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- Title
Effect of Volume and Surface Area on Growth and Productivity of Microalgae in Culture System.
- Authors
Nayana, K.; Vidya, D.; Soorya, K.; Dineshan, Aswathi; Menon, Anaswara S.; Mambad, Rashida; Arunkumar, K.
- Abstract
In this study, the growth and productivity of five commercially important microalgae, Chroococcus sp., Haematococcus pluvialis, Dunaliella sp., Coelastrella saipanensis, and Chlorella sp., grown in different volume-to-surface area (V/S) ratios (1:1, 1:1.2, 1:1.28, 1:1.3, 1:1.6, 1:2.22, 1:4.16 and 1:6) were assessed based on their cell number, biomass, pigment content, carbohydrate, protein, photosynthetic O2 evolution, and dark respiration. The findings reveal that varied V/S ratios have significant effects on productivity and photosynthesis of each microalga. Hence, for culture system-photobioreactor design, the V/S ratio is to be considered as one of the important parameters. Photobioreactors play a significant role in the production of desired and environmentally benign products from microalgae. It is still challenging to design bioreactors for microalgal production. This study results show that H. pluvialis, Dunaliella sp., and C. saipanensis, potential microalgae for commercial production, have the highest cell number and biomass in the V/S ratio of 1:6, which mimic a tubular bioreactor. The Chroococcus sp. and Chlorella sp. are grown well in 1:4.16 V/S ratio which resemble flat-panel bioreactors. The carbohydrate, protein, and total chlorophyll concentrations also varying according to the V/S ratios. Through this study, it is evident that volume and surface area of culture system have significant effect on algae growth. The productivity of the algae is varying with V/S ratios, suggesting that specific V/S ratio is significant for designing photobioreactor. This laboratory experiment of growing microalgae in different volume to surface area influence the growth and productivity would provide cost effective quick baseline information to work further for selecting suitable bioreactors/culture system for large scale cultivation.
- Subjects
MICROALGAE; SURFACE area; LARGE scale systems; CHLORELLA vulgaris; GROWTH; ALGAL growth; DUNALIELLA; PHOTOBIOREACTORS; SCENEDESMUS
- Publication
BioEnergy Research, 2023, Vol 16, Issue 2, p1013
- ISSN
1939-1234
- Publication type
Article
- DOI
10.1007/s12155-022-10498-y