Phellodendron chinense

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P402 2.jpg
P402 1.jpg

Nomenclature

Other Names:

Historical Use of Phellodendron chinense

Phellodendron chinense in Traditional Chinese Medicine

Background

Chinese Name (pinyin): Huangbo

Chinese Name  :

Common Name  :Bark of Chinese Corktree

Specific Name  : Cortex phellodendri

Scientific Name:
Collection  : The drug is collected, removed from coarse bark and dried in the sun.

Description  : Chuan Huangbo, tabular or shallowly channeled, varying in length and width, 3-6mm thick, outer surface yellowish brown, even or longitudinally furrowed, some showing scars of lenticels and remains of greyish coarse bark, inner surface dark yellow or pale brown with fine longitudinal ridges. Texture light and hard, fracture fibrous showing lobelike layes, dark yellow, odour slight, taste very bitter, viscous after chewing.Guan Huangbo: 2-4mm thick, outer surface yellowish green or pale brownish yellow, relatively even with irregular longitudinal fissures, scars of lenticels small and infrequently visible, occasionally remaining greyish-white coarse bark. Inner surface yellow or yellowish brown, texture light and relatively hard, fracture bright yellow or yellowish green.

Identification  : 1.Powder: Greenish yellow or yellow, fibres bright yellow, 16-38µm in diameter, often in bundles, sorounded by parenchymatous cells containing prisms of calcium oxalate forming crystal fibres, the walls of crystal cells lignified and thickened. Stone cells bright yellow, subrounded or fusiform, 35-128µm in diameter, some branched sharp at the top, walls thickened with striations distinct. Prisms of calcium oxalate up to 24µm in diameter.2.To 1g of the powder, add 10ml of ether, shake well, filter and evaporate the filtrate to dryness. Dissolve the residue in 1ml of glacial acetic acid, add 1 drop of sulfuric acid and allow to stand, a purplish brown colour is produced..3.Heat under reflux 0.1g of the powder with 5ml of methanol for 15 minutes on a water bath and filter. To the filtrate add methanol to produce a 5ml solution as the test solution of cortex Phellodendri reference drug in the same manner as the reference drug solution. Dissolve berberin hydrochloride CRS in methanol to produced a solution containing 0.5mg per ml as the reference solution. Carry out the method for thin layer chromatography (Appendix Vl B) using silica gel G as the coating substance and benzene-ethylacetate-isopropanol-concentrated ammonia TS (6:3:1:5:0.5) as the mobile phase. Apply separately to the plate 1µl of each of the three solutions. After developing and removal of the plate, dry it in the air and examine under ultra violet light (365nm). The fluorescent spots in the chromatogram obtained with the test solution correspond in position and colour to the spots in the chromatogram obtained with the reference drug solution. The yellow fluorescent spot in the chromatogram obtained with the test solution correspond in the position and colour to the spot in the chromatogram obtained with the reference solution.

Processing  : Eliminate foreign matter, spray with water, soften thoroughly, cut into slivers and dry.Processed with salt: Stir fry the slivers as describe under the method of stir frying with salt water (Appendix ll D) to dryness.Carbonized: Stir fry the slivers as describe under the method of carbonizing by stir frying (appendix ll D) until the surface becomes charred black.

Action  : To remove damp-heat, quench fire, counteract toxicity, and relieve consumptive fever. Cortex Phellodendri (processed with salt): To nourish yin and reduce fire.

Indication  :

Precautions  :

Dosage  : 3 to 12 g; appropraite quantity for external use.

Storage  : Preserve in a ventilated and dry place, protected from moisture.

Synonymns for Phellodendron chinense

Patent Medicines and Medicines with Multiple Ingredients that include Phellodendron chinense

Pharmaceutical Information

Chemical Constituents

Evidence or the Use of Phellodendron chinense in the Treatment of Epilepesy

Basic Science

Animal Studies

Cohort, Case-Control and Non-Randomized Trials

Randomized Controlled Trials

Meta-Analysis

1st Five Results: pubmed search

Ming-En Cheng, Zhi-Lai Zhan, Wei Zhang, Hong-Jun Yang, Jin-Zhan Shen, Hua-Sheng Peng
[Textual research of "Huangbo" in classical prescriptions].
Zhongguo Zhong Yao Za Zhi: 2019, 44(21);4768-4771
[PubMed:31872676] [WorldCat.org] [DOI] (P p)

Zhi-Peng Zhang, Xiao-Yue Wang, Zhao Zhang, Hui Yao, Xiao-Mei Zhang, Yang Zhang, Ben-Gang Zhang
##Title##
Ecol Evol: 2019, 9(18);10723-10733
[PubMed:31624576] [WorldCat.org] [DOI] (P e)

Shunming Fan, Chunling Zhang, Ting Luo, Jiaqi Wang, Yu Tang, Zhimin Chen, Lingying Yu
Limonin: A Review of Its Pharmacology, Toxicity, and Pharmacokinetics.
Molecules: 2019, 24(20);
[PubMed:31614806] [WorldCat.org] [DOI] (I e)

Tao He, Wilfred Emori, Run-Hua Zhang, Peter C Okafor, Min Yang, Chun-Ru Cheng
Detailed characterization of Phellodendron chinense Schneid and its application in the corrosion inhibition of carbon steel in acidic media.
Bioelectrochemistry: 2019, 130;107332
[PubMed:31351315] [WorldCat.org] [DOI] (I p)

Peng-Fei Wang, Yan-Ping Li, Li-Qin Ding, Shi-Jie Cao, Li-Ning Wang, Feng Qiu
##Title##
Molecules: 2019, 24(10);
[PubMed:31091775] [WorldCat.org] [DOI] (I e)

Safety

Allergies

Side Effect and Warnings

Pregnancy and Breastfeeding

Adverse Effects