Citrus reticulata
What's the taxonomical classification of Citrus reticulata?
Citrus retiiculata belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Moving through its hierarchical structure, it is placed in the class Equisetopsida and the subclass Magnoliidae. Within the order Sapindales, it is further categorized under the family Rutaceae. Finally, it is identified by its genus, Citrus, and its specific species name, reticulata.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Sapindales |
| Family | Rutaceae |
| Genus | Citrus |
| Species | reticulata |
What are the morphological characteristics of this plant?
Citrus reticulaata has an evergreen growth habit characterized by small, dark green, oval-shaped leaves with slightly serrated margins and a waxy cuticle. The plant features a woody structure with spreading branches that often possess small, sharp spines at the nodes. Its flowers are fragrant, white, and pentamerous, emerging from the axils of the leaves. The fruit develops into a globose orange berry with a thick, pitted rind containing essential oil glands. Within the fruit, the pulp is divided into juice-filled segments containing numerous small seeds.
What is the geographical distribution of this plant?
This plant is native to the subtropical and tropical regions of South China, Southeast Asia, and parts of Northeast India. While its ancestral origins are confined to these specific Asian territories, human cultivation has facilitated its spread across the globe. It is now widely grown in many warm-temperate and tropical climates, including the Mediterranean basin, the United States, and South America. Commercial production is particularly concentrated in countries with favorable humidity and frost-free environments. This widespread distribution is primarily driven by its economic importance as a source of fresh fruit and juice.
What parts of this plant are used medicinally?
Citrus reticulaata contains medicinal properties found primarily in its fruit peel, juice, pulp, leaves, and seeds. The essential oils extracted from the rind are frequently utilized in aromatherapy and topical applications to soothe skin irritations. Consuming the juice and pulp provides a concentrated source of vitamin C, which supports immune function and helps combat oxidative stress. Additionally, the leaves are sometimes brewed into teas to aid in digestion or to promote relaxation. Each part of the plant offers unique bioactive compounds that contribute to its traditional therapeutic uses.
What are the pharmacological activities of Citrus reticulata?
This plant has antioxidant, anti-inflammatory, antibacterial, antimicrobial, and antiviral pharmacological activities that contribute to its diverse therapeutic potential. The rich concentration of flavonoids and essential oils allows it to neutralize free radicals and reduce systemic oxidative stress. These bioactive compounds also function to suppress inflammatory responses by inhibiting specific biochemical pathways in the body. Additionally, the plant exhibits strong antimicrobial and antibacterial properties that can impede the growth of various pathogenic bacteria. Its antiviral capabilities further extend its utility by providing a natural defense against certain viral infections.
As discussed in a study, the flavonoid multi-components (FMCs) prepared from Citrus reticulata ZhangTouHong (ZTTH) showed a 4.62-fold increased total flavonoid content. These FMCs were identified as a total of 48 flavonoid compounds, which included 3 potential new compounds. The anti-aging activity tests demonstrated that these components have excellent antioxidant activity and anti-aging capacity. Specifically, the FMCs extended the lifespan of nematodes by 21.65%. Additionally, the treatment increased the survival time of oxidative stress in nematodes by 35.71%.
What medicinal compounds this plant contains?
This plant contains the medicinal flavonoids hesperidin, nobiletin, hesperetin, eriocitrin, and narirutin. These bioactive compounds contribute to the plant's diverse pharmacological profile, including antioxidant and anti-inflammatory properties. Nobiletin and hesperetin are particularly noted for their potential roles in regulating metabolic processes and protecting neurological health. Eriocitrin and narirutin further enhance the chemical complexity of the plant's medicinal value. Together, these specific molecules work to provide various therapeutic benefits through their interaction with biological pathways.
As discussed in a study, the supercritical fluid extract of Guangchenpi, which consists of the medicinal pericarp of Citrus reticulata, contains five active polymethoxylated flavones labeled 1-5. Among these, tangeretin (2) and nobiletin (3) are identified as two major polymethoxylated flavones that show an anti-RSV effect comparable to the positive control ribavirin. The study demonstrated that tangeretin dose-dependently inhibits RSV-induced plaque formation on HEp-2 cells. This specific compound affects the intracellular replication of RSV and inhibits its entry into the HEp-2 cells. Furthermore, tangeretin was found to downregulate the expression of the RSV phosphoprotein (P protein).
What health problems is this plant used for?
This plant is used for treating inflammation, diabetes, cough, oxidative stress, and gastritis through its diverse bioactive compounds. The antioxidants found in the fruit help the body combat oxidative stress by neutralizing harmful free radicals. Its medicinal properties are also utilized to soothe a persistent cough and reduce internal inflammation throughout the body. Furthermore, the plant's components assist in managing blood sugar levels for those with diabetes. It can even provide relief for digestive issues like gastritis by protecting the stomach lining.
What are the herbal preparations of this plant?
This plant can be prepared as an essential oil extracted from the peel, a tincture made with alcohol, an extract using solvents, an infusion of the leaves, or a decoction of the fruit skins. The aromatic essential oil is frequently used in aromatherapy and topical applications for its invigorating scent. Herbalists often create a tincture or a concentrated extract to stabilize the plant's bioactive compounds for long-term medicinal use. A gentle infusion of the leaves provides a soothing tea rich in calming properties. For tougher parts like the rind, a decoction is prepared by simmering the material to release its full potency.
The main herbal preparations of this plant are shown in the list below.
- Essential oil
- Tincture
- Extract
- Infusion
- Decoction
What side effects this plant can have?
This plant can cause acid reflux, heartburn, allergic reaction, nausea, diarrhea, and stomach cramps in some individuals. Consuming the fruit may trigger digestive distress such as nausea, diarrhea, or painful stomach cramps. High acidity levels within the fruit are frequently linked to the development of acid reflux and heartburn. Some people may also experience an allergic reaction after coming into contact with its components. These symptoms vary depending on an individual's sensitivity to the citrus compounds.
The main side effects this plant can have are shown in the list below.
- Acid reflux
- Heartburn
- Allergic reaction
- Nausea
- Diarrhea
- Stomach cramps