Yu Jin
StarCurcuma wenyujin Y.H.Chen et C.Ling
☯ TCM Properties
Invigorates Blood and Alleviates Pain; Courses the Liver and Resolves Constraint; Clears the Heart and cools the Blood; Benefits the Gallbladder and reduces jaundice; Opens the Orifices and Revives Consciousness
Traditional Chinese Uses
Yu Jin (curcuma tuber) is a cool, Blood-activating herb with particular affinity for the Liver, Heart, and Lung. It moves Blood and Qi, clears Heart Heat, and promotes bile flow. Its breadth of action makes it useful for menstrual irregularities and pain from Liver Qi and Blood stagnation, jaundice from Liver-Gallbladder Damp-Heat, chest pain from Blood stagnation, and the mental disturbance of Heat disturbing the Heart-Shen.
Western Herbalism Properties
Botanical Description
Curcuma wenyujin and the closely related Curcuma aromatica (Yu Jin) are perennial rhizomatous herbs in the Zingiberaceae family, growing 50 to 100 centimeters tall from a stout fleshy primary rhizome bearing pendulous secondary tuberous roots — the latter are the Yu Jin of commerce, while the primary rhizome itself yields the related medicinal Wen Yu Jin or E Zhu. The aromatic rhizome is internally bright yellow to orange-yellow, with a characteristic camphoraceous, slightly bitter aroma. Pseudostems formed by overlapping leaf sheaths bear large oblong-lanceolate to elliptic leaves 30 to 60 centimeters long, dark green with a paler midrib stripe. Inflorescences arise separately from the rhizome on a short scape, with terminal cone-like spikes of overlapping bracts; the upper sterile bracts (coma bracts) are conspicuously pink to rose-purple, while lower fertile bracts subtend pale yellow to creamy labellate flowers characteristic of the ginger family. Native to southern and southwestern China, including Zhejiang and Sichuan, and to South and Southeast Asia.
Active Constituents
Curcumol
Guaiane-type sesquiterpeneConcentration: Major sesquiterpene of the essential oil; used as a quality-control marker
A representative bioactive sesquiterpene with antitumor, anti-inflammatory, antiviral and hepatoprotective activity in experimental models. It inhibits proliferation of multiple tumor cell lines and is used pharmaceutically as an anticancer agent, aligning with the traditional blood-invigorating, mass-resolving actions.
Curdione
Germacrane-type sesquiterpeneConcentration: Major sesquiterpene; a key quality-control marker
Contributes antiplatelet, anti-inflammatory and antitumor activity; part of the essential-oil fraction responsible for the herb's blood-moving effects.
Germacrone
Germacrane-type sesquiterpeneConcentration: Major sesquiterpene; a common quality-control marker
Shows antiviral (including anti-influenza), anti-inflammatory and antitumor activity in vitro; a principal aromatic component of the essential oil.
Curcumenol
Guaiane-type sesquiterpeneConcentration: Notable sesquiterpene constituent
Exhibits anti-inflammatory, antioxidant, antibacterial, antidiabetic and anticancer activity in experimental studies and has been reported to ameliorate osteoporosis.
beta-Elemene
Elemane-type sesquiterpeneConcentration: Component of the essential oil
A well-studied antitumor sesquiterpene (the basis of elemene anticancer preparations) that promotes apoptosis in tumor cells; contributes to the mass-dissipating reputation of the herb.
Curzerenone / curcumenone / neocurdione
SesquiterpenesConcentration: Minor to moderate constituents of the essential oil
Additional aromatic sesquiterpenes contributing to the qi-moving, blood-invigorating and anti-inflammatory profile of the volatile oil.
Curcuminoids (curcumin, demethoxycurcumin, bisdemethoxycurcumin)
Diarylheptanoids (curcuminoids)Concentration: Present, generally lower than in turmeric rhizome
Yellow polyphenolic pigments with anti-inflammatory, antioxidant, choleretic and antiplatelet activity, contributing to the gallbladder-benefiting, jaundice-reducing traditional uses and to antiplatelet effects.
