EP1354194A2 - Device and method for analyzing fat of meat - Google Patents

Device and method for analyzing fat of meat

Info

Publication number
EP1354194A2
EP1354194A2 EP01991740A EP01991740A EP1354194A2 EP 1354194 A2 EP1354194 A2 EP 1354194A2 EP 01991740 A EP01991740 A EP 01991740A EP 01991740 A EP01991740 A EP 01991740A EP 1354194 A2 EP1354194 A2 EP 1354194A2
Authority
EP
European Patent Office
Prior art keywords
meat
fat content
weight
fat
mixer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP01991740A
Other languages
German (de)
French (fr)
Inventor
Anders Ostergaard
Jürgen BERNHARDT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Convenience Food Systems Wallau GmbH and Co KG
Original Assignee
Convenience Food Systems Wallau GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Convenience Food Systems Wallau GmbH and Co KG filed Critical Convenience Food Systems Wallau GmbH and Co KG
Publication of EP1354194A2 publication Critical patent/EP1354194A2/en
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/12—Meat; Fish
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays

Definitions

  • the present invention relates to an apparatus and a method for the continuous determination of the fat content of meat.
  • the object is therefore to provide a device and a method for the continuous determination of the fat content of meat which do not have the disadvantages of the prior art.
  • the object is achieved according to the invention by a device for the continuous determination of the fat content of meat with:
  • a meat analyzer that continuously determines the fat content of the meat transported on the conveyor and a weighing device that continuously determines the weight of the amount of meat on the conveyor belt at the time of measurement
  • the conveying means is a motor-driven conveyor belt, preferably a plastic conveyor belt, on which the meat is transported, for example, from a shredding device into a mixer or to a shredding device, for example a wolf.
  • the fat analysis means preferably has a radiation source with preferably several energy levels and a radiation detector.
  • the radiation source is an X-ray source and the radiation detector is an X-ray detector.
  • An infrared source is also preferred as the radiation source and an infrared detector as the radiation detector.
  • the meat is preferably irradiated perpendicular to the direction of transport, advantageously from above.
  • the height of the meat layer is preferably 50 to 200, particularly preferably 60 to 80 mm.
  • the attenuation of the X-ray beam is preferably measured in an energy range between 18 and 45 keV.
  • the distance between the x-ray source and the x-ray detector is preferably 150 to 300 mm, particularly preferably 200 to 240 mm.
  • the irradiated area is preferably a truncated cone, which advantageously has an opening angle of 10 to 40 °, particularly advantageously 15 to 35 °.
  • the fat content is calculated and the X-ray source is controlled by a microprocessor.
  • the weighing device in the device according to the invention is preferably a belt scale.
  • the fat content of fresh meat, frozen meat and / or their mixture can be analyzed.
  • the device according to the invention has the advantage that the fat content of meat can be determined continuously without the mass flow of the meat having to be constant.
  • the fat content of frozen meat can also be analyzed with the device according to the invention.
  • the device is simple to manufacture and easy to integrate into a meat-making process. The measuring accuracy is + 1% by weight.
  • Another object of the present invention is a method for the continuous determination of the fat content of meat with the device according to the invention, in which the meat is guided past the fat analysis means with the conveying means and its fat content is continuously determined and in which the fat is continuously determined during the determination of the fat content Weight of the examined meat is measured and the fat content per unit weight of the examined meat is determined on the basis of this data.
  • the values of the fat content and the weight values of the meat are averaged over a period of 1 to 10, preferably 2 to 4 seconds.
  • the fat content is preferably determined after the meat has been minced and before the meat is mixed in a mixer with other types of meat or with meat additives.
  • the process according to the invention has the advantage that it can be easily and inexpensively integrated into an existing meat production process.
  • the method according to the invention it is possible to determine the fat content per weight of the meat examined and to transfer this data to a central computer so that, for example, the maximum fat content of the product can be indicated on the product to be sold.
  • Another object of the present invention is a method for automatically setting a certain fat content in a mixer with the Apparatus according to the invention, in which the meat is transported from the conveyor into the mixer, the method having any repetition of the following process steps:
  • the average fat content of the meat in the mixer is preferably calculated according to the following formula:
  • the values of the fat content and the weight values of the meat are also preferably averaged over a period of 1 to 10, preferably 2 to 4 seconds.
