Development and Validation of a Unique HPLC-ELSD Method for Analysis of 1-Deoxynojirimycin Derived from Silkworms
2023
Cho, H.J. | Lee, S.L. | Shin, M.S. | Lee, J.H. | Lee, S.H.
A simple and accurate assay was developed for the quantitative analysis of 1-deoxynojirimycin (1-DNJ) derived from the silkworm (Bombyx mori). Normal-phase high-performance liquid chromatography coupled with an evaporative light scattering detector (HPLC-ELSD) and a hydrophilic interaction liquid chromatography column was used. Various parameters were applied to optimize the analysis method. The limits of detection and quantification of 1-DNJ were 2.97 × 10⁻³ and 9.00 × 10⁻³ mg/mL, respectively. The calibration curve showed good linearity results. The concentration range and the r² value were 0.0625–1.0 mg/mL and 0.9997, respectively. The accuracy test demonstrated a significantly high recovery rate (89.95–103.22%). The relative standard deviation was ≤ 1.00%. Thus, a method for the accurate identification and quantitative analysis of 1-DNJ in silkworms was developed. Moreover, in this procedure, the process of derivatization of 1-DNJ, which was required in previous experiments, could be eliminated. This technique may be actively utilized for the development of pharmaceuticals and health functional foods using 1-DNJ.
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