Effect of cassava mill effluent on biological activity of soil microbial community

Igbinosa, Etinosa O.

doi:10.1007/s10661-015-4651-y

Cited by 29 publications

(24 citation statements)

References 40 publications

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“…A significant decrease in bacterial diversity has been observed with increased soil pollution (Subrahmanyam et al 2014c). Therefore, soil microbial activity and community structure are accepted as indicators of overall soil environmental quality (Winding et al 2005;Igbinosa 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of long-term industrial waste effluent pollution on soil enzyme activities and bacterial community composition

Subrahmanyam

Shen

Liu

et al. 2016

Environ Monit Assess

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Although numerous studies have addressed the influence of exogenous pollutants on microorganisms, the effect of long-term industrial waste effluent (IWE) pollution on the activity and diversity of soil bacteria was still unclear. Three soil samples characterized as uncontaminated (R1), moderately contaminated (R2), and highly contaminated (R3) receiving mixed organic and heavy metal pollutants for more than 20 years through IWE were collected along the Mahi River basin, Gujarat, western India. Basal soil respiration and in situ enzyme activities indicated an apparent deleterious effect of IWE on microbial activity and soil function. Community composition profiling of soil bacteria using 16S rRNA gene amplification and denaturing gradient gel electrophoresis (DGGE) method indicated an apparent bacterial community shift in the IWE-affected soils. Cloning and sequencing of DGGE bands revealed that the dominated bacterial phyla in polluted soil were affiliated with Firmicutes, Acidobacteria, and Actinobacteria, indicating that these bacterial phyla may have a high tolerance to pollutants. We suggested that specific bacterial phyla along with soil enzyme activities could be used as relevant biological indicators for longterm pollution assessment on soil quality.

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Section: Introductionmentioning

confidence: 99%

Effect of long-term industrial waste effluent pollution on soil enzyme activities and bacterial community composition

Subrahmanyam

Shen

Liu

et al. 2016

Environ Monit Assess

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“…Authors have variously reported that cassava mill affects microbial, heavy metal, and general physicochemical parameters of the receiving soil (Nwaugo et al, 2007(Nwaugo et al, , 2008Ehiagbonare et al, 2009;Eneje and Ifenkwe, 2012;Nwakaudu et al, 2012;Okechi et al, 2012;Osakwe, 2012;Chinyere et al, 2013;Izonfuo et al, 2013;Omotiama et al, 2013;Okunade and Adekalu, 2013;Ezeigbo et al, 2014;Ibe et al, 2014;Eze and Onyilide, 2015;Igbinosa, 2015;Igbinosa and Igiehon, 2015;Omomowo et al, 2015;Izah et al, 2017b).…”

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confidence: 99%

Amino Acid and Proximate Composition of <i>Saccharomyces cerevisiae</i> Biomass Cultivated in Cassava Mill Effluents

Izah¹,

Bassey²,

Ohimain³

2017

mmr

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Cassava mill effluent (CME) is generated during cassava processing into cassava flake or gari. The effluents affects the quality of the receiving environment such soil. It is could affect domestic animals such as goat and sheep when they ingest it, and retard normal growth and productivity of plants in the affected soil. This study evaluated amino acid and proximate composition of Saccharomyces cerevisiae cultivated in cassava mill effluents. S. cerevisiae used in this study was isolated from palm wine based on cultural, morphological, and physiological/biochemical characteristics. 10 ml of S. cerevisiae broth was inoculated into 100ml of sterile cassava mill effluents filtered with double muslin cloth. The medium was shaken intermittently between 7.00 to 19.00 hours' time interval. The medium was decanted and subsequently filtered using Whatman filter paper. The resultant biomass was washed with distilled water and re-filtered. The sludge/biomass recovered were oven dried. Amino acid and proximate composition of the yeast biomass produced was analyzed using spectrophotometer. Proximate composition was also analyzed following standard procedure. Result showed that the total essential amino acid (40.88 g/100 g) was slightly higher than the Food and Agricultural Organization/World Health Organization (FAO/WHO) standard for feed use. While the total non-essential amino acid (21.56 g/100 g) was lower than FAO/WHO limits. Mean proximate composition was 17.01% (crude protein), 7.34% (ash), 56.40% (carbohydrate) and 407.13 kcal/100 g (calorific value/energy content). The findings of this study showed that during fermentation of cassava mill effluents with S. cerevisiae an appreciable amount protein is enriched considering the fact that the substrate is a waste.

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“…Ohimain at the Niger Delta University, Wilberforce Island, Nigeria. The abstract of this study have been accepted for poster presentation in 13 th International Conference on Industrial Health, Safety and Environment scheduled for October [16][17] 2017 at Dubai, UAE.…”

Section: Acknowledgementmentioning

confidence: 99%

“…Authors have variously reported that cassava mill effluent contain heavy metals [11][12][13][14][15]. Furthermore, authors have also reported cassava mill effluent is having impact on soil characteristics with regard to general physicochemical, microbial and heavy metals characteristics [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Several heavy metal pollution remediation's are available.…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metals in Cassava Mill Effluents with Saccharomyces cerevisiae isolated from Palm Wine

Izah¹

2017

MOJT

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Nigeria is World leading producer of cassava accounting for about 20% of global output. Rudimentary equipment is used for cassava processing into several products such as high quality cassava flour by smallholders that dominate the cassava processing sector in Nigeria. The properties of the wastewater (cassava mill effluents) often exceed the limits for effluents to be discharge into the environment (land and surface water) as specified by Federal Environmental Protection Agency. Cassava mill effluents induce toxicological effects on the environment and its associated biota such as fisheries, flora and fauna as well as humans. This study evaluated the capacity of Saccharomyces cerevisiae isolated from palm wine to remove heavy metals in cassava mill effluents. The S. cerevisiae was identified using conventional microbiological techniques based on their cultural, morphological and physiological/biochemical characteristics. S. cerevisiae was inoculated into the sterile effluent and incubated for 15 days and triplicate sample were withdrawn at 5 days interval for analysis. The samples were prepared and analyzed using flame atomic adsorption spectrometry. Results showed a decline by 44.52%, 26.26%, 51.54%, 43.20% and 65.19% for copper, zinc, manganese, iron and nickel respectively. The findings of this study showed that S. cerevisiae is a potential microorganism for the remediation of heavy metals in cassava mill effluents. Keywords:

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Effect of cassava mill effluent on biological activity of soil microbial community

Cited by 29 publications

References 40 publications

Effect of long-term industrial waste effluent pollution on soil enzyme activities and bacterial community composition

Effect of long-term industrial waste effluent pollution on soil enzyme activities and bacterial community composition

Amino Acid and Proximate Composition of <i>Saccharomyces cerevisiae</i> Biomass Cultivated in Cassava Mill Effluents

Removal of Heavy Metals in Cassava Mill Effluents with Saccharomyces cerevisiae isolated from Palm Wine

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