Eriobotrya japonica
Eriobotrya japonica · Accepted scientific name
Scientific literature: Very Sparse (15 studies) · ★☆☆☆☆
Eriobotrya japonica, commonly known as the loquat, is a versatile plant whose leaves, flowers, seeds, and fruits possess significant therapeutic potential. Various preparations, including 70% EtOH and MeOH extracts of the leaves and seeds, have demonstrated potent antioxidant, antibacterial, and estrogenic activities. These botanical resources are rich in bioactive chemicals such as chlorogenic acid, flavonoids, ursolic acid, and 2-alpha-hydroxyursolic acid. Research suggests that these compounds can effectively address medical conditions like diabetes mellitus and inflammation by modulating factors such as 11beta-HSD1. Furthermore, the plant's chemical profile plays a crucial role in helping the organism manage various forms of abiotic stress.
- Synonyms
- Mespilus Japonica · Eriobotrya Japonica F. Variegata · 4 more
- Common names
- Not available
- Family
- Rosaceae
- Distribution
- Not available
- Plant Parts
- Leaf · Flower
Classification
Common Names
Eriobotrya japonica is a versatile fruit-bearing plant known by a wide variety of regional names. In many parts of the world, it is most frequently identified as the Chinese medlar or the Japanese medlar. Some enthusiasts also refer to the species as the Japanese plum, highlighting its unique fruit characteristics. In different linguistic contexts, you may encounter it called the Ameixa-amarela or even the Bibacier. These diverse common names reflect the plant's broad global presence and cultural significance.
Sources: Catalogue of Life (COL)
Synonyms
Eriobotrya japonica is a plant species that is known by several different scientific synonyms within botanical literature. Taxonomic discussions often link it to names such as Crataegus bibas and Pyrus bibas. Additionally, it has been identified under the synonyms Mespilus japonica and Photinia japonica in various contexts. Some variations are also categorized specifically as Eriobotrya japonica f. variegata to denote distinct forms. Understanding these diverse nomenclature relationships is essential for accurate botanical identification.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Eriobotrya japonica is a remarkable species that belongs to the kingdom Plantae. Within this vast kingdom, it is classified under the class Equisetopsida. The plant is further organized into the order Rosales, showcasing its botanical lineage. It specifically falls under the family Rosaceae, which connects it to many other well-known flowering plants. Finally, its unique characteristics are defined by its placement within the genus Eriobotrya.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Rosales |
| Family | Rosaceae |
| Genus | Eriobotrya |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Eriobotrya japonica maintains a notable presence across several key regions within the African continent and the surrounding Atlantic territories. Its distribution extends through the Macaronesian islands, specifically encompassing the Azores, the Canary Islands, and Madeira. Furthermore, the species can be found thriving in the archipelago of Cape Verde. The plant's reach even stretches into more remote areas of the Middle Atlantic Ocean, including Ascension. Together, these locations highlight the diverse geographical footprint this species holds within these subtropical maritime environments.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Biological Activities
Eriobotrya japonica has demonstrated a diverse range of biological activities that highlight its significant medicinal potential. Research indicates that the plant possesses strong antioxidant properties, largely driven by its rich content of flavonoids and chlorogenic acid. Furthermore, studies have confirmed its antimicrobial and antibacterial capabilities, specifically showing the ability to inhibit the growth of bacteria such as Escherichia coli and Staphylococcus epidermidis. The plant also exhibits estrogenic activity, as evidenced by its performance in recombinant yeast systems. Finally, Eriobotrya japonica shows promise in metabolic health through its antidiabetic effects, specifically by inhibiting the 11beta-HSD1 enzyme.
Compounds
Eriobotrya japonica is a versatile medicinal plant that contains a diverse array of bioactive chemical constituents. Research into its leaves has identified the presence of antioxidant chlorogenic acid, alongside ursolic acid and 2-alpha-hydroxyursolic acid. The flowers of the plant have also been shown to yield various triterpenoids, including ursolic acid derivatives. Furthermore, studies on its extracts have isolated 3-O-trans-caffeoyltormentic acid, which contributes to its complex chemical profile. Finally, the seeds of the plant are a known source of the sterol beta-sitosterol, which may play a role in improving liver function.
Conditions
Eriobotrya japonica serves as a traditional treatment for diabetes mellitus through its ability to stimulate insulin secretion and exert hypoglycemic effects. The plant demonstrates significant anti-inflammatory properties by reducing leukocyte migration and suppressing hepatic inflammation induced by hyperglycemia. Its extracts are effective in inhibiting 11beta-HSD1 activity, which helps manage metabolic risk factors related to glucocorticoids. Furthermore, Eriobotrya japonica ameliorates Angiotensin-II induced cardiac hypertrophy in both cardiomyoblast cells and hypertensive rats. Finally, the plant assists in managing blood glucose level rises, specifically through the maltase inhibition provided by fermented tea products.
Preparations
Eriobotrya japonica is prepared as various extracts to investigate its diverse medicinal properties. Researchers utilize leaf extracts, including infusions and water-soluble portions, to study anti-inflammatory, antihyperalgesic, and cytotoxic activities. The seeds of the plant are prepared as 70% EtOH and MeOH extracts to evaluate their ability to improve liver function and inhibit fibrosis. Additionally, the plant is prepared as 70% EtOH and MeOH extracts specifically to identify constituents like linolenic acid and beta-sitosterol. Finally, the CHCl3 extract of Eriobotrya japonica is used to isolate triterpene esters for the study of antiviral properties against the rhinovirus.
Parts used
Eriobotrya japonica is a versatile plant highly valued for both its nutritious fruit and its significant medicinal properties. Scientific research has focused extensively on its leaves, which contain bioactive compounds capable of providing anti-inflammatory and anti-diabetic benefits. The flowers of the plant are also of great interest, particularly for the isolation of triterpenoidal saponins and total flavonoids. Furthermore, the seeds have demonstrated promising hypoglycemic and liver-improving effects in various studies. Together, these diverse components highlight the complex pharmacological potential found throughout the entire loquat plant.