| 摘要 |
PURPOSE:To freeze and dry the subject ovary or testis without losing the shape of meat and impairing the flavor by filling the ovary of a raw sea urchin or testis of raw fishes in an elastic body container, deaerating the container, then subjecting the ovary and testis to hydrostatic pressure treatment under a specific pressure in a hydraulic medium at a specific temperature, returning the pressure to normal and freezing the ovary or testis. CONSTITUTION:An ovary of a raw sea urchin or testis of raw fishes (e.g. soft roe of cod) is directly or, together with a liquid, filled in an elastic body container such as a polyethylene bag and deaerated. The resultant ovary or testis is then subjected to hydrostatic pressure treatment under >=75 MPa in a hydraulic medium (e.g. water) at >=0 deg.C and the pressure is subsequently returned to normal. The ovary or testis is further frozen at -20 deg.C and preserved. Thereby, the ovary of the sea urchin or the testis of the fishes is frozen and preserved according to the method in which the shape of the meat is not lost after thawing with the directly maintained raw flavor; the preservation can be carried out for a long period; the transportation can be simplified; the price can be reduced and the treatment in a large amount and elimination of seasonal properties, etc., can be expected. |
