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Flow properties, clarity and composition of concentrates (retentates) and clarified syrup (permeates) obtained by membrane microfiltration of saccharified corn starch hydrolysate were determined. Clarified syrup (permeate) had low color and no suspended solids at all volume concentration ratios (VCRs) up to 100 X. The color and suspended solids in the concentrate increased linearly with increase in volume concentration ratio. Viscosity of the concentrates increased at higher VCR, but the viscosity of permeates remained essentially unchanged. The densities of all retentates and permeates were not significantly different from each other. Dextrose content of retentates and permeates at all VCRs did not change significantly during the microfiltration, averaging 28·90±1·01% w/w. Total solids, nitrogen, fat and ash content of the retentates increased with increase in VCR. In contrast, total solids, nitrogen, fat and ash of the permeates remained the same for all VCRs, averaging 29·44, 0·011, 0·07 and 0·042% respectively.
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