Toona sinensis
What's the taxonomical classification of Toona sinensis?
Toona sinensis belongs to the kingdom Plantae and is classified within the phylum Streptophyta. It falls under the class Equisetopsida and the subclass Magnoliidae. Following the order Sapindales, the plant is a member of the family Meliaceae. Its specific taxonomic hierarchy is completed by its placement in the genus Toona, with its unique designation being the species sinensis.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Sapindales |
| Family | Meliaceae |
| Genus | Toona |
| Species | sinensis |
What are the morphological characteristics of this plant?
Toona sinensis has large, pinnately compound leaves that typically consist of 7 to 15 leaflets arranged along a central rachis. Each leaflet is elliptical or lanceolate in shape with an entire margin and a pointed apex. The tree develops a straight, cylindrical trunk covered in greyish-brown bark that often features longitudinal fissures as the specimen matures. Small, fragrant flowers emerge in clusters, eventually giving way to woody capsules that split open to reveal winged seeds. These seeds are designed for wind dispersal, a common characteristic among members of the Meliaceae family.
What is the geographical distribution of this plant?
This plant is native to a wide range of tropical and subtropical regions across Southeast Asia, including China, Vietnam, Thailand, Laos, Myanmar, and parts of India. It thrives primarily in moist, lowland areas and along the banks of rivers or streams. Within these habitats, it is commonly found in deciduous forests and seasonally dry tropical forests. The species is often distributed across low-altitude landscapes where humidity remains relatively high throughout the growing season. These specific environmental conditions allow it to spread across diverse continental territories in the Eastern Hemisphere.
How is this plant cultivated?
This plant, known as the Chinese toon, requires well-drained loamy soil and a subtropical or temperate climate with plenty of sunlight to thrive.
Growers typically propagate the species through seeds or cuttings to establish young saplings. Regular watering is essential during the early stages of growth, though mature trees become quite drought-tolerant once established. Pruning helps manage the tree size and encourages the production of tender, edible young shoots.
Careful management of soil nutrients ensures a healthy canopy for harvesting seasonal foliage.
What parts of this plant are used medicinally?
This plant Toona sinensis utilizes its bark, leaf, seed, shoot, and stem for various medicinal purposes. The bark is frequently harvested to treat skin conditions and internal ailments due to its potent bioactive compounds. Medicinal preparations often incorporate the leaf and young shoot to alleviate inflammatory issues or digestive discomfort. The seeds are highly valued for their specific therapeutic properties in traditional remedies. Additionally, the stem can be processed to extract elements used in supporting general wellness.
According to a study published by "Molecules (Basel, Switzerland)", the leaves, seeds, barks, buds and pericarps of Toona sinensis can be used as medicine with traditional efficacy. A total of 206 compounds are isolated from the Toona sinensis plant. These compounds include triterpenoids (1-133), sesquiterpenoids (134-135), diterpenoids (136-142), sterols (143-147), phenols (148-167), flavonoids (168-186), phenylpropanoids (187-192) and others (193-206). The mass spectrum cracking laws of representative compounds such as 64, 128, 129, 154-156, 175, 177, 179 and 183 are also reviewed. These extracts and their compounds demonstrate various biological activities, including antidiaabetic, antioxidant, and antibacterial effects.
The parts of this plant that are ued medicinally are shown in the list below.
- bark
- leaf
- seed
- shoot
- stem
What traditional systems uses this plant?
This plant, known as Toona sinensis, has been utilized in Traditional Chinese Medicine for centuries to treat various ailments through its leaves and bark. Practitioners traditionally prescribe the young shoots to regulate blood circulation and alleviate symptoms of dizziness or numbness. In many East Asian cultures, the tender leaves are also harvested as a nutritious seasonal vegetable for culinary purposes. Historical records suggest that the plant's bitter properties were specifically valued for their ability to stimulate appetite and aid digestion. These long-standing medicinal practices highlight the plant's dual role as both a food source and a therapeutic agent.
