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Stability of limonin glucoside in beverage matrices
Author(s) -
Breksa III Andrew P,
Hidalgo Marlene B,
Wong Rosalind Y
Publication year - 2008
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.3344
Subject(s) - limonin , glucoside , chemistry , chromatography , medicine , alternative medicine , pathology
BACKGROUND: We completed a study over a 200‐day period examining the stability of limonin glucoside formulated into three beverage matrices. RESULTS: Beverages containing limonin glucoside were found to contain limonin (0.13–20.10 mg L −1 ) during their initial testing; however, these concentrations were directly attributable to the presence of contaminating limonin in the particular lot of limonin glucoside used to prepare the beverage and did not increase over the test period. Likewise, limonin glucoside concentrations did not vary significantly, with the exception of the beverage matrix that included vitamin B 2 . Exposure of the vitamin B 2 ‐containing beverages to light resulted in a rapid reduction in the limonin glucoside content. Liquid chromatographic–mass spectrometric and nuclear magnetic resonance results from the analyses of pre‐ and post‐light exposed beverages suggest photooxidation of the furan moiety as the likely degradation pathway. CONCLUSION: Results from this study indicate that limonin glucoside is resistant to degradation into limonin, the stability of limonin glucoside formulated into beverages exceeds six months and that limonin glucoside should not be formulated into beverages containing vitamin B 2 unless the beverages are protected from light. Published in 2008 by John Wiley & Sons, Ltd.