Contents 1 Pinyin 2 English reference 3 Overview 4 Latin name 5 English name 6 Alias ??of linseed 7 Source and origin 8 Plant form 9 Collection and processing 10 Characters 11 Meridian tropism of nature and flavor 12 Function and indication 13 Chemical composition 14 Flax Pharmacological effects of linseed 15 Pharmacopoeia standards of linseed 15.1 Product name 15.2 Source 15.3 Characteristics 15.4 Identification 15.5 Content determination 15.5.1 Chromatographic conditions and system suitability test 15.5.2 Preparation of reference solution 15.5.3 Preparation of test solution 15.5. 4 Determination method 15.6 Linseed pieces 15.6.1 Preparation 15.6.2 Nature, flavor and meridians 15.6.3 Functions and indications 15.6.4 Usage and dosage 15.6.5 Notes 15.6.6 Storage 15.7 Source 16 References attached: 1 Chinese medicines used Flaxseed prescriptions 2 Chinese patent medicines using Chinese medicine linseed 3 Flaxseed in ancient books 1 Pinyin
yà má zǐ 2 English reference
flaxseed [Landau Chinese-English Dictionary] < /p>
linseed [Landau Chinese-English Dictionary]
mon flax seed [Xiangya Medical Professional Dictionary]
Semen Lini (拉) [Traditional Chinese Medicine Terminology Approval Committee. Terminology of Traditional Chinese Medicine (2004)]
linseed [Terminology Approval Committee of Traditional Chinese Medicine. Terminology of Traditional Chinese Medicine (2004)] 3 Overview
Linseed
Linseed is the name of a traditional Chinese medicine, which comes from "Ben Cao Tu Jing" [1]. Also known as "flax seeds". The dried and mature seeds of Linum usitatissimum L., a plant of the Linaceae family [2].
"The Pharmacopoeia of the People's Republic of China" (2010 edition) records the pharmacopoeia standards of this traditional Chinese medicine. 4 Latin name
Semen Lini (La) ("Traditional Chinese Medicine Terminology (2004)") 5 English name
linseed ("Traditional Chinese Medicine Terminology (2004)") 6 Linseed Alias
Flax seeds, tick flax, linseed[1]. 7 Source and production area
The seeds of Linum usitatissimum L., a plant of the Linaceae family [1]. Mainly produced in Inner Mongolia and Northeast China [1]. 8 Plant form
Annual herb, 40-70cm tall. The stem is upright, with many branches in the upper part. The leaves are linear to linear-lanceolate, 1 to 3 cm long, 1.5 to 2.5 cm wide, with sharp apex, entire margin, and sessile. The sepals are ovate-lanceolate, with cilia on the edges; the petals are blue or white; there are 5 stamens and 5 staminodes; the ovary has 5 cells, the style is separated, and the stigma is rod-shaped. The capsule is spherical, about 7mm in diameter, with 5 lobes at the top. Seed 10. The flowering period is from May to June, and the fruiting period is from June to September. 9 Harvesting and Processing
Harvest the plants in autumn when the fruits are ripe, dry them in the sun, lay the seeds, remove impurities, and then dry them in the sun. 10 Characteristics
Seeds are flat and oval, 4-7mm long and 2-3mm wide. The surface is reddish brown or grayish brown, smooth and shiny, with one end blunt and rounded, and the other end pointed and slightly skewed. The hilum is located in the depression at the tip and the seed ridge is located on the edge of one side. The seed coat is thin and crisp, the endosperm is membranous, brown, and the cotyledons are yellow-white and rich in oil. It tastes beany when chewed. 11. Meridian distribution of nature and flavor
Sweet, slightly warm [1]. Enters the stomach and large intestine meridians [1].
Placid in nature and sweet in taste. 12 Functions and Indications
Its functions are to dispel wind, detoxify, moisturize dryness, and kill insects [1].
1. Treat leprosy, dizziness, intestinal dryness and constipation, lung abscess, cough and vomiting pus and blood, and seborrheic alopecia [1]. Decoction: 4.5~9g; or take into pills[1].
2. Treat sores, ringworm, eczema, and itchy skin [1]. Take it orally and boil it in water to fumigate and wash the affected area [1]. 13 Chemical composition
Seed fatty oil is linseed oil. Its main components are glycerides such as linolenic acid, linoleic acid and oleic acid. It has a laxative effect and also contains mucus, protein, sugar and organic acids. and a small amount of linamarin [1]. Still contains eicosanyl ferulate [1].
Contains fatty oils, mainly composed of linolenic acid, linoleic acid, oleic acid, palmitic acid, stearic acid and other glycerides; it also contains eicosylferulate, flax Linamarin, etc.
