Effects of Polluting Soil with Cassava Mill Effluent on the Bacteria and Fungi Populations of a Soil Cultivated with Maize

Ogboghodo, I. A.; Oluwafemi, A. P.; Ekeh, S. M.

doi:10.1007/s10661-006-7658-6

Cited by 8 publications

(4 citation statements)

References 4 publications

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“…Wastes generated by cassava processing pose serious environmental pollution threat especially with increased industrial production of cassava flour and starch (Goodley, 2004). Cassava processing is generally considered to contribute significantly to environmental pollution and environmental nuisance (Ubalua, 2007), because the effluents produced during and after processing are usually discharged indiscriminately into the environment, particularly on farmlands (Ogboghodo et al, 2001(Ogboghodo et al, , 2006. These wastes such as peelings, fibrous byproducts and wastewater effluents are indiscriminately disposed into the environment without prior treatment to reduce the volume, toxicity or mobility of the hazardous substances.…”

Section: Cassava (Manihot Esculentamentioning

confidence: 99%

Toxicity evaluation of waste effluent from cassava-processing factory in Lagos state, Nigeria using the Allium cepa assay

Ogunyemi¹,

Samuel²,

Amund³

et al. 2017

Ife Journal of Science

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Mutagenic and genotoxic effects of cassava wastewater (CWW) were investigated by assay of Allium cepa root meristematic cells. The physicochemical parameters of the wastewater samples were also determined. In Allium root growth inhibition test, experimental onion bulbs were cultivated in various concentrations of the CWW and distilled water was used as a negative control. After 72 h, the root tips from the treated bulb were processed for cytological studies by orcein squash technique. The mean lengths of root bundles were obtained and effective concentration (EC) values calculated. The cytotoxic effects on the onion root tips showed strong growth retardation at high concentrations of the effluent with EC value of 5.67%. The mitotic index (MI) 50 rapidly decreased with increasing effluent concentration compared to control. There was significant increase in frequency of chromosome aberrations (stickiness, c-mitosis, vagrant, bridged fragment, binuclei, multipolar anaphase, attached chromosome and laggard chromosome) in root tip meristem cells of Allium cepa at all tested concentrations. At lower concentrations (0.005%), binuclei, (0.5%), vagrant chromosome and (1.0%), bridged fragment were the most common aberrations observed while at higher concentrations, (100 %), c-mitosis, vagrant and bridged fragment were the typical aberrations observed. The results indicate that the effluent samples collected were highly mutagenic. The results of physicochemical analysis revealed that the concentrations of some parameters (turbidity, chemical oxygen demand (COD), biological oxygen demand (BOD), conductivity, total dissolved solid (TDS), total suspended solid (TSS), sulphate, nitrate, phosphate and metals-copper, cobalt, chromium, iron, manganese, magnesium, nickel, cadmium, lead, sodium, potassium and calcium) were above the maximum permissible limit set by world health organization (WHO) and could partly be correlated with the toxicity of wastewater. The findings indicate that the substances contained in the cassava effluents may be toxic to living organisms and may pollute the environment if untreated.

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Section: Cassava (Manihot Esculentamentioning

confidence: 99%

Toxicity evaluation of waste effluent from cassava-processing factory in Lagos state, Nigeria using the Allium cepa assay

Ogunyemi¹,

Samuel²,

Amund³

et al. 2017

Ife Journal of Science

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“…Human immunodeficiency virus (HIV) and hepatitis B virus (HBV) are the two most common chronic viral infections in the world today. With an estimated 260,000 children infected with HIV at the end of 2011, Nigeria accounts for more than 10% of the global paediatric HIV burden (Ogboghodo et al, 2006). Hepatitis B infection affects organs such as the liver, thereby resulting in both acute and chronic disease.…”

Section: Introductionmentioning

confidence: 99%

Prevalence of hepatitis B virus and HIV infections among pregnant women visiting healthcare institutions in Ebonyi State, Nigeria.

