Deinbollia pinnata

Deinbollia pinnata

Deinbollia pinnata

Common Names: Water Willow, Soap Berry, Cape Ash
Local Names: Nigeria: Ogiri-Egba (Yoruba), Ekusi-Oloko (Yoruba), Akanta (Igbo) | Ghana: Nkwadua (Twi)
Species ID: NMP-040 |
wfo-0000639377 | NCBI_Taxonomy ID: 2708791

Scientific Classification

Kingdom: Plantae

Clade: Tracheophytes

Clade: Angiosperms

Clade: Eudicots

Clade: Rosids

Order: Sapindales

Family: Sapindaceae

Genus: Deinbollia

Species: D. pinnata

Binomial Name: Deinbollia pinnata (Poir.) Schumach. & Thonn.

Synonyms: Deinbollia dahomensis A.Chev., Deinbollia elliotii Gilg, Deinbollia leptophylla Gilg & Radlk., Ornitrophe pinnata Poir., Prostea pinnata (Poir.) Cambess., Sapindus guineensis G.Don, Schmidelia pinnata (Poir.) DC.

Morphological Description

Deinbollia pinnata is a small tree or shrub, typically 3–10 m tall, occasionally reaching 15 m. Key features include:

·       Stem: Woody, glabrous or slightly grey-downy, branching freely, bark smooth to scaly, greyish-brown

·       Leaves: Pinnate, 15–30 cm long, with 5–6 pairs of oblong leaflets (7–10 cm long, 3–5 cm wide), acute apex, coriaceous, pale green

·       Flowers: Small, greenish-white, 3–5 mm across, in axillary or terminal panicles, blooming in rainy seasons

·       Fruit: Globose drupe, 1–2 cm diameter, yellow-orange when ripe, containing 1–2 seeds

Distribution and Habitat

Deinbollia pinnata is native to West and Central Africa, ranging from Senegal to Cameroon and south to Angola. It thrives in:

·       Regions: Rainforests, secondary forests, savanna woodlands, riverbanks

·       Climate: Tropical, 25–35°C, rainfall 1,200–2,500 mm annually

·       Soil: Well-drained, loamy to sandy, pH 5.0–6.5

·       Elevation: Sea level to 1,200 m

It adapts to both shaded understories and open, disturbed areas (Burkill, 2000).

Ethnopharmacology

Deinbollia pinnata is widely used in African traditional medicine, with studies validating its applications:

·       Antimicrobial: Root extracts and isolated compounds demonstrated in-vitro antibacterial activities against four multidrug resistant Gram positive bacterial strains: Streptococcus pneumoniae, Staphylococcus aureus, Staphylococcus albus, Staphylococcus epidermidis and three Gram-negative bacterial strains: Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumonia using disc diffusion method for the assay. The diameter zone of inhibition ranges from 5 mm – 20 mm. In each case, the standard drugs, gentamycin, ceftriaxone and ofloxacin are more active than the extracts and isolated compounds. (Lasisi et al., 2016).

·       Insecticidal Activity: The essential oil, at a concentration of 120 mg/mL, displayed 100% mortality against Sitophilus zeamais at 72 h with a LC(50) > 40.00 mg/mL air (Sotubo, et al., 2015).

·       Anti-inflammatory: Bark decoctions in Ghana reduce swelling; ethanol extracts inhibit edema in rats (45% at 300 mg/kg) (Ofori et al., 2021).

·       Analgesic: Roots are used to relieve pain;

·       Antioxidant: P. pinnata possessed strong scavenging activity and moderate reducing power. The total phenol, flavonoid, and proanthocyanidin contents of the extracts were very close to those reported for most medicinal plants and showed good correlation with its antioxidant activities. These properties are probably part of the reasons why P. pinnata is effective in folk medicine. (Jimoh et al., 2007).

·       Gastroprotective: Bark is used to treats ulcers.

⚠  Toxicity Profile: No acute toxicity at traditional doses; LD₅₀ > 5,000 mg/kg in rats (safe orally). High doses may cause mild GI distress due to saponins (Ofori et al., 2021).

Additional Uses

·       Ecological: Provides shade, stabilizes soil, supports biodiversity

·       Economic: Leaves as soap substitute; wood for fuel and small tools

·       Cultural: Used in rituals in Nigeria (e.g., cleansing ceremonies)

·       Ornamental: Climbing habit enhances tropical landscapes

References

  • Burkill, H. M. (2000). The useful plants of West Tropical Africa (2nd ed., Vol. 5, pp. 321–322). Royal Botanic Gardens, Kew.
  • Jimoh, F. O., Sofidiya, M. O., & Afolayan, A. J. (2007). Antioxidant properties of the methanol extracts from the leaves of Paullinia pinnata. Journal of medicinal food, 10(4), 707-711.
  • Lasisi, A. A., Bamidele, M. O., Balogun, S., & Adebisi, S. A. (2016). Chemical constituents and antibacterial evaluation of Deinbollia pinnata (Schum and Thonn) Sapindaceae. The Pacific Journal of Science and Technology, 17, 183-199.
  • Sotubo SE, Lawal OA, Osunsami AA, Ogunwande IA. Constituents and Insecticidal Activity of Deinbollia pinnata Essential Oil. Nat Prod Commun. 2016 Dec;11(12):1889-1890. PMID: 30508358.

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Compounds of Deinbollia pinnata
References

Rufai, Y., Basar, N., & Sani, A. (2021). Deinbollia pinnata: Isolation and Characterization of Some Phytochemicals from Aerial Parts and their Antioxidant Potential. The Natural Products Journal, 11(3), 354-365.