In the present work, the flocculation efficiency of cationic starch (Greenfloc 120) was tested on the fresh water microalga Chlorella protothecoides under different conditions (pH and flocculant concentrations). Different concentrations of Greenfloc 120 (0, 2.5, 5, 10, 20, 40 mg L(-1)) were screened against different algal densities (0.44, 0.56 and 0.77 g L(-1)). Once the optimal flocculation concentration had been established (40 mg L(-1) for all different biomasses densities) a more detailed analysis was performed in order to investigate if different pH (4.0, 7.7, and 10.0) could increase the flocculation efficiency of cationic starch. Highest flocculation efficiency without addition of Greenfloc 120 was obtained at pH 10, while in the presence of flocculant, the efficiency increased for all the tested pH values, with a maximum of 98% for pH 7.7 and 10. Cationic starch confirmed to be as an easy to use, efficient and cost-effective flocculant for harvesting of microalgae.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2014.06.014 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A β-cyclodextrin-based supramolecular modular system creating micellar carriers for codelivery of doxorubicin and siRNA for potential combined chemotherapy and immunotherapy.
Carbohydr Polym
March 2025
Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; National University of Singapore (Suzhou) Research Institute, Suzhou, Jiangsu 215123, China; National University of Singapore (Chongqing) Research Institute, Yubei, Chongqing 401120, China; NUS Environmental Research Institute (NERI), National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Singapore. Electronic address:
The combination of chemotherapy and gene therapy holds promise in treating cancer. A key strategy is to use small interfering RNAs (siRNAs) to silence programmed death-ligand 1 (PD-L1) expression in cancer cells, disrupting tumor immune evasion and enhancing anticancer treatments, particularly when used in conjunction with chemotherapy drugs such as doxorubicin (Dox). However, effective codelivery of drugs and genes requires carefully designed carriers and complex synthesis procedures.
View Article and Find Full Text PDFEvaluation of the actinia-shaped composite coagulant for removal of algae in water: Role of charge density.
J Hazard Mater
January 2025
State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China. Electronic address:
A series of novel cationic modified actinia-shaped composite coagulant (AMS-C), with similar tentacle length and distribution but different charge density (CD), was successfully designed and fabricated by combination of a cationic graft starch and attapulgite (ATP). AMS-C shows a high efficiency in coagulative removal of Microcystis aeruginosa from water over a wide pH range. The algae-harvesting efficiency of optimized AMS-C can reach to 92.
View Article and Find Full Text PDFDesigning sustainable soil conditioners: Nanocomposite-based thermoplastic starch for enhanced soil health and crop performance.
Int J Biol Macromol
January 2025
Science and Technology Center for Sustainability (CCTS), Federal University of São Carlos (UFSCar), João Leme dos Santos, km 110, 18052-780 Sorocaba, SP, Brazil. Electronic address:
The growing demand for sustainable solutions in agriculture, driven by global population growth and increasing soil degradation, has intensified the search for sustainable soil conditioners. This study investigated the impact of adding nanoclay (NC) and nano lignin (NL) to thermoplastic starch (TPS) on its physical, chemical, and thermal properties, its effectiveness as a soil conditioner, and its resistance to UV-C degradation. TPS nanocomposites were prepared with varying NC (3 %, 5 %, 7 %) and NL (0.
View Article and Find Full Text PDFTargeted enamel remineralization with mineral-loaded starch particles.
JADA Found Sci
November 2024
GreenMark Biomedical Inc, East Lansing and Ann Arbor, MI.
Background: Noninvasive caries treatments work topically, which may limit efficacy. The authors hypothesized that an alternative approach using mineral-loaded particles designed to target the subsurface of noncavitated caries lesions could be advantageous. This study shows in vitro proof-of-concept.
View Article and Find Full Text PDFLifespan and bioactivity improvement of bacteriophages immobilized on carboxymethylcellulose - Cationic starch-coated paper for food packaging.
Int J Biol Macromol
December 2024
Innovation Institute in Ecomaterials, Ecoproduct and Ecoenergy biomass based, University of Québec at Trois-Rivières (I2E3, UQTR), Trois-Rivières, QC G8Z 4M3, Canada.
Bacteriophages (phages) have a great potential to target specifically foodborne bacterial pathogens, particularly in packaging materials. However, incorporating phages into packaging surfaces requires stabilizing their structure and maintaining their infectivity during the papermaking process. In this study, several coating formulations containing various ratios of carboxymethyl cellulose, cationic starch, and glycerol were applied to a base paper to assess phage stability.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!