Frozen dough preparation and steaming procedure
Chinese steamed bread was prepared according to GB/T 17320-
1998 (China State Bureau of Technical Supervision, 1998). 450 g
flour, 5 g yeast and 245 g water were mixed and kneaded in a mixer
at 4 C to minimize the activity of yeast. The doughwas divided into
80 g pieces, molded, placed into snap lock polyethylene bags and
followed by freezing at 18 C. After fixed days of frozen storage, a
batch of dough was freeze-dried and the other batch of dough was
fermented at 30 ± 2 C under 80 ± 5% relative humidity until the
optimum height. The fermented dough was steamed in the boiling
water for 20 min. After steaming, the bread was cooled for exactly
2 h to room temperature and packed into plastic bags orwas freezedried
for further analysis.
Frozen dough preparation and steaming procedureChinese steamed bread was prepared according to GB/T 17320-1998 (China State Bureau of Technical Supervision, 1998). 450 gflour, 5 g yeast and 245 g water were mixed and kneaded in a mixerat 4 C to minimize the activity of yeast. The doughwas divided into80 g pieces, molded, placed into snap lock polyethylene bags andfollowed by freezing at 18 C. After fixed days of frozen storage, abatch of dough was freeze-dried and the other batch of dough wasfermented at 30 ± 2 C under 80 ± 5% relative humidity until theoptimum height. The fermented dough was steamed in the boilingwater for 20 min. After steaming, the bread was cooled for exactly2 h to room temperature and packed into plastic bags orwas freezedriedfor further analysis.
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