DE19708492A1 - Visual indicator - Google Patents

Visual indicator

Info

Publication number
DE19708492A1
DE19708492A1 DE1997108492 DE19708492A DE19708492A1 DE 19708492 A1 DE19708492 A1 DE 19708492A1 DE 1997108492 DE1997108492 DE 1997108492 DE 19708492 A DE19708492 A DE 19708492A DE 19708492 A1 DE19708492 A1 DE 19708492A1
Authority
DE
Germany
Prior art keywords
indicator
freshness
fresh fish
food
cold storage
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.)
Withdrawn
Application number
DE1997108492
Other languages
German (de)
Inventor
Hans-Juergen Iben
Lilia Greve
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.)
TECHNOLOGISCHES BERATUNGS und
Original Assignee
TECHNOLOGISCHES BERATUNGS und
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 TECHNOLOGISCHES BERATUNGS und filed Critical TECHNOLOGISCHES BERATUNGS und
Priority to DE1997108492 priority Critical patent/DE19708492A1/en
Publication of DE19708492A1 publication Critical patent/DE19708492A1/en
Withdrawn legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Abstract

A visual freshness indicator for determining the freshness of foodstuffs, especially packaged and chilled fresh fish, by which (a) interruptions in the cold storage temperature are indicated by a change in colour of the indicator and (b) with packed and cooled fresh fish an increased deterioration of protein due to poor hygiene during processing is shown by a colour change of the indicator.

Description

Der Frischezustand eines Lebensmittels ist ausschließlich aus der an ihm anzubringenden Mindesthalbarkeitsdatumsangabe (MHD) abzuleiten; bei nicht sachgerechter Kühllagerung von Lebensmitteln sowie bei nicht eingehaltenen Hygienemaßnahmen bei der Verarbeitung von Fisch ist hieraus jedoch keine Ableitung auf den tatsächlichen Frischezustand des Le­ bensmittels möglich.The state of freshness of a food is exclusively from that to be attached to it Derive the minimum half-life date (MHD); in the event of improper cold storage of food as well as if hygiene measures are not observed during processing However, fish does not derive from this the actual freshness of the Le possible.

Die Einhaltung von Hygienemaßnahmen während der Verarbeitung von Lebensmitteln ob­ liegt der Qualitätssicherung des Verarbeitungsbetriebes. Die ununterbrochene Einhaltung der Kühllagertemperatur eines Lebensmittels bis zum Endverbraucher entzieht sich jedoch meist dem Einflußbereich des Verarbeiters. Es gilt daher, wie unter Punkt a aufgeführt, dem Verbraucher die Möglichkeit zu geben, Unterbrechungen in der Kühllagertemperatur eines Lebensmittels unmittelbar anhand eines visuellen Indikators feststellen zu können.Compliance with hygiene measures during the processing of food whether lies in the quality assurance of the processing company. Continuous compliance the cold storage temperature of a food to the end user, however, escapes mostly the area of influence of the processor. Therefore, as listed under point a, the To give consumers the opportunity to see interruptions in the cold storage temperature To be able to determine food immediately using a visual indicator.

Über diesen visuellen Hinweis hinaus, sollen, wie unter Punkt b aufgeführt, die spezifischen Kriterien zur Beurteilung des Frischezustandes von Frischfischware einbezogen werden.In addition to this visual indication, the specific Criteria for assessing the freshness of fresh fish products are included.

Wie aus der Praxis bekannt, kann infolge von Unterbrechungen in der Kühllagertemperatur und infolge unzureichender Hygiene bei der Verarbeitung von Fisch, ein verstärkter Abbau von Fischprotein festgestellt werden. Die entstehenden Proteinabbauprodukte sind haupt­ sächlich Stickstoffverbindungen (N-Basen).As is known from practice, interruptions in the cold storage temperature can result and due to insufficient hygiene in the processing of fish, an increased degradation of fish protein. The resulting protein breakdown products are major mainly nitrogen compounds (N-bases).

