BioMed Research International / 2012 / Article / Tab 3

Review Article

The Promising Future of Chia, Salvia hispanica L.

Table 3

Extraction of oil from chia seed.

Methods of extractionDetails

Seed compression(i) Cold pressing technique and storage at low temperature (4°C) in dark [36].
(ii) Komet screw press at 25–30°C using electrical resistance heating.
 (1) Pro: better preservation of antioxidant contents (quercetin and myricetin) than solvent extraction [37].
 (2) Con: only partial recovery of oil yield [38].

Solvent(i) Soxhlet method using n-Hexane (less preferable than other methods).
 (1) Pro: it favors the functional characteristics of the oil such as water holding and absorption capacity, organic molecule absorption, and emulsifying stability.
 (2) Con: it causes slight loss of antioxidant content [37] and health and environment safety issues of using hexane [38].

Supercritical fluids(i) Use of carbon dioxide at optimum pressure P = 408 and 80°C (more preferable method).
 (1) Pros: better purity and higher ALA/LA content of the final products [39, 40]. The oil yield can be increased with pressure enhancement, but high temperature will slightly affect it [40].

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