  • This method according to the invention has the advantage that the fat content can be set very precisely in a mixer. According to the invention, it is possible to precisely determine the fat content of the meat in the mixer at any time and accordingly to correct the fat content of the meat still to be conveyed into the mixer. This saves the manufacturer time.
  • the invention is explained below with reference to FIG. 1. These explanations are only examples and do not limit the general idea of the invention.
  • Figure 1 shows the device according to the invention for the continuous determination of the fat content of meat.
  • the device consists of a conveyor belt 1, a weighing cell 2, an X-ray source 3 and an X-ray detector 4.
  • the meat is conveyed past the X-ray source with the conveyor belt (direction of travel shown by the arrow) and the X-rays radiate through it.
  • the X-ray detector measures the absorption of the X-rays by the meat and can use this information to determine the fat content.
  • the weight of the meat that is on the conveyor belt at the time of the measurement is measured, thereby determining the amount of meat that has the measured fat content.
  • the central computer also controls the X-ray source and / or the X-ray detector.
  • the device according to the invention has proven to be very robust and with it it is possible to set the fat content per unit of weight very precisely.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Toxicology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The invention relates to a device and method for continuously determining the fat content of meat. To this end, a conveyor belt is used on which the pieces of meat to be examined are advanced past a radiation source serving as a fat analyzing means. The attenuation of an X-ray beam emitted from the radiation source is preferably measured by a detector in order to determine the fat content. A weighing device, preferably a belt weigher, continuously determines the weight of the quantity of meat located on the conveyor belt at the time of the measurement. In addition to enabling the calculation of the measured relative fat content of the meat, this makes its possible to also calculate the absolute fat content. The invention also relates to a method for automatically setting a defined fat content in a mixer, whereby the examined meat is transferred from the conveyor belt and into the mixer. The accumulated fat content in the mixer is calculated, compared with a set value, and the conveyor belt is loaded with lean or fatty meat according to the result of this calculation.

Description

Vorrichtung und Verfahren zur Fettanalyse von Fleisch Device and method for fat analysis of meat
Die vorliegende Erfindung betrifft eine Vorrichtung und ein Verfahren zur kontinuierlichen Bestimmung des Fettgehaltes von Fleisch.The present invention relates to an apparatus and a method for the continuous determination of the fat content of meat.
Da Fleischprodukte heutzutage einen bestimmten Fettgehalt nicht überschreiten dürfen, spielt eine genaue Fettanalyse von Fleisch und eine exakte Einstellung von bestimmten Fettgehalten bei Fleischprodukten eine immer größere Rolle. Die Analyse des Fettgehaltes von Fleisch erfolgt derzeit oftmals diskontinuierlich durch Entnahme einer Fleischprobe aus einem Mischer oder von einem Förderband, die dann in einem Labor analysiert wird. Teilweise erfolgt die Fettanalyse auch schon kontinuierlich, indem beispielsweise der Fettgehalt von Fleisch auf einem Förderband mit einem Sensor bestimmt wird. Diese Messungen haben jedoch den Nachteil, daß der Massestrom des Fleisches absolut konstant sein muß und daß die Messung in einem Rohr stattfindet, was in der Regel für die Fleisch verarbeitende Industrie nicht akzeptabel ist, weil das Fleisch bei dieser Messung verschmiert. Darüber hinaus ist mit diesem Verfahren die Fettanalyse bei gefrorenem Fleisch nicht möglich.Since meat products today must not exceed a certain fat content, a precise fat analysis of meat and an exact setting of certain fat contents for meat products play an increasingly important role. The fat content of meat is currently often analyzed discontinuously by taking a meat sample from a mixer or from a conveyor belt, which is then analyzed in a laboratory. Sometimes the fat analysis is already carried out continuously, for example by determining the fat content of meat on a conveyor belt with a sensor. However, these measurements have the disadvantage that the mass flow of the meat must be absolutely constant and that the measurement takes place in a tube, which is usually not acceptable for the meat processing industry because the meat smears during this measurement. In addition, this method does not allow fat analysis on frozen meat.
