Assessing phytoremediation potentials of selected tropical plants for acrylamide

Paz-Alberto, Annie Melinda; Dios, Ma. Johanna J. De; Alberto, Ronaldo T.; Sigua, Gilbert C.

doi:10.1007/s11368-011-0390-z

Cited by 14 publications

(9 citation statements)

References 21 publications

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“…Phytoremediation requires somewhat limited resources and is very useful in treating a wide variety of environmental contaminants. It is in this context that Uera et al [63] conducted a study aimed to assess the potential of selected tropical plants as phytoremediators of EtBr. This study used tomato (Solanum lycopersicum), mustard (Brassica alba), vetiver grass (Viteveria zizanioides), cogon grass (Imperata cylindrical), carabao grass (Paspalum conjugatum) and talahib (Saccharum spontaneum) to remove EtBr from laboratory wastes.…”

Section: Phytoremediation Potential Of Selected Plants For Mutagenic mentioning

confidence: 99%

“…However, the absorption capabilities of the other test plant may also be considered in terms of period of maturity and productivity. Uera et al [63] recommended that a more detailed and complete investigation of the phytoremediation properties of the different plants tested should be conducted in actual field experiments. Plants should be exposed until they reach maturity to establish their maximum response to the toxicity and mutagenecity of EtBr and their absorbing capabilities.…”

Section: Phytoremediation Potential Of Selected Plants For Mutagenic mentioning

confidence: 99%

“…This technique may also help solve the problem of disposing of contaminated acrylamide waste materials. Thus, Paz-Alberto et al [63] conducted a study 1) to evaluate phytoremediation potentials of some selected tropical plants in acrylamide contaminated soil; and 2) to compare the performance of tropical plants in absorbing acrylamide through accumulation in their roots, stems, and leaves. The 200 grams polyacrylamide gel (PAG) was poured in each pot and mixed thoroughly with the soil by stirring manually.…”

Section: Phytoremediation Potential Of Selected Tropical Plants For Amentioning

confidence: 99%

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Phytoremediation: A Green Technology to Remove Environmental Pollutants

Paz-Alberto¹,

Sigua²

2013

AJCC

Self Cite

167

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Land, surface waters, and ground water worldwide, are increasingly affected by contaminations from industrial, research experiments, military, and agricultural activities either due to ignorance, lack of vision, carelessness, or high cost of waste disposal and treatment. The rapid build-up of toxic pollutants (metals, radionuclide, and organic contaminants in soil, surface water, and ground water) not only affects natural resources, but also causes major strains on ecosystems. Interest in phytoremediation as a method to solve environmental contamination has been growing rapidly in recent years. This green technology that involved "tolerant plants" has been utilized to clean up soil and ground water from heavy metals and other toxic organic compounds. Phytoremediation involves growing plants in a contaminated matrix to remove environmental contaminants by facilitating sequestration and/or degradation (detoxification) of the pollutants. Plants are unique organisms equipped with remarkable metabolic and absorption capabilities, as well as transport systems that can take up nutrients or contaminants selectively from the growth matrix, soil or water. As extensive as these benefits are, the costs of using plants along with other concerns like climatic restrictions that may limit growing of plants and slow speed in comparison with conventional methods (i.e., physical and chemical treatment) for bioremediation must be considered carefully. While the benefits of using phytoremediation to restore balance to a stressed environment seem to far outweigh the cost, the largest barrier to the advancement of phytoremediation could be the public opposition. The long-term implication of green plant technology in removing or sequestering environmental contaminations must be addressed thoroughly. As with all new technology, it is important to proceed with caution.Keywords: Phytoremediation; Green Technology; Pollutants; Contaminants; Toxic Metals Green TechnologyThe success of green technology in phytoremediation, in general, is dependent upon several factors. First, plants must produce sufficient biomass while accumulating high concentrations of metal. In some cases, an increased biomass will lower the total concentration of the metal in the plant tissue, but allows for a larger amount of metal to be accumulated overall. Second, the metal-accumulating plants need to be responsive to agricultural practices that allow repeated planting and harvesting of the metalrich tissues. Thus, it is preferable to have the metal accumulated in the shoots as opposed to the roots, for metal in the shoot can be cut from the plant and removed. This is manageable on a small scale, but impractical on a large scale. If the metals are concentrated in the roots, the entire plant needs to be removed. Yet, the necessity of full plant removal not only increases the costs of phytoremediation, due to the need for additional labor and plantings, but also increases the time it takes for the new plants to establish themselves in the environment and begin ...

