Characterization of sunflower oils obtained separately by pressing and subsequent solvent extraction from a new line of seeds rich in phytosterols and conventional seeds | OCL

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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 kg⁻1)	5512 ± 232	8636 ± 391	2856 ± 73	5086 ± 373
Sterol esters* (mg kg⁻1)
a	4414 ± 235	5402 ± 470	1971 ± 30	1639 ± 105
b	7327 ± 290	8967 ± 780	3272 ± 50	2721 ± 174
Sterol glycosides* (mg kg⁻1)	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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