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The analytical determination of mineral oil in bread and buns: The effect of varying composition of these baked goods on mineral oil absorption
Author(s) -
Cookson M. A.,
Coppock J. B. M.
Publication year - 1951
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740021004
Subject(s) - mineral oil , mineral , chemistry , extraction (chemistry) , food science , composition (language) , pulp and paper industry , chromatography , organic chemistry , philosophy , linguistics , engineering
A method is described for the determination of mineral oil in commercial bread, which might contain added gluten and/or fat, malt breads and buns. The variation in composition of these products influences the relative quantities of mineral oil absorbed by each, and also the quantities capable of solvent‐extraction under the standard conditions described. Complete extraction of mineral oil from such products is difficult to achieve, but the ratio of mineral oil to the natural oils present in the extract obtained by solvent extraction under standard conditions is constant. Analytical results obtained with various types of bread and buns adulterated with known quantities of mineral oil permit correlation with the quantity of such oil extracted from unknown samples by the described method. This procedure is reasonably satisfactory for all the above products except malt breads. The work described in this paper has been carried out to guide the producers of baked goods in ascertaining that their products comply with the limit of 0.2% mineral oil resulting from the use of mineral oils as machinery lubricants etc. and permitted by the Mineral Oil in Food Order (1949). The variations in composition of different types of baked products and the fundamental effect these have on the quantity of mineral oil extracted under the conditions described emphasizes the difficulty confronting the public analyst in the legal interpretation of the Order. Other methods of analysis are also discussed.