2 English reference Chenpi [Landau Chinese-English Dictionary]
Chenpi [Xiangya Medical Dictionary]
Orange peel [Xiangya Medical Dictionary]
Chenpi [Xiangya Medical Dictionary]
Committee on terminology of traditional Chinese medicine. Terminology of Traditional Chinese Medicine (2004)]
Chenpi [Terminology Committee of Traditional Chinese Medicine]. Terminology of Traditional Chinese Medicine (2004)]
3 Overview Chenpi is the name of traditional Chinese medicine, and Dietotherapy Materia Medica was published. It is the square name of orange peel recorded in Shennong Herbal Classic [1]. Orange peel is the dry and mature peel of Rutaceae citrus and its cultivated varieties [2].
Latin name of Pericarpium Citri Tangerinae (La) (terminology of traditional Chinese medicine (2004))
5 English name Chenpi (Chinese medicine terminology (2004))
Six nicknames of dried tangerine peel: orange peel, red peel and yellow peel [3].
Qiyuan Chenpi is the mature peel of Rutaceae citrus and its varieties [3].
Pericarpium Citri Tangerinae is the dried and mature pericarp of Rutaceae citrus and its cultivated varieties [2].
8 Origin Chenpi is mainly produced in Sichuan, Zhejiang, Fujian and other places [3].
9. Dried tangerine peel is pungent, bitter and warm. Into the spleen and lung meridian [3].
10 efficacy and indications Chenpi has the efficacy of regulating qi, strengthening spleen, eliminating dampness and resolving phlegm [3].
Chenpi is used to treat qi stagnation of spleen and stomach, abdominal distension, dyspepsia, vomiting and hiccups: decoction, 3-9g [3].
Chenpi decoction for treating dampness, phlegm and blood stasis, chest obstruction and cough with excessive phlegm, 3 ~ 9g [3].
Chenpi is used to treat burns. Fresh orange peel is mashed, bottled and liquefied, and then dipped into the wound several times a day [3].
Chenpi is a commonly used qi-regulating medicine in ophthalmology, which has the effects of regulating qi, neutralizing dampness and resolving phlegm.
(1) is used for infantile malnutrition caused by qi stagnation of the spleen and stomach, or spleen deficiency, with symptoms of abdominal distension, pain, diarrhea and lack of appetite. It is often used with Huanglian, Jianqu and Guya.
(2) Used for phlegm core, blurred vision, abnormal vision, etc. caused by water-dampness stagnation or phlegm-dampness stagnation. Usually used with Poria cocos and Pinellia ternata.
1 1 chemical constituents Citrus exocarp contains volatile oil, mainly limonene, and also contains hesperidin, neohesperidin, citrinin and 5- demethylcitrinin [3].
12 pharmacological effects The volatile oil of dried tangerine peel has a slight effect on gastrointestinal tract, promoting the secretion of digestive juice, eliminating the accumulation of intestinal gas, and has a slight expectorant effect [3].
Hesperidin is similar to vitamin P, which has anti-inflammatory, anti-gastric ulcer formation and cholagogic effects [3].
Vitamin B 1 is rich in content, which has certain anti-atherosclerosis effect in animals [3].
Chenpi decoction can inhibit gastrointestinal smooth muscle and has certain spasmolytic effect [3].
The pharmacopoeia standard of 13 Chenpi 13. 1 is called Chenpi.
dried orange peel
CITRI tangerine peel
13.2 Source This product is the dried and mature pericarp of Chenpi of Rutaceae and its cultivated varieties. Medicinal materials are divided into "Chenpi" and "Guangpi". Picking ripe fruits, peeling, sun drying or low temperature drying.
13.3 characteristics 13.3. 1 dried tangerine peel is often peeled into several petals, the bases of which are connected, and some of them are irregular slices with the thickness of 1 ~ 4 mm ... The outer surface is orange-red or reddish-brown, with fine wrinkles and sunken punctate oil cavities; The inner surface is yellowish white and rough, with yellowish white or yellowish brown fibrous vascular bundles. The quality is slightly hard and fragile. The smell is fragrant and the taste is spicy and bitter.
13.3.2 Pericarpium Citri Tangerinae is usually connected by 3 petals, with a neat shape and uniform thickness, about1mm.. The punctate oil chamber is large, transparent and clear to light. The quality is softer.
