Journal ArticleDOI
Microalgae as versatile cellular factories for valued products
TLDR
Technology platforms following the principles of bio-refineries shall be established to enable the design of sustainable and economically feasible production of marketable microalgal products.Abstract:
As major part of the phytoplankton, microalgae are pivotal for the global food chain. Their exceptional capacity for CO2-fixation illustrates their indispensable significance to sustain earth's ecosystems. Further, they play a still underestimated role in eliminating contaminants from various environments. In addition to ecological benefit, many microalgal species exhibit high nutritional value and, at the same time, generate valued bio-products: Pigments, lipids, bioactive compounds, certain polysaccharides, bio-hydrogen and even biopolyesters with plastic-like properties have the potential for successful market penetration. Three substantial pigment groups, namely chlorophylls, carotenoids, and phycobilins, are essential for light harvesting and CO2 fixation. Those pigments will most likely undergo quick commercial success in “functional food”, cosmetics, aquaculture, pharmaceuticals, or food technology. Due to often high contents of polyunsaturated fatty acids essential for human metabolism, microalgal oils can be commercialized as health food and in the pharmaceutical and therapeutic field, creating much higher value than by converting them to biofuel. Finally, algal biomass remaining as residue after product recovery can be used as forage, biogas feedstock or biofertilizer. This utilization is needed for balancing the material- and energy cycles of the entire process. Thus, technology platforms following the principles of bio-refineries shall be established to enable the design of sustainable and economically feasible production of marketable microalgal products.read more
Citations
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Journal ArticleDOI
The promising future of microalgae: current status, challenges, and optimization of a sustainable and renewable industry for biofuels, feed, and other products
TL;DR: The present review describes the advantages of microalgae for the production of biofuels and various bioactive compounds and discusses culturing parameters.
Journal ArticleDOI
Astaxanthin-Producing Green Microalga Haematococcus pluvialis: From Single Cell to High Value Commercial Products.
TL;DR: Important and recent developments ranging from cultivation, harvest and postharvest bio-processing technologies to metabolic control and genetic engineering are reviewed in detail, focusing on biomass and astaxanthin production from this biotechnologically important microalga.
Journal ArticleDOI
Commercial astaxanthin production derived by green alga Haematococcus pluvialis: A microalgae process model and a techno-economic assessment all through production line
TL;DR: Astaxanthin is a member of the xanthophyll family of carotenoids and constitutes the highest value product derived by microalgae as mentioned in this paper, and is extracted from the freshwater green microalgal strain Haematococcus pluvialis.
Journal ArticleDOI
Algae as potential feedstock for the production of biofuels and value-added products: Opportunities and challenges
TL;DR: The variety of processes and pathways through which bio-valorization of algal biomass can be performed are described in this review and the biorefinery model and its collaborative approach with various processes are highlighted for the production of eco-friendly, sustainable, and cost-effective biofuels and value-added products.
Journal ArticleDOI
Microalgal Carotenoids: A Review of Production, Current Markets, Regulations, and Future Direction.
Lucie Novoveská,Michael E. Ross,Michele S. Stanley,Rémi Pradelles,Virginie Wasiolek,Jean-François Sassi +5 more
TL;DR: This review provides tools and a broad overview of the regulatory processes of carotenoid production from microalgae and other novel feedstocks for food/feed, nutraceutical and cosmetic industry in Europe, the USA, the People’s Republic of China, and Japan.
References
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Journal ArticleDOI
Biodiesel from microalgae.
TL;DR: As demonstrated here, microalgae appear to be the only source of renewable biodiesel that is capable of meeting the global demand for transport fuels.
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Biofuels from microalgae—A review of technologies for production, processing, and extractions of biofuels and co-products
TL;DR: In this article, the authors reviewed the technologies underpinning microalgae-to-bio-fuels systems, focusing on the biomass production, harvesting, conversion technologies, and the extraction of useful co-products.
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Commercial applications of microalgae
TL;DR: The first use of microalgae by humans dates back 2000 years to the Chinese, who used Nostoc to survive during famine, while future research should focus on the improvement of production systems and the genetic modification of strains.
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Microalgae for oil: strain selection, induction of lipid synthesis and outdoor mass cultivation in a low-cost photobioreactor.
Liliana Rodolfi,Graziella Chini Zittelli,Niccolò Bassi,Giulia Padovani,Natascia Biondi,Gimena Bonini,Mario R. Tredici +6 more
TL;DR: The experiments showed that the eustigmatophyte Nannochloropsis sp.
Journal ArticleDOI
Recovery of microalgal biomass and metabolites: process options and economics
TL;DR: Economics of monoseptic production of microalgae in photobioreactors and the downstream recovery of metabolites are discussed using eicosapentaenoic acid (EPA) recovery as a representative case study.