Provided is a method of preparing processed root vegetables or fruit vegetables including: a) heat-treating vegetables selected from the group consisting of root vegetables and fruit vegetables; b) immersing the heat-treated vegetables in a sugar solution; c) preparing a paste of the heat-treated vegetables that are immersed in the sugar solution; d) shaping the paste into the original shape of the vegetables; e) spreading or coating a material having a similar color to the peel color of the original vegetables onto the surface of the shaped paste; and f) drying the spread or coated shaped paste.

 
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> Preservation of flavanols or antioxidants in food products

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