What Are the Health Benefits of Peppermint Oil?
Peppermint oil is a colorless or pale yellow clear liquid. It has a special cool aroma, which has a spicy taste at the beginning and a cold after taste. Long-term storage, deep color gradient. It is often used to drive away mosquitoes and relieve physical fatigue.
- Chinese name
- peppermint
- Foreign name
- Mentha arvensis oil (Mint oil; Cornmint oil)
- Affiliation
- Chinese medicinal herbs
- To source
- Fresh stems and leaves of mint
- Specific gravity
- (25 ° C) 0.899 ~ 0.909.
- CAS number
- 68917-18-0
- Molecular formula
- C11H9N3O2Na
- Peppermint oil is a colorless or pale yellow clear liquid. It has a special cool aroma, which has a spicy taste at the beginning and a cold after taste. Long-term storage, deep color gradient. It is often used to drive away mosquitoes and relieve physical fatigue.
Peppermint oil plant properties
- First, the root
- The mint that is cultivated in production has a real absorption effect on the fibrous roots that grow on the upright stems and underground rhizomes of the ground. These roots are about 30cm deep, and the top soil layer is about 15-20cm. In addition, when the humidity between the plants is high, many aerial roots will grow on the base and internodes of the upright stems above the ground. This aerial root will die on its own in dry weather. Growth and development hardly work.
- mint
- Second, the stem
- 1. Above-ground stems The above-ground stems of mint can be divided into two types. One is called an upright stem, square, and the color varies depending on the species. There are cyan and purple. Its main function is to plant leaves, produce branches, and associate roots with leaves, transport water and nutrients absorbed by the root system from the soil to the leaves, and transport photosynthetic products of the leaves to the root's transport channel. There are nodules and internodes on it, with nodules on the nodules and branches growing in the leaf axils. Although the surface of the stem also has a small amount of oil glands, the content of essential oil is very small (the oil yield of fresh stem products is 0.001% to 0.004%). Another is called stolon, which is formed by the buds on the base of the upright stem above the ground and germinated laterally. There are also nodes and internodes. Each node has two opposite bud scales and latent buds. The creeper grows on the ground, and sometimes the top end is drilled into the soil to continue to grow for a period of time. The top bud is then drilled out of the soil to germinate into a new seedling. Some stolons also bud directly to the leaves and grow upwards into branches. The color, number, length, and thickness of stolons often vary depending on the variety and growth conditions. 2. Underground stems are also called underground rhizomes, which are shaped like roots, so they are often called seed roots. Usually, when the local upright stem grows to a certain height (about 8 knots), rhizomes begin to grow at the base of the stem in the shallow soil layer, and then gradually increase. After the first harvest, these underground rhizomes sprouted seedlings (that is, two-sword seedlings) under the conditions of suitable moisture, grew to a certain stage and then grew new seed roots, which became the material for autumn sowing. There are also knots and internodes on the underground rhizomes, and fibrous roots grow on each node. Each node also has two opposite bud scales and latent buds. The horizontal distribution range can reach about 30cm, and the vertical depth of soil is small. The soil surface is within 10 cm. Experiments show that under natural conditions, the underground rhizomes have no dormant period, that is, under the conditions of suitable soil temperature and moisture, they can germinate and continue to grow at any time of the year and grow into plants. Underground rhizomes store water and nutrients. When the conditions are suitable, they can be germinated to grow into new plants when sown in the soil. This new plant can basically maintain the original shape and excellent characteristics of the variety. Therefore, it is The main part of production used for reproduction.
- Three leaves
- The leaves of mint are planted on stem nodes in opposite ways. Leaf shape, color, thickness, leaf surface conditions, leaf edge sawtooth density, etc. vary depending on the variety, growth period, and growth conditions. Generally speaking, the shapes of the leaves are oval, oval, etc .; the leaf colors are green, dark green and gray-green. The leaves of mint are both photosynthetic organs and the main place for storing essential oils. The distribution of oil glands (oil storage structure) on the leaves and epidermis, mostly in the lower epidermis. The number of oil glands per unit leaf area varies from species to species, and is related to the growth period, leaf age, and leaf position of the plant. The higher the density of oil glands on a certain leaf area, the higher the oil content. The content of essential oil in the leaves accounts for more than 98% of the total oil content of the whole plant, but for each leaf, its oil content is closely related to environmental conditions, cultivation techniques, varieties, the location of the leaves and the age of the leaves. . According to the measurement, the oil content in the leaves of the plants gradually increased from bottom to top. The level of oil production per unit area first depends on the number of leaves per unit area, the size of the leaf area, and the level of oil content (oil gland density). Therefore, in production practice, how to increase the number of leaves, reduce and delay the shedding of leaves, and prevent pests and diseases, has become an important link in increasing the yield of mint.
