Open Access

Table 3

Sterol content and composition in crude sunflower oils extracted by mechanical press and subsequent solvent extraction from a new line of seeds rich in phytosterols (IASP-18) and conventional seeds (HA-89).

IASP-18 HA-89


Pressing Solvent Pressing Solvent

Sterols Conc. (mg kg-1) 9956 ± 15 13 703 ± 346 4757 ± 212 6520 ± 316
Composition (%)
Campesterol 4.5 5.2 4.9 5.0
Stigmasterol 5.1 5.5 4.0 6.9
β-Sitosterol 68.9 69.6 67.7 68.5
Δ5-Avenasterol 2.1 0.7 0.7 2.4
Δ7-Stigmastenol 14.6 14.8 16.9 13.2
Δ7-Avenasterol 2.3 2.8 3.0 1.9
Others 2.2 1.8 2.8 2.0

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