Quality Evaluation of Tricholoma matsutake Based on the Nucleic Acid Compounds by UPLC-TOF/MS and UPLC-QqQ/MS
Open Access
Abstract
So far, there has been no quality evaluation of Tricholoma matsutake. Nucleic acid compounds are a kind of functional ingredient in T. matsutake that is beneficial to human health. In this study, a UPLC-TOF/MS method was first used to scan and identify the potential nucleic acid compounds in T. matsutake. Based on the calculation of the molecular formula and subsequent confirmation by authentic standards, 15 nucleic acid compounds were unambiguously identified: adenosine, cytidine, guanosine, inosine, thymidine, uridine, xanthosine dehydrate, 2′-deoxyadenosine, 2′-deoxycytidine, 2′-deoxyguanosine, 2′-deoxyuridine, adenosine 5′-monophosphate, cytidine 5′-monophosphate, guanosine 5′-monophosphate, and uridine 5′-monophosphate. Then, a UPLC-QqQ/MS method was developed for the subsequent quantitative analysis. After validating the limits of quantification, detection, precision, repeatability, and recovery through a calibration curve, the content of 15 nucleic acid compounds was determined by the proposed UPLC-QqQ/MS method in 80 T. matsutake samples collected from different regions in Sichuan province, Southwest China. After the statistical analysis, we suggest that the total content of nucleic acid compounds in the qualified T. matsutake should be higher than 24.49 mg/100 g. The results indicated that the combined use of UPLC-TOF/MS and UPLC-QqQ/MS is efficient for fast identification and determination of nucleic acid compounds to comprehensively evaluate the quality of T. matsutake.Keywords
Funding Information
- the Chinese Academy of Sciences (CAS) ‘Light of West China’ Program (-)
- Self-supporting Research Project of Sichuan Provincial Centers for Disease Control and Prevention (ZX201613)
- the Collaborative Innovation Center of Sichuan for Elderly Care and Health, Chengdu Medical College (YLZBZ1820)
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