14 Pharmacological effects of linseed
The seeds can be used for local inflammation, linaxin can produce hydrocyanic acid, and linseed oil can prevent hyperlipidemia or arteriosclerosis [1]. 15 Pharmacopoeial standards for linseed 15.1 Product name
Linseed
Yamazi
LINI SEMEN 15.2 Source
This product is flax, a plant in the Linnaceae family. Dry mature seeds of Linum usitatissimum L. In autumn, when the fruits are mature, the plants are harvested, sun-dried, seeds are laid, impurities are removed, and then sun-dried. 15.3 Characteristics
This product is flat and oval in shape, with one end blunt and the other end pointed and slightly skewed, 4 to 6 mm long and 2 to 3 mm wide. The surface is reddish brown or grayish brown, smooth and shiny, and the hilum is located in the concave part of the tip; the seed ridge is light brown and located on one edge. The seed coat is thin, the endosperm is brown and film-like; the cotyledons are 2, yellow-white, rich in oil. The smell is slight and there is a beany smell when chewed. 15.4 Identification
(1) Take a small amount of this product and soak it in warm water. The epidermal mucus layer will expand to form a transparent mucus film that surrounds the entire seed.
(2) Cross-section of this product: The epidermal cells are large, almost rectangular, with mucus-containing walls. They swell with water and show striae, and there is a stratum corneum on the outside. The hypodermis consists of 1 to 5 rows of parenchyma cells, with slightly thicker walls. The fibrous layer is a row of tightly arranged fiber cells, slightly extended in the radial direction, with a diameter of 3 to 5 μm, thick walls, lignified, narrow cell cavity, and faintly visible layer patterns. The cells of the decadent layer are not obvious. The pigment layer is a layer of flat thin-walled cells containing brown-red material. The endosperm and cotyledon cells are polygonal and contain fatty oil and aleurone grains. The aleurone particles have a diameter of 7 to 14 μm and contain 1 to 2 pseudocrystals and pseudospheres.
(3) Take 0.5g of this product powder, put it in a test tube, add a little water, hang a trinitrophenol test paper soaked in 10% sodium carbonate solution in the test tube, plug it tightly (the test paper should not come into contact with the powder and tube wall) and place it in a hot water bath for 3 to 5 minutes. The test paper will appear brick red. 15.5 Content determination
Determine according to gas chromatography (Appendix VIE). 15.5.1 Chromatographic conditions and system suitability test
Polyethylene glycol 20000 (PEG20M) capillary column (column length is 30m, inner diameter is 0.32mm, film thickness is 0.5μm); column temperature: 190°C ;The detector temperature is 250℃, the inlet temperature is 250℃; the split ratio is 25:1. The number of theoretical plates calculated based on a methyl linolenate peak should not be less than 20,000. 15.5.2 Preparation of reference solution
Take 150 mg each of linoleic acid reference substance and a-linolenic acid reference substance, weigh them accurately, place them in a conical flask, and add 10% boron trifluoride in methanol respectively. Take 1 ml of the solution and heat it in a 60°C water bath for 15 minutes, take it out and let it cool. Precisely add 10 ml of n-octane to each solution, shake thoroughly, and then add 15 ml of saturated sodium chloride solution. Precisely draw 1 ml of n-octane linoleic acid and n-octane linolenic acid solutions respectively, put them into a 5 ml measuring bottle, add n-octane to dilute to the mark, shake well, and you have it. 15.5.3 Preparation of test solution
Crush about 30g of this product (pass through No. 2 sieve), weigh it accurately, place it in a conical flask, add 200ml of petroleum ether (60~90℃), Ultrasonic treatment (power 250W, frequency 40kHz) for 30 minutes, filter, and use 150ml of petroleum ether (60-90℃) to filter the residue. Repeat the treatment once, combine the filtrate, and recover the solvent under reduced pressure to obtain fatty oil. Take 70mg of fatty oil. Weigh it accurately, place it in a conical flask, and add 0.5 mol/l. Take 1 ml of methanol solution of potassium hydroxide and heat it in a 60°C water bath for 30 minutes. Take it out and let it cool. Then add 1 ml of 10% boron trifluoride in methanol solution and heat it in a 60°C water bath for 15 minutes. Take it out and let it cool. Precisely add 5 ml of n-octane, shake thoroughly, add 20 ml of saturated sodium chloride solution, take the n-octane liquid, filter it, and take the continued filtrate to obtain (measure within 4 hours). 15.5.4 Determination method
Precisely draw 1 μl each of the reference solution and the test solution, inject them into the gas chromatograph, and measure.
Calculated as a dry product, the total content of linoleic acid (C18H3202) and alpha-linolenic acid (C18H3002) shall not be less than 13.0%. 15.6 Linseed pieces 15.6.1 Processing
Remove impurities and mash raw or stir-fry. 15.6.2 Nature, flavor and meridians
Sweet, flat. Returns to the lung, liver and large intestine meridians. 15.6.3 Functions and indications
Moisturizing and laxative, nourishing blood and dispelling wind. Used for intestinal dryness, constipation, dry skin, itching, and hair loss. 15.6.4 Usage and dosage
9～15g. 15.6.5 Note
It is prohibited for those with slippery stools and diarrhea. 15.6.6 Storage
Store in a cool, dry place to prevent moth.
15.7 Source