Mid Infrared Multispectral Analysis for Mental Health Effect of Mildew on Quality of Gastrodia Elata Blume

DOI: https://doi.org/10.62517/jmhs.202605226

Author(s)

Yan Cai, Dianxu Ma, Yuanzhao Shen, Yuqiong Shan, Xiefei Song*

Affiliation(s)

School of Physics and Information Engineering, Zhaotong University, Zhaotong, China *Corresponding Author

Abstract

In order to systematically evaluate the impact of natural mildew process on the chemical quality of Gastrodia elata, especially its potential harm to mental health-related active ingredients and drug safety, the normal samples of Xiaocaoba homologous Gastrodia elata in Zhaotong, Yunnan Province and the samples of natural mildew in the laboratory for 27 days were selected as the objects in this study. The microscopic morphology of the mildew area was observed by biological microscope, and the infrared spectra of normal tissues, areas with different mildew types (such as lateral mildew, yellow pulp) and normal distal tissues were collected by Fourier transform infrared spectroscopy (FTIR) and attenuated total reflection (ATR) accessories, and analyzed by derivative spectroscopy and chemical imaging technology. The results showed that fungal hypha invasion caused tissue ulceration; The characteristic absorption of gastrodin (characteristic vibration of aromatic ring and glycosidic bond) and polysaccharides, which are closely related to mental health efficacy, was significantly weakened, and there was an obvious carbonyl absorption peak in the range of 1740-1700 cm-1, indicating that the mold metabolized and synthesized exogenous risk substances. It is worth noting that even if the visible mildew is removed, the chemical damage still exists, and even the recessive deterioration is detected in the distal tissue with normal appearance. Therefore, mildew not only destroys the physical structure of Gastrodia elata, but also leads to the degradation of its core active ingredients and the introduction of potential risk substances. The traditional “mold removal and retention” method has potential safety hazards.

Keywords

Gastrodia Elata; Mildew; Mid Infrared Spectrum; Chemical Quality; Mental Health; Quality Control

References

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