Bioelectricity Production from Blueberry Waste

Rojas-Flores, Segundo; Benites, Santiago M.; Cruz-Noriega, Magaly De La; Cabanillas-Chirinos, Luis; Valdiviezo-Dominguez, Fiorela; Alvarez, Medardo Alberto Quezada; Vega-Ybañez, Victor; Angelats‐Silva, Luis

doi:10.3390/pr9081301

Cited by 36 publications

(12 citation statements)

References 36 publications

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“…According to Stein and Granot (2019), sucrose is a raw material for many metabolic pathways providing energy, as well as carbon skeletons for the production of organic matter such as amino acids and structural carbohydrates [26]. Many microorganisms that generate electricity use carbohydrates and different types of compounds for their proliferation, which is why there would be a direct relationship where, when increasing the values of the voltage and electric current, it would be due to the increase in the percentage of sucrose [27,28]. It has been observed in some works of the literature that the use of metallic materials produces high values of currents and voltage, but it is also counterproductive for the proliferation of microorganisms and therefore for the generation of electric currents [25,29].…”

Section: Resultsmentioning

confidence: 99%

Increase in Electrical Parameters Using Sucrose in Tomato Waste

et al. 2022

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The use of organic waste as fuel for energy generation will reduce the great environmental problems currently caused by the consumption of fossil sources, giving agribusiness companies a profitable way to use their waste. In this research, tomato waste with different percentages of sucrose (0-target, 5, 10, and 20%) was used in microbial fuel cells manufactured on a laboratory scale with zinc and copper electrodes, managing to generate maximum peaks of voltage and a current of 1.08 V and 6.67 mA in the cell with 20% sucrose, in which it was observed that the optimum operating pH was 5.29, while the MFC with 0% (target) sucrose generated 0.91 V and 3.12 A on day 13 with a similar pH, even though all the cells worked in an acidic pH. Likewise, the cell with 20% sucrose had the lowest internal resistance (0.148541 ± 0.012361 KΩ) and the highest power density (224.77 mW/cm2) at a current density of 4.43 mA/cm2, while the MFC with 0% sucrose generated 160.52 mW/cm2 and 4.38 mA/cm2 of power density and current density, respectively, with an internal resistance of 0.34116 ± 0.2914 KΩ. In this sense, the FTIR (Fourier-transform infrared spectroscopy) of all the substrates used showed a high content of phenolic compounds and carboxylate acids. Finally, the MFCs were connected in a series and managed to generate a voltage of 3.43 V, enough to light an LED (green). These results give great hope to companies and society that, in the near future, this technology can be taken to a larger scale.

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Section: Resultsmentioning

confidence: 99%

Increase in Electrical Parameters Using Sucrose in Tomato Waste

et al. 2022

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“…Molecular identification was performed by the Analysis and Research Center of Biodes laboratory, for which pure cultures of the isolated bacterial strains were sent. The protocol for molecular identification was proposed by Rojas-Flores et al (2021) [18], based on 16S rRNA analysis, which is specifically used for bacteria [19].…”

Section: Molecular Identification Of Bacteriamentioning

confidence: 99%

“…They were incubated at temperatures of 30 • for yeasts and 35 and 44.5 • C (for the isolation of total coliforms). The procedure for the isolation of microorganisms was carried out in duplicate [18].…”

Section: Isolation Of Electrogenic Microorganisms From the Anode Chambermentioning

confidence: 99%

“…Voltage and current values in MFCs were monitored for 35 days by using a multimeter (Prasek Premium PR-85, Lima, Peru), with an external resistor of 1000 Ω, whose values were taken at 10 am every day. Power density (PD) and current density (CD) values were calculated by using the formula of Rojas-Flores et al (2021) with external resistors of 0.2 (±0.1), 0.6 (±0.18), 1 (±0.3), 1.5 (±0.31), 3 (±0.6), 10 (±1.3), 20 (±6.5), 50 (±8.7), 60 (±8.2), 100 (±9.3), 120 (±9.8), 220 (±13), 280 (±21.4), 350 (±31.5), 390 (±24.5), 460 (±23.1), 531 (±26.8), 700 (±40.5), 1200 (±90.2) Ω [18]. Conductivity (conductivity meter, Lutron, CD-4301, Taiwan, China), pH (pH-meter, Oakton, 110 Series, Vernon Hills, IL, USA), and brix values (brix refractometer, Yhequipment Co., RHB-32, Shenzhen, China) were monitored during the 35 days.…”

Section: Physicochemical Characterization Of Mfcsmentioning

confidence: 99%

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Golden Berry Waste for Electricity Generation

et al. 2022

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The environmental problems caused by the excessive use of fossil fuels for electricity generation have led to the development of new technologies. Microbial fuel cells constitute a technology that uses organic sources for electricity generation. This research gives a novel means of using Golden Berry waste as fuel for electricity generation through microbial fuel cells made at low cost, achieving current and voltage peaks of 4.945 ± 0.150 mA and 1.03 ± 0.02 V, respectively. Conductivity values increased up to 148 ± 1 mS/cm and pH increased up to 8.04 ± 0.12 on the last day. The internal resistance of cells was 194.04 ± 0.0471 Ω, while power density was 62.5 ± 2 mW/cm2 at a current density of 0.049 A/cm2. Transmittance peaks of the Fourier-transform infrared (FTIR) spectrum showed a decrease when comparing the initial and final spectra, while the bacterium Stenotrophomonas maltophilia was molecularly identified with an identity percentage of 99.93%. The three cells connected in series managed to generate 2.90 V, enough to turn on a TV remote control. This research has great potential to be scalable if it is possible to increase the electrical parameters, generating great benefits for companies, farmers, and the population involved in the production and marketing of this fruit.

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“…The isolation of electrogenic microorganisms inside the anodic chamber was done by replicating the experimental method from Rojas et al 2021, [17]. Whereas, molecular recognition was done by the Analysis and Investigation Center from "Biodes Laboratorios".…”

Section: Isolation Of Electrogenic Microorganisms In Anodic Chambermentioning

confidence: 99%

Potential Use of Papaya Waste as a Fuel for Bioelectricity Generation

et al. 2021

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Papaya (Carica papaya) waste cause significant commercial and environmental damage, mainly due to the economic losses and foul odours they emit when decomposing. Therefore, this work provides an innovative way to generate electricity for the benefit of society and companies dedicated to the import and export of this fruit. Microbial fuel cells are a technology that allows electricity generation. These cells were produced with low-cost materials using zinc and copper electrodes; while a 150 mL polymethylmethacrylate tube was used as a substrate collection chamber (papaya waste). Maximum values of 0.736 ± 0.204 V and 5.57 ± 0.45 mA were generated, while pH values increased from 3.848 to 8.227 ± 0.35 and Brix decreased slowly from the first day. The maximum power density value was 878.38 mW/cm2 at a current density of 7.245 A/cm2 at a maximum voltage of 1072.77 mV. The bacteria were identified with an identity percentage of 99.32% for Achromobacter xylosoxidans species, 99.93% for Acinetobacter bereziniae, and 100.00% for Stenotrophomonas maltophilia. This research gives a new way for the use of papaya waste for bioelectricity generation.

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Bioelectricity Production from Blueberry Waste

Cited by 36 publications

References 36 publications

Increase in Electrical Parameters Using Sucrose in Tomato Waste

Increase in Electrical Parameters Using Sucrose in Tomato Waste

Golden Berry Waste for Electricity Generation

Potential Use of Papaya Waste as a Fuel for Bioelectricity Generation

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