| 摘要 |
Cell tissue containing biologically active substances, such as pepsin and mucin, are found in certain areas at the inner sides of animal stomachs (27). In order to provide a starting material for the production of such biologically active substances it is desirable to separate such cell tissue from the membrane or substratum of the animal stomach to which the cell tissue is fastened. Such preparation may be obtained by pressing a plate (29) with a plurality of small, closely spaced openings or perforations (60) against such area of the inner side of the animal stomach at a pressure sufficiently high to crush the cell tissue and to extrude the crushed cell tissue (59) through the perforations (60). The necessary pressure depends on the age and kind of the slaughtered animal from which the stomach stems and may be in the range of 5-50 Kg/cm<2>. When the stomachs are from slaughter swines, a pressure of 30 Kg/cm<2> is suitable. The pressure need not be maintained for more than a few seconds, but before the pressure is totally relieved, the strings of crushed cell tissue extruded through the perforations (60) are preferably cut adjacent to the membrane or substratum to which the cell tissue was originally fastened. This may, for example, be obtained by using a plate comprising first and second plate members (28 and 29) displaceable between a position in which the openings or perforations of the plate members are aligned, and a position in which the perforations or openings are relatively displaced. |
