Details

Autor(en) / Beteiligte

• Sreeharsha, Rachapudi Venkata
• Mohan, S. Venkata

Titel

Obscure yet Promising Oleaginous Yeasts for Fuel and Chemical Production

Ist Teil von

• Trends in biotechnology (Regular ed.), 2020-08, Vol.38 (8), p.873-887

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• The rapid depletion of petroleum-based fossil fuels has led to the development of alternative fuel and energy solutions from renewable resources. Lipid-derived oleochemicals and sugar-derived bioethanol were initially produced from plant feedstocks, but in the interest of agricultural land conservation and food security, the focus has now shifted toward so-called ‘third-generation feedstocks’, of which yeasts are a major component. The quest to identify economically lucrative bioprocesses has led to the identification of several nonconventional oleaginous yeast species that have certain advantages over existing model species. Here, we review such underexplored oleaginous yeast species and discuss their potential bioeconomy applications. We also provide a broader perspective on possible avenues for strain improvement to reduce the cost of lipid production. Generating carbon neutral fuels from oleaginous yeasts by utilizing waste feedstock as carbon sources in a circular economy is gaining importance.Recently, several nonconventional oleaginous yeast species with high lipid production efficiency were identified as potential platforms for oleochemical production.These nonconventional yeasts can use the waste feedstocks and feed on broader sugar ranges. They can also coproduce value-added chemicals in addition to lipids.Nevertheless, the genetic resources and other metabolic features of these nonconventional yeast strains need further characterization.The cost of bioprocessing will be minimized through exploration of new oleaginous yeast strains, process optimization, and strain improvement strategies.