A novel approach of utilization of the fungal conidia biomass to remove heavy metals from the aqueous solution through immobilization

Cai, Chun-Xiang; Xu, Jian; Nian-fang, Deng; Dong, Xue-Wei; Tang, Hao; Liang, Yu; Fan, Xian‐Wei; Li, Youzhi

doi:10.1038/srep36546

Cited by 50 publications

(22 citation statements)

References 42 publications

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“…With the increase in BRB concentration from 10 to 50 mg/L, an increase in the adsorption capacity of ZnONP from 0.82 to 2.53 mg/g and a decrease in percentage adsorption from 82.1 to 50.6% was displayed. This trend is consistent with the ndings of other researchers 26,61,62 . Thus as the BRB concentration in the aqueous phase increased, more BRB molecules were xed on the active sites of ZnONPs, which resulted in site saturation, surface repulsions, and less percentage removal of dye from solution 63 .…”

Section: Brb Uptake On Znonpsupporting

confidence: 94%

One-Pot Synthesis of Zinc Oxide Nanoparticle for Bromophenol Blue Adsorption and Its Antifungal Activity Against Filamentous Fungi

Akpomie¹,

Ghosh²,

Gryzenhout³

et al. 2020

Preprint

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Zinc oxide nanoparticles (ZnONP) have gained attention in recent years due to their multifunctional uses, potent adsorptive potential and effective antifungal activities. Despite these desirable characteristics, ZnONP has not been used for the adsorption of bromophenol blue (BRB) and tests as antifungal agents against certain important filamentous fungal strains have been limited. In this research, ZnONP was prepared via a facile one-pot synthetic approach and applied in the adsorption of BRB and as an antifungal agent against the filamentous fungi and plant pathogens; Alternaria alternata CGJM3078, Alternaria alternata CGJM3006 and Fusarium verticilliodes CGJM3823. The ZnONP was characterized by the UV, FTIR, XRD, TGA, BET, SEM, TEM, and EDX techniques, which showed efficient synthesis. The characteristics ZnO UV absorption band was observed at 375 nm, while the XRD showed an average ZnONP crystalline size of 47.2 nm. The SEM and TEM images showed an irregular shaped and aggregated porous structure of 65.3 nm average-sized ZnONPs. The Freundlich, pseudo-second-order, and intra-particle diffusion models showed R2 > 0.9494 and SSE < 0.7412, thus, exhibited the best fit to the isotherm and kinetics of adsorption. Adsorption thermodynamics revealed feasible, endothermic, random, and spontaneous adsorption of BRB onto the synthesized ZnONPs. The antifungal assay conducted, depicted strong antifungal activities against all three tested fungal cultures. A model was proposed on what causes this antifungal effect. This research demonstrated the potent use of ZnONP for the adsorption of BRB and as effective antifungal agents.

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Section: Brb Uptake On Znonpsupporting

confidence: 94%

One-Pot Synthesis of Zinc Oxide Nanoparticle for Bromophenol Blue Adsorption and Its Antifungal Activity Against Filamentous Fungi

Akpomie¹,

Ghosh²,

Gryzenhout³

et al. 2020

Preprint

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“… 18 – 20 . Among the microorganisms studied for metal ion biosorption (bacteria, yeasts, fungi and algae) 21 – 27 , the Candida species (sp.) is one of more popular microbes that have been explored and show satisfactory biosorption performance 28 – 32 .…”

Section: Introductionmentioning

confidence: 99%

Biosorption Performance of Encapsulated Candida krusei for the removal of Copper(II)

