Full Characterisation of Crambe abyssinica Hochst. Seed Oil

Abstract

This work was dedicated to reporting the full chemical and physical characterisation of Crambe abyssinica Hochst. seed oil. The oil from the seeds was extracted using n-hexane. The seeds contain about 30 % oil. Density, refractive index, colour, smoke point, viscosity, acidity, saponification value, iodine value, fatty acid methyl esters, the relative position of fatty acids in C 1 and C 3 carbon glycerol, sterols, tocopherols, peroxide value, E 1 % 1cm at 232 nm, and the susceptibility to oxidation measured by the Rancimat method were determined. The oil was found to contain high levels of unsaturated fatty acids, especially C22:1 (63.77 %). The dominant saturated acid was C22:0 (2.14 %). The oil was also found to contain high levels of b-sitosterol (51.93 %), campestanol (21.98 %), and brassicasterol (12.35 %). a-, c-, and d-Tocopherols were detected up to levels of 7.67, 125.04, and 3.99 mg/kg, respectively. The induction period (at 110°C and 20 l/h) of the oil was 8.83 h. The relative position of fatty acids in C 1 and C 3 position was as follows: linoleic 0.45 %, oleic 8.84 %, and erucic 90.72 %. The thermal profile of the oil presented a single peak at -20.94°C.

Total fatty acid content, antioxidant composition, antioxidant activity, and content of oil from crambe seeds cultivated with phosphorus

“…Lalas et al measured 0.77, 12.50, and 0.39 mg 100 g −1 of α‐, β + γ‐, and δ‐tocopherol in crambe oil extracted with hexane; these values are lower than the levels found in this study, which were on average 2.06, 60.08, and 5.11 mg 100 g −1 , respectively (Table ). Santos et al measured 2.63, 138.59, and 22.19 mg 100 g −1 of α‐, β + γ‐, and δ‐tocopherol, respectively, in crambe oil, also extracted with hexane.…”

Extraction of crambe seed oil using subcritical propane: Kinetics, characterization and modeling

“…Similar results were obtained in other studies [13,26,27]. The saturated fatty acids together represent 6% of the total, and, of these, behenic acid (C22:0) is predominant accounting for 2% of the total composition.…”

“…Although the quantity of these sterols is dependent on several factors, such as variety, cultivation conditions, storage and extraction method [31], the individual content of each phytosterol in the crambe oil samples (average of 14% for brassicasterol, 29.7% for campesterol and 56.3% for ␤-sitosterol) is similar to the results reported by Lechner et al [32] and Lalas et al [26].…”

“…The unsaturated fatty acids are predominant in the crambe oil composition [26]. In this study, it was observed that these accounted for 94% of the total fatty acids, with erucic acid (C22:1n-9) being the main contributor representing 59.4% followed by oleic acid (C18:1n-9) contributing 20.17%, and linoleic (C18:2n-6) and linolenic (C18:3n-3) with values of 7.52 and 5.71%, respectively.…”

Film Extrusion of <em>Crambe abyssinica</em>/Wheat Gluten Blends

“…Despite this, some challenges remain 4 . Crambe abyssinica is an interesting oilseed plant in that it is not a food resource and can be grown in many different agronomic conditions 5,6 . As with wheat gluten, crambe protein is a byproduct, in this case, from oil production.…”