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Table 4

Sterol composition by classes 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

Free sterols* (mg kg1) 5512 ± 232 8636 ± 391 2856 ± 73 5086 ± 373
Sterol esters* (mg kg1)
a 4414 ± 235 5402 ± 470 1971 ± 30 1639 ± 105
b 7327 ± 290 8967 ± 780 3272 ± 50 2721 ± 174
Sterol glycosides* (mg kg1) 32 ± 6 268 ± 55 16 ± 1 138 ± 28

* Mean (n = 3) ± SD. a Sterol esters expressed as free sterols. b Sterol esters calculated from the equation b = a × 1.66.

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