- Peppermint oil (5 photos)
- Fourth, branches
- Mint branches grow from latent buds in the axils of the main stems and leaves, which also bear opposite leaves. The branching capacity of different varieties is different. At the same time, the number of branches, branch length, branch nodes and so on are related to the field population density and management measures. Generally speaking, as the field population density increases, The number of branches decreases and the number of branches increases. Poor cultivation conditions, especially lack of fertilizer and water will also affect branching. Therefore, how to control the reasonable field density in cultivation according to the branch habit, soil fertility, fertilization level and other conditions is one of the important measures to achieve high yield.
- Five, flowers, fruits, seeds
- Mint flowers are smaller. The base of the calyx is united into a bell shape with five triangular teeth on the upper part; the corolla is light red, lilac or milky white, and the base of the four lobes is united; the normal flower has four stamens (some varieties have no stamens exposed or leave only traces) and grow On the wall of the corolla; one pistil, the top of the style lobed, sticking out of the corolla. Normal flowers (ie, both the pistil and stamens) have larger flowers, and the stamens are not exposed or leave only traces, and the flowers are smaller. Under natural growth, it blooms once a year. Under artificial cultivation conditions, it is generally harvested twice a year and flowered twice (except for some varieties and some regions), and the flowering period varies depending on the variety and region. The peak flowering period of a day often changes with climatic conditions. If the weather is fine, it is generally postponed from 6 to 9 in the morning on cloudy or rainy days, and it will not open in the afternoon. The self-pollination of mint is generally not strong, and it must be carried out by cross pollination by wind or insects. It usually takes about 10-15 days from budding to flowering, and it takes about 20 days for a flower to open to seed maturity. The level of seed setting varies with species and environmental conditions. A flower can bear up to four seeds and is stored in a bell-shaped calyx. The fruit is a small nut, oblong-ovate, the seed is very small, light brown, the weight of 10,000 grains is only about 1g, and the seeds per kilogram can reach about 5 million grains.
Chemical properties of peppermint oil
- Molecular formula of peppermint oil
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| Freezing point | 5 28 |
| Acid value | <2 |
Chinese herbal medicine properties of peppermint oil
Introduction of Peppermint Oil
- Manufacturing method
- This product is the fresh stems and leaves of mint from the Labiatae family, which are obtained by steam distillation, and the general yield is 0.3% -0.6%. Peppermint oil re-frozen, partly
- mint
- Character
- This product is light grass green liquid or light yellow clear liquid. When it is cold, it will solidify. It has a strong mint aroma and a cool bitter taste. Long-term storage, deep color gradient. This product can be mixed with ethanol, chloroform or ethanol. It has a pure scent of mint, spicy and cool, and has strong penetration. A large amount of colorless crystals precipitated at lower temperatures. When stored for a long time, the color gradient will be dark, and the quality gradient will be sticky. Soluble in water, can be mixed with alcohol, ether, chloroform, etc.
- Identify
- Take 1 drop of this product, add 3 to 5 drops of sulfuric acid and a small amount of vanillin crystals, it should be orange-red, and add 1 drop of water to turn purple. The relative density should be 0.888 0.908.
- Optical rotation: Take this product, place it in a 1dm tube, and measure -17 ° -24 ° according to law.
- Refractive index: should be 1.456 1.466
- an examination
- Color: Take this product and compare it with the yellow color standard solution No. 6 of the same volume, it must not be darker.
- Chemical composition and pharmacological action
- See "Mint" bar.
- Sexuality
- Chinese Medical Dictionary: "Xin, cold, non-toxic."
- Functional indication
- Aromatics, flavourings and repellents. Can be used on the skin or mucous membranes to produce a cooling sensation to reduce uncomfortable, main pain.
- Dosage
- Orally, 0.02 to 0.2 ml once, 0.06 to 0.6 ml a day.
