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Article http://dx.doi.org/10.26855/ijfsa.2025.12.020

Extraction of Oil from Safou Pulp (Dacryodes edulis (G. Don) H. J. Lam) by Hot Pressure: Yield and AG Composition

TOTAL VIEWS: 312

Feueltgaldah Christian Bopoundza^1,3,*, Bob Wilfrid Loumouamou^1,2,3, Jean Bruno Bassiloua^1,3,4, Mignon Prince Exaucé Taty¹

¹Multidisciplinary Food and Nutritional Research Team, Regional Center of Excellence in Food and Nutrition, Faculty of Sciences and Technology, Marien Ngouabi University, Brazzaville, BP 69, Republic of the Congo.

²Process Engineering Laboratory, UNESCO-ENSP Chair, Marien Ngouabi University, Brazzaville, BP 69, Republic of the Congo.

³CR2IE, Chemistry and Technology Platform, Higher School of Cataract Technology (EPrES), Brazzaville, BP 69, Republic of the Congo.

⁴Non Wood Forest Products Valorization Center, CVPFNL, BP 5700 Pointe-Noire, Republic of Congo.

*Corresponding author: Feueltgaldah Christian Bopoundza

Published: January 28,2026

Abstract

The actual launch of industrial or semi-industrial production of oil from safou pulp can only be effective if it is profitable enough to compete with the species currently being exploited. Studies on oil extraction by mechanical pressing, which is the main industrial processing technique for oilseeds, are outdated and need to be reevaluated using modern presses to better assess oil extraction yields. The present study, carried out using a screw press (KOMET type CA 59 G) on the pulp studied, gave an extraction yield of 81.18% of the total oil, more or less exceeding those reported in the literature. In addition, as the oil from the kernel has a similar fatty acid composition to that of the pulp, using the whole fruit could increase the fat content and eliminate the need for pitting, thereby reducing processing costs. The extracted oil has a fatty acid profile of C16:0>C18:2>C18:1>C18:0>C18:3, which has already been reported in the literature. Mechanical pressing has no influence on the fatty acid composition of the oil obtained.

Keywords

Safou pulp; oil; press extraction; yield; AG

References

[1] United Nations Department of Economic and Social Affairs, Population Division. World population prospects 2024. New York: United Nations; 2024.

[2] Odile M, Xavier PX-P. Vegetable oil and fats: Functional resources and nutritional interest. OCL. 2012;19(2):63-75.

[3] Kiakouama S, Silou T. Safou or atanga: A regional fruit in the Gulf of Guinea, physico-chemical analysis. Muntu. CICIBA Rev. 1987;6:137-51.

[4] Tchendji C, Severin M, Wathelet JP, Deroanne C. Composition of Dacryodes edulisfat. Rev Fr Corps Gras. 1987;28:123-5.

[5] Silou T, Goma Manouigui J, Boungou P, Ouamba JM. Study of the drying of safou pulp: Preliminary results. Tropicultura. 1991;9(2):61-8.

[6] Silou T. The safou tree (Dacryodes edulis): A little-known tree. Fruits. 1996;51(1):47-60.

[7] Kinkela T, Bezard J. Study of the structure of triacylglycerols in s1afou pulp oil (Dacryodes edulis). Rev Fr Corps Gras. 1993;11(12):373-82.

[8] Kapseu C, Tchiegang C. Composition of the oil from the fruits of two safou cultivars in Cameroon. Fruits. 1996;51(3):185-91.

[9] Kengue J. Safou (Dacryodes edulis). Monograph. Southampton: International Centre for Underutilised Crops; 2002.

[10] Silou T. Unconventional fats from the Congo Basin: Characterisation, biodiversity and quality. OCL. 2014;21(2):D209. doi:10.1051/ocl/2013044.

[11] Bopoundza FC, Loumouamoui BW, Ngounga Kiminou C, Binaki AF, Biassala EL, Mampouya D, et al. Morphological and physicochemical characterisation of Safous from Congo. Res J Appl Sci. 2020;15(10):296-304.

