. 2016 Dec 7;21(12):1675. doi: 10.3390/molecules21121675

Table 1.

Extraction yield and chemical characterization of wheat germ oil (WGO) by three extraction methods.

Quality Index	Subcritical Butane Extraction (SBE)	Supercritical Carbon Dioxide Extraction (SCE)	Solvent Extraction (SE)
Oil yield (%, db.)	9.10 ± 0.08 ^a	8.78 ± 0.08 ^b	9.24 ± 0.11 ^a
Acid value (AV, mg KOH/g)	8.97 ± 0.01 ^a	10.51 ± 0.00 ^b	11.19 ± 0.08 ^c
Peroxide value (POV, meq/kg)	4.69 ± 0.58 ^a	5.01 ± 0.01 ^a	5.43 ± 0.59 ^a
p-anisidine value(PAV)	1.25 ± 0.05 ^a	1.23 ± 0.09 ^a	1.65 ± 0.07 ^b

^a Each value is expressed as mean ± standard deviation (n = 3). Means with different letters of ^a–c within a row are significantly different (p < 0.05) by Bonferroni t-test.