The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil
Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Johansson, Anna [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1979 |
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| Schlagwörter: |
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| Anmerkung: |
© American Oil Chemists’ Society 1979 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of the American Oil Chemists’ Society - Springer-Verlag, 1947, 56(1979), 10 vom: Okt., Seite 886-889 |
|---|---|
| Übergeordnetes Werk: |
volume:56 ; year:1979 ; number:10 ; month:10 ; pages:886-889 |
| Links: |
|---|
| DOI / URN: |
10.1007/BF02676360 |
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| Katalog-ID: |
OLC2068072947 |
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| 520 | |a Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. | ||
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10.1007/BF02676360 doi (DE-627)OLC2068072947 (DE-He213)BF02676360-p DE-627 ger DE-627 rakwb eng 660 VZ Johansson, Anna verfasserin aut The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil 1979 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Oil Chemists’ Society 1979 Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. Sitosterol Stigmasterol Campesterol Refining Process Sterol Ester Hoffmann, Ilona aut Enthalten in Journal of the American Oil Chemists’ Society Springer-Verlag, 1947 56(1979), 10 vom: Okt., Seite 886-889 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:56 year:1979 number:10 month:10 pages:886-889 https://doi.org/10.1007/BF02676360 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_26 GBV_ILN_40 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2360 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4219 GBV_ILN_4306 GBV_ILN_4315 AR 56 1979 10 10 886-889 |
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10.1007/BF02676360 doi (DE-627)OLC2068072947 (DE-He213)BF02676360-p DE-627 ger DE-627 rakwb eng 660 VZ Johansson, Anna verfasserin aut The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil 1979 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Oil Chemists’ Society 1979 Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. Sitosterol Stigmasterol Campesterol Refining Process Sterol Ester Hoffmann, Ilona aut Enthalten in Journal of the American Oil Chemists’ Society Springer-Verlag, 1947 56(1979), 10 vom: Okt., Seite 886-889 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:56 year:1979 number:10 month:10 pages:886-889 https://doi.org/10.1007/BF02676360 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_26 GBV_ILN_40 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2360 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4219 GBV_ILN_4306 GBV_ILN_4315 AR 56 1979 10 10 886-889 |
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10.1007/BF02676360 doi (DE-627)OLC2068072947 (DE-He213)BF02676360-p DE-627 ger DE-627 rakwb eng 660 VZ Johansson, Anna verfasserin aut The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil 1979 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Oil Chemists’ Society 1979 Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. Sitosterol Stigmasterol Campesterol Refining Process Sterol Ester Hoffmann, Ilona aut Enthalten in Journal of the American Oil Chemists’ Society Springer-Verlag, 1947 56(1979), 10 vom: Okt., Seite 886-889 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:56 year:1979 number:10 month:10 pages:886-889 https://doi.org/10.1007/BF02676360 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_26 GBV_ILN_40 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2360 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4219 GBV_ILN_4306 GBV_ILN_4315 AR 56 1979 10 10 886-889 |
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10.1007/BF02676360 doi (DE-627)OLC2068072947 (DE-He213)BF02676360-p DE-627 ger DE-627 rakwb eng 660 VZ Johansson, Anna verfasserin aut The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil 1979 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Oil Chemists’ Society 1979 Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. Sitosterol Stigmasterol Campesterol Refining Process Sterol Ester Hoffmann, Ilona aut Enthalten in Journal of the American Oil Chemists’ Society Springer-Verlag, 1947 56(1979), 10 vom: Okt., Seite 886-889 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:56 year:1979 number:10 month:10 pages:886-889 https://doi.org/10.1007/BF02676360 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_26 GBV_ILN_40 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2360 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4219 GBV_ILN_4306 GBV_ILN_4315 AR 56 1979 10 10 886-889 |
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10.1007/BF02676360 doi (DE-627)OLC2068072947 (DE-He213)BF02676360-p DE-627 ger DE-627 rakwb eng 660 VZ Johansson, Anna verfasserin aut The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil 1979 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © American Oil Chemists’ Society 1979 Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. Sitosterol Stigmasterol Campesterol Refining Process Sterol Ester Hoffmann, Ilona aut Enthalten in Journal of the American Oil Chemists’ Society Springer-Verlag, 1947 56(1979), 10 vom: Okt., Seite 886-889 (DE-627)129595691 (DE-600)240684-6 (DE-576)015088715 0003-021X nnns volume:56 year:1979 number:10 month:10 pages:886-889 https://doi.org/10.1007/BF02676360 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_26 GBV_ILN_40 GBV_ILN_70 GBV_ILN_95 GBV_ILN_2360 GBV_ILN_4012 GBV_ILN_4036 GBV_ILN_4046 GBV_ILN_4219 GBV_ILN_4306 GBV_ILN_4315 AR 56 1979 10 10 886-889 |
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660 VZ The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil Sitosterol Stigmasterol Campesterol Refining Process Sterol Ester |
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The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil |
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The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil |
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Johansson, Anna |
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Journal of the American Oil Chemists’ Society |
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Johansson, Anna Hoffmann, Ilona |
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the effect of processing on the content and composition of free sterols and sterol esters in soybean oil |
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The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil |
| abstract |
Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. © American Oil Chemists’ Society 1979 |
| abstractGer |
Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. © American Oil Chemists’ Society 1979 |
| abstract_unstemmed |
Abstract The content and composition of free sterols and sterol esters in crude soybean oil and in oils from different stages of two continuous refining systems were determined. The sterols were isolated by preparative thin layer chromatography and analyzed by gas chromatography with cholesterol as an internal standard. The free sterols in one of the degummed oils amounted to 3.1 mg/g and were diminished to 1.8 mg/g oil by the De Laval Short-Mix refining process. The content of free sterols of the other degummed oil was reduced from 3.4 to 1.6 mg/g oil by the Zenith process. The greatest reduction of sterol content was caused by the treatment with bleaching earth. The sterol esters accounted for 0.6 mg/g of the degummed oil, and only very small changes were observed during the processes. However, changes in the composition of fatty acids of the sterol esters were found. These changes might indicate a selective deacylation of sterol esters or an interesterification during the refining processes. The composition of sterols in free and esterified form were different. Campesterol, stigmasterol and sitosterol were obtained in both free and esterified form, but Δ7 stigmasterol was only found in esterified form. Only small changes in the percentage distribution of the sterols occurred during the processes. © American Oil Chemists’ Society 1979 |
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The Effect of processing on the content and composition of free sterols and sterol esters in soybean oil |
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