Es stellt sich deshalb die Aufgabe, eine Vorrichtung und ein Verfahren zur kontinuierlichen Bestimmung des Fettgehaltes von Fleisch zur Verfügung zu stellen, die die Nachteile des Standes der Technik nicht aufweisen.The object is therefore to provide a device and a method for the continuous determination of the fat content of meat which do not have the disadvantages of the prior art.
Die Aufgabe wird erfindungsgemäß durch eine Vorrichtung zur kontinuierlichen Bestimmung des Fettgehaltes von Fleisch gelöst mit:The object is achieved according to the invention by a device for the continuous determination of the fat content of meat with:
- einem Fördermittel, auf dem das Fleisch gefördert wird,- a means of subsidizing the meat,
- einem Fleischanalysemittel, das kontinuierlich den Fettgehalt des auf dem Fördermittel transportierten Fleisches bestimmt, und einer Wiegevorrichtung, mit der kontinuierlich das Gewicht der zum Zeitpunkt der Messung auf dem Förderband befindlichen Fleischmenge bestimmt wird,a meat analyzer that continuously determines the fat content of the meat transported on the conveyor and a weighing device that continuously determines the weight of the amount of meat on the conveyor belt at the time of measurement,
so daß auch bei schwankenden Fleischfördermengen zu jedem Zeitpunkt der Fettgehalt des Fleisches, bezogen auf das Gewicht der zum Zeitpunkt der Messung auf dem Förderband befindlichen Fleischmenge, bestimmbar ist. In einer bevorzugten Ausführungsform ist das Fördermittel ein Motor getriebenes Förderband, , vorzugsweise ein Kunststofförderband, auf dem das Fleisch beispielsweise von einer Zerkleinerungsvorrichtung in einen Mischer oder zu einer Zerkleinerungvorrichtung, beispielsweise einem Wolf, transportiert wird.so that the fat content of the meat, based on the weight of the amount of meat on the conveyor belt at the time of measurement, can be determined at any time, even with fluctuating amounts of meat. In a preferred embodiment, the conveying means is a motor-driven conveyor belt, preferably a plastic conveyor belt, on which the meat is transported, for example, from a shredding device into a mixer or to a shredding device, for example a wolf.
Als Fettanalysemittel kommt jedes dem Fachmann geläufige Fettanalysemittel in Frage. Vorzugsweise weist das Fettanalysemittel jedoch eine Strahlungsquelle mit vorzugsweise mehreren Energiestufen und einen Strahlungsdetektor auf. In einer ganz besonders bevorzugten Ausführungsform ist die Strahlungsquelle eine Röntgenquelle und der Strahlungsdetektor ein Röntgendetektor. Ebenfalls bevorzugt ist als Strahlungsquelle eine Infrarotquelle und als Strahlungsdetektor ein Infrarotdetektor.Any fat analysis agent familiar to the person skilled in the art can be considered as fat analysis agent. However, the fat analysis means preferably has a radiation source with preferably several energy levels and a radiation detector. In a very particularly preferred embodiment, the radiation source is an X-ray source and the radiation detector is an X-ray detector. An infrared source is also preferred as the radiation source and an infrared detector as the radiation detector.
Das Fleisch wird vorzugsweise senkrecht zur Transportrichtung durchstrahlt, vorteilhafterweise von oben. Vorzugsweise beträgt die Höhe der Fleischschicht 50 bis 200, besonders bevorzugt 60 bis 80 mm.The meat is preferably irradiated perpendicular to the direction of transport, advantageously from above. The height of the meat layer is preferably 50 to 200, particularly preferably 60 to 80 mm.
Bei der Fettanalyse mittels Röntgendetektor wird die Abschwächung des Röntgenstrahls vorzugsweise in einem Energiebereich zwischen 18 und 45 keV gemessen. Vorzusweise beträgt der Abstand zwischen Röntgenquelle und dem Röntgendetektor 150 bis 300 mm, besonders bevorzugt 200 bis 240 mm. Der durchstrahlte Bereich ist vorzugsweise ein Kegelstumpf, der vorteilhafterweise einen Öffnungswinkel von 10 bis 40°, besonders vorteilhaft 15 bis 35° aufweist. Die Berechnung des Fettgehaltes sowie die Steuerung der Röntgenquelle erfolgt durch einen Mikroprozessor.In the fat analysis using an X-ray detector, the attenuation of the X-ray beam is preferably measured in an energy range between 18 and 45 keV. The distance between the x-ray source and the x-ray detector is preferably 150 to 300 mm, particularly preferably 200 to 240 mm. The irradiated area is preferably a truncated cone, which advantageously has an opening angle of 10 to 40 °, particularly advantageously 15 to 35 °. The fat content is calculated and the X-ray source is controlled by a microprocessor.
