Encapsulation of Ascorbic Acid in Glassy Isomalto-Oligosaccharides by Extrusion

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Encapsulation of Ascorbic Acid in Glassy Isomalto-Oligosaccharides by Extrusion
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In this manuscript,10% and 16% Ascorbic acid(AA) was encapsulated in glassy isomalto-oligosaccharides by extrusion.The measuring feeder was set to obtain a flow rate of 1 kg/h of premixed material and screw speed was maintained at 60 r/min to study effect of barrel temperature,torque,and die head pressure on the AA yield,loading capacity and moisture content of the products.It was found that high barrel temperature could make motor torque and die head pressure decrease.At middle and low barrel temperature,torque decreased with increased AA.AA could be encapsulated successfully.The glass temperature was decreased with increased AA.The result of X-ray diffraction indicated that the formulation is a glassy solid solution.

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CHANG Da-wei, ZHANG Xiao-ming, XIA Shu-qin, JIA Cheng-sheng. Encapsulation of Ascorbic Acid in Glassy Isomalto-Oligosaccharides by Extrusion[J]. Journal of Food Science and Biotechnology,2011,30(2):185-189.

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