Microbial analysis and chemical composition of maize (Zea mays, L.) growing on a recirculating vertical flow constructed wetland treating sewage on-site

García-Pérez, Alfredo; Harrison, Mark D.; Grant, Bill; Chivers, Craig

doi:10.1016/j.biosystemseng.2012.12.009

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…It contains carbohydrates, fat, protein, vitamins, and minerals [30]. It has been reported that, most of these biomolecules from the corn are responsible for the formation of AgNPs [31]. Therefore, considering all these facts, in the present study, we attempted AgNPs synthesis by reduction of Ag + with the Zea mays L. aqueous extract under the photo-catalyzed condition followed by its characterization by UV-Vis spectroscopy, XRD, SEM, EDX, and FT-IR analysis.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of silver nanoparticle using extract of Zea mays (corn flour) and investigation of its cytotoxicity effect and radical scavenging potential

Rajkumar

Sápi

Das

et al. 2019

Journal of Photochemistry and Photobiology B: Biology

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Silver nanoparticles (AgNPs) possesses a number of exceptional pharmaceutical properties and applications as compared with other types of metallic nanoparticles. Currently, AgNPs was biosynthesized using an aqueous extract of Zea mays L. (corn flour) powder. Further, the effect of concentration of reagents, extract, temperature and time of synthesis was also studied along with the cytotoxicity and radical scavenging potential. UV-vis spectra of AgNPs gave a surface plasmon resonance at~420 nm. The absorption peak became sharp with the increase in time. AgNPs with monodispersed and aggregated spherical shape was observed by SEM image followed by its confirmation via strong signal in silver region of EDX spectrum. The XRD spectra confirmed its crystallinity and face-centered cubic structure. FT-IR spectra reveal the presence of phytocompounds in the synthesis of AgNPs. Further, the AgNPs exhibited strong cytotoxicity potential against HepG2 cells and its viability declined with an increase in the concentration of AgNP with respect to the control cells. It also demonstrated reasonable radical scavenging potential in terms of DPPH and ABTS scavenging, and reducing power tests. Taken together, these results of the current investigation stated that AgNPs could be beneficial in biomedical applications particularly for treatment of cancer disease along with its applications in pharmaceutical industries for the formulation of new drugs.

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Section: Introductionmentioning

confidence: 99%

Biosynthesis of silver nanoparticle using extract of Zea mays (corn flour) and investigation of its cytotoxicity effect and radical scavenging potential

Rajkumar

Sápi

Das

et al. 2019

Journal of Photochemistry and Photobiology B: Biology

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“…Thus, this datum (36% removal efficiency) is significant to show that constructed wetlands can also remove potassium. The concentration of potassium in effluents from domestic wastewater sources ranges from 18 to 57 mg/L [25].…”

Section: Resultsmentioning

confidence: 99%

Recycled Shredded-Tire Chips Used As Support Material in a Constructed Wetland Treating High-Strength Wastewater from a Bakery: Case Study

García-Pérez

Harrison²,

Chivers

et al. 2015

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Support material used in constructed wetlands has been shown to be a key element and significant mechanism in the process of contaminants removal from sewage including phosphorus compounds. Recycled waste tires processed into small chips that are similar to conventional stone aggregate are currently used in the construction of septic system leach fields and could be a green alternative as support material in constructed wetlands. During three years, the performance of a gravity subsurface horizontal flow constructed wetland using recycled shredded-tire chips as support material to treat on-site the high strength wastewater from a bakery was monitored. Grab samples of the effluent from the septic tank and the constructed wetland were collected quarterly and submitted to a certified laboratory. Final treatment efficiency (percentage removal) was low for potassium (36%), intermediate for total nitrogen (56%), and total Kjeldahl nitrogen (57%), and relatively high for total phosphorus (65%), total suspended solids (69%), ammonia-nitrogen (87%), five-day biochemical oxygen demand (92%), Escherichia coli (97%), and fat-oil and grease total (99%). Nitrate-nitrogen final mean value was consistently below 1 mg/L, and iron concentration increased from less of 2 mg/L in the sewage to 55 mg/L in the constructed wetland effluent. These results show that recycled shredded-tire chips could be an

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“…For unrestricted diffusion (soluble) components (IDE), corn has the most signals in the free carbohydrate area (about 10% more than wheat and 55% more than broccoli, based on integration), with the majority of signals arising from glucose and fructose, which is consistent with the literature (Figure 4c). 37,38 It is important to note that in the case of corn, the seed was cut in half, and it is possible that some of this additional signal intensity from soluble molecules could arise from D 2 O leaching components from the exposed interior of the seed. The IDE (unrestricted diffusion (soluble) components, Figure 4b) and DE (restricted diffusion components, Figure 4e) for broccoli looked quite similar, and both were dominated by lipids in large part because of the lower carbohydrate levels compared to the other two species.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Comprehensive Multiphase NMR Spectroscopy of Intact ¹³C-Labeled Seeds

Lam

Soong

Sutrisno

et al. 2013

J. Agric. Food Chem.

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Seeds are complex entities composed of liquids, gels, and solids. NMR spectroscopy is a powerful tool for studying molecular structure but has evolved into two fields, solution and solid state. Comprehensive multiphase (CMP) NMR spectroscopy is capable of liquid-, gel-, and solid-state experiments for studying intact samples where all organic components are studied and differentiated in situ. Herein, intact (13)C-labeled seeds were studied by a variety of 1D/2D (1)H/(13)C experiments. In the mobile phase, an assortment of metabolites in a single (13)C-labeled wheat seed were identified; the gel phase was dominated by triacylglycerides; the semisolid phase was composed largely of carbohydrate biopolymers, and the solid phase was greatly influenced by starchy endosperm signals. Subsequently, the seeds were compared and relative similarities and differences between seed types discussed. This study represents the first application of CMP-NMR to food chemistry and demonstrates its general utility and feasibility for studying intact heterogeneous samples.

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Microbial analysis and chemical composition of maize (Zea mays, L.) growing on a recirculating vertical flow constructed wetland treating sewage on-site

Cited by 8 publications

References 8 publications

Biosynthesis of silver nanoparticle using extract of Zea mays (corn flour) and investigation of its cytotoxicity effect and radical scavenging potential

Biosynthesis of silver nanoparticle using extract of Zea mays (corn flour) and investigation of its cytotoxicity effect and radical scavenging potential

Recycled Shredded-Tire Chips Used As Support Material in a Constructed Wetland Treating High-Strength Wastewater from a Bakery: Case Study

Comprehensive Multiphase NMR Spectroscopy of Intact ¹³C-Labeled Seeds

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Microbial analysis and chemical composition of maize (Zea mays, L.) growing on a recirculating vertical flow constructed wetland treating sewage on-site

Cited by 8 publications

References 8 publications

Biosynthesis of silver nanoparticle using extract of Zea mays (corn flour) and investigation of its cytotoxicity effect and radical scavenging potential

Biosynthesis of silver nanoparticle using extract of Zea mays (corn flour) and investigation of its cytotoxicity effect and radical scavenging potential

Recycled Shredded-Tire Chips Used As Support Material in a Constructed Wetland Treating High-Strength Wastewater from a Bakery: Case Study

Comprehensive Multiphase NMR Spectroscopy of Intact 13C-Labeled Seeds

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Comprehensive Multiphase NMR Spectroscopy of Intact ¹³C-Labeled Seeds