| Liquid chromatographic determination of tocopherols and tocotrienols in margarine, infant foods, and vegetables. | |
| | |
MedLine Citation:
|
PMID: 8757449 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
A liquid chromatographic (LC) method was developed for determination of tocopherols and tocotrienols in foods. Tocopherols and tocotrienols were released after saponification of test portions for 40 min at 80 degrees C, followed by extraction with hexane-ethyl acetate. After evaporation of the organic solvents, the extract was injected in the LC system. Separation of individual tocopherols and tocotrienols was satisfactory. Some interferences were encountered from tocomoneols, tocodienols, 2-tert-butyl-4-hydroxyanisole (BHA), 2,6-di-tert-butyl-4-methylphenol, (BHT), and plastochromanol-8. The response of the LC system was linear over a range of 0-10 micrograms/mL for tocopherols and tocotrienols. The detection limit for these compounds was 0.1 micrograms/mL. Repeatabilty relative standard deviation values for tocopherols and tocotrienols in margarine, infant formula, and broccoli (concentration range, 0.11-22 mg/100 g) varied from 1.3 to 6.4%. Recoveries ranged from 91 to 105%. |
| | |
Authors:
|
E J Konings; H H Roomans; P R Beljaars |
Related Documents
:
|
22984329 - The sanitary conditions of food service establishments and food safety knowledge and pr... 12458749 - Sample handling strategies for the determination of biophenols in food and plants. 16569029 - Supercritical co2 extraction and purification of compounds with antioxidant activity. 20544439 - Research activities on supercritical fluid science in food biotechnology. 18098119 - Content and mean polymerization degree of procyanidins in extracts obtained from clear ... 16778469 - Inotropic and lusitropic effects of perilla frutescens (l.) britton extract on the rabb... 21167649 - Aspects of quality related to the consumption and production of lamb meat. consumers ve... 7694779 - Supplemental dietary l-tryptophan effects on growth, meat quality, and brain catecholam... 22983299 - Complex impacts of an invasive omnivore and native consumers on stream communities in c... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Journal of AOAC International Volume: 79 ISSN: 1060-3271 ISO Abbreviation: J AOAC Int Publication Date: 1996 Jul-Aug |
Date Detail:
|
Created Date: 1997-02-14 Completed Date: 1997-02-14 Revised Date: 2008-03-17 |
Medline Journal Info:
|
Nlm Unique ID: 9215446 Medline TA: J AOAC Int Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 902-6 Citation Subset: IM |
Affiliation:
|
Inspectorate for Health Protection, Food Inspection Service, Maastricht, The Netherlands. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Antioxidants
/
analysis*,
metabolism Chromans / analysis, metabolism Chromatography, Liquid Food Additives Food Analysis* Freeze Drying Humans Infant Food / analysis* Infant, Newborn Margarine / analysis* Reproducibility of Results Vegetables / chemistry* Vitamin E / analogs & derivatives, analysis*, metabolism |
| Chemical | |
Reg. No./Substance:
|
0/Antioxidants; 0/Chromans; 0/Food Additives; 1406-18-4/Vitamin E; 1721-51-3/tocotrienol, alpha; 25612-59-3/tocotrienol, delta; 4382-43-8/plastochromanol 8; 490-23-3/tocotrienol, beta; 8029-82-1/Margarine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Supercritical fluid extraction of volatile N-nitrosamines in fried bacon and its drippings: method c...
Next Document: Comparison of Babcock and ether extraction methods for determination of fat content of cream: collab...