MESSAI.iO

AI summary

82% confidence

This study demonstrates simultaneous electricity and bacterial nanocellulose (BNC) production from mature coconut water (MCW) waste using Acetobacter xylinum in a dual-chamber microbial fuel cell (MFC). MCW was supplemented with optimal concentrations of sucrose (40 g/L) and ammonium sulfate (4 g/L) to maximize BNC synthesis. The system achieved maximum current and power densities of 54.250 mA/m² and 5.886 mW/m² respectively. The resulting BNC was immobilized with silver nanoparticles (AgNPs) and demonstrated effective antimicrobial activity against E. coli and S. aureus, offering a valorization pathway for coconut industry waste.

Generated by MESSAI extraction pipeline · review against source PDF

Generic MFCRepresentative model
Click to animate flow
loading 3D model…

Representative MFC — matched on the paper’s system type only, not its reactor or geometry.

Extraction

Reported parameters

7 extracted values

View extracted values

Open in lab for full controls, parameter editing, and template overlays.

Open in lab →

What they did

System
MFC

What worked

No outcome metrics extracted yet.

Abstract

Mature coconut water (MCW) is a by-product of various coconut industries. It is produced in large quantities annually. If untreated, this waste can pollute groundwater systems upon discharge. In this study, MCW was used as a low-cost medium for bacterial nanocellulose (BNC) production. The effects of exogenous carbon and nitrogen sources were studied under static conditions. Suitable conditions were then selected for use in a microbial fuel cell (MFC) to generate electrical energy from BNC fermentation. Subsequently, the BNC was immobilized with silver nanoparticles (AgNPs) and used against the pathogenic bacteria Escherichia coli and Staphylococcus aureus. The results showed that the system generated maximum current density (CD) and power density (PD) of 54.250 ± 0.180 mA/m² and 5.886 ± 0.039 mW/m², respectively. The AgNPs-immobilized BNC film effectively inhibited the growth of both Gram-negative E. coli and Gram-positive S. aureus with inhibition zones measuring 26.0 ± 0.3 mm and 30.1 ± 0.2 mm, respectively. This study provides new insights into producing electrical energy during BNC synthesis fermentation.

Keywords

NanocellulosePulp and paper industryWastewaterWaste managementProduction (economics)Electricity

Identifiers

DOI
10.15243/jdmlm.2025.124.8015
Journal
Journal of Degraded and Mining Lands Management
Year
2025