ANALYSIS OF DISODIUM 5’-GUANYLATE AND DISODIUM 5’-INOSINATE AS FLAVOR ENHANCER IN FOOD SPICES BY THIN-LAYER CHROMATOGRAPHY–DENSITOMETRY

  • Viona Prima Dyta Department of Pharmacy, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.
  • Harmita . Department of Pharmacy, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.
  • Baitha Palanggatan M Department of Pharmacy, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.

Abstract

Objective: The objective of this study was to obtain an optimum and valid method of analysis to determine the levels of disodium 5’-guanylate (DSG)
and disodium 5’-inosinate (DSI) in six samples of spices.
Methods: The optimum method was obtained using silica gel 60 F254 as the stationary phase and isopropanol:water:25% ammonia at a ratio of 6:3:1
(v/v) as the mobile phase. The developed spots were scanned using a densitometer in absorbance mode at 260 nm. The methods were valid based
on the accuracy criteria (DSG, 99.11–99.96%, and DSI, 98.56–101.05%), precision (DSG, 1.09%, and DSI, 0.49%), and linearity (DSG, r=0.9909, and
DSI, r=0.9976).
Results: The results showed that the levels of DSG in samples A, B, C, D, E, and F were 0.70%, 0.79%, 0.78%, 0.99%, 1.08%, and 1.08% and those of
DSI were 0.66%, 0.74%, 0.71%, 0.66%, 0.54%, and 0.67%, respectively.
Conclusion: The optimum conditions of DSG and DSI for thin-layer chromatography-densitometry were obtained with silica gel 60 F254 as the
stationary phase, isopropanol:water:25% ammonia (6:3:1) as the mobile phase, and a maximum wavelength of about 260 nm. Validation results
indicated that the accuracy of the analytical method for DSG was about 99.11–99.96% with a coefficient variation (precision) of 0.70–1.41%, while
that for DSI was 98.56–101.05% with a coefficient variation of 0.23–0.75%. The correlation coefficients for the analytical method for DSG and DSI
were 0.9909 and 0.9976, respectively. The results determined that the levels of DSG and DSI in samples A, B, C, D, E, and F were 0.70%/0.60%,
0.79%/0.74%, 0.78%/0.71%, 0.99%/0.66%; 1.08%/0.54%, and 1.08%/0.67%, respectively.

Keywords: Disodium 5’-guanylate, Disodium 5’-inosinate, Thin-layer chromatography-densitometry, Optimization, Validation.

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How to Cite
Dyta, V. P., ., H., & M, B. P. (2018). ANALYSIS OF DISODIUM 5’-GUANYLATE AND DISODIUM 5’-INOSINATE AS FLAVOR ENHANCER IN FOOD SPICES BY THIN-LAYER CHROMATOGRAPHY–DENSITOMETRY. International Journal of Applied Pharmaceutics, 10(1), 51-55. https://doi.org/10.22159/ijap.2018.v10s1.11
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