Stability of limonin glucoside in beverage matrices

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 we...

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Bibliographic Details
Published in:Journal of the science of food and agriculture 2008-09, Vol.88 (12), p.2194-2200
Main Authors: Breksa III, Andrew P, Hidalgo, Marlene B, Wong, Rosalind Y
Format: Article
Language:English
Subjects:
beverage
Beverages
Biological and medical sciences
chemical stability
Citrus
Food industries
food matrix
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
Glucose
glucosides
limonin
limonin glucoside
limonoids
Oxidation
photolysis
riboflavin
storage quality
Studies
Vitamin B
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Summary: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 B₂. Exposure of the vitamin B₂-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 B₂ unless the beverages are protected from light. Published in 2008 by John Wiley & Sons, Ltd.
ISSN:0022-5142
1097-0010
DOI:10.1002/jsfa.3344