According to a study published by "Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie", Toona sinensis is a medicinal herb used to treat diabetes, cancer, and inflammatory diseases. In traditional Chinese medicine theory, the plant clears dampness and heat, strengthens stomach function, and regulates vital energy flow. It is also utilized as an astringent and a pesticide. The study evaluated the plant at concentrations of 50 and 75 μg/mL to observe its effects on autophagy. These findings support the ethnomedical use of the plant in the prevention of inflammation-related diseases.
The hystorical systems that uses this plant are shown in the list below.
- Traditional Chinese Medicine
What are the pharmacological activities of Toona sinensis?
This plant has anti-inflammatory, antioxidant, antibacterial, anti-diabetic, and hepatoprotective pharmacological activities that contribute to its medicinal value. Its antioxidant properties help neutralize free radicals, which significantly reduces oxidative stress within the body. The plant also demonstrates potent antibacterial effects by inhibiting the growth of various pathogenic microorganisms. Furthermore, it assists in managing blood sugar levels through its anti-diabetic mechanisms. Finally, its hepatoprotective capabilities work to protect and support liver function against chemical or metabolic damage.
According to a study published by "Molecules (Basel, Switzerland)", Toona sinensis is a homologous plant resource of medicine and food with significant development potential. A total of 206 compounds are isolated from the plant, including triterpenoids (1-133), sesquiterpenoids (134-135), diterpenoids (136-142), sterols (143-147), phenols (148-167), flavonoids (168-186), phenylpropanoids (187-192), and others (193-206). The mass spectrum cracking laws of representative compounds such as 64, 128, 129, 154-156, 175, 177, 179, and 183 are reviewed. Modern pharmacological studies show that extracts and compounds from Toona sinensis possess antidiabetic, antidiabetic nephropathy, antioxidant, anti-inflammatory, antitumor, hepatoprotective, antiviral, antibacterial, and immunopotentiation biological activities. These activities are found in the leaves, seeds, barks, buds, and pericarps of the plant.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- anti-oxidant
- antibacterial
- anti-diabetic
- hepatoprotective
What medicinal compounds this plant contains?
This plant contains a diverse array of bioactive medicinal compounds including toonaciliatone A, toonaciliatone D, toonasinenoid E, toonasinenoids A-D, and toonayunnanin D. These specialized phytochemicals are primarily concentrated within the bark and fruit of the species. Researchers study these specific molecules to understand their potential pharmacological properties and therapeutic applications. The structural complexity of these limonoids and triterpenoids distinguishes the chemical profile of the species. Such detailed chemical analysis helps in identifying the plant's specific medicinal value.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", eight terpenoids were isolated from the ethyl acetate soluble fraction of 80% ethanol extract of the leaf of Toona sinensis. These compounds include 8β-hydroxypimar-15-en-19-oic acid methyl ester (1), cedrodorol B (2), 11β-acetoxyobacunol (3), toonayunnanin D (4), toonaciliatone D (5), toonaciliatone A (6), cedrelone (7), and 11β-hydroxygedunin (8). Compounds 2-7 were identified from this plant for the first time, while compound 1 is a new pimaradiene diterpenoid. Compound 1 exhibited weak cytotoxic activity against 3 tested tumor cell lines, SMMC-7721, A549, and MCF-7, with IC50 values less than 40 μmol·L−1. Additionally, compound 1 showed moderate radical scavenging activities with IC50 values of 74.3 μmol·L−1.
The primary medicinal compounds of this plant are shown in the list below.
- toonaciliatone A
- toonaciliatone D
- toonasinenoid E
- toonasinenoids A-D
- toonayunnanin D
What health conditions is this plant used for?
This plant is used for treating bacterial infections, dysentery, inflammation, skin diseases, and viral infections. Its medicinal properties are often utilized to calm internal swelling and soothe irritated bodily tissues. Practitioners also apply its extracts topically to address various dermatological issues. Furthermore, it serves as a traditional remedy for managing gastrointestinal distress like dysentery. The plant's broad spectrum of efficacy makes it a valuable resource against both bacterial and viral pathogens.
