Study on the safe disposal and resource utilization of cyanobacterial bloom biomass in Dianchi Lake, China

The “Bright Side” of Cyanobacteria: Revising the Nuisance Potential and Prospecting Innovative Biotechnology-Based Solutions to Integrate Water Management Programs

“…These cyanotoxins can be used as biocides due to their allelopathic character, with application in algaecides, herbicides, and insecticides; 112,113 high valorization potential can be illustrated by, e.g., the selling of microcystin-LF (6−9 μg mL −1 ) by €514 mL −1 (www.sigmaaldrich.com; accessed April 1, 2021). It is worth noting in this context that there is at least one example of the successful separation of microcystins from phycocyanin using a natural bloom as a source of biomass, 114 which reinforces the suitability of extracting valuable compounds even when toxins contaminate the raw biomass. If the biomass is potentially toxin-free, other uses can be immediately equated (see section 5 for an overview) complying with the applicable regulation within each market envisioned.…”

“…The safety limits that should withstand for cyanotoxins in the collected biomass can be generally interpreted from those suggested by WHO for recreational waters. Still, the requirements of each application should tune the definition of each specific set of limits, accounting to the planned processing stages since some of the steps involved (e.g., heat treatment, pH, use of specific solvents) can possibly inactivate some cyanotoxins or even allow the successful separation of the toxins from the target product extracted …”

“…Still, the requirements of each application should tune the definition of each specific set of limits, accounting to the planned processing stages since some of the steps involved (e.g., heat treatment, pH, use of specific solvents) can possibly inactivate some cyanotoxins or even allow the successful separation of the toxins from the target product extracted. 114 Once the biomass is characterized, the basic conditions are set for selling it to the most suitable company. A myriad of companies is available (see section 6) and, according to their industrial processes, biomass will be processed and transformed to different products that can then enter in the value chain (Step 3).…”

Evaluation of Cyanobacterial Bloom from Lake Taihu as a Protein Substitute in Fish Diet—A Case Study on Tilapia

“…A review documented that as of 2016, Microcystis had been recorded in at least 108 countries [ 6 ]. Therefore, efforts have been made throughout the world to control, prevent, and mitigate cyanobacterial bloom, and cost-effective methods have been developed to reduce the risks [ 7 , 8 , 9 , 10 ]. For example, mechanical collection of cyanobacterial bloom is the most direct and effective strategy [ 11 , 12 ].…”