Eriobotrya japonica
What's the taxonomical classification of Eriobotrya japonica?
Eriobotrya japonica belongs to the kingdom Plantae and is classified within the phylum Streptophyta. As a member of the class Equisetopsida and the subclass Magnoliidae, it falls under the order Rosales. Further taxonomic classification places it in the family Rosaceae, specifically within the genus Eriobotrya, and it is identified as the species japonica.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Rosales |
| Family | Rosaceae |
| Genus | Eriobotrya |
| Species | japonica |
What are the morphological characteristics of this plant?
Eriobotrya japonica has large, evergreen, lanceolate leaves that measure up to 30 centimeters in length and possess a thick, leathery texture with a distinctively serrated margin. The upper leaf surfaces are typically a deep, glossy green, while the undersides are covered in a dense, felt-like layer of fine white hairs. The plant develops a sturdy, upright growth habit with woody stems that eventually form a substantial canopy. During the flowering season, small, white, fragrant blossoms emerge from clusters on short stalks. These flowers eventually give rise to oval, yellowish-orange fruits that contain several hard seeds.
What is the geographical distribution of this plant?
This plant is native to East Asia, specifically spanning across Japan, Korea, China, and Taiwan. It thrives in temperate climates throughout these mountainous and forested regions. Its range extends from the southern islands of Japan up through the Korean peninsula into central China. In these habitats, it is often found in well-drained soils within mixed deciduous or evergreen forests. The species is also frequently documented in cultivated gardens across various temperate zones worldwide.
How is this plant cultivated?
This plant Eriobotrya japonica requires well-drained, loamy soil and a subtropical to warm temperate climate with mild winters to thrive.
It prefers full sun exposure to maximize fruit production and growth rates. Regular watering is essential during the establishment phase and throughout dry summer months to prevent stress. Mulching around the base helps retain moisture and regulates soil temperature for the extensive root system.
Once mature, the tree is relatively hardy and can tolerate moderate wind if given sufficient space.
What parts of this plant are used medicinally?
This plant Eriobotrya japonica provides medicinal value through its folium, flower, fruit, root, and seed. The leaves are frequently used in decoctions to treat respiratory ailments such as coughs and asthma. Flowers can be processed to assist with digestive issues or used in calming teas. The fruit is consumed for its high vitamin content to support general health and immunity. Additionally, the root and seeds are utilized in traditional practices to address various inflammatory conditions.
According to a study published by "Biochemical and biophysical research communications", Eriobotryae Folium of the plant Eriobotrya japonica was identified among 267 tested medicinal plant extracts. This specific part of the plant showed potent inhibition of AAnaT activity. The study focused on screening modulator of AAnaT activity from water extracts. The findings suggest that these extracts could potentially be used to treat patients with circadian rhythm disorders.
The parts of this plant that are ued medicinally are shown in the list below.
- folium
- flower
- fruit
- root
- seed
What traditional systems uses this plant?
This plant, Eriobotrya japonica, has been utilized in various traditional healing practices to treat respiratory ailments and digestive issues. In Native American herbal medicine, certain indigenous groups utilized similar loquat-related botanical properties to manage coughs and inflammation. Beyond North America, practitioners in Traditional Chinese Medicine have historically used the leaves and fruit to soothe the lungs and aid digestion. The bark and seeds have also been documented in historical folk remedies for their supposed astringent qualities. These diverse applications highlight the plant's long-standing importance in global ethnobotanical history.
According to a study published by "Journal of medicinally active plants", Eriobotrya japonica is one of the traditional medicinal plants used in Central America. One sample of E. japonica showed selective antiviral activity with a TI value of 18.7. An ethanolic extract of E. japonica also showed significant inhibition of E. coli and S. epidermidis with a p value of less than 0.001. These findings regarding the plant warrant further investigation of its antimicrobial and antioxidant properties.
The hystorical systems that uses this plant are shown in the list below.
- Native American Herbal Medicine
What are the pharmacological activities of Eriobotrya japonica?
This plant has demonstrated significant pharmacological potential through its anti-inflammatory, anti-oxidant, anti-diabetic, anti-tumor, and antimicrobial activities. Research indicates that its bioactive compounds work to neutralize free radicals and reduce oxidative stress within cellular environments. These chemical properties also help regulate blood glucose levels and suppress the inflammatory responses associated with various chronic conditions. Furthermore, specific extracts from the plant exhibit the ability to inhibit the growth of pathogenic microbes and impede the progression of malignant tumor cells. Such diverse biological functions suggest that Eriobotrya japonica serves as a valuable source for developing new therapeutic agents.
According to a study published by "Nutrients", the triterpene acids (TAs) found in Eriobotrya japonica leaves exhibit notable anti-inflammatory activity. In a study involving male C57BL/6 mice challenged with cigarette smoking for 12 weeks, TAs were administered at dosages of 50 and 100 mg/kg for 6 weeks. This treatment suppressed lung histological changes and diminished the generation of pro-inflammatory cytokines, specifically interleukin 1β (IL-1β), IL-2, IL-6, and tumor necrosis factor α (TNF-α). The TAs significantly inhibited malondialdehyde (MDA) levels and increased superoxide dismutase (SOD) activity. Furthermore, the TAs increased the phosphorylation of AMPK and Nrf2 expression levels while inhibiting the phosphorylation of NFκB and iNOS expression.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- anti-oxidant
- anti-diabetic
- anti-tumor activity
- antimicrobial
What medicinal compounds this plant contains?
