title: Remediation of Cu metal-induced accelerated Fenton reaction by potato peels bio-sorbent.
abstract: This article has allied exposure to Ecological Particulate Matter (EPM) and its remediation using potato peel surface (PPC) bio-sorbent on two important edible crops Spinacia oleracea and Luffa acutangula. Fenton reaction acceleration was one of the major stress oxidation reactions as a consequence of iron and copper toxicity, which involve in the formation of hydroxyl radical (OH) through EPM. Results showed that the oxidative stress encouraged by Cu in both species that recruits the degradation of photosynthetic pigments, initiating decline in growth, reduced leaf area and degrade proteins. The plants were cultivated in natural environmental condition in three pots with three replicates like (a) control, (b) Cu treated and (c) treated water. Oxidative stress initiated by metal activity in Cu accumulated plant (b) were controlled, through bio-sorption of metal from contaminated water using PPC; arranged at laboratory scale. The acceleration of Fenton reaction was verified in terms of OH radical generation. These radicals were tested in aqueous extract of leaves of three types of plants via benzoic acid. The benzoic acid acts as a scavenger of OH radical due to which the decarboxylation of benzoic acid cured. Observation on (b) showed more rapid decarboxylation as compared to other plants which showed that Cu activity was much higher in (b) as compared to (a) and (c). The rapid decarboxylation of benzoic acid and lower chlorophyll contents in (b) suggest that Fenton reaction system was much enhanced by Cu-O and Fe-O chemistry that was successfully controlled by PPC which results in restoring the metabolic pathway and nullifying oxidative stress in
authors.affiliation: Department of Chemistry, University of Karachi, Karachi, 75270, Pakistan. rafiasaeed200@yahoo.com.
authors.forename: Rafia
authors.initials: R
authors.lastname: Azmat
authors.affiliation: Department of Botany, University of Karachi, Karachi, 75270, Pakistan.
authors.forename: Sumeira
authors.initials: S
authors.lastname: Moin
authors.affiliation: Department of Chemistry, University of Karachi, Karachi, 75270, Pakistan.
authors.forename: Ailyan
authors.initials: A
authors.lastname: Saleem
mesh_terms: D019817:Benzoic Acid / Q000737:chemistry; D003300:Copper / Q000737:chemistry* / Q000633:toxicity; D004784:Environmental Monitoring; D006861:Hydrogen Peroxide / Q000737:chemistry*; D017665:Hydroxyl Radical / Q000737:chemistry; D007501:Iron / Q000737:chemistry*; D029776:Luffa / Q000187:drug effects / Q000254:growth & development; D010084:Oxidation-Reduction; D018384:Oxidative Stress; D018515:Plant Leaves / Q000737:chemistry; D011198:Solanum tuberosum; D018724:Spinacia oleracea / Q000187:drug effects / Q000254:growth & development; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000633:toxicity; D018508:Water Purification
chemical_list: D014874:Water Pollutants, Chemical; D017665:Hydroxyl Radical; D003300:Copper; D019817:Benzoic Acid; D006861:Hydrogen Peroxide; D007501:Iron
keywords: Benzoic acid; Fenton reaction; PPC; Pigments; Protein