| 摘要 |
PURPOSE:To easily accomplish reconstitution treatment of dried shark fin in a short time through mechanical work, by treating dried shark skin with an alkali solution followed by neutralization with an acid. CONSTITUTION:Dried shark fin is dipped in an alkali solution followed by neutralization with an acid. This alkali treatment is pref. carried out as follows: (a) dipping in a 1-5% NaOH or KOH solution at 20-60 deg.C for 10-90min., or (b) dipping in a 1-5% Na2CO3 or K2CO3 solution at 60-90 deg.C for 10-90min. The acid for neutralization is pref. hydrochloric acid. Furthermore, ca.0.5-1.0wt.%, based on the whole solution neutralized, of a highly buffering organic acid such as citric acid, lactic acid or acetic acid is pref. added in advance. |
