A RAPID AND SIMPLE METHOD OF SCREENING RAPESEED AND MUSTARD SEED FOR ERUCIC ACID CONTENT

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Abstract
A rapid and simple method of screening rapeseed (Brassica napus L. and B. campestris L.) and mustard (B. juncea (L.) Coss., and B. hirta Moench) seed for erucic acid content was developed using the solubility of the oil in absolute ethanol or a mixture of methanol and n-propanol 1.7:2.0 v/v. The time required for a warm alcoholic solution of the oil to turn opaque on cooling was related to the erucic acid content. The stability of the reagent, sensitivity, simplicity and speed of the method indicates that it is suitable for identification of low and high erucic acid seed in commerce.

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