Establishment of Raman Fingerprints and Localization of Main Components of Radix <i>Angelicas sinensis</i> from Different Origins

Yan, Yunqi; Duan, Minghua; Liu, Lei; Yin, Wenjie

doi:10.1166/jbmb.2021.2033

Cited by 3 publications

(1 citation statement)

References 16 publications

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“…At present, the most widely used vibrational spectroscopy is infrared spectroscopy (IR) and Raman spectroscopy. Molecular structure of FA had been investigated by Sebastian et al [4] and Yan et al [5] using IR spectroscopy and Raman spectroscopy, respectively.…”

Section: Introductionmentioning

confidence: 99%

Theory and experiment on the terahertz vibrational spectrum of ferulic acid

Chang,

Liang,

Wei

et al. 2024

J. Opt. Soc. Am. B

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Ferulic acid (FA, C10H10O4), a type of hydroxycinnamic acid derivative, has beneficial pharmacological effects and biological activities and is known for its high application value in medicine, health care, and cosmetic products. The vibration spectrum of FA ranging from 0.3 THz to 2.0 THz has been investigated by terahertz time-domain spectroscopy. The characteristic absorption peaks located at 0.937, 1.159, 1.464, 1.694, and 1.910 THz are obtained experimentally. To understand the origin of the characteristic absorption peaks of FA, density functional theory calculations based on isolated molecule and crystalline structure are separately performed to differentiate the intramolecular and intermolecular vibrational modes. Combined analysis of the experimental and theoretical results informs that the characteristic absorption peak at 1.464 THz comes from intramolecular interaction, and the ones at 0.937, 1.159, 1.694, and 1.910 THz originate from intermolecular collective vibrational modes.

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Section: Introductionmentioning

confidence: 99%

Theory and experiment on the terahertz vibrational spectrum of ferulic acid

Chang,

Liang,

Wei

et al. 2024

J. Opt. Soc. Am. B

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Identification of Cortex Cercis chinensis Decoction Pieces from Different Growth Origins Using Raman Spectroscopy

Zhou,

Qiu,

Duan

et al. 2024

j biobased mat bioenergy

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The complexity of traditional Chinese medicine (TCM) components and the time-consuming of traditional detection methods make it necessary and meaningful to establish rapid and efficient identification techniques. This study explores the potential of Raman spectroscopy, a non-destructive technique offering details of molecular structure, for rapid and accurate identification. Cortex Cercis chinensis (CCC) decoction pieces from diverse geographical origins, Anhui, Sichuan, Zhejiang, and Hubei, were collected and analyzed using Raman spectroscopy at 785 nm, and the Raman characteristic peaks were analyzed. MATLAB software was employed to analyze the similarity between the spectra of CCC decoction pieces, and the original Raman spectral data were transformed into first and second derivative spectra. The results revealed distinct Raman spectral characteristics of carbohydrates and glycosidic bonds (characteristic peaks at 480, 531, 549, 873, 946 and 1086 cm−1). The correlation coefficients of the all the four samples from different origins ranged from 0.9625 to 0.9912, while the coincidence coefficients ranged from 0.9602 to 0.9934. The first and second derivative demonstrated significantly different peaks within specific ranges, 180–200, 280–380, and 680–740 cm−1 for first derivatives, 160–300, 340–400 and 420–480 cm−1 for second derivatives. These obvious differences in first and second derivative spectra of Raman spectra of CCC decoction pieces demonstrated the different growth origins. In conclusion, the study demonstrated the ability of Raman spectroscopy to accurately differentiate CCC decoction pieces from different geographical growth origin. These findings provided a basis for further application of Raman spectra characteristic fingerprints to be used in quality control for rapid identification of the quality and origin of TCM raw materials.

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Theory and experiment on terahertz vibrational spectrum of ferulic acid

Chang

Liang

Wei

et al. 2022

Preprint

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Ferulic acid (FA, C10H10O4), a type of hydroxycinnamic acid derivatives, has beneficial pharmacological effects and biological activities, and known for its high application value in medicine, health care and cosmetic products. The vibration spectrum of FA ranging from 0.3 THz to 2.0 THz has been investigated by terahertz time-domain spectroscopy (THz-TDS). The characteristic absorption peaks located at 0.937, 1.159, 1.464, 1.694 and 1.910 THz are obtained experimentally. To understand the origin of the characteristic absorption peaks of FA, density functional theory (DFT) calculations based on both isolated molecule and crystalline structure are performed. Combined analysis of the experimental and theoretical results informs that the characteristic absorption peak at 1.464 THz comes from intra-molecular interaction, and the ones at 0.937, 1.159, 1.694, and 1.910 THz originate from inter-molecular collective vibrational modes.

show abstract

Establishment of Raman Fingerprints and Localization of Main Components of Radix Angelicas sinensis from Different Origins

Cited by 3 publications

References 16 publications

Theory and experiment on the terahertz vibrational spectrum of ferulic acid

Theory and experiment on the terahertz vibrational spectrum of ferulic acid

Identification of Cortex Cercis chinensis Decoction Pieces from Different Growth Origins Using Raman Spectroscopy

Theory and experiment on terahertz vibrational spectrum of ferulic acid

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