عنوان مقاله [English]
نویسندگان [English]چکیده [English]
To evaluate the flour quality 10 flour plants were selected in Iran, Tehran province. Two kinds of flour were sampled from each plant (flour with 87% extraction named straight-run- flour as well as patent flour). Samples were analyzed for their moisture content, ash, maximum viscosity of dough, particle size, falling number and the amount of damaged starch, which was determined through maltose figure. The result of analysis of variance showed significant differences in moisture content, falling number and maltose figure for produced flour by various plants (P?0.05). Significant differences on ash, particle size by sieves with mesh of 180, 125µ and by subsieve with mesh of 106 µ for flours and plants were also observed (P?0.05). Additionally, significant differences on maximum viscosity for flours and plants and insignificant differences on particle size by sieves with mesh of 475 and 106 µ were observed (P?0.05). Meanwhile, for combined effects, step-by-step regression analysis (falling number, maltose figure, maximum viscosity as dependent factors and moisture, ash and particle size as independent factors) and their connection showed that (in 20 samples) except the case 4, the others are in normal range (3-18%) and the amount of damage in 2 kinds of flours was different.