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D. A. Dashak

Publications (7)

Bioactive Evaluation and Antimicrobial Activities of Nigerian Mistletoe (Phragmanthera incana) Leaf Extracts

L. E. Gambo, D. A. Dashak & A. M. Lohdip · Asian Journal of Research in Medical and Pharmaceutical Sciences · 2026

Mistletoe is a hemiparasitic medicinal plant traditionally used for several human and animal ailments. This study evaluated the phytochemical constituents and antibacterial activity of aqueous and methanolic leaf extracts of Nigerian mistletoe parasitic on Stereospermum kunthianu...

Open access Research Article 10.9734/ajrimps/2026/v15i3411

Proximate Analysis and Antioxidant Activity Studies on Santalaceae (Viscum album) Leaf Extract

L. E. Gambo, D. A. Dashak & A. M. Lohdip · Asian Journal of Research in Medical and Pharmaceutical Sciences · 2026

This study characterised the methanolic leaf extract of mistletoe (Viscum album) parasitic on Moringa oleifera by assessing its phytochemical constituents, trace elements, extract yield, and in vitro DPPH radical-scavenging activity. Leaves collected in Nasarawa State, Nigeria, w...

Open access Research Article 10.9734/ajrimps/2026/v15i3409

Eisenia fetida Squirms Biased Bioremediation of Pyrene and Indeno(1, 2, 3–cd)Pyrene Soil and Petroleum Wastewater Contamination

C. Fawole, D. A. Dashak, S. J. Salami, S. Abdulmumin, M. R. Larbong & H. A. Chimezie-Nwosu · Current Journal of Applied Science and Technology · 2022

Raw mean levels of pyrene (pyr) and indeno(1,2,3-cd)pyrene petroleum wastewater were 8.00±0.00 and 9.20±0.03 mg/L respectively. Petroleum wastewater impacted soil gave Pyr (8.00±0.01) and Ind (9.50±0.00) mg/kg. The biased and effective nature of Eisenia fetida vermiaccumulated Py...

Open access Research Article 10.9734/cjast/2022/v41i231652

Bioengineered Approach for Ex situ Vermiextraction of Acenaphthylene, Benzo (E)Pyrene and Benzo (Ghi) Perylene Soil Contamination

C. Fawole, S. J. Salami, D. A. Dashak & H. A. Chimezie-Nwosu · Current Journal of Applied Science and Technology · 2021

The ex situ study of vermiextraction of Acenaphthylene (AcPY), Benzo(e)pyrene (BeP) and Benzo(ghi)perylene (BP) form constructed vermiculture containing petroleum contaminated soil (8.00±0.01, 9.80±0.00 and 5.02±0.00 mg/kg respectively) and vermiaccumulation (AcPY, 1.05±0.00, BeP...

Open access Research Article 10.9734/cjast/2021/v40i3231556

An Analytical Investigation Study of Potential Human Health Risks Caused by Petroleum-contaminated Surface Water Containing Various Toxic Heavy Metals at the Okpoka Creek, Niger-Delta, Nigeria

Fawole Charles, S. J. Salami, D. A. Dashak & H. A. Chimezie-Nwosu · International Research Journal of Pure and Applied Chemistry · 2021

Surface water samples were collected from the Okpoka Creek, Niger-Delta using the grab samples method and were analytically investigated for petroleum contamination. The liquid-liquid extraction of petroleum hydrocarbons was carried out following standard procedures of U.S EPA 35...

Open access Research Article 10.9734/irjpac/2021/v22i230382

Phytoremediation, Vermiremediation and Efficiency Assessments of Total Petroleum Hydrocarbons in Contaminated Surface Water from Okpoka Creek, Niger-Delta Nigeria using Cyperus odoratus, Colocasia esculenta, Phoenix roebelenii and Eisenia fetida

C. Fawole, S. J. Salami, D. A. Dashak & A. C. Harmony · Journal of Advances in Biology & Biotechnology · 2020

The liquid-liquid extraction of Petroleum contaminated surface water samples were conducted in accordance with standard procedure of US EPA. Identification and quantification of TPHs was performed by Gas chromatograph with Mass spectrometric detection (GC/MSD) in accordance with...

Open access Research Article 10.9734/jabb/2020/v23i830169

Teratogenicity, Mutagenicity, Carcinogenicity, Genotoxicity and Toxicity of Petroleum- contaminated Wastewater in Niger-Delta Nigeria

Fawole Charles, S. J. Salami & D. A. Dashak · Asian Journal of Applied Chemistry Research · 2020

The chronic human health effects of the 17 US Environmental Protection Agency [USEPA] priority pollutants of polycyclic aromatic hydrocarbons [PAHs] were investigated and characterized in petroleum contaminated wastewater discharged indiscriminately into the surface water of Okpo...

Open access Research Article 10.9734/ajacr/2019/v4i330114