The use of natural infochemicals for sustainable and efficient harvesting of the microalgae Scenedesmus spp. for biotechnology: insights from a meta-analysis.
Biotechnol Lett
; 38(12): 1983-1990, 2016 Dec.
Article
em En
| MEDLINE
| ID: mdl-27565669
ABSTRACT
Open raceway ponds are regarded as the most economically viable option for large-scale cultivation of microalgae for low to mid-value bio-products, such as biodiesel. However, improvements are required including reducing the costs associated with harvesting biomass. There is now a growing interest in exploiting natural ecological processes within biotechnology. We review how chemical cues produced by algal grazers induce colony formation in algal cells, which subsequently leads to their sedimentation. A statistical meta-analysis of more than 80 studies reveals that Daphnia grazers can induce high levels of colony formation and sedimentation in Scenedesmus obliquus and that these natural, infochemical induced sedimentation rates are comparable to using commercial chemical equivalents. These data suggest that natural ecological interactions can be co-opted in biotechnology as part of a promising, low energy and clean harvesting method for use in large raceway systems.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Biotecnologia
/
Scenedesmus
/
Microalgas
Tipo de estudo:
Systematic_reviews
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article