scholarly journals Effects of harvesting cell density, medium depth and environmental factors on biomass and lipid productivities of Chlorella vulgaris grown in swine wastewater

2016 ◽  
Vol 152 ◽  
pp. 403-412 ◽  
Author(s):  
Hossein Amini ◽  
Lijun Wang ◽  
Abolghasem Shahbazi
Keyword(s):  
Environmental Factors ◽  
Cell Density ◽  
Chlorella Vulgaris ◽  
Swine Wastewater

scholarly journals A new bioassay using Chlorella vulgaris cell density for detecting mycotoxins

2013 ◽  
Vol 7 (50) ◽  
pp. 5709-5712
Author(s):  
B Aboul Nasr M ◽  
A Zohri Abdel Naser ◽  
Mahmoud Amer Enas
Keyword(s):  
Cell Density ◽  
Chlorella Vulgaris ◽  
New Bioassay

scholarly journals Growth characteristics of shade-acclimated marine Chlorella vulgaris under high-cell-density conditions

2018 ◽  
Vol 39 (5(SI)) ◽  
pp. 747-753 ◽  
Author(s):  
T. Katayama ◽  
◽  
N. Nagao ◽  
M. Goto ◽  
F. Md. Yusoff ◽  
...  
Keyword(s):  
Cell Density ◽  
Chlorella Vulgaris ◽  
High Cell Density ◽  
Growth Characteristics ◽  
High Cell

scholarly journals Exploration of IAA Producing Bacteria And Amylolitic Bacteria From Several East Java Lakes, and Their Potency For Microbial Consortium To Accelerate Chlorella Vulgaris Growth

2021 ◽  
Author(s):  
Imroatun Nafi'ah ◽  
Sitoresmi Prabaningtyas ◽  
Agung Witjoro ◽  
Yanis Kurnia Basitoh ◽  
Achmad Rodiansyah ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Cell Density ◽  
Chlorella Vulgaris ◽  
Bacillus Amyloliquefaciens ◽  
Microbial Consortium ◽  
Bacterial Isolates ◽  
Bacteria Culture

Abstract The consortium of various types of bacteria from lakes in East Java has the potency to stimulate microalgae Chlorella vulgaris growth. Increased microalgae density from co-culture has an excellent potency for sources of biomass that can be developed for renewable energy. Several stages conducted of this research started from an exploration of IAA producing bacteria and amylolytic bacteria from several East Java Lakes; then, the highest bacterial isolates were identified with morphological and genotypical characteristics. The well-characterized bacterial isolates were used for the microbial consortium in co-culture with C. vulgaris. The treatment used in this study as follows: I) C. vulgaris without bacteria culture as a control, II) amylolytic bacteria + C. vulgaris, III) IAA-producing bacteria + C. vulgaris, IV) potential amylolytic bacteria and IAA-producing bacteria + C. vulgaris. The exploration result of potential bacteria from Ranu Pani, Ranu Regulo, Telaga Ngebel, and Ranu Grati lakes was found 53 amylolytic bacterial isolates, and 90 isolates IAA-producing bacteria. The highest amylolytic bacteria (isolate L) is related to Bacillus amyloliquefaciens, while the most elevated IAA-producing bacteria (isolate C) is related to Bacillus paramycoides. The highest cell density was produced in treatment III, reaching 2.7 x 106 cells/mL on day 50th. The treatments with supplement bacteria showed a significant effect for accelerating the growth of microalgae compared to control.

