ArticleEnvironmental science and pollution research international2018
Using poly-glutamic acid as soil-washing agent to remediate heavy metal-contaminated soils.
Article in Environmental science and pollution research international, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Exogenous γ-polyglutamic acid alleviates cadmium stress in rice through redox regulation and modulation of cadmium accumulation.Journal of the science of food and agriculture · 2026Article
- Domestication-Selected Promoter Insertion in WRKY17 Increases Cadmium Sensitivity in Apple.Plant biotechnology journal · 2026Article
- Effect of sesame cake fertilizer with γ-PGA on soil nutrient, water and nitrogen use efficiency.Scientific reports · 2024Article
- Peptides Used for Heavy Metal Remediation: A Promising Approach.International journal of molecular sciences · 2024Review
- Heavy Metal Removal from Wastewater Using Poly(Gamma-Glutamic Acid)-Based Hydrogel.Gels (Basel, Switzerland) · 2024Article
- Oil-Contaminated Soil Remediation with Biodegradation by Autochthonous Microorganisms and Phytoremediation by Maize (Molecules (Basel, Switzerland) · 2023Article
- Effect of Soil Washing with an Amino-Acid-Derived Ionic Liquid on the Properties of Cd-Contaminated Paddy Soil.Toxics · 2023Article
- Hydrocarbon Degradation and Microbial Survival Improvement in Response to γ-Polyglutamic Acid Application.International journal of environmental research and public health · 2022Article
- Article
- Effects of Amendments and Indigenous Microorganisms on the Growth and Cd and Pb Uptake of Coriander (Toxics · 2022Article
- Recent Advances in Microbial Synthesis of Poly-γ-Glutamic Acid: A Review.Foods (Basel, Switzerland) · 2022Review
- Evaluation of the Effectiveness of the Biopreparation in Combination with the Polymer γ-PGA for the Biodegradation of Petroleum Contaminants in Soil.Materials (Basel, Switzerland) · 2022Article
- Remediation of Smelter Contaminated Soil by Sequential Washing Using Biosurfactants.International journal of environmental research and public health · 2021Article
- A field pilot-scale study on heavy metal-contaminated soil washing by using an environmentally friendly agent-poly-γ-glutamic acid (γ-PGA).Environmental science and pollution research international · 2020Article
- Poly-γ-glutamic acid, a bio-chelator, alleviates the toxicity of Cd and Pb in the soil and promotes the establishment of healthy Cucumis sativus L. seedling.Environmental science and pollution research international · 2018Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
The extraction efficiency of heavy metals from soils using three forms of gamma poly-glutamic acid (γ-PGA) as the washing agents was investigated. Controlling factors including agent concentrations, extraction time, pH, and liquid to soil ratio were evaluated to determine the optimum operational conditions. The distribution of heavy metal species in soils before and after extraction processes was analyzed. Up to 46 and 74% of heavy metal removal efficiencies were achieved with one round and a sequential extraction process using H-bonding form of γ-PGA (200 mM) with washing time of 40 min, liquid to solid ratio of 10 to 1, and pH of 6. Major heavy metal removal mechanisms were (1) γ-PGA-promoted dissolution and (2) complexation of heavy metal with free carboxyl groups in γ-PGA, which resulted in heavy metal desorption from soils. Metal species on soils were redistributed after washing, and soils were remediated without destruction of soil structures and productivity.
Indexed as
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.