A new TLC method to detect the presence of ground papaya seed in ground black pepper
2001
A simple TLC method to detect the adulteration of black pepper powder with ground papaya seed was developed. Ethylene dichloride extracts showed a fluorescent spot at 366 nm at R(f) 0.943 that proved to be a promising marker for the presence of papaya seed powder in black pepper powder even at a level of 20 g kg(-1). Partial purification by column chromatography followed by GC/MS analysis indicated that this fluorescent marker was a mixture of aldehydes such as n-nonanal, 2-decenal and trans-2-undecenal which were absent from black pepper.
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