Cited by 1,115Algal biology and biofuel productionAquatic Ecosystems and Phytoplankton DynamicsAquaculture Nutrition and Growth

Effects of different nitrogen and phosphorus concentrations on the growth, nutrient uptake, and lipid accumulation of a freshwater microalga Scenedesmus sp.

Xin, Li, Hong-ying, Hu, Ke, Gan, Ying-xue, Sun·2010·Bioresource Technology

Abstract

Microalgae have high potential to remove inorganic nutrients from wastewater and to produce biodiesel. Effects of nitrogen and phosphorus concentrations on growth, nutrient uptake, and lipid accumulation of a freshwater microalga Scenedesmus sp. LX1 were studied. Scenedesmus sp. LX1's growth was in accordance with the Monod model. The following Monod parameters were obtained: the N- and P-saturated maximum growth rate was 2.21 x 10(6) cells m L(-1)d(-1), and the half-saturation constants of N and P uptake were 12.1 mg L(-1) and 0.27 mg L(-1), respectively. In the nitrogen/phosphorus ratio of 5:1-12:1, 83-99% nitrogen and 99% phosphorus could be removed. In conditions of nitrogen (2.5 mg L(-1)) or phosphorus (0.1 mg L(-1)) limitation, Scenedesmus sp. LX1 could accumulate lipids to as high as 30% and 53%, respectively, of its algal biomass. The lipid productivity/unit volume of culture, however, was not enhanced. Further research should be made on how to enhance both lipid content and lipid productivity.

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Crossref · 10.1016/j.biortech.2010.02.016

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Authors
Xin, L., Hong-ying, H., Ke, G., & Ying-xue, S.
Affiliations
  • State Key Joint Laboratory of Environment Simulation and Pollution Control (CN)
  • China University of Mining and Technology - Beijing (CN)
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2010-07
Volume
101
Issue
14
Pages
5494-5500
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2015872810
Cited by
1,115
References
25
Citations by year
2026: 48 · 2025: 54 · 2024: 65 · 2023: 61 · 2022: 74 · 2021: 88 · 2020: 96 · 2019: 104 · 2018: 96 · 2017: 85 · 2016: 75 · 2015: 72 · 2014: 61 · 2013: 65 · 2012: 45
FWCI
19.99
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Science Fund for Distinguished Young Scholars
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
nitrogen limitation, phosphorus limitation, N:P ratio, microalgae growth, nutrient uptake, Monod kinetics, lipid accumulation, microalgae biodiesel, freshwater microalgae
MeSH terms
Biotechnology, Culture Media, Lipids, Nitrogen, Phosphorus, Regression Analysis, Time Factors, Biomass, Bioreactors, Scenedesmus, Nutritional Sciences, Eukaryota

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