Commercial Wheat Flour Quality and Bread Making Conditions for Korean-style Steamed Bread

한국형 찐빵 제조에 적합한 시판 밀가루 품질 밑 적정 제빵 조건

  • Published : 2001.12.01


This study was to investigate the flour quality and bread making condition required for Korean-style steamed bread, using 5 commercial wheat flours (protein content from 8.2 to 12.5%), They were compared in making steamed bread (SB) and baked roll bread (BRB). Straight dough method was used and the temperatures of dough and fermentation were controlled at 26$^{\circ}C$ and 32$^{\circ}C$, respectively. The first fermentation was conducted at various times (0, 20, 40 and 60 min) and then forty min of proofing (2nd fermentation) was used for all bread dough. As the 1st fermentation time increased, volumes of both SB and BRB increased 4.3 ~8.7% and 27~40%, respectively, but the SB flattened and the total bread scores of SB decreased due to the lack of smoothness and shininess of the bread surface and poor grain. Contrary to that, the total bread scores of BRB increased. SB made from the flour containing 10.5% of protein, was of its highest quality: relatively high volume, smooth, semiglossy and white surface, good texture, followed by SB made from flours containing 10.9%, 9.5%, 12.5%, and 8.2% of protein content, respectively These results suggest that the 1st fermentation process was not needed for SB making. Total bread scores of SB were better correlated with farinograph dough stability than protein contents and volumes of SB were correlated with farinograph development time. Therefore, in steamed bread making, flour dough rheology is important as well as protein content.


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