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A new TLC method to detect the presence of ground papaya seed in ground black pepper
Author(s) -
Paradkar Manish M,
Singhal Rekha S,
Kulkarni Pushpa R
Publication year - 2001
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.946
Subject(s) - pepper , chemistry , nonanal , chromatography , horticulture , food science , biology
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. © 2001 Society of Chemical Industry