Essential (volatile) oil
Terpenoid volatile oilConcentration: The active aromatic fraction of the root tuber
Considered the active ingredient; the mixture of monoterpenes and sesquiterpenes underlies most documented antitumor, antiviral and blood-circulation effects of the herb.
⚠ Drug Interactions
Anticoagulant and antiplatelet drugs (warfarin, aspirin, clopidogrel, heparin)
Yu Jin invigorates the blood, and its curcuminoids and sesquiterpenes (e.g., curdione) inhibit platelet aggregation and may affect coagulation. Combined with anticoagulant or antiplatelet drugs this could produce additive antithrombotic effect and raise bleeding risk.
Clinical note: Use cautiously with anticoagulant/antiplatelet therapy; monitor for bruising or bleeding and discontinue before surgery. Traditionally cautioned in pregnancy.
Drugs metabolized by cytochrome P450 (e.g., CYP3A4/CYP2C9 substrates)
Curcuminoids present in the herb can inhibit several cytochrome P450 enzymes and drug transporters in vitro, which could theoretically alter the metabolism of co-administered CYP substrates. The clinical magnitude with typical herbal doses is uncertain.
Clinical note: Consider monitoring when combined with narrow-therapeutic-index CYP substrate drugs.
Dosage
| Form | Amount | Frequency | Duration | Population | Notes |
|---|---|---|---|---|---|
| decoction | 6-15g | Daily | — | — | — |
Preparation Methods
Decoction of the root tuber
Parts: Root tuber (dried tuberous root)
The dried root tuber (typically 3-10 g) is sliced and decocted in water, usually within a formula, to invigorate blood, move qi, resolve constraint, clear the heart and cool blood, and benefit the gallbladder for jaundice. Because much of the activity resides in the volatile oil, avoid excessively prolonged boiling.
Powder
Parts: Root tuber
The tuber ground to a fine powder for use in pills and powders, allowing the aromatic constituents to be taken without loss through boiling; used to open the orifices and revive consciousness (e.g., in warm-disease patterns with phlegm misting the heart) and to move qi and blood.
Vinegar processing
Parts: Root tuber
Stir-frying or processing the tuber with vinegar is traditionally used to strengthen its liver-coursing, constraint-resolving and pain-relieving action, guiding the herb to the liver channel.
Clinical Studies
Review of the traditional uses, phytochemistry, and pharmacology of Curcuma wenyujin Y. H. Chen et C. Ling
Comprehensive review consolidating the traditional uses, more than 160 identified compounds (dominated by sesquiterpenoids such as curcumol, curdione and germacrone), and the anti-inflammatory, antitumor, antioxidant, antibacterial, antiviral and hepatoprotective pharmacology of Curcuma wenyujin, the botanical source of Yu Jin.
Essential oil of Curcuma wenyujin induces apoptosis in human hepatoma cells
The essential oil of Curcuma wenyujin inhibited growth of human HepG2 hepatoma cells and induced apoptosis in a dose-dependent manner, providing experimental support for the antitumor, mass-resolving traditional application of the herb.
Historical Texts
Yao Xing Lun (Treatise on the Nature of Medicinals)
Tang dynasty, 7th century CEXin Xiu Ben Cao (Newly Revised Materia Medica / Tang Materia Medica)
Tang dynasty, 659 CEBen Cao Gang Mu (Compendium of Materia Medica), Li Shizhen
Ming dynasty, 1596References
- Li Y, Wu Y, Li Y, Guo F. Review of the traditional uses, phytochemistry, and pharmacology of Curcuma wenyujin Y. H. Chen et C. Ling . Journal of Ethnopharmacology (2021) [DOI]
- Zhou C, et al.. iNOS Inhibitory Activity of Sesquiterpenoids and a Monoterpenoid from the Rhizomes of Curcuma wenyujin . Journal of Natural Products (2014) [DOI]
This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.
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