Syzygium samarangense
What's the taxonomical classification of Syzygium samarangense?
Syzygium samarangense belongs to the kingdom Plantae and is classified within the phylum Streptophyta. As a member of the class Equisetopsida and the subclass Magnoliidae, it follows the evolutionary lineage of the order Myrtales. Its taxonomic placement continues within the family Myrtaceae, specifically falling under the genus Syzygium, with the specific epithet samarangense identifying the individual species.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Myrtales |
| Family | Myrtaceae |
| Genus | Syzygium |
| Species | samarangense |
What are the morphological characteristics of this plant?
Syzygium samarangense has an evergreen woody habit characterized by oppositely arranged, elliptical to oblong leaves that possess an entire margin and a coriaceous texture. The foliage typically displays a dark green upper surface with a lighter underside, often featuring prominent pinnate venation. Its reproductive structures consist of small, fragrant flowers that emerge in clusters from the axils or terminal ends of the branches. These flowers give way to fleshy, globose drupes that change color as they reach maturity. The bark of the tree is generally smooth and light gray, providing a distinct contrast to the dense canopy.
What is the geographical distribution of this plant?
This plant is endemic to the island of Sulawesi in Indonesia. It is primarily found growing within the tropical rainforest habitats of this specific Indonesian region. Its distribution is highly localized, meaning it does not occur naturally in other parts of the world. The species relies on the unique climatic and soil conditions provided by the Sulawesi archipelago to thrive. Consequently, its geographic range remains restricted to these specific Southeast Asian ecosystems.
How is this plant cultivated?
This plant, Syzygium samarangense, requires well-draining, acidic soil and a tropical climate with consistent humidity and temperatures between 20 and 30 degrees Celsius to thrive.
It is best cultivated in partial shade to protect its delicate leaves from intense direct sunlight. Regular watering is essential to keep the soil moist, although the roots must never sit in stagnant water to prevent rot. Providing organic mulch helps maintain steady soil moisture and nutrient levels throughout the growing season.
Mature specimens benefit from periodic fertilization with a balanced NPK formula to support lush foliage and eventual flowering.
What parts of this plant are used medicinally?
This plant Syzygium samarangense provides medicinal benefits through the use of its fruit and leaves. The edible fruit is often utilized for its nutritional properties and potential antioxidant effects. Meanwhile, the leaves are frequently employed in traditional remedies to treat various ailments. These botanical components contain bioactive compounds that contribute to the plant's therapeutic value. Using these specific parts allows for the application of natural healing practices in different cultures.
According to a study published by "Journal of natural products", the fresh ripe fruits of Syzygium samarangense were investigated for chemical constituents and potential health effects. Two delta-lactone derivatives, syzysamalactone (1) and 6-pentyl-alpha-pyrone (2), were isolated from these fruits. Syzysamalactone (1) is identified as an unusual 11-carbon delta-lactone derivative. These compounds displayed notable neuroprotective effects using the SH-SY5Y human neuroblastoma cell line. Specifically, compound 1 and compound 2 demonstrated EC50 values of 0.29 ± 0.03 and 1.28 ± 0.06 μM, respectively.
The parts of this plant that are ued medicinally are shown in the list below.
- fruit
- leaf
What traditional systems uses this plant?
This plant, Syzygium samarangense, is traditionally utilized in Southeast Asian folk medicine to treat various ailments through the application of its leaves, bark, and fruits.
Local communities often prepare decoctions from the bark to alleviate digestive issues and reduce inflammation. The leaves are frequently used in topical poultices to accelerate the healing of minor wounds and skin irritations. Some historical practices also involve consuming the fruit for its supposed nutritional and restorative properties.
These diverse applications demonstrate the deep integration of the species into regional ethnobotanical knowledge.
What are the pharmacological activities of Syzygium samarangense?
This plant has antimicrobial, antioxidant, antiproliferative, neuroprotective, and spasmolytic activities that stem from its rich concentration of bioactive phytochemicals. Its antioxidant properties help neutralize free radicals, thereby reducing oxidative stress within biological systems. The presence of specific secondary metabolites allows the plant to exhibit antimicrobial effects against various pathogenic microorganisms. Furthermore, its antiproliferative capacity suggests potential utility in inhibiting the growth of abnormal cells. Research also indicates that the plant provides neuroprotective benefits and possesses spasmolytic activity to alleviate smooth muscle contractions.
According to a study published by "Pakistan journal of biological sciences : PJBS", the volatile oil of Syzygium samarangense possesses antimicrobial properties against ten enteric bacteria. The oil demonstrated inhibitory effects with Proteus vulgaris showing the highest IC50 value of 0.75±0.004% v/v, while S. typhimurium was the most sensitive bacterium with a lowest IC50 value of 0.17±0.005% v/v. Additionally, the volatile oil acted as a competitive inhibitor against the extracellular protease of S. typhimurium. The studied enzyme had an optimal caseinolytic activity at pH 7.5 and 40 °C, and showed higher activity in the presence of Zn2+ at 9.3±0.33 U min-1 compared to the control at 7.0±0.58 U min-1 (p<0.05). Because of these activities, the volatile oil of S. samarangense is proposed as a potential antimicrobial agent.
The primary pharmacological activities of this plant are shown in the list below.
- antimicrobial
- antioxidant
- antiproliferative
- neuroprotective
- spasmolytic activity
What medicinal compounds this plant contains?
This plant contains medicinal compounds including syzysamalactone, flavonoids, wax apple polysaccharide, (E)-β-ocimene, and β-pinene. These bioactive constituents contribute to the diverse pharmacological profile associated with the species. The presence of flavonoids and wax apple polysaccharide provides significant antioxidant and immunomodulatory properties. Additionally, the volatile terpenes (E)-β-ocimene and β-pinene offer antimicrobial and anti-inflammatory potential. Together, these chemical components justify the traditional use of the plant in various therapeutic applications.
