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  • GCFI  (2,950)
  • Chemistry  (946)
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  • 1
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    In:  J.Oehlenschlaeger@gmx.net | http://aquaticcommons.org/id/eprint/11132 | 1240 | 2013-04-08 18:42:57 | 11132 | Johann Heinrich von Thünen-Institut, Bundesforschungsinstitut für Ländliche Räume, Wald und Fischerei
    Publication Date: 2021-06-28
    Description: KurzfassungZahlreiche Fischereierzeugnisse aus dem Deutschen Handel wurden auf ihren Gehalt an Cholesterol hin analysiert. ZurAnalyse gelangten 38 verschiedene Dauerkonserven von acht Fischarten, 4 Produkte kalt geräucherter AtlantischerZuchtlachs in Scheiben, 10 Garnelenarten und 25 Fischstäbchenerzeugnisse von 5 Tierarten in Verbraucherpackungen. Bei den Dauerkonserven lagen die Gehalte zwischen 24 und 40 mg/100 g. Zwei Ausnahmen bildeten Sprottenkonserven mit durchschnittlich 107 mg/100 g und Oktopuskonserven mit 196 mg/100 g. Die Garnelenarten variierten zwischen 84 und 161 mg/100g. Die kalt geräucherten Lachsscheiben wiesen nur eine kleine Bandbreite im Cholesterolgehalt zwischen 38 und 43mg/100 g auf. Alle Fischstäbchen aus Magerfischen enthielten niedrige Gehalte an Cholesterol (Pangasius hypophthalmus 25, Seehecht 19, Seelachs 31 und Alaska Seehecht 28 mg/100 g), während die zwei Proben aus Tintenfischen über 100 mg/100 g lagen.AbstractNumerous fishery products from the German market have been analysed for their content of cholesterol. In total 38 different canned fishery products produced from 8 species, 4 products of sliced cold smoked Atlantic salmon, 10 species of crustacean shellfish and 25 different brands of consumer packages of fish fingers (produced from 5 species) were investigated. Canned fishery products contained amounts of cholesterol ranging from 24 to 40 mg/100 g. However, canned sprats exhibit cholesterol content as high as 107 mg/100g and canned octopus 196 mg/100 g. Crustacean shellfish was found to contain cholesterol content between 84 and 161 mg/100 g depending of species. Sliced cold smoked salmon in 200 g consumer packages showed only a little variation in cholesterol content (38-43 mg/100 g). In all fish fingers produced from lean fish species lowcholesterol content (pangasius or sutchi catfish 25, hake 19, saithe 31, and Alaska Pollack 28 mg/100 g, respectively) was found, whereas two products produced from squid exceeded 100 mg/100 g.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute of Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung - Information on Fishery Research in 2010
    Keywords: Chemistry ; Fisheries ; Information Management ; fish products ; consumer protection ; chemical analysis ; nutrition advice ; healthy nutrition
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 71-79
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  • 2
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    In:  hartmut.rehbein@mri.bund.de | http://aquaticcommons.org/id/eprint/11167 | 1240 | 2013-05-17 07:56:42 | 11167 | Johann Heinrich von Thünen-Institut, Bundesforschungsinstitut für Ländliche Räume, Wald und Fischerei
    Publication Date: 2021-06-28
    Description: To ensure the authentication of fishery products lacking biological characters, rapid species identification methods are required. Two DNA- and protein-based methods, PCR-SSCP (polymerase chain reaction - single strand conformation polymorphism) of a 464 bp segment of the cytochrome b – gene and isoelectric focusing (IEF) of water-soluble proteins from fish fillets, were applied to identify fillets of (sub-) tropical fish species available on the European market. Among the samples analysed weretwo taxonomically identified species from the family Sciaenidae and one from Sphyraenidae. By comparison of DNA- and protein patterns of different samples, information about intra-species variability of patterns,and homogeneity of batches (e.g. fillet blocks or bags) can be obtained. PCR-SSCP and IEF may be useful for pre-checking of a large number of samples by food control laboratories.ZusammenfassungZur Sicherstellung der Authentizität von Fischerei-Erzeugnissen ohne biologische Merkmale sind schnelle Verfahren zur Speziesidentifizierung hilfreich. Zwei Methoden der DNA- bzw. Protein-Analyse wurden eingesetzt, um Filets (sub-) tropischer Fischarten, die auf dem europäischen Markt angeboten werden, zu identifizieren. Bei diesen Methoden handelt es sich um die PCR-SSCP (Polymerase-Kettenreaktion – Einzelstrang-Konformationspolymorphismus) – Analyse der PCR-Produkte und die IEF (isoelektrische Fokussierung) der wasserlöslichen Fischmuskelproteine. Unter den untersuchten Proben waren zwei taxonomisch bestimmte Arten aus der Familie Sciaenidae und eine Spezies aus der Familie Sphyraenidae. Durch Vergleich der DNA- bzw. Proteinmuster lassen sich Informationen über die intra-spezifische Variabilität solcher Muster und die Einheitlichkeit von Partien (beispielsweise Filetblöcke oder Filetbeutel) gewinnen. PCR-SSCP und IEF könnenin Laboratorien der Lebensmittelüberwachung als Vortest gerade bei hohen Probenzahlen sinnvoll eingesetzt werden.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute of Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung - Information on Fishery Research in 2010
    Keywords: Chemistry ; Fisheries ; fish species identification ; PCR ; SSCP ; IEF ; Sciaenidae ; Sphyraenidae ; Fischarten-Identifizierung
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 81-89
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  • 3
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    In:  http://aquaticcommons.org/id/eprint/11316 | 9 | 2013-09-05 19:47:11 | 11316 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 20
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  • 4
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    In:  http://aquaticcommons.org/id/eprint/11328 | 9 | 2013-09-05 19:39:50 | 11328 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 65-69
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  • 5
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    In:  http://aquaticcommons.org/id/eprint/11331 | 9 | 2013-09-05 22:46:28 | 11331 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 5-6
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  • 6
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    In:  http://aquaticcommons.org/id/eprint/11335 | 9 | 2013-09-05 22:54:51 | 11335 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 12-14
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  • 7
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    In:  http://aquaticcommons.org/id/eprint/11334 | 9 | 2013-09-05 22:50:57 | 11334 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 9-12
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  • 8
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    In:  http://aquaticcommons.org/id/eprint/11345 | 9 | 2013-09-05 23:18:02 | 11345 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 47-51
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/11341 | 9 | 2013-09-05 23:10:25 | 11341 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 31-38
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  • 10
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    In:  http://aquaticcommons.org/id/eprint/11347 | 9 | 2013-09-05 23:28:31 | 11347 | Gulf and Caribbean Fisheries Institute
    Publication Date: 2021-07-01
    Keywords: Fisheries ; GCFI
    Repository Name: AquaDocs
    Type: conference_item
    Format: application/pdf
    Format: application/pdf
    Format: 55-57
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