Department of Drug and Cosmetics Biotechnology, Faculty of Chemistry, Warsaw University of Technology, 00-664 Warsaw, Poland.
Department of Genetics and Applied Microbiology, University of Debrecen, H-4032 Debrecen, Hungary.
Int J Mol Sci. 2023 Apr 20;24(8):7560. doi: 10.3390/ijms24087560.
Whey permeate is categorised as hazardous wastewater for aquatic environments, mainly due to its high lactose content. Therefore, it must be valorised before being released into the environment. One pathway for whey permeate management is its use in biotechnological processes. Herein, we present roads for whey permeate valorisation with the WUT240 strain. The established technology is based on two bioprocesses. During first, 2.5 g/L 2-phenylethanol and fermented plant oils enriched with different flavourings are obtained after 48 h biphasic cultures at 30 °C. The second process leads to a maximum of 75 g ethanol/L (Y = 0.53 g/g) after 96 h at 30 °C. Moreover, established whey permeate valorisation pathways reduced its biochemical oxygen demand and chemical oxygen demand values by 12- to 3-fold, respectively. Together, the present study reports a complete, effective, and environmentally friendly whey permeate management strategy while simultaneously enabling the acquisition of valuable compounds with substantial application potential.
乳清渗透物被归类为对水生环境有危害的废水，主要是由于其高乳糖含量。因此，在排放到环境中之前，必须对其进行增值利用。乳清渗透物管理的一种途径是将其用于生物技术过程。在此，我们提出了利用 WUT240 菌株对乳清渗透物增值利用的途径。该技术的基础是两个生物过程。在第一个过程中，经过 30°C 下 48 小时的双相培养，可以获得 2.5 g/L 的 2-苯乙醇和富含不同风味的发酵植物油。第二个过程在 30°C 下 96 小时后，可获得最高 75 g/L 的乙醇（Y=0.53 g/g）。此外，所建立的乳清渗透物增值利用途径将其生化需氧量和化学需氧量分别降低了 12 至 3 倍。总之，本研究报告了一种完整、有效和环保的乳清渗透物管理策略，同时还能获得具有重要应用潜力的有价值化合物。
