The efficacy and function of walnut bark

Walnut bark is a kind of traditional Chinese medicine. There are records of walnut bark in ancient Chinese medical books. Walnut bark can treat many diseases and its effects are very comprehensive. We should make good use of it.

[Other names] Catalpa bark (Gansu Handbook of Traditional Chinese Medicine), Catalpa bark (Chinese Materia Medica).

[Source] It is the branch bark or stem bark of Juglans mandshurica, a plant of the Juglandaceae family. Harvest in spring and autumn, peel off the branch bark or stem bark, and dry it in the sun.

[Habitat distribution] Produced in Henan, Hebei, Shaanxi, Heilongjiang, Jilin, Gansu and other places.

[Properties] The dry bark of the branches is often twisted into a rope or a single roll, with varying lengths, up to more than 1 meter. 1 to 2 mm thick. The outer surface is light gray-brown, smooth with knotty longitudinal stripes, and has a few light brown round protruding lenticels and triangular leaf scars. The inner surface is dark brown, smooth and has fine longitudinal lines. It is tough, not easy to break, easy to crack longitudinally, and has a fibrous cross section. No smell, taste slightly bitter and astringent. The water extract is light yellow-brown and does not show fluorescence.

[Chemical composition] The bark, leaves and outer shell contain glycosides and a large amount of tannins. The leaves contain 6.25-9.35% tannin.

[Preparation] Wash, soak, cut into pieces and dry in the sun.

【Nature and flavor】 Bitter, cold.

【Functions and indications】 Clears away heat, detoxifies, stops diarrhea, and improves eyesight. Treat diarrhea, dysentery, leucorrhea, and red eyes.

[Usage and Dosage] For oral use: decocted in water, 1.5 to 3 qian. For external use: decoct in water and wash eyes.

[Additional prescription] ① For the treatment of enteritis and dysentery: 3 grams each of walnut peel, whiteheada, and phellodendron, and 1 gram of coptis root. Decoction in water. (Selected Chinese Herbal Medicines from Shaanxi, Gansu, Ningxia and Qinghai)

[Remarks] This product is accustomed to being used as Qinpi in most parts of the country, but according to the "Compendium of Materia Medica", Qinpi should be the bark of the Fraxinus sibiricum plant of the Oleaceae family. See the entry for "Qinpi".

【Excerpt】 《*Dictionary》

【Source】 From "Chinese Materia Medica"

In the above article, we analyzed walnut bark and learned that the functions and effects of walnut bark are very extensive. As long as we know more about the medicinal properties of traditional Chinese medicine, we will not panic when encountering diseases.