Sterol Composition of Bulgarian Soya and Corn Oils
Food / Nahrung, 1977
The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as we... more The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as well as those of the technical lecithin and the deodorizer distillated of the latter oils were isolated by preparative TLC. The composition of each of the isolated sterol derivatives was determined by GLC and MS. Sitosterol, campesterol, stigmasterol and an unknown sterol with a molecular weight of 428 are contained in almost all of the examined fractions of the soya oil and its refinement byproducts. Dehydrocampesterol is present in the free sterols of the raw soya oil and the soya lecithin. Stigmasterol is contained in the soya deodorizer distillate in high amounts. It was established that cholesterol was present in the sterol esters of the raw soya oil high amounts. Delta7-stigmastenol occurs only in the sterol esters of the latter oil. Sitosterol, campesterol and stimgasterol are the main components of all sterol fractions of the corn oil and its refinement products. Dehydrocampesterol and unknown sterols with molecular weights of 428 are present in the free sterols of the raw corn oil. Some sterol glycosides of the soya and corn lecithin are esterified with the same major fatty acid components of the glycerides, palmitic acid being the main one. The fatty acid compositon of sterol esters of the raw soya and corn oil roughly corresponds to the fatty acid composition of oils.
Sterol Composition of Bulgarian Soya and Corn Oils
Food / Nahrung, 1977
The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as we... more The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as well as those of the technical lecithin and the deodorizer distillated of the latter oils were isolated by preparative TLC. The composition of each of the isolated sterol derivatives was determined by GLC and MS. Sitosterol, campesterol, stigmasterol and an unknown sterol with a molecular weight of 428 are contained in almost all of the examined fractions of the soya oil and its refinement byproducts. Dehydrocampesterol is present in the free sterols of the raw soya oil and the soya lecithin. Stigmasterol is contained in the soya deodorizer distillate in high amounts. It was established that cholesterol was present in the sterol esters of the raw soya oil high amounts. Delta7-stigmastenol occurs only in the sterol esters of the latter oil. Sitosterol, campesterol and stimgasterol are the main components of all sterol fractions of the corn oil and its refinement products. Dehydrocampesterol and unknown sterols with molecular weights of 428 are present in the free sterols of the raw corn oil. Some sterol glycosides of the soya and corn lecithin are esterified with the same major fatty acid components of the glycerides, palmitic acid being the main one. The fatty acid compositon of sterol esters of the raw soya and corn oil roughly corresponds to the fatty acid composition of oils.
Neue Methoden fur die Cardenolidsynthese werden beschrieben. Der Lactonring wird durch Spaltung d... more Neue Methoden fur die Cardenolidsynthese werden beschrieben. Der Lactonring wird durch Spaltung der aus Dienolethern (wie 18) und Singulettsauerstoff gebildeten Dioxan-Zwischenstufen (wie 19) mit Triethylamin aufgebaut. Die 14P-OH-Gruppe wird durch photochemische Umlagerung des 12-Ketons 20 zum Secoaldehyd 24 und saurekatalysierte Cyclisierung oder durch Uberfuhrung von 24 in das Mesylat 32 und Solvolyse eingefuhrt. Die Anwendbarkeit dieser Verfahren wird an Synthesen von Digoxigenin (28) und Digitoxigenin (1) demonstriert.
Sterol Composition of Bulgarian Soya and Corn Oils
Food / Nahrung, 1977
The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as we... more The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as well as those of the technical lecithin and the deodorizer distillated of the latter oils were isolated by preparative TLC. The composition of each of the isolated sterol derivatives was determined by GLC and MS. Sitosterol, campesterol, stigmasterol and an unknown sterol with a molecular weight of 428 are contained in almost all of the examined fractions of the soya oil and its refinement byproducts. Dehydrocampesterol is present in the free sterols of the raw soya oil and the soya lecithin. Stigmasterol is contained in the soya deodorizer distillate in high amounts. It was established that cholesterol was present in the sterol esters of the raw soya oil high amounts. Delta7-stigmastenol occurs only in the sterol esters of the latter oil. Sitosterol, campesterol and stimgasterol are the main components of all sterol fractions of the corn oil and its refinement products. Dehydrocampesterol and unknown sterols with molecular weights of 428 are present in the free sterols of the raw corn oil. Some sterol glycosides of the soya and corn lecithin are esterified with the same major fatty acid components of the glycerides, palmitic acid being the main one. The fatty acid compositon of sterol esters of the raw soya and corn oil roughly corresponds to the fatty acid composition of oils.
Sterol Composition of Bulgarian Soya and Corn Oils
Food / Nahrung, 1977
The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as we... more The free sterols, the sterol esters and the sterol glycosides of the raw soya and corn oils as well as those of the technical lecithin and the deodorizer distillated of the latter oils were isolated by preparative TLC. The composition of each of the isolated sterol derivatives was determined by GLC and MS. Sitosterol, campesterol, stigmasterol and an unknown sterol with a molecular weight of 428 are contained in almost all of the examined fractions of the soya oil and its refinement byproducts. Dehydrocampesterol is present in the free sterols of the raw soya oil and the soya lecithin. Stigmasterol is contained in the soya deodorizer distillate in high amounts. It was established that cholesterol was present in the sterol esters of the raw soya oil high amounts. Delta7-stigmastenol occurs only in the sterol esters of the latter oil. Sitosterol, campesterol and stimgasterol are the main components of all sterol fractions of the corn oil and its refinement products. Dehydrocampesterol and unknown sterols with molecular weights of 428 are present in the free sterols of the raw corn oil. Some sterol glycosides of the soya and corn lecithin are esterified with the same major fatty acid components of the glycerides, palmitic acid being the main one. The fatty acid compositon of sterol esters of the raw soya and corn oil roughly corresponds to the fatty acid composition of oils.
Neue Methoden fur die Cardenolidsynthese werden beschrieben. Der Lactonring wird durch Spaltung d... more Neue Methoden fur die Cardenolidsynthese werden beschrieben. Der Lactonring wird durch Spaltung der aus Dienolethern (wie 18) und Singulettsauerstoff gebildeten Dioxan-Zwischenstufen (wie 19) mit Triethylamin aufgebaut. Die 14P-OH-Gruppe wird durch photochemische Umlagerung des 12-Ketons 20 zum Secoaldehyd 24 und saurekatalysierte Cyclisierung oder durch Uberfuhrung von 24 in das Mesylat 32 und Solvolyse eingefuhrt. Die Anwendbarkeit dieser Verfahren wird an Synthesen von Digoxigenin (28) und Digitoxigenin (1) demonstriert.
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