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Section: Phytoremediation Potential Of Selected Plants For Mutagenic mentioning

confidence: 99%

Section: Phytoremediation Potential Of Selected Plants For Mutagenic mentioning

confidence: 99%

Section: Phytoremediation Potential Of Selected Tropical Plants For Amentioning

confidence: 99%

See 1 more Smart Citation

Phytoremediation: A Green Technology to Remove Environmental Pollutants

Paz-Alberto¹,

Sigua²

2013

AJCC

Self Cite

167

View full text Add to dashboard Cite

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“…Cu 2+ , Cd 2+ , Zn 2+ ), as soluble complexes with organic or inorganic ligands (e.g. ZnCl + , CdCl 3 -, metal citrates) and associated with colloidal materials. Severe heavy metal contamination in soil may cause a variety of problems, including the reduction of yield and metal toxicity of plants, animals and humans.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Cleanup of Heavy Metal Polluted Landfill Soils and Improving Soil Microbial Activity Using Green Technology with Ferrous Sulfate

Sigua¹,

Celestino²,

Alberto³

et al. 2016

IJEP

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Landfills have led to some of the most intense battles over pollution that has ever been seen. With the population skyrocketing worldwide, these landfills will only become more of a public issue as time goes on. Heavy metals from several sources especially in landfills are an increasingly urgent problem because of its contribution to environmental deterioration and intensive degradation of soil microbial biodiversity. Despite the arguments over landfills in general, few or no effort was undertaken to clean up contamination of heavy metals in abandoned landfills. In our study new methods were proposed using a green technology or phytoremediation with ferrous sulfate in enhancing cleanup of heavy metal polluted landfill soils. Composite soil samples were collected near an open abandoned dump site in Cabanatuan City, Nueva Ecija, Philippines. Three rates of sulfur: 0, 40 and 80 mmol kg -1 as ferrous sulfate (26% S) was thoroughly mixed with the soil. Four healthy seedlings of mustard (Brassica juncea, L) were transplanted to each pot. Soil pH showed a decreasing trend for soils treated with 0 and 80 mmol kg -1 of sulfur (S) after 15 days (8.12 to 7.38) and after 25 days (8.56 to 7.78). Application of ferrous sulfate significantly enhanced microbial activities in contaminated soils. Average respiration rate in soil with 0 mmol kg -1 S was about 2.0 mg kg -1 CO 2 -C compared with 19.0 mg kg -1 CO 2 -C for soils amended with 80 mmol S kg -1 . Although dry matter yield and uptake of heavy metals by mustard were somewhat variable with S application, solubility of copper (Cu), zinc (Zn) and manganese (Mn) in soils was significantly (p≤0.001) increased with S application. Our study has demonstrated the beneficial outcome of green technology in combination with ferrous sulfate in cleaning up heavy metals contamination in landfills and at the same time improving soil microbial biomass following phytoremediation.

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“…Indian mustard plants over-expressing APS have increased tolerance and accumulation of selenium (Pickering et al, 2000). Paz-Alberto et al (2011) had assessed phytoremediation potentials of selected tropical plants for acrylamide. They found that mustard and pechay were the most effective to absorb the highest acrylamide concentrations in their root, shoot, and the whole plants.…”

Section: Introductionmentioning

confidence: 99%