## Abstract The presence of animal fats, in particular lard (pig fat), in any product is of real concern to some communities, especially Muslims and Jews, due to the religious prohibition of these commodities. This is especially so when lard is used as substitute for vegetable oils in foods or othe
Chromatographic Detection of Silicones in Vegetable Oils
โ Scribed by Kundu, M. K.
- Publisher
- John Wiley and Sons
- Year
- 1981
- Weight
- 234 KB
- Volume
- 83
- Category
- Article
- ISSN
- 0931-5985
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โฆ Synopsis
Abstract
The method is based upon separation of silicone in the oil by thin layer Chromatography on silica gel layer, using the solvent system petroleum, etherโdiethyl ether = 98:2 (v/v) and visualisation of the spots developed by means of Rhodamin B reagent. Under the described condition separation of silicones seems to be free from interference from other nonโsilicone containing materials. The limit of detection was approximately 2 ฮณ.
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A simple detection test for phytonadione (vitamin K1) in vegetable oil is presented. A saturated sodium ethoxide solution was used to saponify vegetable oil and react with the freed phytonadione to form a blue compound. The specificity and mechanism of the colored compound formation is discussed. K
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