Die Wiegevorrichtung in der erfindungsgemäßen Vorrichtung ist vorzugsweise eine Bandwaage.The weighing device in the device according to the invention is preferably a belt scale.
Mit der erfindungsgemäßen Vorrichtung kann der Fettgehalt von Frischfleisch, gefrorenem Fleisch und/oder deren Mischung analysiert werden. Die erfindungsgemäße Vorrichtung hat den Vorteil, daß der Fettgehalt von Fleisch kontinuierlich bestimmt werden kann, ohne daß der Massestrom des Fleisches konstant sein muß. Mit der erfindungsgemäßen Vorrichtung kann auch der Fettgehalt von gefrorenem Fleisch analysiert werden. Die Vorrichtung ist einfach herzustellen und einfach in einem Fleischherstellungsprozeß zu integrieren. Die Meßgenauigkeit beträgt + 1 Gew.-%.With the device according to the invention, the fat content of fresh meat, frozen meat and / or their mixture can be analyzed. The device according to the invention has the advantage that the fat content of meat can be determined continuously without the mass flow of the meat having to be constant. The fat content of frozen meat can also be analyzed with the device according to the invention. The device is simple to manufacture and easy to integrate into a meat-making process. The measuring accuracy is + 1% by weight.
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur kontinuierlichen Bestimmung des Fettgehaltes von Fleisch mit der erfindungsgemäßen Vorrichtung, bei dem das Fleisch mit dem Fördermittel an dem Fettanalysemittel vorbeigeführt wird und dabei kontinuierlich dessen Fettgehalt bestimmt wird und bei dem während der Bestimmung des Fettgehaltes kontinuierlich das Gewicht des untersuchten Fleisches gemessen wird und aufgrund dieser Daten der Fettgehalt pro Gewichtseinheit des untersuchten Fleisches ermittelt wird.Another object of the present invention is a method for the continuous determination of the fat content of meat with the device according to the invention, in which the meat is guided past the fat analysis means with the conveying means and its fat content is continuously determined and in which the fat is continuously determined during the determination of the fat content Weight of the examined meat is measured and the fat content per unit weight of the examined meat is determined on the basis of this data.
In einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens werden die Werte des Fettgehaltes und die Gewichtswerte des Fleisches über einen Zeitraum von 1 bis 10, vorzugsweise 2 bis 4 Sekunden gemittelt.In a preferred embodiment of the method according to the invention, the values of the fat content and the weight values of the meat are averaged over a period of 1 to 10, preferably 2 to 4 seconds.
Vorzugsweise erfolgt die Bestimmung des Fettgehaltes nach dem Zerkleinern des Fleisches und bevor das Fleisch in einem Mischer mit anderen Fleischsorten oder mit Fleischzusätzen gemischt wird.The fat content is preferably determined after the meat has been minced and before the meat is mixed in a mixer with other types of meat or with meat additives.
Das erfindungsgemäße Verfahren hat den Vorteil, daß es einfach und günstig in einen bestehenden Fleischherstellungsprozeß integriert werden kann. Insbesondere ist es mit dem erfindungsgemäßen Verfahren möglich, auch den Fettgehalt bei einer nicht konstanten Fördermenge zu messen. Mit dem erfindungsgemäßen Verfahren ist es möglich, den Fettgehalt pro Gewicht des untersuchten Fleisches zu ermitteln und diese Daten an einen Zentralrechner zu überspielen, so daß beispielsweise auf dem zu verkaufenden Produkt der maximale Fettgehalt des Produktes angegeben werden kann.The process according to the invention has the advantage that it can be easily and inexpensively integrated into an existing meat production process. In particular, it is possible with the method according to the invention to also measure the fat content when the delivery rate is not constant. With the method according to the invention it is possible to determine the fat content per weight of the meat examined and to transfer this data to a central computer so that, for example, the maximum fat content of the product can be indicated on the product to be sold.
