Drying process route of EWPS was showed as followed.
Pretreatment (wash egg and beat egg) ? separation
(separate egg yolk and egg white, homogeneity with
homogenizer) ? pasteurization (45 C, 30 min) ? desugar
(natural fermentation) ? spray drying (spray drying
tower) ? chilling(freezer dryer with -40 C for
10 h) ? hot air sterilization (microwave drying
oven) ? cooling and sieving(standard sieve 80 mesh).