A critical overview of upstream cultivation and downstream processing of algae-based biofuels: Opportunity, technological barriers and future perspective


Ahmad S., Iqbal K., Kothari R., Singh H. M., SARI A., Tyagi V.

Journal of Biotechnology, vol.351, pp.74-98, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Review
  • Volume: 351
  • Publication Date: 2022
  • Doi Number: 10.1016/j.jbiotec.2022.03.015
  • Journal Name: Journal of Biotechnology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Compendex, EMBASE, Environment Index, Food Science & Technology Abstracts, INSPEC, MEDLINE, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.74-98
  • Keywords: Microalgae, Upstream and downstream processes, Value-added products, Biofuel, Carbon dioxide, SUPERCRITICAL-FLUID EXTRACTION, OLEAGINOUS CHLORELLA SP, WASTE-WATER TREATMENT, HIGH-VALUE PRODUCTS, BIODIESEL PRODUCTION, MICROALGAE CULTIVATION, IONIC LIQUID, NUTRIENT REMOVAL, LIPID EXTRACTION, CARBON-DIOXIDE
  • Karadeniz Technical University Affiliated: Yes

Abstract

© 2022 Elsevier B.V.Fossil fuels are sharing a large portion of energy demand. Conventional energy sources emit a huge amount of greenhouse gas into the atmosphere, which creates energy and environmental challenges for the ecosystem. To fulfill the world energy demand and to support environmental as well as economic development in a sustainable way, with the utilization of technological advancement of renewable energy resources, algae are presently believed as most adaptable feedstock materials for bioenergy production. Algae has a high fixation rate of atmospheric carbon dioxide which supports to fast growth rate with high productivity per unit area in the form of renewable algal biomass. The present article aims to elaborate on the three generations of biofuels, sustainable microalgae biomass production, cultivation systems, and a wide range of growth parameters. The microalgae harvesting methods and their challenges are also discussed, with a special focus on lipid extraction methods and future r recommendations. The upstream and downstream processes of microalgae could help to harness the microalgae energy in an eco-friendly manner and will help in achieving overall sustainable development.