DEVELOPMENT OF A HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY METHOD FOR ANALYZING DISODIUM 5′-GUANYLATE AND DISODIUM 5′-INOSINATE LEVELS IN FLAVOR ENHANCERS

  • Dwi Karina Natalia Department of Pharmacy, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.
  • Harmita . Department of Pharmacy, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.
  • Taufiq Indra Rukmana Department of Pharmacy, Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, Indonesia.

Abstract

Objective: This study aimed to develop a selective analytical method for assessing disodium 5′-guanylate and disodium 5′-inosinate levels in flavor
enhancers.
Methods: The levels were assessed using high-performance liquid chromatography (HPLC) with a photodiode array detector (PDA) (wavelength
=255 nm) and a SunFire® C18 column (250 mm × 4.6 mm × 5 μm). The mobile phase comprised a mixture of potassium phosphate buffer and an
ion pair reagent-hexane-1-sulfonic acid sodium salt - with a flow rate of 1.2 mL/min. The ion pair was used to generate a neutral equilibrium, which
resulted in increased retention of the analytes. Optimized analysis conditions were then validated regarding accuracy, precision, linearity, selectivity,
and the limits of detection and quantification.
Results: The average levels of disodium 5′-inosinate in the six analyzed samples were 0.24±1.46, 0.21±2.69, 0.58±3.26, 0.21±0.84, 0.22±3.59, and
0.47±2.21%, respectively. Regarding disodium 5′-guanylate, the average levels were 0.15±2.85, 0.15±0.12, 0.41±3.80, 0.16±1.72, 0.27±1.18, and
0.34±1.83, respectively.
Conclusion: The optimal conditions for analyzing disodium 5′-guanylate and disodium 5′-inosinateusing HPLC with a PDA and SunFire C18 column
were λ=255 nm, a mobile phase of potassium phosphate buffer and sodium hexane sulfonate, and a flow rate of 1.2 mL/min. For disodium 5′-inosinate,
its average levels in samples A–F were 0.24±1.46, 0.21±2.69, 0.58±3.26, 0.21±0.84, 0.22±3.59, and 0.47±2.21%, respectively. Meanwhile, the average
levels of disodium 5′-guanylate in the samples were 0.15±2.85, 0.15±0.12, 0.41±3.80, 0.16±1.72, 0.27±1.18, and 0.34±1.83%, respectively.

Keywords: Nil, Nil, High-performance liquid chromatography, ion pair, Photodiode array.

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How to Cite
Natalia, D. K., ., H., & Rukmana, T. I. (2018). DEVELOPMENT OF A HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY METHOD FOR ANALYZING DISODIUM 5′-GUANYLATE AND DISODIUM 5′-INOSINATE LEVELS IN FLAVOR ENHANCERS. International Journal of Applied Pharmaceutics, 10(1), 133-137. https://doi.org/10.22159/ijap.2018.v10s1.28
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