According to a study published by "Journal of natural products", the fresh ripe fruits of Syzygium samarangense contain the new 11-carbon delta-lactone derivative syzysamalactone (1) and the known biogenetically related delta-lactone derivative 6-pentyl-alpha-pyrone (2). These isolated compounds were assessed for potential neuroprotective effects using the SH-SY5Y human neuroblastoma cell line. Syzysamalactone (1) displayed notable neuroprotective effects with an EC50 value of 0.29 ± 0.03 μM. Additionally, 6-pentyl-alpha-pyrone (2) demonstrated neuroprotective activity with an EC50 value of 1.28 ± 0.06 μM. This study represents the first report of delta-lactone derivatives showing these significant activities.
The primary medicinal compounds of this plant are shown in the list below.
- syzysamalactone
- flavonoids
- wax apple polysaccharide
- (E)-β-ocimene
- β-pinene
What health conditions is this plant used for?
This plant is used for managing diarrhea, inhibiting enteric bacteria growth, reducing hyperglycemia, treating hypermotility states of the gut, and preventing oxidative damage. Its medicinal properties help stabilize intestinal movements to control excessive gut motility. The plant also possesses antimicrobial qualities that effectively limit the proliferation of harmful enteric bacteria. Furthermore, its bioactive compounds play a significant role in regulating blood sugar levels to combat hyperglycemia. Finally, its antioxidant capacity provides a protective effect against cellular oxidative damage.
According to a study published by "Phytotherapy research : PTR", Syzygium samarangense is used for diarrhoea and hypermotility states of the gut. The hexane extract of the plant relaxes the spontaneously contracting isolated rabbit jejunum at doses of 10-3000 microg/mL. When tested for calcium channel blocking activity, the extract relaxes high K+-induced contractions at 10-1000 microg/mL and decreases Ca++ dose-response curves at 30-100 microg/mL. Four isolated flavonoids showed dose-dependent spasmolytic activity at 10-1000 microg/mL. The presence of these compounds with spasmolytic and calcium antagonist activity explains the medicinal use of the plant in treating diarrhoea.
The main health conditions this plant is used for are shown in the list below.
- diarrhoea
- hyperglycemia
- hypermotility states of the gut
- oxidative damage
- enteric bacteria growth
What are the herbal preparations of this plant?
This plant is used to create medicinal herbal preparations including essential oil, hexane extract, and wax apple polysaccharide. The essential oil is typically obtained through steam distillation to capture volatile aromatic compounds for therapeutic use. Researchers utilize hexane extract to isolate non-polar bioactive constituents that may possess antioxidant or antimicrobial properties. Additionally, the extraction of wax apple polysaccharide provides complex carbohydrates that are studied for their potential immunomodulatory effects. These diverse preparations allow for a wide range of applications in pharmacological research and traditional medicine.
According to a study published by "Pakistan journal of biological sciences : PJBS", the volatile oil of Syzygium samarangense was extracted via hydrodistillation and tested against ten enteric bacteria. Proteus vulgaris exhibited the highest IC50 value of 0.75±0.004% v/v, whereas S. typhimurium was the most sensitive bacterium with a lowest IC50 value of 0.17±0.005% v/v. The volatile oil of Syzygium samarangense also acted as a competitive inhibitor against the extracellular protease of S. typhimurium. This protease, which had a purification fold of 3.73 and reached 314.2 μmol min-1 mg-1 protein, showed optimal caseinolytic activity at pH 7.5 and 40 °C. Because it inhibited a wide range of enteric bacteria, the volatile oil of Syzygium samarangense is proposed as a potential antimicrobial agent.
The main herbal preparations of this plant are shown in the list below.
- Essential oil
- Hexane extract
- Wax apple polysaccharide
What side effects this plant can have?
This plant can cause diarrhea, skin itches, common cold symptoms, and waist pain as adverse health side effects. While these complications may occur during consumption, researchers have also identified significant neuroprotective effects within its chemical composition. Some individuals might experience digestive distress or localized skin irritation after exposure. Additionally, certain users report musculoskeletal discomfort in the waist area. Despite these potential issues, its ability to protect nerve cells remains a primary focus of scientific study.
According to a study published by "Phytotherapy research : PTR", the hexane extract of Syzygium samarangense (Ss.Hex) relaxes spontaneously contracting isolated rabbit jejunum in a dose-dependent manner from 10 to 3000 microg/mL. Testing for calcium channel blocking activity showed that the extract relaxed high K+-induced contractions at 10-1000 microg/mL and decreased Ca++ dose-response curves at 30-100 microg/mL. Four flavonoids isolated from the extract, identified as SS1, SS2, SS3, and SS4, demonstrated dose-dependent spasmolytic activity between 10 and 1000 microg/mL. Among these, SS2 was found to be the most potent. These findings suggest that the calcium antagonist and spasmolytic activities of Syzygium samarangense may explain its medicinal use in diarrhoea and hypermotility states of the gut.
The main side effects this plant can have are shown in the list below.
- diarrhoea
- itches
- cold
- waist pain
- neuroprotective effects
What herbs are paired with Syzygium samarangense?
This plant Syzygium samarangense pairs best with aromatic herbs such as lemongrass, ginger, and mint to complement its subtle floral notes.
The bright, citrusy profile of lemongrass enhances the delicate fragrance of the blossoms during infusion. Ginger adds a warm, spicy undertone that balances the plant's natural sweetness. Mint provides a refreshing finish that cleanses the palate after consuming herbal preparations.
These combinations are frequently used in traditional wellness teas to create a harmonious flavor profile.