Journal
ACTA PHARMACEUTICA SINICA B
Volume 7, Issue 6, Pages 647-656Publisher
INST MATERIA MEDICA, CHINESE ACAD MEDICAL SCIENCES
DOI: 10.1016/j.apsb.2017.07.003
Keywords
Cistanche deserticol; H-1 NMR-based metaboloinics; Processing workflow; Different parts; Phenylethanoid glycoside; Tricarboxylic acid cycle metabolites; Echinacoside; Acteoside
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Funding
- National Natural Science Foundation of China [81222051, 81403073]
- Quality Guarantee System of Chinese Herbal Medicines [201507002]
- International Quality Standards R&D Program of Traditional Chinese Medicine [201307002]
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Cistanche deserticola (CD) is one of the two authoritative source plants of Cistanches Herba, a well-known medicinal plant. Herein, H-1 NMR spectroscopy was employed to characterize the chemical profile and to distinguish the different parts, as well as to propose a new processing workflow for CD. Signal assignment was achieved by multiple one and two dimensional NMR spectroscopic techniques in combination with available databases and authentic compounds. The upper parts of the plant were distinguished from the lower parts by combining H-1 NMR spectroscopic dataset with multivariate statistical analysis. A new processing method that hyphenated steaming with freeze-drying, was demonstrated to be superior to either steaming coupled with oven-drying or direct freeze-drying via holistic H-1 NMR-based metabolomic characterization. Phenylethanoid glycosides, mainly echinacoside and acteoside, were screened out and confirmed as the chemical markers responsible for exhibiting the superiority of the new processing workflow, whereas serial primary metabolites, especially carbohydrates and tricarboxylic acid cycle metabolites, were found as the primary molecules governing the discrimination between the upper and lower parts of the plant. Collectively, H-1 NMR spectroscopy was demonstrated as a versatile analytical tool to characterize the chemical profile and to guide the indepth exploitation of CD by providing comprehensive qualitative and quantitative information. (C) 2017 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND.
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