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Calcium alginate elastic capsules for microalgal cultivation
Du Tuan Tran1, Nhat-Khuong Nguyen1, Ajeet Singh Yadav1
1Queensland Micro- and Nanotechnology Centre, Griffith University 170 Kessels Road Nathan 4111 Queensland Australia nam-trung.nguyen@griffith.edu.au.
RSC Advances
|May 14, 2024
Summary
New elastic capsules made of calcium alginate offer a promising platform for microalgal cultivation. This novel cell culture method significantly enhances microalgal growth for aquafeed and human food supplements.
Area of Science:
- Biotechnology
- Materials Science
- Cell Biology
Background:
- Calcium alginate capsules with core-shell structures are versatile for various applications.
- Their mechanical elasticity and transparency make them suitable for cell culture.
- Producing these capsules in large quantities is achievable through diverse techniques.
Purpose of the Study:
- To report the production of consistent calcium alginate elastic capsules.
- To demonstrate the feasibility of these capsules for microalgal cultivation.
- To evaluate the efficacy of this platform for producing aquafeed and human food supplements.
Main Methods:
- Fabrication of calcium alginate elastic capsules with a core-shell structure.
- Cultivation of microalgae within the developed capsule platform.
- Comparative analysis of cell growth in capsule platforms versus control solutions.
Main Results:
- High consistency production of calcium alginate elastic capsules was achieved.
- The vibrationally-shaken capsule platform significantly enhanced microalgal growth.
- A maximum cell density of 4.86 × 10^8 cells/mL was obtained, surpassing control platforms.
Conclusions:
- Calcium alginate elastic capsules represent a novel and effective platform for microalgal cultivation.
- This technology shows significant potential for scalable production of aquafeed and human food supplements.
- The enhanced cell growth observed highlights the advantages of this innovative approach.
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