how to use black pepper as adulterant
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Determination of the amount of benzyl glucosinolate (glucotropaeolin) in black pepper seed and products affords a sensitive method of determining the degree of adulteration with papaya seed. The glucotropaeolin may be estimated directly using gas chromatography, or indirectly by measuring the glucose which is quantitatively released following enzymic treatment. No attempt has been made to optimise the conditions of the extraction since, as described, the method allows detection of 0·1% papaya seed contamination/adulteration
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