Universidad de Concepción, Edmundo Larenas 315, Concepción 4030000, Chile
Faisal O. Mahroogi
Department of Mechanical Engineering, Islamic University of Madinah, Al Jamiah, Madinah 42351, Saudi Arabia
Víctor Tuninetti
Department of Mechanical Engineering, Universidad de La Frontera, Temuco 4811230, Chile
Natural polyphenols found in plants are secondary metabolites and act as natural antioxidants. Phenols prevent lipid oxidation by donating their hydrogen to free radicals generated between reactions of oxygen with unsaturated fatty acids. This work aims to examine turmeric extract for its capacity to act as an antioxidant and pour point depressant additive in biolubricants. The study involved extracting turmeric rhizome and analyzing the extract using the gas chromatography-mass spectrometry (GC-MS) and Fourier-transform infrared spectroscopy (FTIR) techniques to identify phenolic compounds and the nature of bonds in terms of abundance peak areas. The yield of concentrated turmeric rhizome extract by weight was 3.7%. The FTIR analysis revealed O-H band at 3336 cm−1, C-H asymmetric and symmetric stretching at 2940 and 2834 cm−1, C=C cyclic ring at 1680–1515 cm−1. The phenols detected by the GC-MS technique are phenol, 2 -methoxy-3-(2-propenyl) occupying 36.3% area at 16.5 min retention time and Phenol, 2-methoxy-4-(2-propenyl)-, acetate having 3.8% area at 3.8 min retention time. The results show promising capacity of turmeric rhizome extract to act as antioxidant and pour point depressant additive in biolubricants.
