Utilization of N,N-Dimethylcyclohexylamine in coconut oil extraction

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Research Paper 13/07/2023
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Utilization of N,N-Dimethylcyclohexylamine in coconut oil extraction

Jamie P. Maguigad, Janus B. Pansacala
Int. J. Biosci.23( 1), 241-248, July 2023.
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A novel extraction technique for coconut oil was sought, particularly, the utilization of a switchable hydrophilicity solvent (SHS), N,N-Dimethylcyclohexylamine (DMCHA). Copra samples were obtained, ground to reduce sample size and dried until the moisture was around 7%. Copra samples were used in both SHS and Soxhlet extraction, and oil yields were compared, as well as the oil qualities in terms of%FFA, peroxide value, iodine value, density, and refractive index. The moisture content of copra sample was reported to be ranging from 7-7.2%. The results showed that extraction using the switchable solvent yielded 42.3157±1.6191% coconut oil. SHS-extracted oil has a reported FFA value of 0.12, peroxide value of 13.66±0.7261, iodine value of 11.34±0.84, and refractive index value of 1.44108±0.00048; all of which agreed to the qualities of a crude coconut oil. This study have manifested that SHS based on a lipotropic tertiary amine, N,N-Dimethylcyclohexylamine, can be capably employed most relevantly to the extraction of coconut oil without the use of energy-intensive distillation processes.


Crowe TD, White PJ. 2001. Adaptation of the AOCS official method for measuring hydroperoxides from small-scale oil samples. Journal of the American Oil Chemists’ Society 78(12), 1267-1269.

Durelle J, Vanderveen JR, Quan Y, Chalifoux CB, Kostin JE, Jessop PG. 2015. Extending the range of switchable-hydrophilicity solvents. Physical Chemistry Chemical Physics 17(7), 5308-5313.

GK AG, Raj G, Bhatnagar A, Kumar P, Chandrashekar P. 2010. Coconut Oil: Chemistry, Production and Its Applications – A Review. In Indian Coconut Journal.

Holland A, Wechsler D, Patel A, Molloy BM, Boyd AR, Jessop PG. 2012. Separation of bitumen from oil sands using a switchable hydrophilicity solvent. Canadian Journal of Chemistry 90(10), 805-810.

Ismail S, Ali R. 2015. Physico-chemical properties of biodiesel manufactured from waste frying oil using domestic adsorbents. Science and Technology of Advanced Materials 16.

Johnson LA, Lusas EW. 1983. Comparison of alternative solvents for oils extraction. Journal of the American Oil Chemists’ Society 60(2), 229-242.

Kaplinsky R. 2011. Schumacher meets Schumpeter: Appropriate Technology Below the Radar. Research Policy 40, 193-203.

Marriott R, Jessop P, Barnes M. 2015. CO2-based Solvents. In Carbon Dioxide Utilisation: Closing the Carbon Cycle: First Edition (pp. 73-96).

Nagy E, Boldyryev S. 2013. Energy Demand of Biofuel Production Applying Distillation and/or Pervaporation. Chemical Engineering Transactions 35, 265-270.

Nde DB, Foncha AC. 2020. Optimization Methods for the Extraction of Vegetable Oils: A Review. Processes 8(2).

Pestaño LD, Jose W. 2016. Engineering an Improved Coconut Processing System in the Philippines at the Farm-Level. Journal of Advanced Agricultural Technologies 3, 58-62.

Phan L, Brown H, White J, Hodgson A, Jessop PG. 2009. Soybean oil extraction and separation using switchable or expanded solvents. Green Chemistry 11(1), 53-59.

Rukunudin IH, White PJ, Bern CJ, Bailey TB. 1998. A modified method for determining free fatty acids from small soybean oil sample sizes. Journal of the American Oil Chemists’ Society 75(5), 563-568.

Samorì C, López Barreiro D, Vet R, Pezzolesi L, Brilman DWF, Galletti P, Tagliavini E. 2013. Effective lipid extraction from algae cultures using switchable solvents. Green Chemistry 15(2), 353-356.