Effects of ball milling treatment on physicochemical properties and ...
A ball milling equipment (Mixer Mill MM400; Retsch Technology, Haan, Germany) was used to produce BMOP according to a previous report (Yu et al., 2018). Briefly, two grinding tanks (volume of 50 ml) were filled with 5 g oyster protein, respectively, along with a stainless steel ball (25 mm Ø) in each tank.