[12] Okorie PE. Use of Dacryodes edulisin erosion control in agriculture lands in Nigeria. In: Kengue J, ed. Proceedings of the second international workshop on the valorisation of Dacyodes edulisand others non-conventional oil crops. Ngaoundéré, Cameroon: Presses Universitaires de Yaoudé; 1998. p.35-44.

[13] International Centre for Underutilised Crops. Fruits for the future: Safou. Factsheet 3. Southampton: ICUC, University of Southampton; 2001.

[14] Verheij EWM. Dacryodes edulis (G. Don) H.J. Lam. In: PROTA. Plant Resources of Tropical Africa. Wageningen, Netherlands: PROTA; 2002.

[15] Mpungi Buyungu. Contribution of safou (Dacryodes edulis) to agricultural diversification in West Africa. In: Proceedings of the 3rd International Seminar on the Development of Safou Tree and Other Unconventional Oilseeds. Yaoundé, Cameroon: Presses Universitaires d'Afrique; 2002. p.40-9.

[16] Icart-Vernière C, Zougrana S, Nkoudou Ze N, Mouquet-Rivier C. Le safou, un fruit atypique dans l’alimentation traditionnelle au Cameroun. Cah Agric. 2023;32(21).
doi:10.1051/cagri/2023013.

[17] Bopoundza FC, Bassiloua JB, Binaki AF, Loumouamoui BW, Biassala EL, Boukouhola A, et al. Modelling of local processes for preserving safou pulp (Dacryodes edulis (G. Dom) H. J. Lam) in Brazzaville, Congo. Int J Food Sci Agric. 2025;9(4):298-314.
doi:10.26855/ijfsa.2025.12.006.

[18] Food and Agriculture Organization of the United Nations, Economic Commission for Africa, African Union Commission, World Food Programme. Afrique – Aperçu régional de la sécurité alimentaire et de la nutrition 2023: Statistiques et tendances. Accra: FAO; 2023. doi:10.4060/cc8743fr.

[19] Nwufo MI, Anyim CO. Post-harvest handling and storage of African pear (Dacryodes edulis) in south-eastern Nigeria. In: Kengue J, ed. Proceedings of the second international workshop on the valorisation of Dacyodes edulisand others non-conventional oil crops. Ngaoundéré, Cameroon: Presses Universitaires de Yaoudé; 1998. p.217-25.

[20] Silou T, Massamba D, Goma Maniongui J, Maloumbi MG, Biyoko SR. Post-harvest losses by natural softening of safou pulp (Dacryodes edulis) in Congo Brazzaville. J Food Eng. 2007;79(2):392-400.

[21] Mayele Kipoy D. Morphological biodiversity and biochemistry of safou (Dacryodes edulis) from Kinshasa and Bas-Congo in the Democratic Republic of Congo [PhD thesis]. Kinshasa: University of Kinshasa; 2010.

[22] Silou Th. Détermination de la teneur en huile de la pulpe de safou (Dacryodes edulis) par refractométrie. Fruits. 1991;46(3):93-100.

[23] Kenmegne Kamdem AT, Ali A, Tchiengang C, Kapseu C. Problématique de la production d’huile de safou au Cameroun. Fruits. 1997;52:325-30.

[24] Mampouya D, Kama Niamayoua R, Goteni S, Loumouamou AN, Kinkela T, Silou T. Optimisation of the Soxhlet extraction of oil from safou pulp (Dacryodes edulis). Adv J Food Sci Technol. 2013;5(3):230-5.

[25] Silou T, Rocquelin G, Gallon G, Molangui T. Contribution à la caractérisation des safou (Dacryodes edulis) d’Afrique centrale. Note II- Composition chimique et caractéristiques nutritionnelles des safous du district de Boko (Congo-Brazzaville). Variation inter-arbre. Riv Ital Sostanze Grasse. 2000;77:85-9.

