Citation: Wu Yinhu, Yu Yin, Hu Hongying. The “Fingerprint” of a freshwater microalga Scenedesmus sp. LX1: Visualizing the composition of its soluble algal products[J]. Chinese Chemical Letters, ;2019, 30(5): 1126-1128. doi: 10.1016/j.cclet.2019.02.034 shu

The “Fingerprint” of a freshwater microalga Scenedesmus sp. LX1: Visualizing the composition of its soluble algal products

Wu Yinhu ^a ,
Yu Yin ^b ,
Hu Hongying ^a,c,*,

a.
Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, China
b.
State Key Laboratory of Environmental Criteria and Risk Assessment, Research Center of Water Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
c.
Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, China

hyhu@tsinghua.edu.cn

Received Date: 26 December 2018
Revised Date: 27 February 2019
Accepted Date: 28 February 2019
Available Online: 28 May 2019

Figures(1)

In this study, a fingerprint analysis method along with the EEM fluorescence spectra was used to characterize the SAPs released by Scenedesmus sp. LX1 during the growth process. Resin fractionation was used firstly to divide the SAPs into six resin fractions, and then size exclusion chromatography (SEC) was performed to separate each resin fraction into several subfractions with different molecular weights (MW). The fingerprint graph integrated the information revealed by resin fractionation as well as that by SEC, showing that main components of SAPs changed from the hydrophilic subfractions with MW of 10²-10³ Da to the hydrophobic subfractions with MW of 10³-10⁴ Da. Comparing these results with the EEM fluorescence spectra of different resin fractions, the change of the main matters within SAPs could be inferred.
- Microalgae,
- Soluble algal products,
- Fingerprint analysis,
- Resin fractionation,
- Molecular weight distribution
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