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The potential of 2-methyloxolane (2-MeO) as an alternative solvent to extract cactus seed oil was compared, in qualitative and quantitative terms, with that of n-hexane, a solvent commonly used for the extraction of edible or cosmetic oils. With 2-MeO, the oil yield was higher (9.55 ± 0.12 g/100 g) than the oil extracted with n-hexane (8.86 ± 0.25 g/100 g). The chemical and physical parameters quality indices (acidity, peroxide value and extinction coefficients (K 232 and K 270 ) of 2-methyloxolane extracted oil were found to be much higher than that of oil extracted with n-hexane. A suitable refining scheme will have to be applied, probably leading to slight additional cost and losses. Also, the results showed that the sterol content was higher in the oil obtained with 2-MeO (111.5 ± 2.5 mg/100 g) as a solvent when compared to the oil extracted with n-hexane (102.1 ± 7.54 mg/100 g). However, fatty acid and tocopherol content were not influenced by the extraction solvent. Therefore, the bio-based solvent 2-methyloxolane can be considered as an excellent alternative to the petroleum-based solvent n-hexane for edible/cosmetic oil extraction. The utilization of 2-MeO for oil extraction can drastically reduce the health and environmental impacts associated with n-hexane.

2-methyloxolane as alternative solvent for lipid extraction and its effect on the cactus (Opuntia ficus-indicaL.) seed oil fractions