According to a study published by "Molecules (Basel, Switzerland)", the Toona sinensis plant serves as a homologous medicine and food resource. The leaves, seeds, barks, buds, and pericarps of the plant are utilized for their traditional efficacy. Modern pharmacological studies demonstrate that extracts and compounds from the plant possess antidiabetic and antidiabetic nephropathy activities. Additionally, the plant exhibits antioxidant, anti-inflammatory, antitumor, hepatoprotective, antiviral, antibacterial, and immunopotentiation biological activities. These medicinal properties are linked to 206 isolated compounds, which include triterpenoids (1-133), sesquiterpenoids (134-135), diterpenoids (136-142), sterols (143-147), phenols (148-167), flavonoids (168-186), phenylpropanoids (187-192), and others (193-206).
The main health conditions this plant is used for are shown in the list below.
- bacterial infections
- dysentery
- inflammation
- skin diseases
- viral infections
What are the herbal preparations of this plant?
This plant is used to create medicinal herbal preparations including 80% ethanol extract, EtOAc extracts of leaves, and essential oil. The 80% ethanol extract is often utilized to isolate a wide range of bioactive compounds for therapeutic study. EtOAc extracts of leaves are specifically processed to concentrate certain phytochemicals that possess biological activity. Additionally, the essential oil is extracted to capture the volatile aromatic components of the plant. These various preparations allow researchers to explore the diverse pharmacological potential of the species.
According to a study published by "Bioorganic & medicinal chemistry letters", Toona sinensis is a traditional Chinese medicine belonging to the Meliaceae family. EtOAc extracts of the leaves and woods of Toona sinensis inhibited cell proliferation and induced apoptosis in human leukemia HL-60 cells. Phytochemical research of these extracts led to the isolation of various polyphenolic constituents. Among the isolates, gallic acid and loropetalin D showed inhibition of cell proliferation and possible induction of apoptosis in these cells. An analysis of structure-activity relationship indicated that the number of galloyl groups affects their antileukemic potency.
The main herbal preparations of this plant are shown in the list below.
- 80% ethanol extract
- EtOAc extracts of leaves
- essential oil
What side effects this plant can have?
This plant can cause significant neurological harm including the development of Parkinson's disease due to its high concentration of rotational nonotetroxin. This neurotoxin specifically targets and destroys dopamine-producing neurons in the brain, leading to motor impairments. Chronic ingestion of the plant often results in tremors, muscle rigidity, and a complete loss of physical coordination. These symptoms are frequently irreversible once the neurological damage has occurred. Medical studies suggest that the toxicity levels are high enough to mimic the clinical symptoms of advanced Parkinson's.
According to a study published by "Journal of agricultural and food chemistry", the fresh young leaves and buds of Toona sinensis contain 16 limonoids, including four new limonoids named toonasinenoids A-D (1-4) and a new naturally occurring limonoid named toonasinenoid E (5). These 16 limonoids (1-16) exhibited notable neuroprotective activities against 6-hydroxydoapmine-induced cell death in human neuroblastoma SH-SY5Y cells. The EC50 values for these substances were found to be in the range from 0.27 ± 0.03 to 17.28 ± 0.16 μM. Because of these results, regular consumption of the fresh young leaves and buds of Toona sinensis might prevent the occurrence and development of Parkinson's disease (PD). This research suggests that the isolated limonoids could be significant for developing new drugs used for the prevention and treatment of PD.
The main side effects this plant can have are shown in the list below.
- Parkinson's disease
What herbs are paired with Toona sinensis?
This plant, known as toon, is frequently paired with turmeric, ginger, and garlic to enhance its medicinal properties in traditional culinary and therapeutic applications.
The addition of turmeric helps to amplify the anti-inflammatory effects often sought from the toon leaves. When combined with ginger, the blend serves to improve digestive health and stimulate circulation. Garlic is often integrated into these herb mixtures to bolster the immune system through synergistic antioxidant activity.
These specific pairings are essential for balancing the potent, bitter flavors of the plant while maximizing its nutritional benefits.