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur automatischen Einstellung eines bestimmten Fettgehaltes in einem Mischer mit der erfindungsgemäßen Vorrichtung, bei dem das Fleisch von dem Fördermittel in den Mischer transportiert wird, wobei das Verfahren eine beliebige Wiederholung der folgenden Verfahrensschritte aufweist:Another object of the present invention is a method for automatically setting a certain fat content in a mixer with the Apparatus according to the invention, in which the meat is transported from the conveyor into the mixer, the method having any repetition of the following process steps:
a. Bestimmung des Fettgehaltes und des Gewichtes des auf dem Fördermittel befindlichen Fleisches,a. Determination of the fat content and weight of the meat on the conveyor,
b. Berechnung des durchschnittlichen Fettgehaltes des Fleisches im Mischer unter Verwendung der Ergebnisse gemäß Punkt a.,b. Calculation of the average fat content of the meat in the mixer using the results according to point a.,
c. Vergleich des Ergebnisses gemäß b. mit einem Sollwert für den Fettgehalt des Fleisches im Mischer, wobeic. Comparison of the result according to b. with a target value for the fat content of the meat in the mixer, where
d bei einem zu hohen Fettgehalt das Fördermittel mit magerem Fleisch bestückt wird undd if the fat content is too high the lean meat is loaded and
c2 bei einem zu tiefen Fettgehalt das Fördermittel mit fettem Fleisch bestückt wird.c2 if the fat content is too low, the subsidy is loaded with fatty meat.
Vorzugsweise wird der durchschnittliche Fettgehalt des Fleisches im Mischer gemäß der folgenden Formel berechnet:The average fat content of the meat in the mixer is preferably calculated according to the following formula:
(Fettgehalt % ι . Gewicht ι+ Fettgehalt % 2. Gewicht 2+ .... + Fettgehalt % n. Gewicht n) T"=. Gewicht (n)(Fat content% ι. Weight ι + fat content% 2. weight 2+ .... + fat content% n . Weight n) T " = . Weight (s)
Ebenfalls bevorzugt werden die Werte des Fettgehaltes und die Gewichtswerte des Fleisches über einen Zeitraum von 1 bis 10, vorzugsweise 2 bis 4 Sekunden gemittelt.The values of the fat content and the weight values of the meat are also preferably averaged over a period of 1 to 10, preferably 2 to 4 seconds.
Dieses erfindungsgemäße Verfahren hat den Vorteil, daß der Fettgehalt in einem Mischer sehr genau eingestellt werden kann. Erfindungsgemäß ist es möglich, den Fettgehalt des Fleisches im Mischer zu jedem Zeitpunkt genau zu bestimmen und dementsprechend den Fettgehalt des noch in den Mischer zu fördernden Fleisches zu korrigieren. Dadurch ergibt sich für den Hersteller eine Zeitersparnis. Im folgenden wird die Erfindung anhand der Figur 1 erklärt. Diese Erklärungen sind lediglich beispielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein.This method according to the invention has the advantage that the fat content can be set very precisely in a mixer. According to the invention, it is possible to precisely determine the fat content of the meat in the mixer at any time and accordingly to correct the fat content of the meat still to be conveyed into the mixer. This saves the manufacturer time. The invention is explained below with reference to FIG. 1. These explanations are only examples and do not limit the general idea of the invention.
