Table 2.

Fluctuations in oil content caused by the application of US (%).

		Pre-treatment	Assisted frying	Dual-stage	Pre-treatment vs. dual-stage
Brine	4 °C	−3.89	+155.92	+99.18	+107.25
	25 °C	−39.68	−20.13	−42.75	−5.09
	73 °C	−11.51	+10.04	–32.29	–23.48
Water	4 °C	−7.78	+0.52	−35.47	−30.02
	25 °C	−21.25	−4.39	–33.51	−15.56
	73 °C	−26.52	−2.21	−18.52	+10.89