13.4 Identification (1) The powder of this product is yellowish white to yellowish brown. The mesocarp has many parenchyma, irregular cell shape and uneven wall thickness, and some of them are beaded. The surface of epidermal cells in pericarp is polygonal, square or rectangular, the vertical wall is slightly thick, the stomata are round, and the diameter is 18 ~ 26 microns. The secondary guard cells are unclear. Viewed from the side, it thickens from stratum corneum and outer diameter to the wall. Square crystals of calcium oxalate exist in the parenchyma cells of mesocarp, which are polyhedral, rhombic or biconical, with a diameter of 3-34 microns and a length of 5-53 μ m. Some cells contain parallel twins or 3-5 square crystals composed of two polyhedrons. Hesperidin crystals mostly exist in parenchyma cells, which are yellow or colorless, round or amorphous, and some of them can be seen with radial stripes. Threaded catheter, grooved catheter, reticulated catheter and tracheid are smaller.
(2) Take 0.3g of this product powder, add 10ml of methanol, heat and reflux for 20min, filter, take 5ml of filtrate, and concentrate to 1ml as the test solution. In addition, take hesperidin reference substance and add methanol to make saturated solution as reference substance solution. According to the thin-layer chromatography test (Appendix ⅵ b), absorb 2μl of each of the above two solutions, respectively spot them on the same silica gel G thin-layer plate prepared with 0.5% sodium hydroxide solution, use ethyl acetate methanol water (100: 17: 13) as the developing agent, spread them to about 3cm, take them out and dry them, and then. In the chromatogram of the test sample, fluorescent spots with the same color appear in the position corresponding to the chromatogram of the control sample.
13.5 Check that the moisture content of 13.5. 1 shall not exceed 13.0% (appendix ⅸ h second method).
13.5.2 determine aflatoxin according to the aflatoxin determination method (appendix VII V).
Take about 5g of this product powder (pass through No.2 sieve), weigh it accurately, add 3g of sodium chloride, and measure and calculate it according to the preparation method of the test sample under aflatoxin determination method.
Every 1000g of this product contains no more than 5μg of aflatoxin B 1, and the total amount of aflatoxin G2, aflatoxin G 1, aflatoxin B2 and aflatoxin B 1 shall not exceed10 μ g. ..
The content of 13.6 was determined by HPLC (appendix ⅵ d).
13.6. 1 chromatographic conditions and system applicability test: octadecylsilane bonded silica gel is used as filler; Methanol and acetic acid water (35: 4: 6 1) are mobile phases; The detection wavelength is 283 nm. The theoretical plate number should be no less than 2000 calculated by hesperidin peak.
13.6.2 preparation of reference substance solution: take an appropriate amount of hesperidin reference substance, weigh it accurately, and add methanol to make a solution containing 0.4mg per 1ml.
13.6.3 Preparation of test solution Take the crude powder of this product about 1g, weigh it accurately, put it in Soxhlet extractor, add 80ml of petroleum ether (60 ~ 90℃), heat and reflux for 2 ~ 3 hours, remove the petroleum ether, evaporate the residue, add 80 ml of methanol, heat and reflux until the extract is colorless, cool and filter.
13.6.4 determination method Accurately suck 5μl of control solution and 5 μ l of test solution respectively, inject them into a liquid chromatograph, and determine them.
The content of hesperidin (C28H340 15) in this product shall not be less than 3.5% in terms of dry product.
13.7 dried tangerine peel slices 13.7. 1 removing impurities, spraying water, fully wetting, shredding and drying.
The product is in irregular strips or filaments. The outer surface is orange-red or reddish-brown, with fine wrinkles and sunken punctate oil cavities. The inner surface is yellowish white and rough, with yellowish white or yellowish brown fibrous vascular bundles. The smell is fragrant and the taste is spicy and bitter.
The content of 13.7.2 is the same as that of medicinal materials, and the content of hesperidin (C28H34O 15) shall not be less than 2.5%.
13.7.3 Identification and inspection of the same medicinal materials.
13.7.4 Bitter, pungent and warm in nature. Enter the lung meridian and spleen meridian.
13.7.5 Functions and indications: regulating qi and invigorating spleen, eliminating dampness and resolving phlegm. Used for abdominal distension, anorexia, vomiting and diarrhea, cough and excessive phlegm.
13.7.6 Usage and dosage 3 ~ 10g.
13.7.7 Store in a cool and dry place to prevent mildew and moth.
Note: The main cultivated varieties are' tea geometrid',' Dahongpao',' Wenzhou mandarin orange' and' Fuju mandarin orange'.
13.8 source: People's Republic of China (PRC) Pharmacopoeia (20 10 version).
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