Maximizing biomass productivity and cell density of Chlorella vulgaris by using light-emitting diode-based photobioreactor

2012 ◽  
Vol 161 (3) ◽  
pp. 242-249 ◽  
Author(s):  
Weiqi Fu ◽  
Olafur Gudmundsson ◽  
Adam M. Feist ◽  
Gisli Herjolfsson ◽  
Sigurdur Brynjolfsson ◽  
...  
Keyword(s):  
Cell Density ◽  
Chlorella Vulgaris ◽  
Light Emitting Diode ◽  
Biomass Productivity ◽  
Light Emitting

scholarly journals Marine microalgae co-cultured with floc-forming bacterium: Insight into growth and lipid productivity

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11217
Author(s):  
Chin Sze Yee ◽  
Victor Tosin Okomoda ◽  
Fakriah Hashim ◽  
Khor Waiho ◽  
Siti Rozaimah Sheikh Abdullah ◽  
...  
Keyword(s):  
Cell Density ◽  
Chlorella Vulgaris ◽  
Lipid Content ◽  
Lipid Accumulation ◽  
Axenic Culture ◽  
Cell Number ◽  
The Other ◽  
Biomass Growth ◽  
Microalgae Biomass ◽  
Insight Into

This study investigated the effect of co-culturing microalgae with a floc-forming bacterium. Of the six microalgae isolated from a biofloc sample, only Thalassiosira weissflogii, Chlamydomonas sp. and Chlorella vulgaris were propagated successfully in Conway medium. Hence, these species were selected for the experiment comparing microalgae axenic culture and co-culture with the floc-forming bacterium, Bacillus infantis. Results obtained showed that the co-culture had higher microalgae biomass compared to the axenic culture. A similar trend was also observed concerning the lipid content of the microalgae-bacterium co-cultures. The cell number of B. infantis co-cultured with T. weissflogii increased during the exponential stage until the sixth day, but the other microalgae species experienced a significant early reduction in cell density of the bacteria at the exponential stage. This study represents the first attempt at co-culturing microalgae with B. infantis, a floc-forming bacterium, and observed increased biomass growth and lipid accumulation compared to the axenic culture.

Isolation of an indigenous Chlorella vulgaris from swine wastewater and characterization of its nutrient removal ability in undiluted sewage

2017 ◽  
Vol 243 ◽  
pp. 247-253 ◽  
Author(s):  
Yangmin Wen ◽  
Yongjin He ◽  
Xiaowei Ji ◽  
Shaofeng Li ◽  
Ling Chen ◽  
...  
Keyword(s):  
Chlorella Vulgaris ◽  
Nutrient Removal ◽  
Swine Wastewater

Assessment of a tannin-based organic polymer to harvest Chlorella vulgaris biomass from swine wastewater digestate phycoremediation

2014 ◽  
Vol 70 (5) ◽  
pp. 888-894 ◽  
Author(s):  
M. P. Mezzari ◽  
M. L. B. da Silva ◽  
M. Pirolli ◽  
S. Perazzoli ◽  
R. L. R. Steinmetz ◽  
...  
Keyword(s):  
Chlorella Vulgaris ◽  
Biomass Concentration ◽  
Swine Wastewater ◽  
Organic Polymer ◽  
Chlorella Sp ◽  
Flocculation Efficiency ◽  
Jar Test ◽  
Biomass Recovery ◽  
Alternative Choice ◽  
Interesting Alternative

This study investigated the efficiency of an organic tannin polymer alone or amended with polyacrylamide to harvest Chlorella vulgaris biomass grown in a laboratory-scale photobioreactor treating swine wastewater digestate. The effect of biomass concentration, tannin (TAN) dosages and changes in pH were evaluated in jar test experiments. Among the TAN concentrations tested (11, 22, 44, 89, 178 mg L−1), 11 mg L−1 showed the highest biomass recovery (97%). The highest coagulation/ flocculation efficiencies were obtained at pH 5 to 7. Flocculation efficiency improved from 50 to 97% concomitant with the increasing biomass concentrations from 45 to 165 mg L−1, respectively. Recovery efficiencies above 95% were achieved with the same TAN dosage (11 mg L−1) irrespective of the concentration of organic carbon present (75 to 300 mg TOC L−1). Overall, the results suggest that TAN could become an interesting alternative choice of non-toxic organic polymer for harvesting Chlorella sp. from organic-rich wastewater.

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