The Effects and Functions of Aspidistra elatior
In the street corners and alleys of southern cities, it is common to see clusters of tall and lush Aspidistra elatior. This Liliaceae plant not only has unique ornamental value but also carries the wisdom of traditional Chinese medicine and dietary culture. From pharmacopeia records to modern research, from the Dragon Boat Festival rice dumplings to urban green belts, let us unveil the mysterious veil of this multi-functional plant.
Analysis of Medicinal Value
New Discovery in Thousand-year Herbal Medicine
Aspidistra elatior (scientific name: Aspidistra elatior) rhizomes contain saponins, polysaccharides, and flavonoids active substances. Its ethanol extract has an inhibition rate of 82% against Staphylococcus aureus. A study in the "Journal of Ethnopharmacology" in 2019 confirmed that its analgesic effect is equivalent to 65% of aspirin and has anti-inflammatory properties. Traditional usage should note: the rhizome needs to be processed to remove its cold nature, fresh products should not be applied externally for more than 2 hours, and those with yin deficiency should use it cautiously.
New Application in Modern Preparation
A pharmaceutical company in Guangdong has developed an Aspidistra elatior antibacterial spray, which clinical trials show can increase the healing speed of epidermal trauma by 30%. Its rhizome extract is also used in the compounding of gynecological menstrual regulation capsules, but it is contraindicated in pregnant women and those with heavy menstrual bleeding.
Inheritance of Dietary Culture
Secrets of the粽 Leaf
Compared to the bamboo leaves, the leaves of Aspidistra elatior are broader (up to 50cm) and have 23% higher chlorophyll content. Its natural antibacterial property can extend the shelf life of rice dumplings at room temperature by 6 hours. The Li people in Hainan also use tender leaves to wrap mountain orchid rice, which produces a unique aroma after steaming.
New Nutritional Development
The leaves contain 17 amino acids, including 8 essential amino acids. The (T-W) Food Research Institute is trying to make it into a natural food coloring agent to replace synthetic pigments. The tender stems can be fermented to make health vinegar, with a total flavonoid content of 3.2mg/mL.
Extension of Ecological Value
Urban Greening Expert
In the green application of Xiamen City, Aspidistra elatior's shade tolerance (able to grow under 2000 lux of light) makes it an optimal plant for under viaducts. Its transpiration rate reaches 4.2mmol/(m²·s), which can effectively reduce the surrounding temperature by 2-3℃.
Actual Measurement of Air Purification
An experiment at the South China Botanical Garden showed that placing 5 pots of Aspidistra elatior in a 10㎡ space for 24 hours can remove 41% of formaldehyde and 37% of TVOCs. Its broad leaves can adsorb PM2.5 particles, and it is recommended to clean the leaf surface with a damp cloth once a month.
From the pharmacy to the dining table, from the courtyard to the laboratory, Aspidistra elatior is radiating new vitality. This plant, which is both traditional and modern, enlightens us: protecting the diversity of native species is to safeguard the future of sustainable development. The next time you encounter this lush green plant, you may have a deeper understanding and respect for it.