1967
DOI: 10.1002/food.19670110712
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Studien über die Ausbeuten an Monoglyceriden bei der katalytischen Glycerinolyse von Triglyceriden

Abstract: Die Ausbeuten an Monoglyceriden bei der katalytischen Glycerinolyse unter den hier gewählten Versuchsbedingungen sind praktisch nicht vom Sättigungsgrad und der Kettenlänge der konstituierenden Fettsäuren abhängig, wohl aber vom Wassergehalt und Anteil an freien Fettsäuren im Ausgangsmaterial. Geringfügig anoxydierte Fette (untersucht bis Peroxidzahl 20) wirken sich ebenfalls nicht auf die Ausbeute an Monoglyceriden aus. Bei Verwendung eines Lösungsmittels (Pyridin) werden bei Temperaturen von 115–120 °C Ausbe… Show more

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Cited by 4 publications
(2 citation statements)
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“…Although yields of monoglycerides by usual nonsolvent methods of production are limited to under 70% total monoglycerides, the use of solvents for the glycerolysis reaction enables a much higher conversion. Illustrative of the advantage of employing solvents is work carried out on sunflower oil (7). Heating at 115-120 C for 3 hr using 10 parts of oil and 20 parts of glycerol with 0.3 parts NaHCO3 catalyst in excess pyridine afforded, after removal of the excess glycerol upon reaction completion, a 75% ot-monoor 83% total monoglyceride yield; the same ratio of reactants without a solvent yielded 52% t~-mono-and 58% total monoglycerides.…”
Section: + H2o16mentioning
confidence: 99%
“…Although yields of monoglycerides by usual nonsolvent methods of production are limited to under 70% total monoglycerides, the use of solvents for the glycerolysis reaction enables a much higher conversion. Illustrative of the advantage of employing solvents is work carried out on sunflower oil (7). Heating at 115-120 C for 3 hr using 10 parts of oil and 20 parts of glycerol with 0.3 parts NaHCO3 catalyst in excess pyridine afforded, after removal of the excess glycerol upon reaction completion, a 75% ot-monoor 83% total monoglyceride yield; the same ratio of reactants without a solvent yielded 52% t~-mono-and 58% total monoglycerides.…”
Section: + H2o16mentioning
confidence: 99%
“…The use of solvents has long been known to give improved reaction medium homogeneity, and consequently, to afford somewhat higher yields of monoglycerides, but the number of solvents which offer simultaneous miscibility of glycerol with the fat components is not large. Examples include 83% total (and 75% r,-mono-) with sunflower oil using pyridine (26), and also the use of phenol and cresols (27) or dioxane (28). The use of solvents for monoglyceride production necessitates the need for solvent storage, handling, solvent recovery, as well as the removal of solvent more or less completely from the product.…”
Section: Continuous Monog Lyceride Production and Other Innovationsmentioning
confidence: 99%