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Updated: Nov 12, 2025

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Published on: February 26, 2021

Bacterial Cellulose Spheres that Encapsulate Solid Materials.

Laurel A Bitterman¹, Adolfo Martinez², Catherine Mulholland¹

¹Department of Environmental Engineering, Montana Technological University.

Journal of Visualized Experiments : Jove

|March 15, 2021

Summary

Researchers developed a low-cost method to produce bacterial cellulose (BC) spheres for encapsulating solid particles. These BC spheres show potential for environmental applications like contaminant removal and soil amendment.

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Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder

Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder

Published on: May 22, 2014

Area of Science:

Biomaterials Science
Materials Engineering
Environmental Science

Background:

Bacterial cellulose (BC) is a novel biomaterial with growing research interest.
Efficient and cost-effective methods for BC sphere production are needed.
Encapsulation capabilities of BC spheres require further investigation.

Purpose of the Study:

To present an affordable and simple protocol for producing bacterial cellulose spheres.
To develop and validate an encapsulation method for solid particles using BC spheres.
To explore potential applications of BC spheres in environmental remediation and agriculture.

Main Methods:

BC spheres were produced by combining water, black tea, sugar, vinegar, and bacterial culture in agitated baffled flasks.
Encapsulation efficiency was tested using biochar, polymer beads, and mine waste.
Characterization involved ImageJ software for size analysis and thermal gravimetric analysis (TGA).

Main Results:

BC spheres with an average diameter of 7.5 mm were produced within 7 days.
Incorporating various particles increased the average size range of the BC capsules.
The BC spheres successfully encapsulated 10-20% of their dry mass.

Conclusions:

The developed method offers a low-cost and accessible approach for BC sphere production and particle encapsulation.
BC spheres demonstrate potential as effective agents for contaminant removal, controlled-release fertilizer coatings, and soil amendments.