Fatty acids, sterols, and tocopherols composition in seed oil extracts from four moroccan ecotypes of Ceratonia siliqua L.

• DOI: 10.1002/aocs.12627
• Publication Date: 2022-07-25T18:24:57Z
• Authors: Meriem Yatim; Rahal El Kahkahi; Taoufik El‐Askri; Samia El Oirdi; Fouad Benhnini; Adnane El Yaacoubi; Abdelmounaim Mouh...; Ali Amechrouq; Abdelilah Rahou; Majida Hafidi; Rachid Zouhair
• Keywords: Ceratonia siliqua; Stearic acid

Abstract Morphological characterization was investigated by agro‐morphological criteria related to carob seed size in four different moroccan regions collected 2018 and 2019. There no significant difference ( p ≤ 0.05) on the seeds lengths widths. However, a between thickness total weight per pod were observed these populations. The fatty acid, sterol, tocopherol, hydrocarbon, unoxygenated composition of extracts Ceratonia siliqua L.) studied. mean fat yield obtained is 1.53%–2.17%, 2.14%–2.15%, 1.61%–1.62%, 1.71%–1.75% for, respectively, P1 (Meknes), P2 (Fez), P3 (Khemisset), P4 (Marrakech) oil extracted with hexane analysis fraction performed gas chromatography–mass spectrometry (GC–MS). Results show that major acids for 2019 are linoleic acid (61.48%–61.52%, 52.12%–52.14%, 57.76%–58.15%, 61.33%–61.52%), palmitic (15.78%–15.81%, 16.44%–16.45%, 19.11%–18.37%, 20.24%–20.32%), oleic (11.03%–11.04%, 8.72%–8.82%, 8.51%–8.61%, 8.41%–8.53%), stearic (4.35%–3.14%, 5.40%–5.43%, 3.12%–3.13%, 0.96%–1.56%), cerotic (0.62%–0.53%, 4.51%–4.52%, 4.03%–4.06%, 3.84%–3.87%). unsaturated (69.39% 69.68% 2019) most dominant compared saturated acids. In addition, revealed presence γ‐tocopherol, α‐tocopherol sterols included campesterol, stigmasterol, β‐sitosterol. Moreover, determination hydrocarbon un‐oxygenated compounds confirmed existence such as heptadecane, 2‐methyltriacontane, 1‐iodo hexadecane octadecane. hierarchical based morphological chromatographic allowed identification three groups. Consequently, first group consisted populations from Marrakesh (P4) Khemisset (P3), second Meknes, Fez constituted third group.