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Harvesting of freshwater microalgae with microbial bioflocculant: a pilot-scale study

Overview of attention for article published in Biotechnology for Biofuels and Bioproducts, February 2016
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Title
Harvesting of freshwater microalgae with microbial bioflocculant: a pilot-scale study
Published in
Biotechnology for Biofuels and Bioproducts, February 2016
DOI 10.1186/s13068-016-0458-5
Pubmed ID
Authors

Theoneste Ndikubwimana, Xianhai Zeng, Theophile Murwanashyaka, Emmanuel Manirafasha, Ning He, Wenyao Shao, Yinghua Lu

Abstract

Nowadays, bioflocculation is considered as a potential technology that could be able to alleviate microalgae dewatering cost regarded as the cornerstone hindrance of their full-scale application. However, most bioflocculation studies reported are laboratory scales. This study examined a pilot-scale and in situ flocculation of freshwater microalgae Desmodesmus brasiliensis by microbial bioflocculant. Biochemical composition of microalgal biomass was analyzed to evaluate the applicability of bioflocculation for microalgae-based biofuel production. The flocculation efficiency >98 % was achieved at both pilot-scale and in situ treatment. Bioflocculation is simple, effective, economic, and environmentally friendly. Even though total proteins recovered from biomass harvested by centrifugation and that harvested by bioflocculation were significantly different, there was no significant difference in total carbohydrates and total lipids recovered from either biomass harvested by centrifugation or biomass harvested by bioflocculation. The results herein presented, doubtlessly demonstrated that the γ-PGA bioflocculant produced by Bacillus licheniformis CGMCC 2876 is applicable for commercial-scale microalgae harvesting. In addition, bioflocculation process cost could greatly be reduced by in situ operation as no investment cost is needed for a separate flocculation tank and mixing device. Furthermore, bioflocculation method developed is a worthy microalgae harvesting method for algal-based biofuel production.Graphical abstractThe addition of bioflocculant to microalgae cultures followed by mixing elicits, the formation of heavy flocs which settle out by gravity sedimentation in a relatively short settling time.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 186 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 <1%
Belgium 1 <1%
Australia 1 <1%
Unknown 183 98%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 30 16%
Student > Bachelor 30 16%
Student > Master 26 14%
Researcher 23 12%
Student > Doctoral Student 9 5%
Other 25 13%
Unknown 43 23%
Readers by discipline Count As %
Engineering 31 17%
Agricultural and Biological Sciences 26 14%
Biochemistry, Genetics and Molecular Biology 17 9%
Environmental Science 16 9%
Chemical Engineering 13 7%
Other 20 11%
Unknown 63 34%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 March 2016.
All research outputs
#20,655,488
of 25,371,288 outputs
Outputs from Biotechnology for Biofuels and Bioproducts
#1,285
of 1,578 outputs
Outputs of similar age
#230,642
of 311,879 outputs
Outputs of similar age from Biotechnology for Biofuels and Bioproducts
#39
of 50 outputs
Altmetric has tracked 25,371,288 research outputs across all sources so far. This one is in the 10th percentile – i.e., 10% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,578 research outputs from this source. They receive a mean Attention Score of 4.9. This one is in the 10th percentile – i.e., 10% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 311,879 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 13th percentile – i.e., 13% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 50 others from the same source and published within six weeks on either side of this one. This one is in the 16th percentile – i.e., 16% of its contemporaries scored the same or lower than it.