Review: Proposal of the macroalgae cultivation system for bioethanol production by sustainable marine biotechnology

Abstract

To obtain crops effectively for bioethanol production, conventional agriculture uses artificial chemical agents, such as fertilizers, insecticides, and herbicides. Bioethanol contributes to the carbon-neutral strategy; however, ecosystems are affected by these chemicals in agriculture. In a previous study, we reported the development of a yeast strain that can convert macroalgae into ethanol. Because macroalgae have a higher ability to fix CO₂ than terrestrial plants, we aimed to obtain large amounts of macroalgae. Herein, we propose a novel cultivation system for macroalgae using newly developed equipment and methods. Additionally, applicable yeast strains constructed using surface display technology for bioethanol production using living macroalgae are described.