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  • 1
    Publication Date: 1987-01-01
    Print ISSN: 0016-1152
    Topics: Chemistry and Pharmacology
    Published by Springer
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  • 2
    Publication Date: 1991-06-01
    Print ISSN: 0044-264X
    Electronic ISSN: 1435-1293
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Published by Springer
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nutrition 30 (1991), S. 138-152 
    ISSN: 1436-6215
    Keywords: Ribonucleosides ; RNAcatabolism ; bovinemilk ; goatmilk ; colostral phase ; lactation period ; minor milkconstituents ; buttersera ; intrinsicindicators ; differentiation ofbutter types ; HPLC ; Ribonucleoside ; RNA-Katabolismus ; Kuhmilch ; Ziegenmilch ; Kolostralphase ; Laktationsperiode ; minore Milchinhaltsstoffe ; Butterseren ; intrinsische Indikatoren ; Differenzierung von Buttersorten ; HPLC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Ribonucleoside gehören zu den minoren Inhaltsstoffen der Milch und zeigen ein tierartentypisches Ribonucleosidmuster. Neben den unmodifizierten Komponenten Adenosin, Cytidin, Guanosin, Inosin und Uridin wurden modifizierte Verbindungen wie N1-Methyladenosin und N6-Carbamoylthreonyladenosin, die aus dem Transfer RNA-Katabolismus stammen, in Einzel- und Sammelmilchen einer kleinen Herde Deutscher Schwarzbunter nachgewiesen und quantitativ über eine gesamte Laktation bestimmt. Die Verlaufsstudie hat gezeigt, daß die Konzentrationsspiegel dieser minoren Komponenten mit Ausnahme der Kolostralphase über die gesamte Laktationsperiode nur einer geringen Schwankungsbreite unterliegen. Ribonucleosidmuster sind deshalb zur Kennzeichnung von Milchen verschiedener Herkunft und Verarbeitung geeignet. Beispielhaft wurden deshalb Ribonucleoside im Verlaufe des Butterungsprozesses bilanziert und gezeigt, daß diesen minoren Komponenten „finger-print“-Eigenschaften zukommen, die zur Differenzierung der von der Butterverordnung definierten drei Buttersorten geeignet sind.
    Notes: Summary Ribonucleosides are minor milk constituents and show a typical pattern which is assumed to be species-specific. As well as the unmodified components adenosine, cytidine, guanosine, inosine, and uridine, modified compounds such as N1-methyladenosine and N6-carbamoylthreonyladenosine — products of the transfer RNA catabolism — have been identified and quantified in individual and bulk herd (race: German black pied) milk samples throughout a whole lactation period. The results of our longitudinal study have shown that — with the exception of the colostral phase — the levels of these minor constituents vary only slightly throughout lactation. These findings imply that ribonucleosides are useful for characterizing milk of different species and technological treatment. Ribonucleosides were determined and balanced, for example, in the course of the churning process, showing that the pattern of these minor milk constituents is useful as a “fingerprint” that allows differentiation between the three butter types defined in the German Federal Butter Ordinance.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 327 (1987), S. 78-79 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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