- mint
- Store
- Shade, sealed and stored in a cool place.
Identification of Peppermint Oil
- Character identification This product is colorless or light yellow clear liquid. It has a special cool aroma, which has a spicy taste at the beginning and a cold after taste. Long-term storage, deep color gradient. This product can be mixed with ethanol, chloroform or ether. The relative density should be 0.888-0.908. Optical rotation: Take this product in a 1dm tube and measure it to -17 ° C to -24 ° C according to law. The refractive index should be 1.456-1.466.
- Check the color of this product and compare it with the same volume of the yellow standard 6 colorimetric liquid, it must not be darker.
Chemical composition of peppermint oil
- Fresh mint leaves contain 1% -1.46% oil. The main ingredient in the oil is menthol, with a content of 62.3% -87.2%.
- mint
Traditional Chinese medicine heritage of peppermint oil
Folklore of Peppermint Oil
- It is said that the original name of mint was from Greek mythology. Hades fell in love with the beautiful elf Menthe, the wife of Pluto
- mint
Pharmacological effects of peppermint oil
- 1. It is used for wind-heat and cold. This product is used for evacuation, cooling for clearing heat, and cooling lightly, and is commonly used for evacuation of wind-heat. Therefore, it can be used to treat wind-heat colds or fever. The evil is in the health, headache, fever, and mild cold. Equipped with Yinhua, Forsythia, Burdock, Nepeta, such as Yinqiaosan.
- mint
- 3. It is used for impervious measles and itching of rubella. The quality is light and scattered, with the functions of evacuation of wind-heat, detoxification and rash. It is used to treat wind and heat beams, and the measles is impermeable. It is often accompanied by cicada, nepeta, burdock, and comfrey. Itching can be used in the same way as Sophora flavescens, white fresh skin, and windproof.
- 4. For liver stagnation and qi stagnation, chest tightness and pain. This product is incorporated into the liver meridian, which can relieve liver stagnation and depression, and is often used with Chaihu, Baiji, Angelica and other stagnation and regulating qi and menstruation products to treat liver stagnation and qi stagnation, chest pain and dysmenorrhea, irregular menstruation, such as Xiaoyao San.
- 5. In addition, this product is aromatic and filthy, and can also be used to treat the symptoms of summer, wet, and turbid air, which is caused by bloating, abdominal pain, vomiting and diarrhea. It is often used with Huoxiang, Peilan, and white lentils.
Various discussions of peppermint oil
- 1. "Chongqing Tang Essay": suffering from wind-heat headache, gingival pain, scratching the affected area.
- 2. "Chinese Medical Dictionary" clearing away the heat. Treatment of head wind, red eyes, sore throat. Toothache, windy skin.
- 3. "Pharmacology of Chinese Medicine" headache, seasickness, nausea, flatulence, etc., coated or taken orally.
- 4. "Traditional Chinese Medicine Formal Experience Identification Method" for the treatment of hernia and chancre.
Artificial cultivation of peppermint oil
- Mint was born on the edge of a river ditch or in a mountainous wetland, and is now mostly planted by medicinal farmers in the area. Home potted mint is also extremely easy. Can be mined from March to April,
- mint
- There are many varieties of mint, but no matter which one, their common characteristics are strong adaptability, cold resistance and good planting, which is very suitable for novice cultivation. Mint likes the bright light but not the direct sunlight, and it needs to be rich in moisture. Therefore, watering is best performed when the soil is not completely dry. Peppermint grows very fast and can be picked at any time. Tea and vegetables are a good choice. In a word of vanilla researcher You Cixiong, don't be afraid to pick off the herbs. The more herbs some herbs are picked, the more lush the plants will be. Mint is one of them.
- Peppermint is very suitable as an entry plant for vanilla planting. Most peppermints can be propagated by branching or cuttings. In the growing season (preferably spring to summer), the stems are used to multiply the stems to propagate and it is very easy to get roots. Mint likes warm, humid, sunny and rainy environments. The rhizome can germinate at 5-6 ° C, and its optimum growth temperature is 20-30 ° C. Have strong cold resistance. The soil for cultivating mint is preferably loose and fertile, noisy soil with good drainage. Water has a greater impact on the growth and development of mint, and plants require more water in the early and middle stages of growth. The flowering stage requires sunny and dry weather, and requires less moisture.