Defatted flours of wheat varieties Karl and Jagger, after removing lipids by chloroform, were used to investigate the contribution of lipid to physicochemical properties and Mantou-making quality by comparing microstructure and thermal properties. The results indicated that defatted flours tend to have
more single starch granules, higher gelatinization enthalpy, more water absorption, longer pasting peak
time, higher peak and hold viscosity, lower setback and breakdown than those of the control. Meanwhile,
the defatted flours had improved cooking stability and better ability to withstand mechanical shear
stress. The Mantou-making test showed that the volume of Mantou made from defatted flour did not
change significantly. C-Cell analyses on the internal crumb grains of Mantou revealed a deterioration
in crumb grain characteristics upon removal of lipids from the flours. The grain cells of Mantou became
bigger with thicker cell walls upon removal of lipids.
Defatted flours of wheat varieties Karl and Jagger, after removing lipids by chloroform, were used to investigate the contribution of lipid to physicochemical properties and Mantou-making quality by comparing microstructure and thermal properties. The results indicated that defatted flours tend to havemore single starch granules, higher gelatinization enthalpy, more water absorption, longer pasting peaktime, higher peak and hold viscosity, lower setback and breakdown than those of the control. Meanwhile,the defatted flours had improved cooking stability and better ability to withstand mechanical shearstress. The Mantou-making test showed that the volume of Mantou made from defatted flour did notchange significantly. C-Cell analyses on the internal crumb grains of Mantou revealed a deteriorationin crumb grain characteristics upon removal of lipids from the flours. The grain cells of Mantou becamebigger with thicker cell walls upon removal of lipids.
การแปล กรุณารอสักครู่..