Der Frischeindikator für gekühlten, verpackten Frischfisch soll einen visuellen Hinweis auf Basis des kombinierten Reaktionsvermögens verschiedener chemischer/pflanzlicher Sub­ stanzen einerseits mit den entstandenen N-Basen aus dem Fischproteinabbau, andererseits mit dem entstandenen Wärmeinkrement, das auf die Kühllagertemperaturveränderungen zurückzuführen ist, geben. The freshness indicator for chilled, packaged fresh fish is intended to provide a visual indication Based on the combined reactivity of different chemical / vegetable sub punch on the one hand with the resulting N-bases from fish protein degradation, on the other hand with the resulting heat increment that can be attributed to the changes in cold storage temperature is to give.  

Die Endprodukte o. g. Reaktionen werden je nach Intensität in einer Farbskala angezeigt, so daß eine rasche visuelle Erkennung des Frischezustandes des verpackten, gekühlten Frischfisches gewährleistet wird.The end products mentioned above Depending on the intensity, reactions are shown in a color scale, see above that a quick visual recognition of the freshness of the packaged, chilled Fresh fish is guaranteed.

Der Frischeindikator sollte auf der Verpackung des Frischfisches in Form eines Streifens- versehen mit einer Skala - angebracht werden. Ein unmittelbarer Kontakt zwischen dem Streifen und dem Frischfisch ist auf das notwendigste zu beschränken.The freshness indicator should be on the packaging of the fresh fish in the form of a strip provided with a scale - be attached. A direct contact between the Strips and fresh fish should be kept to the bare minimum.

Claims (3)

Visueller Frischeindikator zur Erkennung des Frischezustandes von Lebensmitteln insbe­ sondere von verpacktem und gekühltem Frischfisch, dadurch gekennzeichnet, daßVisual freshness indicator for recognizing the freshness of food, in particular packaged and chilled fresh fish, characterized in that a) Unterbrechungen in der Kühllagertemperatur bei Lebensmitteln durch eine Farbverände­ rung des Indikators erkennbar werdena) Interruptions in the cold storage temperature for food due to a color change indicator can be seen b) und daß bei verpacktem und gekühltem Frischfisch ein verstärkter Proteinabbau infolge unzureichender Hygiene bei der Verarbeitung durch eine Farbveränderung des Indikators erkennbar wird.b) and that in packaged and chilled fresh fish an increased protein breakdown as a result insufficient hygiene during processing due to a change in the color of the indicator becomes recognizable.
DE1997108492 1997-03-03 1997-03-03 Visual indicator Withdrawn DE19708492A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997108492 DE19708492A1 (en) 1997-03-03 1997-03-03 Visual indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997108492 DE19708492A1 (en) 1997-03-03 1997-03-03 Visual indicator

Publications (1)

Publication Number Publication Date
DE19708492A1 true DE19708492A1 (en) 1998-09-10

Family

ID=7822024

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997108492 Withdrawn DE19708492A1 (en) 1997-03-03 1997-03-03 Visual indicator

Country Status (1)

Country Link
DE (1) DE19708492A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014053679A1 (en) * 2012-10-04 2014-04-10 Universitat De Valencia Method and system for determining the freshness of fish, based on the processing of ocular images, and computer program implementing the method
CN109975283A (en) * 2019-04-10 2019-07-05 内蒙古农业大学 Visual indicating label of a kind of identification Meat and preparation method thereof and application

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014053679A1 (en) * 2012-10-04 2014-04-10 Universitat De Valencia Method and system for determining the freshness of fish, based on the processing of ocular images, and computer program implementing the method
ES2482415A1 (en) * 2012-10-04 2014-08-01 Universitat De València Method and system for determining the freshness of fish, based on the processing of ocular images, and computer program implementing the method
CN109975283A (en) * 2019-04-10 2019-07-05 内蒙古农业大学 Visual indicating label of a kind of identification Meat and preparation method thereof and application

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee