DE2529446A1 - Water binding capacity of meat determination - by expulsion from a porous body under load - Google Patents

Abstract

The water-binding power of meat is measured by determining either (i) the quantity of water which penetrates by capillary action a porous body brought into contact with the meat to be tested within a predetermined time, or (ii) the air displaced thereby from the body. Provides a simple and rapid means for determining the water-binding capacity on lump or finely divided meat or on the undivided carcase.

Description

Method and precaution for measuring the water binding capacity of Bleisoh The invention relates to what is mentioned above or in the preamble of the main claim Procedures of which zablreiobe are already known. This multitude of methods gives an indication of the difficulties associated with their application are.

The method according to the invention, on the other hand, offers an accelerated one and simplified measuring method for the water-binding capacity of Pleisoh, d. H. from Sole shredded meat.

This procedure is given in the characterizing part of the main claim.

According to other features of the procedure, the pordse body is using brought into contact with the lead to be tested under weight load. One can this contact also by pushing up a hollow latab which contains the porous body reach. Sioh recommends its use with still undivided animal halves, which are usually hung on hooks.

The determination of the amount of water can be done by weighing as well as volumetric or optically. In the former case, the porous body is weighed before and after sucking up the water, which is comparatively cumbersome. The precautionary The method is therefore the volumetric one. One determines the duroh that penetrated Water displaced the amount of air by means of a curved measuring pipette or a thermosetting pipette Sohlauoh, on the scale of which the values obtained can be read off immediately as comparative values are.

An optical determination is possible by means of a template, the has several circular Ausohnitte with different Durohmesser. That Measure the amount of water absorbed However, with this template only possible in connection with porous bodies in slab form, whose not with the Meat coming into contact with the outside bat in the shape of a truncated cone. In water penetrates these from the edge, whereby the template is laid on Penetration depth is determinable. Since the water penetration is not strictly a circular line follows, this method is subject to greater measurement errors than those described above.

The invention also extends to the devices for practicing the procedure.

A preferred embodiment consists essentially of the parts which are listed in the characterizing part of claim 4.

The device for Einsteohen, which preferably not further divided at nooh Halves of sole ungulates is applicable, is the subject of claim 5.

The very simple design in the shape of a cone with a measuring template is required 6 treated.

In all balls, the porous bodies are made of plaster of paris that is finished in Condition is treated with diluted citric acid.

This means that gypsum components are excreted or neutralized duroh chemical reactions with the water or

Fleischaaft can lead to falsification of the measurement results.

In the drawing, a preferred type of measuring device is as Embodiment shown.

1 with the porous plaster of paris body is referred to with a plastic ring 2 is firmly connected. This ring has a protruding edge into which a plug 3 made of silicone rubber is used. This plug carries a riser pipe in the form a curved measuring pipette 4, in which the display liquid 5 is located. A Closure stopper 6 closes a glass tube 7 arranged centrally in stopper 3 from above. In the upper part of the plug 6, a rod 8 is held, which at its upper End is loaded with a weight. Below this is another one for the rod 8 Bracket 10 is provided.

A meat sample 11 is stabbed in a glass 12. The riser pipe carries a closure cap 13 at the top. The holder 10 is attached to a stand 14.

This measuring arrangement is intended for finely chopped meat 11. When measuring whole pieces of meat, the glass 12 is not necessary, preferably is required for laboratory purposes.

The other two measuring devices are much simpler and so precisely described that a drawing is not considered necessary.

The meat industry for quality control and others Exploring the phenomenon of "water retention", offering opportunities and advantages the application of the measuring device according to the invention are emphasized below and in summary: 1. The handling of the measuring device is extremely simple and therefore practical.

2. No specific meat weight is required. This does not apply the time-consuming sampling and weighing required for other methods.

3. The measurements can not only be carried out on pieces of meat but also be carried out on the carcase that has not been dismantled.

This also makes it possible to recognize different ones in good time Pleisohqualities already given to Sohlachthöfe.

4. The measurement result is obtained in a few minutes.

5. No mathematical evaluation is necessary because the value read off already represents the end result.

6. For scientific investigations, the possibility is of interest continuously track the speed of juice discharge and in this way to be able to make kinetic measurements. There is also the option of using the to measure displaced air volume with the help of an amperometric method and thus automate the entire measurement process.

Claims (7)

Claims e 1. Method for measuring the water-binding capacity of meat, as You raw notify that the amount of water that is inside a a predetermined time in a brewed with the meat to be tested in contact porous body penetrates under capillary action, or the daduroh displaced air to be determined. 2. Procedure according to Claim 1, since you can do this e t that the porous body with the meat to be tested under weight load or by piercing a hollow rod containing the body into the meat this is brought into contact. 3. The method according to claim 1, d a d u r c h g e k e n n z e i 0 h n e t that determining the amount of water duroh weighing, volumetrisoh or optisoh is made. 4. Vorriohtung for practicing the method naoh claims 1, 2 and 3, noting that a precautionary embodiment the device essentially consists of the following parts: Porous plaster body (1) in the shape of a cylinder with a ring made of plastic (2) firmly connected in its a stopper (3) made of silicone rubber is inserted which protrudes above the edge carries a measuring pipette (4) with display liquid (5). 5. Vorriohtung for practicing the method naoh claims 1, 2 and 3 d a d u r 0 h e k e n n n z e i o h n e t that a further embodiment the device consists of a hollow rod with a point at the front end, behind the siob the porous body is, in whose area the wall of the hollow rod breakthroughs has that the measuring pipette, starting from the porous body, outside the penetration depth of the hollow rod into the meat with the part that contains the display liquid the hollow rod is led out and that the hollow rod to limit the depth of penetration is provided with a soleplate. 6. Device for practicing the method naoh claims 1, 2 and 3 d a d u r 0 h e k e n n n z e i o h n e t that a simple form of the device consists only of the porous body and a template, the body being in the shape of a disk the outside of which does not come into contact with the meat to be tested Has the shape of a dull cone into which the water penetrates from the edge and that the template for the optical determination of this penetration depth as a measure of the water absorption has several cutouts in circular shape with different durohms. 7. Vorriohtung naoh claims 4, 5 and 6 d a d u r 0 h g e k It should be noted that the porous body is made of plaster of paris and is in a finished state is treated with dilute citric acid. L e r s e i t e