JPS6094045A - Method and apparatus for separating and recovering fish egg - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Fish roe, that is, dispersed fish eggs separated from the ovary of the fish body, are easily attacked by various bacteria because they are raw.
Therefore, long-term storage also results in a long storage time.

The present invention involves disinfecting (or sterilizing) each fish roe by passing it through an atmosphere of alcohol evaporation when separating and recovering fish roe from the ovaries, thereby minimizing loss of freshness and spoilage caused by various bacteria. The aim was to prevent this from occurring and to make it possible to eat or process food in a state free of various types of bacteria.

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a fully illustrated embodiment of the present invention will be described.

Reference numeral 1 denotes a machine frame, which is assembled with four supports 2, nine crosspieces 3, and side plates 4, which are horizontally suspended between each support 2.

Reference numeral 5 denotes a first fish roe separation net having a mesh of a required size through which fish roe of a predetermined particle size can pass, and is installed on the upper surface of the machine frame 1 on a hinge 6 so as to be able to rise and fall freely. Reference numeral 7 denotes a second fish roe separation net having a mesh of a required size through which fish roes of a predetermined particle size pass, and is removably inserted into a desired position below the first fish roe separation net 5. It is. Reference numeral 8 denotes a roe sink plate removably installed obliquely at a predetermined position further below the second roe separation net 7. Although roe with the above particle size do not pass through the roe sink plate 8, it does not pass through the roe sink plate 8, which will be described later. Through hole 9 is small enough to allow evaporation to pass through.
are scattered around. Further, the lower end portion 10 of the fish roe sink plate 8 is made to protrude outward from the machine frame 1.

Reference numeral 11 denotes a surrounding wall constructed on the outer peripheral surface of the machine frame 1 below the second fish roe separation net 7, and this surrounding wall 11 may be extended until it reaches the side plate 4.

Note that the lower end portion 10 of the roe sink plate 8 protrudes from an opening provided in the surrounding wall 11.

12 is an alcohol evaporation source installed below the roe sink plate 8. This alcohol evaporation source 12 is, for example, gauze,
An absorbent material such as absorbent cotton soaked with alcohol and stored in a required container, and the alcohol evaporated through its evaporation port, or an alcohol device connected to an alcohol source prepared separately from this device. It may also be an evaporation head.

Next, the actual separation and collection of fish roe performed using this apparatus having the above configuration will be explained.

First, alcohol is evaporated (via the alcohol evaporation source 12) to create an alcohol evaporation atmosphere in the machine frame 1, particularly in the space above the roe sink plate 8. Next, the ovary taken out from the body of a fish such as salmon or trout is placed on the first fish roe separation net 5 after removing the ovarian membrane and blood, and is rubbed while gradually applying light pressure in both chambers, gradually increasing the speed. As a result, the fish roes are dropped from the mesh of the first fish roe separating net 5 onto the second roe separating net 7 without collapsing the shape of the roe.

The fallen roes pass through the entire mesh of the second roe separation net 7 and further fall onto the roe sink plate 8, from which they gradually flow down toward the lower end 10.

In this case, the space above the roe sink plate 8, particularly the space where the roe falls from the second roe separation net 7 and flows down on the roe sink plate 8, is in an alcohol evaporation atmosphere, so the roe is evaporated. Alcohol groove (or sterilization) during falling and flowing down
be affected.

Fish roe sink board 8? I- The fish β1i that have flowed down enter the egg receiver 13.

In the above, when there are fish eggs suspended on the back side of the first fish roe separation net 5, hit the net surface with your palm and let it fall, and then the first fish roe separation net 5 is attached to the hinge 6. Turn outward and remove any residue. Residues that have fallen from the first fish roe separating net 5 to the second roe separating net 7 are removed by pulling out the second roe separating net 7.

In addition, 1. Since the atmosphere between the second roe separating nets 5 and 7 is also alcohol evaporation, the egg particles falling from the first roe separating net 5 to the second roe separating net 7 are also disinfected (or sterilized) with alcohol. be affected.

As is clear from the above, according to the method of the present invention, the falling of the fish roe from the roe separation net and the flow down on the roe sink plate are performed in an alcohol evaporation atmosphere, so that the roe can be separated and recovered. At this point, the fish roe has already been subjected to alcohol disinfection (or sterilization), so there is no need for troublesome disinfection or sterilization treatment after separation and collection. Furthermore, treatment in an alcohol evaporation atmosphere is unlikely to damage the fish eggs.

In addition, since the device of the present invention is provided with a surrounding wall around the space in which the fish roes fall, the alcohol evaporation head does not leak outward unnecessarily and falls from the roe separation net or flows down on the roe sink plate. It is the one that can most effectively apply the disinfecting (or sterilizing) effect to fish eggs.

[Brief explanation of drawings]

The drawing is a partially cut away perspective view of an embodiment of the device of the present invention. 5... First fish roe separation net, 7... Second fish roe separation net, 8
...Fish roe sink plate, 11... Surrounding wall, 12... Alcohol evaporation source.

Claims (1)

[Scope of Claims] 1. The ovary taken out from the fish body is rubbed on a fish roe separation net while applying light pressure, and the roe is passed through the mesh and dropped onto the roe sink plate without completely collapsing the roe. A fish roe separation and recovery method in which fish IFi flowing completely down on an egg sink plate is accommodated in an egg receiver, the separation and recovery of fish roes is characterized by performing the falling and flowing down of the fish roe in an atmosphere surrounded by alcohol evaporation. Method. 2. A surrounding wall is provided around the separation of fish eggs by constructing a fish egg separation net on the upper surface and a fish egg sink board diagonally installed below the net, and 7/l/coal is evaporated in the surrounding space. A fish roe separation and collection device characterized in that an alcohol evaporation source is provided at the /7i position.