首页|A novel strategy based on dynamic surface-enhanced Raman scattering spectroscopy (D-SERS) for the discrimination and quantification of hydroxyl-sanshools in the pericarps of genus Zanthoxylum
A novel strategy based on dynamic surface-enhanced Raman scattering spectroscopy (D-SERS) for the discrimination and quantification of hydroxyl-sanshools in the pericarps of genus Zanthoxylum
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NSTL
Elsevier
The pericarps of genus Zanthoxylum (PZ) are used as a condiment in Chinese cuisine, while hydroxyl-sanshools (HS) are primary components evoking specific pungent sensations. This study developed a novel method for distinguishing the PZ species and detecting HS in PZ by combining dynamic surface-enhanced Raman scattering spectroscopy (D-SERS) with a homogeneous gold nanorods (AuNRs) substrate. Furthermore, principal compo-nent analysis (PCA) separated the D-SERS spectra data of 26 PZ samples into two groups. The concentration of hydroxyl-alpha-sanshool (alpha-SOH) in a range of 0.1-12 mg mL(-1) displayed an excellent linear relation with the peak intensity, while the detection limit at 0.03 mg mL(-1) the requirements for detecting HS in currently known PZ. Compared to high-performance liquid chromatography (HPLC) analysis, the established method demonstrated excellent accuracy in PZ samples. This study provided an alternative method based on D-SERS coupled with AuNRs for rapidly and accurately determinating HS in PZ samples.
Dynamic surface-enhanced Raman scattering & nbspspectroscopyPericarp of genus ZanthoxylumHydroxyl-sanshoolsGold nanorodsPrincipal component analysisCLASSIFICATIONARMATUMAMIDESTOOL
NSTL
Elsevier
