Palm oil shortening effects on baking performance of white bread
2010
CHIN, NYUK LING | Russly Abdul Rahman. | HASHIM, DZULKIFLY MAT | KOWNG, SHIN YUEH
The effect of the addition of palm oil shortening up to 10% on baking performance of white breads in terms of volume, oven spring, weight, density, color, crumb texture and shelf life using strong and weak flour was investigated. Shortening improved the volume and oven spring of bread at an optimum level of 4% for both strong and weak flour. The strong flour illustrated the effects of shortening more significantly than the weak flour as it produced loaves with higher volumes, oven spring and weight. Bread density decreased to its lowest at 4% of shortening before increasing but porosity decreased linearly with shortening level. These findings suggest that shortening has the optimum capability of reducing bread density at 4% and further addition resulted in dense and coarse bread. Addition of shortening also gave signs of whiter breads and mold reduction effect, although there is no particular trend with its usage levels. This research presents the improvement in baking characteristics of white bread with addition of palm oil shortening at an optimum level of 4% for all three types of shortening with melting points ranging from 36-52C. The baking characteristics such as volume, oven spring, weight, density, color, crumb texture and shelf life were evaluated using newly developed research methods and also by adopting industrial practices. It was observed that addition of shortening gave signs of whiter breads and mold reduction effect.
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