Citrus reticulata

Citrus reticulata · Accepted scientific name

Scientific literature: Very Sparse (4 studies) · ★☆☆☆☆

Citrus reticulata, commonly known as the mandarin orange, is a versatile plant species utilized extensively for its medicinal properties derived from its fruit, seeds, and roots. Various preparations, including essential oils and traditional Chenpi (Citri Reticulatae Pericarpium), contain potent bioactive compounds such as D-Limonene, Citral, Carvacrol, and Deacetylnomilin. These chemical constituents provide significant therapeutic activities, most notably antibacterial, antioxidant, anticancer, and (-)-chronotropic effects. Scientific research suggests these components can target complex conditions such as E. coli infections, malaria, and Alzheimer's disease by interacting with acetylcholinesterase. Consequently, this plant remains a vital subject of study for developing natural interventions against diverse pathological challenges.

Quick facts
Synonyms
Citrus Daoxianensis · Citrus Reticulata Var. Austera · 1 more
Common names
Not available
Family
Rutaceae
Distribution
Not available
Plant Parts
Seed · Fruit

Classification

Synonyms

Citrus reticulata is a complex species characterized by several scientific synonyms that reflect its diverse botanical classifications. For instance, it is often identified in certain academic contexts as Citrus daoxianensis. The plant is also recognized under the specific variety name Citrus reticulata var. austera. Furthermore, taxonomic studies frequently link it to the subspecies Citrus × nobilis subf. reticulata. Understanding these overlapping names is essential for accurate identification within the citrus family.

Sources: The World Checklist of Vascular Plants (WCVP)

Taxonomy

Citrus reticulata belongs to the vast kingdom Plantae, representing a diverse branch of the living world. Within this kingdom, the species is classified under the class Equisetopsida. It further falls into the order Sapindales, which links it to various other significant flowering plants. The species is a prominent member of the genus Citrus, known globally for its aromatic qualities. Finally, it is categorized under the family Rutaceae, defining its specific botanical characteristics and evolutionary lineage.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Sapindales
Family Rutaceae
Genus Citrus

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

Geographic Regions

Citrus reticulata is widely distributed across various regions within the Asia-temperate zone. This species thrives particularly well throughout the diverse landscapes of China. Within this vast territory, it maintains a particularly strong presence in Southeast China. These specific environmental conditions support its natural growth and widespread availability. Understanding these geographic relationships is essential for studying the plant's native habitat.

Sources: The World Checklist of Vascular Plants (WCVP)

Identification

Biological Activities

Citrus reticulata, commonly known as the tangerine, possesses a diverse range of pharmacological properties that highlight its significant medicinal potential. Research indicates that its essential oils exhibit strong antioxidant activity, which is supported by high phenolic and flavonoid content. Furthermore, the plant demonstrates effective antimicrobial and antibacterial capabilities, particularly against pathogens such as E. coli and Staphylococcus aureus. Beyond these protective functions, studies have also identified promising anticancer activities, specifically regarding the induction of apoptosis in certain tumor cells. Collectively, these findings suggest that repurposing the fruit's peels could transform agricultural waste into a valuable resource for therapeutic use.

Compounds

Citrus reticulata is a versatile plant species characterized by a diverse array of bioactive chemical compounds. Its peels are a rich source of polymethoxylated flavones, specifically containing nobiletin, which has demonstrated significant anti-leukemia and anti-dementia potential. The essential oils derived from this fruit also contain carvacrol and citral, components that contribute to antimicrobial properties but may pose allergenic risks to sensitive individuals. Furthermore, the oil is notably high in D-limonene, a major constituent that supports antibacterial and wound-healing activities. Beyond the peels, the seeds of the plant yield important limonoids such as deacetylnomilin, highlighting the medicinal complexity found throughout the entire fruit.

Conditions

Citrus reticulata exhibits significant antibacterial properties by effectively treating E. coli and B. cereus. The plant also functions as an antioxidant that can treat hydroxyl radicals (OH) through the elimination action of its polysaccharides. Furthermore, its extracts show nutraceutical potential to treat Alzheimer disease by inhibiting acetylcholinesterase and butyryl-cholinesterase. Finally, the essential oil of this species helps treat CD36 expression by decreasing lipid storage in foam cells.

Preparations

Citrus reticulata is prepared as essential oils, which are utilized for their antimicrobial, antioxidant, and antibiofilm properties. The plant is also processed into a dried mature peel used extensively in medicinal applications. This material is commonly known as Chenpi or Citri Reticulatae Pericarpium (CRP) in Chinese traditional medicine. As Chenpi (Citri Reticulatae Pericarpium), it serves as a health-care food and dietary supplement with various pharmacological effects. Ultimately, the preparation of CRP provides essential active ingredients like polymethoxy flavones for treating different diseases.

Parts used

Citrus reticulata is a versatile plant species that contains several biologically active components, including its fruit, seeds, and roots. Research into the fruit peel has revealed essential oils rich in limonene that demonstrate significant potential for controlling fungal growth. The seeds of the mandarin orange serve as a rich source of bioactive phytochemicals and limonoids, which may offer skin-health benefits and marginal antimalarial activity. Additionally, extracts derived from the root have shown efficacy in treating Schistosoma mansoni infections by improving liver enzyme activities in experimental models. Together, these various parts highlight the diverse pharmacological potential of this citrus species.