Cited by 19Algal biology and biofuel productionAquatic Ecosystems and Phytoplankton DynamicsAquaculture Nutrition and Growth

Biomass and Lipid Productivity by Two Algal Strains of Chlorella sorokiniana Grown in Hydrolysate of Water Hyacinth

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Dahiya, Swati, Chowdhury, Raja, Tao, Wendong, Kumar, Pradeep·2021·Energies

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Abstract

Hydrolysate prepared from the chemical hydrolysis of water hyacinth biomass contains a high amount of solubilised carbohydrate and nutrients. This hydrolysate was utilised as a medium for the cultivation of two strains of Chlorella sorokiniana, isolated from a municipal wastewater treatment plant using two different media, i.e., BG-11 and Knop’s medium. Different light intensities, light–dark cycles, and various concentrations of external carbon sources (monosaccharides and inorganic carbon) were used to optimise the microalgal growth. For the accumulation of lipids and carbohydrates, the microalgal strains were transferred to nutrient amended medium (N-amended and P-amended). It was observed that the combined effect of glucose, inorganic carbon, and a 12:12 h light–dark cycle proved to be the optimum parameters for high biomass productivity (~200 mg/L/day). For Chlorella sorokiniana 1 (isolated from BG-11 medium), the maximum carbohydrate content (22%) was found in P-amended medium (N = 0 mg/L, P: 3 mg/L), whereas, high lipid content (17.3%) was recorded in N-amended medium (N = 5 mg/L, P = 0 mg/L). However, for Chlorella sorokiniana 2 (isolated from the Knop’s medium), both lipid (17%) and carbohydrate accumulation (12.3%) were found to be maximum in the N-amended medium. Chlorella sorokiniana 2 showed a high saturated lipid accumulation compared to other strains. Kinetic modelling of the lipid profile revealed that the production rate of fatty acids and their various constituents were species dependent under identical conditions.

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  • A comparative assessment of the ability of microalgae to accumulate lipids without specifying information on cultivation media can only be indicative.

    “A comparative assessment of the ability of microalgae to accumulate lipids without specifying information on cultivation media [13, 135] can only be indicative.”

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Authors
Dahiya, S., Chowdhury, R., Tao, W., & Kumar, P.
Affiliations
  • Indian Institute of Technology Roorkee (IN)
  • SUNY College of Environmental Science and Forestry (US)
  • Sharda University (IN)
Corresponding author
Chowdhury, Raja
Venue
Energies
Publisher
MDPI AG
Published
2021-03-04
Volume
14
Issue
5
Pages
1411
ISSN
1996-1073 (ISSN-L)
OpenAlex
W3133691504
Cited by
19
References
80
Citations by year
2026: 2 · 2025: 5 · 2024: 3 · 2023: 5 · 2022: 2 · 2021: 2
FWCI
0.56
Type
journal article
Language
en
Open access
Locations
  • Energies (publishedVersion, cc-by)
  • Preprints.org (acceptedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Ministry of Human resource Development (DST-1589-CED, DBT-893-CED)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
Keywords
Chlorella sorokiniana, microalgae cultivation, lipid accumulation, carbohydrate accumulation, biomass productivity, light-dark cycle, glucose supplementation, inorganic carbon, nutrient amendment, saturated fatty acids

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