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- Title
Controlling of two destructive zooplanktonic predators in Chlorella mass culture with surfactants.
- Authors
Wen, Xiaobin; Zhang, Aoqi; Zhu, Xiaoyan; Liang, Lin; Huo, Yan; Wang, Kaixuan; Yu, Youzhi; Geng, Yahong; Ding, Yi; Li, Yeguang
- Abstract
Background: Predatory flagellates and ciliates are two common bio-contaminants which frequently cause biomass losses in Chlorella mass culture. Efficient and targeted ways are required to control these contaminations in Chlorella mass cultivation aiming for biofuel production especially. Results: Five surfactants were tested for its ability to control bio-contaminations in Chlorella culture. All five surfactants were able to eliminate the contaminants at a proper concentration. Particularly the minimal effective concentrations of sodium dodecyl benzene sulfonate (SDBS) to completely eliminate Poterioochromonas sp. and Hemiurosomoida sp. were 8 and 10 mg L−1, respectively, yet the photosynthesis and viability of Chlorella was not significantly affected. These results were further validated in Chlorella mass cultures in 5, 20, and 200 m2 raceway ponds. Conclusions: A chemical method using 10 mg L−1 SDBS as pesticide to control predatory flagellate or ciliate contamination in Chlorella mass culture was proposed. The method helps for a sustained microalgae biomass production and utilization, especially for biofuel production.
- Subjects
POPULAR culture; CHLORELLA; SURFACE active agents; CHLORELLA vulgaris; PREDATORY animals; BIOMASS energy; CILIATA
- Publication
Biotechnology for Biofuels, 2021, Vol 14, Issue 1, p1
- ISSN
1754-6834
- Publication type
Article
- DOI
10.1186/s13068-021-01873-6