Cordyceps cicadae is an entomogenous fungus that has been used as a valuable traditional Chinese herbal tonic, however, it can be difficult to discern the false from the genuine. In this study, the macroscopic IR fingerprint methods containing Fourier transform infrared spectroscopy (FT-IR) and second derivative infrared spectroscopy (SD-IR) were used to elucidate wild C. cicadae. The TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) method was used to comprehensively evaluate C. cicadae from different geographical origins based on the macroscopic infrared spectroscopy (IR) fingerprint. The FT-IR spectra of C. cicadae exhibited the major characteristics of the absorptive peaks of carbohydrates, lipids and nucleosides at the position of 3291, 2925, 2845, 1651, 1547, 1455, 1080 and 950 cm-1. The high resolution of SD-IR further amplified the difference and revealed the potentially characteristic IR absorption spectrum. TOPSIS evaluation showed that C. cicadae from Anhui possess the strongest intensity of absorption bands among all the samples. Notably, FT-IR combined with SD-IR can effectively reveal the overall chemical components without damaging medicinal materials, and TOPSIS methods can provide a novel scientific evidence for comprehensively assessing different origins of wild C. cicadae.

• Klíčová slova
• Cordyceps cicadae, Fourier transform infrared spectroscopy (FT-IR), Geographical origins, Second derivative infrared spectroscopy (SD-IR), TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) method,
• MeSH
• Cordyceps chemie   růst a vývoj   MeSH
• léky rostlinné čínské chemie   MeSH
• lipidy chemie   MeSH
• nukleosidy chemie   MeSH
• sacharidy chemie   MeSH
• spektrofotometrie infračervená MeSH
• spektroskopie infračervená s Fourierovou transformací MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• léky rostlinné čínské MeSH
• lipidy MeSH
• nukleosidy MeSH
• sacharidy MeSH