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Article

The Chemical Composition of Oils and Cakes of Ochna serrulata (Ochnaceae) and Other Underutilized Traditional Oil Trees from Western Zambia

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Department of Food Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycká 129, 16500 Praha-Suchdol, Czech Republic
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Department of Crop Sciences and Agroforestry, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Praha-Suchdol, Czech Republic
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Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Praha-Suchdol, Czech Republic
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Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Praha-Suchdol, Czech Republic
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ProjectEDUCATE, P.O. Box 910316, Mongu, Zambia
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School of Natural Resources, University of Barotseland, P.O. Box 910316, Mongu, Zambia
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Department of Economics and Development, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Praha-Suchdol, Czech Republic
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Author to whom correspondence should be addressed.
Academic Editor: Vincenzo De Feo
Molecules 2021, 26(17), 5210; https://doi.org/10.3390/molecules26175210
Received: 13 July 2021 / Revised: 13 August 2021 / Accepted: 15 August 2021 / Published: 27 August 2021
Currently, the negative effects of unified and intensive agriculture are of growing concern. To mitigate them, the possibilities of using local but nowadays underused crop for food production should be more thoroughly investigated and promoted. The soybean is the major crop cultivated for vegetable oil production in Zambia, while the oil production from local oil-bearing plants is neglected. The chemical composition of oils and cakes of a three traditional oil plant used by descendants of the Lozi people for cooking were investigated. Parinari curatellifolia and Schinziophyton rautanenii oils were chiefly composed of α-eleostearic (28.58–55.96%), linoleic (9.78–40.18%), and oleic acid (15.26–24.07%), whereas Ochna serrulata contained mainly palmitic (35.62–37.31%), oleic (37.31–46.80%), and linoleic acid (10.61–18.66%); the oil yield was high (39–71%). S. rautanenii and O. serrulata oils were rich in γ-tocopherol (3236.18 μg/g, 361.11 μg/g, respectively). The O. serrulata oil also had a very distinctive aroma predominantly composed of p-cymene (52.26%), m-xylene (9.63%), γ-terpinene (9.07%), o-xylene (7.97), and limonene (7.23%). The cakes remaining after oil extraction are a good source of essential minerals, being rich in N, P, S, K, Ca, and Mg. These plants have the potential to be introduced for use in the food, technical, or pharmaceutical industries. View Full-Text
Keywords: oil-bearing plants; underused crops; Ochna serrulata; Schinziophyton rautanenii; Parinari curatellifolia; sustainability oil-bearing plants; underused crops; Ochna serrulata; Schinziophyton rautanenii; Parinari curatellifolia; sustainability
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MDPI and ACS Style

Frankova, A.; Manourova, A.; Kotikova, Z.; Vejvodova, K.; Drabek, O.; Riljakova, B.; Famera, O.; Ngula, M.; Ndiyoi, M.; Polesny, Z.; Verner, V.; Tauchen, J. The Chemical Composition of Oils and Cakes of Ochna serrulata (Ochnaceae) and Other Underutilized Traditional Oil Trees from Western Zambia. Molecules 2021, 26, 5210. https://doi.org/10.3390/molecules26175210

AMA Style

Frankova A, Manourova A, Kotikova Z, Vejvodova K, Drabek O, Riljakova B, Famera O, Ngula M, Ndiyoi M, Polesny Z, Verner V, Tauchen J. The Chemical Composition of Oils and Cakes of Ochna serrulata (Ochnaceae) and Other Underutilized Traditional Oil Trees from Western Zambia. Molecules. 2021; 26(17):5210. https://doi.org/10.3390/molecules26175210

Chicago/Turabian Style

Frankova, Adela, Anna Manourova, Zora Kotikova, Katerina Vejvodova, Ondrej Drabek, Bozena Riljakova, Oldrich Famera, Mbao Ngula, Mukelabai Ndiyoi, Zbynek Polesny, Vladimir Verner, and Jan Tauchen. 2021. "The Chemical Composition of Oils and Cakes of Ochna serrulata (Ochnaceae) and Other Underutilized Traditional Oil Trees from Western Zambia" Molecules 26, no. 17: 5210. https://doi.org/10.3390/molecules26175210

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