Research Article

Preparation of Heat-Sensitivity Proteins from Walnut Meal by Sweep Frequency Ultrasound-Assisted Alkali Extraction

Figure 2

Effects of ultrasonic frequency (a), sweep frequency amplitude (b), sweep frequency cycle (c), and duty ratio (d) on the yield and content of walnut protein. The different superscript letters of data under the same line indicate that they are significantly different .
(a)
(b)
(c)
(d)