Detailed introduction about the extraction source Usnea
English name: Chinese Usnea
Latin name: Usnea diffracta Vain.
Distribution area: Northeast, Inner Mongolia, Shaanxi, Gansu, Zhejiang, Jiangxi, Fujian, Taiwan
Growth habit: both Usnea longus and Usnea knots grow on trunks and branches
Taste: bitter sweet, neutral
Morphological characteristics
The surface of Usnea is light green to light yellow green, the diameter of the base of the branch is about 3mm, the diameter of the main branch is 3-4mm, the secondary branches are neat or irregular, and there are many bifurcated branches, the branches are cylindrical, and a few ends are slightly flat or angular. Branches with annular fissures, like spines.
The lichen body is large, about 20-40cm long, sometimes up to 1m long, hanging filamentously, the main branch and primary branch are very short, the secondary branch is soft and slender, densely grown vertical branchlets on it, no tertiary branch . The surface is gray-green, grass-green, and the old branches are gray-gray yellow. The main branch has a cortex and the secondary branches lack a cortex.
The lichen body is branched, pendant, 15-50cm long. Light green to light yellow green. Branch base diameter is about 3mm, main branch is 3-4mm thick, secondary branches are neat or irregular and often bifurcated, branches are cylindrical, a few ends are slightly flattened or angular. Branches with annular fissures, like spines.
Usnea generally blooms in early summer, and it can also bloom in warm winter at home
growth environment
Usnea likes a cool and humid place, and it is best to choose fertile and loose soil, preferably mountainous sandy soil with more humus. It grows best in the shade of valleys in hilly or low mountain areas.
Usnea is born on the old branches of deep mountains or on the rocks of high mountains, forming a hanging filament. Especially born in damp forests, epiphytic on coniferous trees. In a dark and humid environment, hibiscus grows on the branches of spruce and fir. Born in damp forests, epiphytic on coniferous trees, distributed all over the country
Main place of origin
Usnea is native to the southern United States, central Argentina, and is widely distributed in Central and South America. It grows on trees and cactus trees at an altitude of 0-2400m. This kind of cold resistance is extremely strong, and artificial cultivation can be suspended in the air and let it grow downward.
Domestic distribution
Usnea longus: Distributed in Heilongjiang, Jilin, Inner Mongolia, Shaanxi, Gansu, Zhejiang, Fujian, Taiwan, Sichuan, Yunnan, Tibet and other places. the
Usnea: distributed in Northeast China, Shanxi, Inner Mongolia, Shaanxi, Gansu, Anhui, Zhejiang, Jiangxi, Fujian, Taiwan and other places
Indications
Liver clearing, phlegm resolving, hemostasis, detoxification. Treatment of headache, red eyes, cough with excessive phlegm, malaria, scrofula, leucorrhea, metrorrhagia, traumatic bleeding, carbuncle, venomous snake bite
More about usnic acid
CAS No.: 125-46-2
English name:USNICACID
Synonyms: usno;Usnic;USNEIN;USNIACIN;UNSICACID;USNIC ACID;Usnea acid;usninsaeure;
USNIC ACID;2-USNINIC ACID;
CBNumber: CB6237422
Molecular formula: C18H16O7
MOL File: 125-46-2.mol
main application
Usnic acid is a broad-spectrum antibiotic, which has a strong inhibitory effect on most Gram-positive bacteria. The concentration of 50μg/mL can completely inhibit the growth of bacteria, and it is used as a high-efficiency preservative in cosmetics. It has a selective inhibitory effect on Streptococcus, the main bacteria that cause oral diseases and dental caries. Usnic acid has curative effect on various skin diseases such as burns, infection, psoriasis and so on.
Medical application:
Clinically, it has certain curative effect against malaria. It has a certain effect on trauma, burns and skin diseases, cervix inflammation, cleft papilla, and prevention of perineal rupture. In addition, it can also be used as a raw material for the antibiotic "Pyramide".
Application in daily chemicals:
used for hemostasis, antibacterial, anti-inflammatory, wound healing, anti-caries, can also remove dental plaque, enhance human immunity, and has a good effect on oral ulcers and vaginitis. Usually used as an additive in toothpaste and cosmetics
Application in cosmetics:
Usnic acid is a cosmetic additive approved by CTFA. It is a broad-spectrum antibiotic and has a strong inhibitory effect on most Gram-positive bacteria. It can completely inhibit the growth of bacteria at a concentration of 50 μg.ml-1. It is used in cosmetics as Highly effective preservative. It has a selective inhibitory effect on Streptococcus, the main bacteria that cause oral diseases and dental caries. Usnic acid is effective for many skin diseases such as burns, infections, psoriasis, etc.
Adverse reactions:
Adverse reactions The more significant side effects of usnic acid are mainly allergic reactions caused by contact dermatitis. Early studies found that the people who had allergic reactions were mainly factory workers, lichen pickers or gardeners who came into contact with forest wood, lichen plants, etc.; Chemicalbook lichenic acid mixture, d-usnic acid 4 patients suffering from atopic dermatitis carried out patch test, the results showed that 4 patients were all positive, suggesting that perfume containing usnic acid and other lichen plant extracts, Cosmetics, deodorants, preservatives, etc. may cause contact dermatitis, but usnic acid does not cause photosensitization.
storage method:
Generally, it is stored in cold storage between 0°C and 10°C (in principle, it is best stored in a cool place below 15°C), but compared to product transportation, not all products are transported at the same temperature as the storage temperature, and the temperature for frozen storage is between 0°C and 10°C. below 0°C. Some products may temporarily heat up during transportation. Individual products have special requirements, and we will transport them refrigerated.
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