The effects of extraction rate and flour-sieve aperture on the properties of experimentally milled soft wheat flour
The effects of flour extraction rate and flour particle size (flour-sieve aperture) on the physical dough properties and cookie-making quality of soft wheat flour were examined during the development of a soft wheat experimental milling procedure. Soft wheats were milled to three extraction rates, and flour particle size was manipulated by changes in flour-sieve clothing. Physical dough properties, as measured by the farinograph and the alveograph, were weakly affected by milling procedure. However, cookie spread, cookie ratio and total cookie score exhibited strong negative relationships to both flour extraction rate and flour-sieve aperture. Soft wheats of different intrinsic cookie-making quality were ranked similarly by all milling procedures. Key words: Soft wheat, experimental milling, cookie-making quality, soft wheat quality screening