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- W2080921489 abstract "Gegenüber dem herkömmlichen Entsäuerungsverfahren für pflanzliche Öle, das sich der Natronlauge bedient, hat die Neutralisation mit wäßrigem Ammoniak den Vorzug, besonders umweltfreundlich zu sein, da das Entsäuerungsmittel immer wieder im Kreislauf verwendet werden kann. Öle, insbesondere Sojaöl, von niedrigem Präoxidationsgrad können mit Ammoniak allein vollständig entsäuert werden. Eine Nachbehandlung mit 0.5 N Natronlauge bei 95-100° C senkt den Restphosphorgehalt auf 1-4 ppm. Der gleiche Effekt wird häufig durch eine Vorentschleimung mit 5% iger Ameisen- oder Citronensäure erreicht. Durch Desodorierung der mit Ammoniak entsäuerten und mit Wasser gewaschenen Öle bei 210° C erhält man neutral schmeckende Speiseöle von heller Farbe und guter Haltbarkeit. Deacidification of Vegetable Oils with Ammonia – An Environmentally Safe Refining Method Compared to conventional deacidification of vegetable oils using sodium hydroxide, neutralization with aqueous ammonia has the advantage of being safe to environment, because the deacidification agent can be repeatedly reused. Oils, especially soybean oil with low degree of oxidation, can be fully deacidified only with the help of ammonia. A post-refining with 0.5 N sodium hydroxide at 95-100° C reduces the residual phosphorus content to 1-4 ppm. The same effect can be frequently achieved by a preliminary desliming with 5% formic acid or citric acid. Deodorization at 210° C of oils that have been deacidified with ammonia and washed with water yields bland and pale edible oils having good keepability." @default.
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- W2080921489 date "1979-01-01" @default.
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- W2080921489 title "Die Entsäuerung von Pflanzenölen mit Ammoniak Eine umweltfreundliche Raffinationsmethode" @default.
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- W2080921489 doi "https://doi.org/10.1002/lipi.19790810801" @default.
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