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KMID : 1138520220250020121
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Journal of Pharmacopuncture
2022 Volume.25 No. 2 p.121 ~ p.129
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Chemical Composition of Cactus Pear Seed Oil: phenolics identification and antioxidant activity
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Berraaouan Ali
Ziyyat Abderrahim
Mekhfi Hassane
Sindic Marianne
Fauconnier Marie-Laure
Legssyer Abdelkhaleq
Aziz Mohammed
Bnouham Mohamed
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Abstract
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Objectives: The chemical composition of cactus pear seed oil (Opuntia ficus-indica [L.] Mill.) was analyzed in terms of its fatty acid composition, tocopherol content, phenolic identification, and the oil’s phenolic-rich fraction antioxidant power was determined.
Methods: Fatty acid profiling was performed by gas chromatography coupled to an FI detector. Tocopherols and phenolic compounds were analyzed by LC-FLD/UV, and the oil’s phenolic-rich fraction antioxidant power was determined by phosphomolybdenum, DPPH assay and β-carotene bleaching test.
Results: Fatty acid composition was marked by a high unsaturation level (83.22 ± 0.34%).
The predominant fatty acid was linoleic acid (66.79 ± 0.78%), followed by oleic acid (15.16 ± 0.42%) and palmitic acid (12.70 ± 0.03%). The main tocopherol was γ-tocopherol (172.59 ± 7.59 mg/kg. In addition, Tyrosol, vanillic acid, vanillin, ferulic acid, pinoresinol, and cinnamic acid were identified as phenolic compounds in the analyzed seed oil.
Moreover, the oil’s phenolics-rich fraction showed a significant total antioxidant activity, scavenged DPPH up to 97.85%, and effectively protected β-carotene against bleaching (97.56%).
Conclusion: The results support the potential use of cactus pear seed oil as a functional food.
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KEYWORD
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cactus pear, seed oil, tocopherols, phenolics-rich fraction, opuntia ficus-indica, antioxidant activity
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