Co-production of 1,3-propanediol and phage phiKpS2 from the glycerol fermentation by Klebsiella pneumoniae
Suyang Duan, Zhirong Zhang, Xiaoli Wang, Yaqin Sun, Yuesheng Dong, Lina Ren, Lili Geng, Zhilong Xiu
Bioresources and Bioprocessing ›› 2024, Vol. 11 ›› Issue (1) : 44.
Co-production of 1,3-propanediol and phage phiKpS2 from the glycerol fermentation by Klebsiella pneumoniae
As an alternative to antibiotics in response to antimicrobial-resistant infections, bacteriophages (phages) are garnering renewed interest in recent years. However, the massive preparation of phage is restricted using traditional pathogens as host cells, which incurs additional costs and contamination. In this study, an opportunistic pathogen, Klebsiella pneumoniae used to convert glycerol to 1,3-propanediol (1,3-PDO), was reused to prepare phage after fermentation. The phage infection showed that the fed-batch fermentation broth containing 71.6 g/L 1,3-PDO can be directly used for preparation of phage with a titer of 1 × 108 pfu/mL. Then, the two-step salting-out extraction was adopted to remove most impurities, e.g. acetic acid (93.5%), ethanol (91.5%) and cells (99.4%) at the first step, and obtain 1,3-PDO (56.6%) in the top phase as well as phage (97.4%) in the middle phase at the second step. This integrated process provides a cheap and environment-friendly manner for coproduction of 1,3-PDO and phage.
Klebsiella pneumonia / 1,3-Propanediol / Bacteriophage / Co-production / Salting-out extraction
|
Ames TT (2002) Process for the isolation of 1, 3-propanediol from fermentation broth. US Patent 6361983
|
|
Cabral J (2007) Cell partitioning in aqueous two-phase polymer systems. Cell Sep 151–171. https://doi.org/10.1007/10_2006_045
|
|
Chen D, Dong YS, Bao YM, Xiu ZL (2023) Salting-out extraction of recombinant κ‐carrageenase and phage T7 released from Escherichia coli cells. Eng Life Sci 2200125. https://doi.org/10.1002/elsc.202200125
|
Chilakamarry CR, Mimi Sakinah A, Zularism A, Khilji IA, Kumarasamy S (2022) Glycerol waste to bio-ethanol: Optimization of fermentation parameters by the Taguchi method. Journal of Chemistry 2022. https://doi.org/10.1155/2022/4892992
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/
〈 |
|
〉 |