Nwuzo¹,

Emioye²,

Moses³

et al. 2020

Sci. Res. Essays

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This study aims to determine the prevalence of hepatitis B virus (HBV) and HIV infections among pregnant women visiting Healthcare Institutions within Ebonyi State, Nigeria. Blood samples were collected from 100 pregnant women who visited Rural Improvement Missionary Hospital (RIMH) and General Hospital (GHE) within Ebonyi State. The presence of hepatitis B surface antigen (HBsAg) in serum was determined using Antec strips (Antec Diagnostics UK) while commercially available Enzyme linked immunosorbent assays (ELISA) based rapid diagnostic test kit (Biotech diagnostic, USA) was used to assay for HIV. Sixteen 16 (11.8%) of the pregnant women examined were sero-positive for HBV, 15(10%) were positive for HIV and 4% were positive for co-infection of HBV and HIV. Occupation was significantly associated with the prevalence of the hepatitis B co-infection in the population examined as 8.8% of housewives and 5.5% of business women had co-infection at p<0.05. The prevalence rate of 11.8% for HBV; 10% for HIV; and 4% for HBV and HIV co-infection reported in this study confirms the endemicity of HBV and HIV within the study area. This could cause serious public health problem if not properly tackled. Thus, it is very pertinent to carry out HBV and HIV screening as a routine in ante-natal care.

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“…Wastes generated by cassava processing pose serious environmental pollution threat especially with increased industrial production of cassava flour and starch (Goodley, 2004). Cassava processing is generally considered to contribute significantly to environmental pollution and environmental nuisance (Ubalua, 2007), because the effluents produced during and after processing are usually discharged indiscriminately into the environment, particularly on farmlands (Ogboghodo et al, 2001(Ogboghodo et al, , 2006. These wastes such as peelings, fibrous by-products and wastewater effluents are indiscriminately disposed into the environment without prior treatment to reduce the volume, toxicity or mobility of the hazardous substances.…”

Section: Introductionmentioning

confidence: 99%

Toxicity evaluation of waste effluent from cassava-processing factory in lagos state, nigeria using the Allium cepa assay

Ogunyemi¹,

Samuel²,

Amund³

et al. 2018

Ife Journal of Science

View full text Add to dashboard Cite

Mutagenic and genotoxic effects of cassava wastewater (CWW) were investigated by assay of Allium cepa root meristematic cells. The physicochemical parameters of the wastewater samples showing cyanide content were also determined. In Allium root growth inhibition test, experimental onion bulbs were cultivated in various concentrations of the CWW and distilled water was used as a negative control. After 72 h, the root tips from the treated bulb were processed for cytological studies by orcein squash technique. The mean lengths of root bundles were obtained and effective concentration (EC) values calculated. The cytotoxic effects on the onion root tips showed strong growth retardation at high concentrations of the effluent with EC value of 10%. The 50 mitotic index (MI) rapidly decreased with increasing effluent concentration compared to control. There was significant increase in frequency of chromosome aberrations (sticky chromosome, c-mitosis, vagrant chromosome, bridges fragment, binucleated cells, multipolar anaphase, attached chromosome and laggard chromosome) in root tip meristem cells of Allium cepa at all tested concentrations. Further analysis using oneway ANOVA revealed that there was a statistically significant difference (p<0.05) in concentration-dependent inhibition of onion root growth, mitotic index and induction of chromosomal aberration in the Allium cepa test. The results indicate that the effluent samples collected were highly mutagenic. The results of physicochemical analysis revealed that the concentrations of some parameters (conductivity, total suspended solid (TSS), total dissolved solid (TDS), biological oxygen demand (BOD), nitrate, cyanide, chloride and metals-magnesium, aluminum, chromium, cadmium, manganese and iron) were above the maximum permissible limit set by world health organization (WHO) and could partly be correlated with the toxicity of wastewater. The findings indicate that the substances contained in the cassava effluents may be toxic to living organisms and may pollute the environment if untreated.

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Effects of Polluting Soil with Cassava Mill Effluent on the Bacteria and Fungi Populations of a Soil Cultivated with Maize

Cited by 8 publications

References 4 publications

Toxicity evaluation of waste effluent from cassava-processing factory in Lagos state, Nigeria using the <i>Allium cepa</i> assay

Toxicity evaluation of waste effluent from cassava-processing factory in Lagos state, Nigeria using the <i>Allium cepa</i> assay

Prevalence of hepatitis B virus and HIV infections among pregnant women visiting healthcare institutions in Ebonyi State, Nigeria.

Toxicity evaluation of waste effluent from cassava-processing factory in lagos state, nigeria using the <i>Allium cepa</i> assay

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