Luk

Yip

Yuen

et al. 2017

Sci Rep

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The use of microorganisms in biosorption is one of the most promising ways to remove trace amounts of heavy metal ions. Nevertheless, the enhancement of the successful removal of heavy metal ions by using different combinations of biosorbents is not generally guaranteed which leaves room to explore the application of the technique. In this study, the performance of free and immobilized forms of a yeast strain, Candida krusei (C. krusei), and calcium alginate (CaAlg) are evaluated for their ability to remove copper(II). Infrared spectroscopy, studies on the effects of pH and temperature, and kinetics and isotherm modelling are carried out to evaluate the biosorption. The infrared spectroscopy shows that the primary biosorption sites on the biosorbents are carboxylate groups. In addition, a higher pH and higher temperatures promote biosorption while a decline in biosorption ability is observed for C. krusei at 50 °C. The kinetics study shows that C. krusei, CaAlg and immobilized C. krusei (MCaAlg) conform with good correlation to pseudo-second order kinetics. MCaAlg and CaAlg fit well to the Langmuir isotherm while C. krusei fits well to the Temkin isotherm. From the experimental data, encapsulating C. krusei showed improved biosoprtion and address clogging in practical applications.

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“…secretes inorganic metabolic products such as sulphide, carbonate or phosphate ions in their respiratory metabolism which precipitate toxic metals (Cd) in a form of non-enzymatic detoxification. Fouvert and Roux [43] also studied the mycelial mat of Mucor niceri, A. niger and P. chrysogenum and reported their role in removal of nickel, zinc, cadmium and lead by bio-adsorption. Anand et al [44] also reported that T. viride scavenge Cu from the medium by binding with cell wall.…”

Section: Effect Of Heavy Metal and Scavenging Potential Of T Asperelmentioning

confidence: 99%

Heavy Metals Scavenging Potential of Trichoderma asperellum and Hypocrea nigricans Isolated from Acid Soil of Jharkhand

et al. 2018

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Trichoderma asperellum (NAIMCC-F-03167) and Hypocrea nigricans (NAIMCC-F-03168) were isolated from the acidic soil of the vicinity of Litchi orchard, Ranchi, Jharkhand and were characterized on the basis of morphological, molecular and biochemical features. Both strains are fast growing, light to dark green, highly sporulative and have ability to cover 90 mm Petri dish within 96 h of inoculation. Biochemcial estimation of both isolates indicated significant cellulase and phosphate solubilisation activity. Highest cellulase activity was observed in T. asperellum (5.63 cm) followed by H. nigricans (5.10 cm) and phosphate solubilisation index was observed maximum in T. asperellum (1.93) followed by H. nigricans (1.39). Moreover, these isolates were molecularly identified on the basis of ribosomal DNA based sequences database and phylogenetic analysis in NCBI GenBank as T. asperellum (NCBI-KM 438015) and H. nigricans (NCBI-KJ910335). Negetive effect on sporulation of Lead (Pb) and Cadmium (Cd) was observed while in heavy metal scavenging potential, T. asperellum (88.9% Cd) showed highest scavenging potential followed by H. nigricans (87.2% Cd) while in Pb scavenging potential, H. nigricans (88% Pb) followed highest scavenging potential followed by T. asperellum (81.30% Pb) after 21 days of inoculation from 30 lg/ml heavy metals concentrated broth medium. If both potential bioagents can apply in Cd and Pb affected soil/water will be helpful in scavenging of heavy metals as well as management of phosphorus deficiency and soilborne fungal diseases.

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A novel approach of utilization of the fungal conidia biomass to remove heavy metals from the aqueous solution through immobilization

Cited by 50 publications

References 42 publications

One-Pot Synthesis of Zinc Oxide Nanoparticle for Bromophenol Blue Adsorption and Its Antifungal Activity Against Filamentous Fungi

One-Pot Synthesis of Zinc Oxide Nanoparticle for Bromophenol Blue Adsorption and Its Antifungal Activity Against Filamentous Fungi

Biosorption Performance of Encapsulated Candida krusei for the removal of Copper(II)

Heavy Metals Scavenging Potential of Trichoderma asperellum and Hypocrea nigricans Isolated from Acid Soil of Jharkhand

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