Determination of sorbitan tristearate in vegetable oils and fats |
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Authors: | Karen Thyssen Karsten Stig Andersen |
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Affiliation: | (1) Analytical Department, Aarhus Oliefabrik A/S, M.P. Bruuns Gade 27, 8100 Aarhus C, Denmark |
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Abstract: | A new method for analysis of Sorbitan Tristearate (STS) in vegetable oils and fats has been developed. The method is based
on isolation and hydrolysis of STS compounds in a silica cartridge. The polyalcohols are eluted from the silica cartridge
and the final separation and quantitation are done by high-performance liquid chromatography and refractive index detection.
Linearity, precision, and recovery satisfy general demands on quantitative methods. The detection limit and the quantitation
limit are well below the concentrations normally used to attain functional effects of STS in vegetable oils and fats. |
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Keywords: | Bloom retardation emulsifier high-performance liquid chromatography solid-phase extraction sorbitan tristearate STS vegetable oil |
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