Fig. 1

Schematic diagram of foam formation mechanism of surface modified crystal particles[10]"

Fig. 2

Polarizing structure of crystal particles formed by different systems: Water/sodium chloride crystallization[10]（a）; calcium carbonate nanocrystals[11]（b） ; crystallization of liquid paraffin/monodecyl glyceride[17]（c）; crystallization of liquid paraffin/glyceryl monolaurate[17]（d）; sunflower oil/myristic acid crystallization[20]（e）; sunflower seed oil/octadecanol crystallization[21]（f）; coconut oil self-assembled crystal[26]（g）; sunflower oil/monoglyceride crystallization[38]（h）"

Fig. 3

Schematic diagram of foam formation mechanism of grease self-assembled crystals"

Fig. 4

Foaming properties of 4% fat crystal and 96% salad oil under different crystallization conditions[25]"

Fig. 5

Foams formed by the fatty alcohol crystal particles at 20 ℃ （a） and the state of the system after standing inverted for 30 min[22] （b）"

Fig. 6

Schematic diagram of stabilization mechanism of crystal particles to foam[21]"

Fig. 7

Polarizing structure of different foam systems: stable foam of chitin nanocrystals with a concentration of 1% at room temperature[14]（a）; foam formed by monostearate glyceride and sunflower oil at fixed concentrations[38]（25 ℃（b）; 35 ℃（c）; 45 ℃（d））"