Summary of Study ST001189

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR000801. The data can be accessed directly via it's Project DOI: 10.21228/M84X26 This work is supported by NIH grant, U2C- DK119886.


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Study IDST001189
Study Title1H NMR spectroscopy-based metabolic profiling of Ophiocordyceps sinensis and Cordyceps militaris of water-boiled and 50% ethanol-soaked extracts
Study TypeNMR
Study SummaryIntroduction Ophiocordyceps sinensis, a well-known Chinese complementary herb, is a rare and valuable therapeutic resource. Cordyceps militaris (C. militaris) is a commonly used substitute for O. sinensis. A metabolomic-based approach for exploring the similarities and differences in the metabolites of O. sinensis and C. militaris in water-boiled and 50% ethanol-soaked extracts is of great significance. Objectives To determine a vital role of extraction methodologies in influencing the metabolic composition of herbs, 1HNMR-based profiling was used to characterize the metabolic fingerprints of O. sinensis and C. militaris. Methods To make a distinction between the global metabolite profiling of O. sinensis and C. militaris extracts obtained from either the water-boiled or 50% ethanol-soaked methods, we screened the herbs samples using 1HNMR-based metabolic fingerprints combined with multivariate statistical analysis. Results This study revealed that a total of 43 (82.69% of 52) metabolites were detectable in both O. sinensis and C. militaris. According to the variable importance in projection (VIP) value and p-value from the Mann-Whitney test, 7 metabolites (alanine, aspartate, glutamate, mannitol, ornithine, serine, and trehalose) differed between O. sinensis and C. militaris. Arginine, glucose, putrescine, pyroglutamate, betaine, O-phosphocholine, and xylose differed significantly between the water-boiled and 50% ethanol-soaked methods used to prepare the herb extracts. Conclusion A total of 52 primary metabolites were identified and quantified from O. sinensis and C. militaris samples. The study suggests that a water-boiled extraction is much faster method and strongly recommended over the 50% ethanol-soaked method for both O. sinensis and C. militaris.
Sun Yat-sen University
Last NameZhong
First NameXin
Submit Date2019-04-28
Raw Data AvailableYes
Raw Data File Type(s)fid
Analysis Type DetailNMR
Release Date2020-04-28
Release Version1
Xin Zhong Xin Zhong application/zip

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Sample Preparation:

Sampleprep ID:SP001264
Sampleprep Summary:The extracts were centrifuged (15 min, 13,000 rpm) at 4oC and 3 mL of supernatant was collected. The supernatant was frozen at -80oC and then dried using a vacuum centrifugal evaporator (CHRiST, Alpha 2-4/LSC, Germany). The dried residues were separately dissolved in 3 mL of distilled water. A 600 µL extract was filtered (Millipore Amicon® ULTRA 3 kDa) and filtrates were collected. 3-(Trimethylsilyl) propanesulfonic acid (50 µL) pre-dissolved in D2O (an internal standard) was subsequently added to 450 µL of the filtrates. Finally, aliquots (480 µL) of each extract were transferred to a 5 mm NMR tube (Norell, Morganton, NC, USA) for NMR analysis.