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Colorimetric Estimation of Allyl Isothiocyanate Content in Mustard and Rapeseed Oils

✍ Scribed by Mukhopadhyay, S. ;Bhattacharyya, D. K.

Publisher: John Wiley and Sons
Year: 1983
Weight: 255 KB
Volume: 85
Category: Article
ISSN: 0931-5985
DOI: 10.1002/lipi.19830850804

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✦ Synopsis

h a r y y a *

A colorimetricmethodbasedonthecolourreactionbetweenallyl thourea and potassium femcyanide solution in dilute acetic acid has been developed for thedeterminationofallyl isothiocyanatecontent inmustardand rapeseed oils. The method measures the optical density of the colour complex at 600 nm and it works in the range 2.5 to 7.5 pg of allyl isothiocyanate perm1 of the colour solution. Mustard and rape oil samples analysed contain 0.40 to 0.6 O h of allyl isothiocyanate, with standard deviation of 0.002 to 0.016. The method takes around 3 hours and permits a number of sample analysis at a time.

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