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.
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 / Sun, Xiaoxia; Zhang, Di; Zhao, Lei; Shi, Bolin; Sun, Yue; Shi, Jiyong; Battino, Maurizio; Wang, Guicai; Wang, Wei; Zou, Xiaobo. - In: INDUSTRIAL CROPS AND PRODUCTS. - ISSN 0926-6690. - ELETTRONICO. - 183:(2022), p. 114940. [10.1016/j.indcrop.2022.114940]
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
Maurizio Battino;
2022-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
