Materials and Methods
Materials Three rypes of commercial steamed bread flouns(Primaflour, Prima, Singapore), one of high-, medium- and low-protein content each, were purchased from local suppliers. The flours have protein content of 7.5(low), 95(medium) and(high), which is within the range of typical steamed bread flours used commercially. Fine salt(Fairprice, Singapore) and instant dried yeast(Bake King. Singapore) were obtained from NTUC Fairprice(Singapore).