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Atractylodes chinensis  (DC.) Koidz.,  Magnolia officinalis  Rehd. et Wils.,  Citrus reticulata  Blanco,  Amomum villosum  Lour.,  Pogostemon cablin  (Blanco) Benth.,  Mosla chinensis  Maxim.,  Zingiber officinale  Rosc., and  Artemisia argyi  Lévl. et Vant are eight of the extensively used herbs among Traditional Chinese Medicines (TCM) with a long history. The essential oil (EO) extracts of the eight TCMs were obtained using supercritical fluid extraction coupled with molecular distillation to investigate the chemical composition, antimicrobial, antioxidant activities, and anti-inflammatory activity for further exploration of the underlying mechanism of the various biological activities. The chemical components of the EO were analyzed by GC-MS. The antimicrobial activity was evaluated by the agar-well diffusion assay and the minimum inhibitory concentration assay. The antioxidant activity of the EO was evaluated by 1, 1-diphenyl-2-picrylhydrazyl radical and 2, 2’-azinobis (3-ethylbenzothiazoline-6-sulfonic acid ammonium salt assays. The anti-inflammatory activity of a recipe named “Shenshusan” was evaluated by the xylene-induce ear vasodilatation assay and the acetic acid-induce capillary permeability enhancement assay. Chemical constituents of the EO varied markedly among the eight species of TCMs. The EOs from  Mosla chinensis  and  Artemisia argyi  exhibited strong antimicrobial activity while the EOs from  Magnolia officinalis, Mosla chinensis  and  Zingiber officinale  exhibited strong antioxidant activity. The recipe “Shenshusan” showed significant anti-inflammatory activity (340 mg/kg for mice). This study contributes to what is known about the eight kinds of TCM possesses the potent antimicrobial, antioxidant, and anti-inflammatory activity which held great potential and can help guide future recommendations and interventions for food, medicine, and cosmetics application.

journal of essential oil bearing plants

Antimicrobial, Antioxidant, Anti-Inflammatory Activities of Eight Essential Oils Obtained from Traditional Chinese Medicines Using Supercritical Fluid Extraction Coupled Molecular Distillation