[26] Silou Th, Rocquelin G, Mouaragadja IG, Gallon G. Contribution of the characterization of safous (Dacryodes edulis) of Central Africa III. Chemical composition and nutritional characteristics of safou of Cameroun, the Congo-Brazzaville, the Congo-Kinshasa and Gabon. Riv Ital Sostanze Grasse. 2002;79:177-82.

[27] Ondo Azi AS, Ella Missang C, Silou T. Classification of Dacryodes edulis (G. Dom) H.J. Lam by using morphological and physical characteristics of the fruits: Statistical approach. For Trees Livelihoods. 2009;19(2):99-109.

[28] Okafor JC. Varietal delimitation in Dacryodes edulis (G. Don) H.J. Lam (Burseraceae). Int Tree Crops J. 1983;2:255-65.

[29] Taty MPE, Loumouamou BW, Elenga M, Baréa B, Barouh N, Danflous JP, et al. Raphia seseunconventional oil from the Congo Basin: Comparison between chemical and screw press extraction. J Am Oil Chem Soc. 2024;101:1-4.

[30] United Nations Conference on Trade and Development. Huile de palme – Un profil de produit de base par INFOCOMM. New York and Geneva: United Nations; 2016.

[31] Adégbola PY, Singbo AG, Ahouansou R, Savi MC. Analyse socio-économique de la presse manuelle à huile de palme “Dékanmé”. Bull Rech Agron Bénin. 2003;40:1-12.

[32] Silou Th. Le safou (Dacryodes edulis H. J. Lam) : Oléagineux à vocation régionale dans le Golfe de Guinée : Synthèse des données physico-chimiques et technologiques. In: Kengue J, Nya Ngatchou J, eds. Actes du séminaire régional sur la valorisation du safoutier. Douala, Cameroon; 1994. p.123-42.

[33] Ajahid IA, Adesanwo O. Comparative study of the mineral element and fatty acid composition of Dacryodes edulispulp and seed. World J Agric Sci. 2009;5(3):279-83.

[34] Nzondo-Gadet M, Nzikou JM, Kimbonguila A, Linder M, Desobry S. Solvent and enzymatic extraction of Safou and Kolo oils. Eur J Lipid Sci Technol. 2004;106:289-93. doi:10.1002/ejlt.200300919.

[35] Nzondo-Gadet M, Nzikou JM, Matouba E, Etoumongo A, Linder M, Desobry S. Characterisation and nutritional interest of Safou pulp oil. Process Biochem. 2005;40:307-12. doi:10.1016/j.procbio.2004.01.003.

[36] Silou T. Oils and fats for the future. A case study: Safou (Dacryodes edulis) from the Congo Basin countries in Africa. New York: Nova Science Publishers, Inc.; 2012.

[37] Ibanga OI. Extraction, characterization of African Pear (Dacyodes edulis) oil and its application in synthesis and evaluation of surface coating driers. Int J Adv Res Chem Sci. 2014;1(4):14-22.

[38] Noumi GB, Djounja T, Ngameni E, Kapseu C. Influence of the storage time on the fats and oil composition of safou (Dacryodes edulis), dried pulp. Int Food Res J. 2014;21(5):1837-41.

[39] Omoti O, Okiy DA. Characteristics and composition of the pulp oil and cake of the African pear, Dacryodes edulis (G. Don) H.J Lam. J Sci Food Agric. 1987;38(1):67-72.

How to cite this paper

Extraction of Oil from Safou Pulp (Dacryodes edulis (G. Don) H. J. Lam) by Hot Pressure: Yield and AG Composition

How to cite this paper: Feueltgaldah Christian Bopoundza, Bob Wilfrid Loumouamou, Jean Bruno Bassiloua, Mignon Prince Exaucé Taty. (2025) Extraction of Oil from Safou Pulp (Dacryodes edulis (G. Don) H. J. Lam) by Hot Pressure: Yield and AG Composition. International Journal of Food Science and Agriculture, 9(4), 464-469.

DOI: http://dx.doi.org/10.26855/ijfsa.2025.12.020