DETERMINATION OF VITAMIN E IN PEANUT OIL AND SOME FOODS BY FLUOROMETER AND TLC SCANNER
- VernacularTitle:薄层扫描法和荧光法测定油料和食品中维生素E
- Author:
Jingshan ZUO
;
Lijuan ZHANG
;
Ziqian CHEN
;
Weilun KE
- Publication Type:Journal Article
- From:
Acta Nutrimenta Sinica
1956;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Vitamine E in peanut oil was determined by means of f Juorometric method (Ex = 285nm, Em=324nm) and TLC scanning method (? = 292nm). Both methods include saponification of the oil, isolation o'f the unsaponifiable matters and the respective final measurements. The result of the former method indicates the total vitamine E in terms of ?-vitamine E and the latter method may indicate their ?,?,? and 6 analogues separately. These two methods are simple, time-saving and reliable. The recovery of VE and the standard deviation of replication of fluorometric method and TLC scanning method are 99.3%, ? 0.587mg/100g sample and 103.04%, ?0.959mg/100g sample respectively. Both methods are also applicable to other foods such as fortified cakes, confectionaries, infant foods etc., but the oil in these samples must be extracted before saponification.