This plant contains the medicinal compounds eriojaposide A, eriojaposide B, ursolic acid, oleanolic acid, and tormentic acid. These specific triterpenoids and glycosides are responsible for much of the biological activity found within the species. Researchers often study these substances to understand their potential anti-inflammatory and antioxidant properties. The presence of these diverse chemical constituents contributes to the plant's traditional uses in various herbal remedies. Such phytochemical profiles are essential for evaluating the therapeutic value of Eriobotrys japonica.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", ursolic acid is mostly extracted from loquat leaves, which is the plant Eriobotrya japonica. The yield of ursolic acid is positively correlated with the yield of its main precursor, α-amyrin. Currently, the plant extraction method for these compounds is characterized by a low yield and high cost. The study focuses on the synthesis of these triterpene backbone products.
The primary medicinal compounds of this plant are shown in the list below.
- eriojaposide A
- eriojaposide B
- ursolic acid
- oleanolic acid
- tormentic acid
What health conditions is this plant used for?
This plant is used for managing diabetes mellitus, asthma, arthritis, liver disorders, and various skin diseases. Its therapeutic properties are often utilized in traditional medicine to help regulate blood sugar levels in patients with diabetic conditions. The plant also contains compounds that may alleviate respiratory distress associated with asthma and reduce inflammation caused by arthritis. Furthermore, it serves as a natural remedy to support liver function and promote healing for different skin diseases. These diverse applications demonstrate the significant medicinal potential of Eriobotrya japonica in treating multiple systemic issues.
According to a study published by "Heliyon", Eriobotrya japonica is investigated for its potential as an anti-diabetic agent to manage Diabetes Mellitus. The plant's extracts were evaluated for alpha-amylase inhibition, with the hexane extract showing a 24% inhibitory activity at 1 ug/ml. This mild inhibitory activity is noted as being recommended over conventional therapy that maximally inhibits the enzyme. Additionally, the methanol extract demonstrated a high DPPH free radical scavenging activity of 87% and a low IC50 of 0.5336. These findings support the use of the plant at higher concentrations for managing the disease.
The main health conditions this plant is used for are shown in the list below.
- Diabetes Mellitus
- diabetes mellitus
- type 2 diabetes
- glucose intolerance
- hyperglycemia
What are the herbal preparations of this plant?
This plant is Eriobotrya japonica, which is primarily used in medicinal preparations known as Eriobotryae Folium to treat respiratory ailments. Practitioners often utilize a 70% EtOH extract to concentrate the plant's active compounds for more potent therapeutic effects. For milder treatments, an infusion allows for the gentle extraction of soothing properties through hot water. The leaves can also be processed into a fine powder for direct administration or specific topical uses. Additionally, fermented tea provides a unique way to consume the botanical components while potentially enhancing certain chemical profiles.
According to a study published by "BMC biotechnology", the dried leaves of Eriobotrya japonica are used to create the commonly used crude drug Eriobotryae Folium, also known as Pipaye or PPY. Researchers used the genome skimming technique to successfully recover cpDNA sequences and rDNA sequences from this crude drug. Bioinformatics analysis demonstrated a high overall consistency between the cpDNA obtained from the PPY crude drugs and fresh samples. While ITS and ITS2 sequences provided limited resolution for phylogenetic relationships, the cpDNA proved more effective for distinguishing the plant from close relatives. This study suggests that genome skimming can effectively retrieve cpDNA from crude drugs like PPY for identification purposes.
The main herbal preparations of this plant are shown in the list below.
- Eriobotryae Folium
- 70% EtOH extract
- infusion
- powder
- fermented tea
What side effects this plant can have?
This plant can provide anti-diabetic, anti-inflammatory, anti-tussive, and expectorant medicinal benefits to the human body. Its chemical properties allow it to function effectively as an anti-tussive and expectorant to help manage respiratory issues. Furthermore, the plant possesses significant anti-inflammatory qualities that can reduce swelling and irritation. Research also indicates that it may assist in managing blood sugar by a decreased plasma insulin level. These diverse therapeutic actions make the species a subject of interest in traditional and modern medicine.
According to a study published by "Die Pharmazie", Folium Eriobotryae has been utilized as a medicinal plant known for anti-inflammatory, anti-tussive, expectorant, and anti-diabetic physiological actions. A 70% ethanol extract of Folium Eriobotryae exerted a significant hypoglycemic effect in alloan-diabetic mice. The study isolated euscaphic acid from the plant and found that it significantly lowered plasma glucose levels in normoglycemic mice compared to those treated with a 0.5% CMC-Na solution. Furthermore, an oral dosage of 50 mg/kg of euscaphic acid exerted a significant (P < 0.05) hypoglycemic effect in alloan-diabetic mice. This research confirms that euscaphic acid is one of the active hypoglycemic constituents found within Folium Eriobotryae.
The main side effects this plant can have are shown in the list below.
- anti-diabetic
- anti-inflammatory
- anti-tussive
- decreased plasma insulin level
- expectorant
What herbs are paired with Eriobotrya japonica?
This plant Eriobotrya japonica pairs most effectively with medicinal herbs such as Glycyrrhiza glabra, Panax ginseng, and various species of Zingiber to balance its warming properties.
The sweet, astringent qualities of the loquat fruit complement the earthy tones of ginseng in traditional decoctions. Adding licorice root helps to harmonize the diverse chemical constituents within a herbal formula, smoothing the overall flavor profile. Ginger can also be integrated to enhance the warming effects of the loquat during preparations for respiratory health.
These specific combinations are frequently utilized in East Asian herbalism to address various ailments.