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Untersuchung von Pflanzenölen, die thermischer Belastung ausgesetzt waren
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ISBN10: 6209097782
ISBN13: 9786209097782
Publisher: Verlag Unser Wissen
Published: Oct 6 2025
Pages: 80
Weight: 0.26
Height: 0.19 Width: 6.00 Depth: 9.00
Language: German
ISBN13: 9786209097782
Publisher: Verlag Unser Wissen
Published: Oct 6 2025
Pages: 80
Weight: 0.26
Height: 0.19 Width: 6.00 Depth: 9.00
Language: German
Diese Arbeit zeigt, wie Pflanzenöle aus Raps, Mais, Oliven, Sonnenblumen und Soja in natura und unter thermischem Stress untersucht wurden. Die Anwendung der Wasserstoff-NMR erwies sich als wesentlich für die Qualitätskontrolle von Pflanzenölen, da sie die Bestimmung des Jodindex, des durchschnittlichen Molekulargewichts (MW) des Triacylglycerins, den Grad der Ungesättigtheit und den Oxidationszustand des Öls in naturbelassenem Zustand und unter beliebiger Erhitzungsdauer bestimmen zu können, was mit den traditionellen physikalisch-chemischen Methoden eine mühsame und ungenaue Aufgabe in vielen Punkten des Qualitätsanalyseprozesses gewesen wäre. Ebenso erwies sich die C13-NMR als sehr nützlich, da sie signifikante Schwankungen im C13-Kohlenstoffprofil von Ölen in natura und unter thermischer Belastung zeigte. Die Ergebnisse zeigen, dass spektroskopische Techniken heutzutage unverzichtbare Werkzeuge für die Qualitätskontrolle von Pflanzenölen sind.
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