Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.
Centre for Transportation Systems (CTRANS), Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.
Environ Sci Pollut Res Int. 2019 Jun;26(17):16952-16973. doi: 10.1007/s11356-019-05138-6. Epub 2019 Apr 27.
Oleaginous microalgae and yeast are the two major propitious factories which are sustainable sources for biodiesel production, as they can accumulate high quantities of lipids inside their bodies. To date, various microalgal and yeast species have been exploited singly for biodiesel production. However, despite the ongoing efforts, their low lipid productivity and the high cost of cultivation are still the major bottlenecks hindering their large-scale deployment. Co-culturing of microalgae and yeast has the potential to increase the overall lipid productivity by minimizing its production cost as both these organisms can utilize each other's by-products. Microalgae act as an O generator for yeast while consuming the CO and organic acids released by the yeast cells. Further, yeast can break complex sugars in the medium, which can then be utilized by microalgae thereby opening new options for copious and low-cost feedstocks such as agricultural residues. The current review provides a historical and technical overview of the existing studies on co-culturing of yeast and microalgae and elucidates the crucial factors that affect the symbiotic relationship between these two organisms. Furthermore, the review also highlighted the advantages and the future perspectives for paving a path towards a sustainable biodiesel product.
产油微藻和酵母是生物柴油生产的两个主要有利工厂，因为它们可以在体内积累大量的油脂。迄今为止，已经单独开发了各种微藻和酵母物种用于生物柴油生产。然而，尽管正在进行各种努力，但它们的低油脂生产力和高培养成本仍然是阻碍其大规模应用的主要瓶颈。微藻和酵母的共培养有可能通过最小化生产成本来提高整体油脂生产力，因为这两种生物都可以利用彼此的副产品。微藻作为酵母的 O 发生器，同时消耗酵母细胞释放的 CO 和有机酸。此外，酵母可以分解培养基中的复杂糖，然后被微藻利用，从而为大量廉价的原料（如农业废弃物）开辟了新的选择。本综述提供了关于酵母和微藻共培养的现有研究的历史和技术概述，并阐明了影响这两种生物之间共生关系的关键因素。此外，该综述还强调了为可持续生物柴油产品铺平道路的优势和未来展望。
