Effect of Ultrasonic-Assisted Enzymatic Hydrolysis on Functional Properties and Antioxidant Activity of Eri Silkworm Pupa Protein Isolate

Table 1

Antioxidant activity and color value of untreated and treated protein isolate.

Treatment	IC50 (μg/mL)	value	value	value
Trolox	d	—	—	—
EPI	a	d	a	b
EPIU20	b	c	b	c
EPIH95	b	b	c	a
EPIU20-H30	c	a	d	b

Values in the same column having the same letter for each parameter are not significantly different at a confidence level of 95%. EPI: control/protein isolate; EPIU20: 20-minute ultrasound-treated protein isolate; EPIH95: acid-digested protein isolate for 95 minutes; EPIU20-H30: the protein isolate was treated by ultrasound for 20 minutes and acid-digested for 30 minutes.