| 摘要 |
PURPOSE:To provide a production method of roasted sweet potato preservable at normal temperature for a long period of time and not changing its color during storage. CONSTITUTION:A sweet potato is roated at 200 deg.C for one hour, cooled to a state of the potato to be held by a hand and heated and sterilized by using a packaging material having low oxygen permeability such as laminated aluminate film, replacing air in a package with nitrogen by a gas packing type packaging machine so as to maintain the central temperature of the potato sealed in an atmospheric pressure state at 105 deg.C for 10 minutes. The prepared product has no wetting of skin and no change in the color of roasted sweet potato even after long-term preservation. |