Figur 1 zeigt die erfindungsgemäße Vorrichtung zur kontinuierlichen Bestimmung des Fettgehaltes von Fleisch. Die Vorrichtung besteht aus einem Förderband 1 , einer Wiegezelle 2, einer Röntgenquelle 3 und einem Röntgendetektor 4. Das Fleisch wird mit dem Förderband (Laufrichtung durch den Pfeil dargestellt) an der Röntgenquelle vorbeigeführt und dabei von den Röntgenstrahlen durchstrahlt. Der Röntgendetektor mißt die Absorption der Röntgenstrahlen durch das Fleisch und kann anhand dieser Informationen den Fettgehalt bestimmen. Gleichzeitig während der Messung wird das Gewicht des Fleisches, das sich zum Zeitpunkt der Messung auf dem Förderband befindet, gemessen und dadurch die Menge an Fleisch, die den gemessenen Fettgehalt aufweist, bestimmt. Diese Daten werden an einen Zentralrechner übermittelt, so daß entweder der genaue Fettgehalt eines bestimmten Produktes bestimmt werden kann oder diese Daten zur Berechnung des Fettgehaltes beispielsweise in einem Mischer herangezogen werden können. Der Zentralrechner übernimmt auch die Steuerung der Röntgenquelle und/oder des Röntgendetektors.Figure 1 shows the device according to the invention for the continuous determination of the fat content of meat. The device consists of a conveyor belt 1, a weighing cell 2, an X-ray source 3 and an X-ray detector 4. The meat is conveyed past the X-ray source with the conveyor belt (direction of travel shown by the arrow) and the X-rays radiate through it. The X-ray detector measures the absorption of the X-rays by the meat and can use this information to determine the fat content. At the same time during the measurement, the weight of the meat that is on the conveyor belt at the time of the measurement is measured, thereby determining the amount of meat that has the measured fat content. These data are transmitted to a central computer so that either the exact fat content of a certain product can be determined or this data can be used to calculate the fat content, for example in a mixer. The central computer also controls the X-ray source and / or the X-ray detector.
Die erfindungsgemäße Vorrichtung hat sich als sehr robust herausgestellt und mit ihr ist es möglich, den Fettgehalt pro Gewichtseinheit sehr exakt einzustellen. The device according to the invention has proven to be very robust and with it it is possible to set the fat content per unit of weight very precisely.

Claims

Patentansprüche: claims:
1. Vorrichtung zur kontinuierlichen Bestimmung des Fettgehaltes von Fleisch, mit: einem Fördermittel, auf dem das Fleisch gefördert wird, einem Fettanalysemittel, das kontinuierlich den Fettgehalt des auf dem Fördermittel transportierten Fleisches bestimmt und einer Wiegevorrichtung, mit der kontinuierlich das Gewicht der zum Zeitpunkt der Messung auf dem Förderband befindliche Fleischmenge bestimmt wird, so daß auch bei schwankenden Fleischfördermengen zu jedem Zeitpunkt der Fettgehalt des Fleisches bezogen auf das Gewicht der zum Zeitpunkt der Messung auf dem Förderband befindliche Fleischmenge bestimmbar ist.1. Device for the continuous determination of the fat content of meat, comprising: a conveyor on which the meat is conveyed, a fat analyzer that continuously determines the fat content of the meat transported on the conveyor and a weighing device with which the weight of the at the time of the Measurement of the amount of meat on the conveyor belt is determined so that the fat content of the meat can be determined at any time in relation to the weight of the amount of meat on the conveyor belt at the time of measurement, even with fluctuating amounts of meat.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß das Fördermittel ein motorgetriebenes Förderband, vorzugsweise ein Kunststofförderband ist.2. Device according to claim 1, characterized in that the conveying means is a motor-driven conveyor belt, preferably a plastic conveyor belt.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Fettanalysemittel eine Strahlungsquelle mit mehreren Energiestufen, vorzugsweise eine Röntgenquelle, und ein Strahlendetektor, vorzugsweise ein Röntgendetektor, ist.3. Apparatus according to claim 1 or 2, characterized in that the fat analysis means is a radiation source with a plurality of energy levels, preferably an X-ray source, and a radiation detector, preferably an X-ray detector.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Abschwächung des Röntgenstrahls, vorzugsweise im Energiebereich von 18 bis 45 keV gemessen wird.4. The device according to claim 3, characterized in that the attenuation of the X-ray beam, preferably in the energy range from 18 to 45 keV is measured.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Wiegevorrichtung eine Bandwaage ist.5. Device according to one of claims 1 to 4, characterized in that the weighing device is a belt scale.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Fleisch Frischfleisch und/oder gefrorenes Fleisch ist, das vorzugsweise gewolft ist. 6. Device according to one of claims 1 to 5, characterized in that the meat is fresh meat and / or frozen meat, which is preferably minced.
7. Verfahren zur kontinuierlichen Bestimmung des Fettgehaltes von Fleisch mit einer Vorrichtung gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Fleisch mit dem Fördermittel an dem Fettanalysemittel vorbeigeführt wird und dabei kontinuierlich dessen Fettgehalt bestimmt wird und daß während der Bestimmung des Fettgehaltes kontinuierlich das Gewicht des untersuchten Fleisches gemessen wird und das aufgrund dieser Daten der Fettgehalt pro Gewicht des untersuchten Fleisches ermittelt wird.7. A method for the continuous determination of the fat content of meat with a device according to one of claims 1 to 6, characterized in that the meat is guided past the fat analysis means with the conveying means and its fat content is continuously determined and that during the determination of the fat content continuously the weight of the meat examined is measured and the fat content per weight of the meat examined is determined on the basis of this data.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß die Werte des Fettgehaltes und die Gewichtswerte des Fleisches über einen Zeitraum von 1- 10 Sekunden gemittelt werden.8. The method according to claim 7, characterized in that the values of the fat content and the weight values of the meat are averaged over a period of 1-10 seconds.
9. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Bestimmung des Fettgehaltes nach dem Zerkleinern des Fleisches und vor dem Mischen des Fleisches mit anderem Fleisch oder Fleischzusätzen erfolgt.9. The method according to claim 7 or 8, characterized in that the determination of the fat content is carried out after the meat has been minced and before the meat has been mixed with other meat or meat additives.
10. Verfahren zur automatischen Einstellung eines bestimmten Fettgehaltes in einem Mischer mit einer Vorrichtung gemäß einem der Ansprüche 1-6, wobei das Fleisch von dem Fördermittel in den Mischer transportiert wird, dadurch gekennzeichnet, daß es eine beliebige Wiederholung der folgenden Verfahrensschritte aufweist:10. A method for the automatic setting of a certain fat content in a mixer with a device according to one of claims 1-6, wherein the meat is transported from the conveyor into the mixer, characterized in that it has any repetition of the following process steps:
a. Bestimmung des Fettgehalt und des Gewichtes des auf dem Fördermittel befindlichen Fleisches,a. Determination of the fat content and weight of the meat on the conveyor,
b. Berechnung des durchschnittlichen Fettgehalts des Fleisches im Mischer unter Verwendung der Ergebnisse gemäß Punkt a. undb. Calculation of the average fat content of the meat in the mixer using the results according to point a. and
c. Vergleich des Ergebnisses gemäß Punkt b. mit einem Sollwert für den Fettgehalt des Fleisches im Mischer, wobeic. Comparison of the result according to point b. with a target value for the fat content of the meat in the mixer, where
d bei einem zu hohen Fettgehalt das Fördermittel mit magerem Fleisch bestückt wird und c2 bei einem zu tiefen Fettgehalt das Fördermittel mit fettem Fleisch bestückt wird.d if the fat content is too high the lean meat is loaded and c2 if the fat content is too low, the subsidy is loaded with fatty meat.
11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß der durchschnittliche Fettgehalt des Fleisches im Mischer gemäß folgender Formel:11. The method according to claim 10, characterized in that the average fat content of the meat in the mixer according to the following formula:
(Fettgehalt % ι . Gewicht ι+ Fettgehalt % 2. Gewicht 2+ .... + Fettgehalt % .. Gewicht n)(Fat content% ι. Weight ι + fat content% 2. weight 2+ .... + fat content% .. weight n )
^" Gewicht (n)^ "Weight (s)
berechnet wird.is calculated.
12. Verfahren nach Anspruch 10 oder 11 , dadurch gekennzeichnet, daß die Werte des Fettgehaltes und die Gewichtswerte des Fleisches über einen Zeitraum von 1-10 Sekunden gemittelt werden. 12. The method according to claim 10 or 11, characterized in that the values of the fat content and the weight values of the meat are averaged over a period of 1-10 seconds.
EP01991740A 2000-12-22 2001-11-20 Device and method for analyzing fat of meat Ceased EP1354194A2 (en)

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DE10064707A DE10064707A1 (en) 2000-12-22 2000-12-22 Device and method for fat analysis of meat
DE10064707 2000-12-22
PCT/EP2001/013428 WO2002052257A2 (en) 2000-12-22 2001-11-20 Device and method for analyzing fat of meat

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US7123685B2 (en) 2006-10-17
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WO2002052257A2 (en) 2002-07-04
AU2002231633A1 (en) 2002-07-08
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NO20032803L (en) 2003-06-19
BR0116495A (en) 2004-02-03

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