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Duan S, Zhang Z, Wang X, Sun Y, Dong Y, Ren L, Geng L, Xiu Z. Co-production of 1,3-propanediol and phage phiKpS2 from the glycerol fermentation by Klebsiella pneumoniae. BIORESOUR BIOPROCESS 2024; 11:44. [PMID: 38722416 PMCID: PMC11082122 DOI: 10.1186/s40643-024-00760-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
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.
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Affiliation(s)
- Suyang Duan
- School of Bioengineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024, P. R. China
| | - Zhirong Zhang
- School of Bioengineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024, P. R. China
| | - Xiaoli Wang
- School of Bioengineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024, P. R. China
| | - Yaqin Sun
- School of Bioengineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024, P. R. China
| | - Yuesheng Dong
- School of Bioengineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024, P. R. China
| | - Lina Ren
- Department of Respiratory, Affiliated Dalian Municipal Central Hospital of Dalian University of Technology, Dalian, 116033, Liaoning, P. R. China
| | - Lili Geng
- Department of Respiratory, Affiliated Dalian Municipal Central Hospital of Dalian University of Technology, Dalian, 116033, Liaoning, P. R. China
| | - Zhilong Xiu
- School of Bioengineering, Dalian University of Technology, Linggong Road 2, Dalian, 116024, P. R. China.
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Sui WB, Huang LS, Wang XL, Zhou X, Sun YQ, Xiu ZL. Extractive adsorption of 1,3-propanediol on a novel polystyrene macroporous resin enclosing medium and long-chain alcohols as extractant. BIORESOUR BIOPROCESS 2023; 10:28. [PMID: 38647882 PMCID: PMC10991625 DOI: 10.1186/s40643-023-00646-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/22/2023] [Indexed: 04/25/2024] Open
Abstract
Extractive adsorption is an integrated separation method employing a novel resin with both particle and liquid characteristics in terms of adsorption and extraction. In this study, the novel extractive adsorption polystyrene-divinylbenzene (PS-DVB) macroporous resin was synthesized by suspension polymerization, in which n-octanol (OL-PS-DVB) or mixed alcohols of n-octanol, undecyl alcohol, and tetradecyl alcohol (MA-PS-DVB) were added as porogen and enclosed in the resin skeleton after the reaction. The characterization of the two novel resins of OL-PS-DVB and MA-PS-DVB showed that they have large specific surface areas of 48.7 and 17.4 m2/g, respectively. Additionally, the two synthesized resins have much higher static adsorption capacities of 1,3-propanediol (511 and 473 mg/g) and dynamic adsorption capacities (312 and 267 mg/g) than traditional resins, because extractants enclosed in the resin can increase the adsorption capacity. Through Langmuir equation, the theoretical static maximum adsorption capacity of the mixed alcohols resin is 515 mg/g at 298 K and Gibbs free energy change of adsorption was -3781 J/mol, indicating that the adsorption process was spontaneous. In addition, the sorbent concentration effect in the resin was generated at high 1,3-propanediol (1,3-PDO) concentrations. The fitting of the Flocculation model can reveal that there is a possible relation between adsorption and flocculation. Compared to OL-PS-DVB, MA-PS-DVB showed better performance in the recovery yield of 1,3-PDO and other byproducts, the removal rates of the inorganic salt and protein, and the efficiency of recycled resin. For MA-PS-DVB, the recovery of 1,3-PDO, butyrate acid, acetic acid, and residual glycerol was 97.1%, 94.7%, 93.3%, and 90.3%, respectively. Simultaneously, the resin of MA-PS-DVB could remove 93.8% of inorganic salts and 90.9% of proteins in the concentrated fermentation broth. The two synthesized resins of OL-PS-DVB and MA-PS-DVB still had 90% or 92% of capacity for extractive adsorption of 1,3-propanediol after 10 times of recycling, which exhibited potential application in the separation of 1,3-propanediol from fermentation broth.
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Affiliation(s)
- Wen-Bo Sui
- School of Bioengineering, Liaoning, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian, People's Republic of China, 116024
| | - Lu-Sheng Huang
- School of Bioengineering, Liaoning, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian, People's Republic of China, 116024
| | - Xiao-Li Wang
- School of Bioengineering, Liaoning, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian, People's Republic of China, 116024
| | - Xu Zhou
- School of Bioengineering, Liaoning, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian, People's Republic of China, 116024
| | - Ya-Qin Sun
- School of Bioengineering, Liaoning, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian, People's Republic of China, 116024.
| | - Zhi-Long Xiu
- School of Bioengineering, Liaoning, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian, People's Republic of China, 116024
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Zhang C, Traitrongsat P, Zeng AP. Electrochemically mediated bioconversion and integrated purification greatly enhanced co-production of 1,3-propanediol and organic acids from glycerol in an industrial bioprocess. Bioprocess Biosyst Eng 2023; 46:565-575. [PMID: 36648555 DOI: 10.1007/s00449-022-02841-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 12/13/2022] [Indexed: 01/18/2023]
Abstract
In this study, we show how electrochemically mediated bioconversion can greatly increase the co-production of 1,3-propanediol and organic acids from glycerol in an industrial bioprocess using a Clostridum pasteurianum mutant. Remarkably, an enhanced butyrate formation was observed due to a weakened butanol pathway of the mutant. This allowed the strain to have a higher ATP generation for an enhanced growth, higher glycerol consumption and PDO production. The PDO titer reached as high as 120.67 g/L at a cathodic current of -400 mA, which is 33% higher than that without electricity, with a concurrent increase of butyric acid by 80%. To fully recover the increased PDO and organic acids, a novel downstream process combining thin film evaporation of PDO and esterification of organic acids with ethanol was developed. This enables the efficient co-production of PDO, ethyl acetate and ethyl butyrate with a high overall carbon use of 87%.
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Affiliation(s)
- Chijian Zhang
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany.,Hua An Tang Biotech Group Co., Ltd, Guangzhou, China
| | - Pawin Traitrongsat
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany
| | - An-Ping Zeng
- Center of Synthetic Biology and Integrated Bioengineering, School of Engineering, Westlake University, Hangzhou, China. .,Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany.
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Tomczak W. The Application of the Nanofiltration Membrane NF270 for Separation of Fermentation Broths. MEMBRANES 2022; 12:1263. [PMID: 36557170 PMCID: PMC9781066 DOI: 10.3390/membranes12121263] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
The potential for nanofiltration (NF) in removing both relatively low molecular weight (MW) organic species and charged solutes from complex media is noteworthy. The main aim of the current work was to improve understanding of the separation mechanisms of fermentation broths components in the NF process. For this purpose, the experimental investigations were performed using the commercial polyamide NF270 membrane. The feed solution was ultrafiltered 1,3-propanediol (1,3-PD) broths. The separation results were analyzed and discussed in light of the detailed characteristics of both the membrane and the broth components. It has been noted that the membrane ensured the complete 1,3-PD permeability and significant rejection of some feed components. A thorough analysis showed that the retention of carboxylic acids was based on both the Donnan effect and sieve mechanism, according to the following order: succinic acid > lactic acid > acetic acid > formic acid. Indeed, acids retention increased with increasing charged acids ions valency, Stokes radius (rS) as well as MW, and decreasing diffusion coefficient (D). In turn, for ions, the following orders retention was determined: SO42− = PO43− > Cl− and Ca2+ > Na+ > NH4+ ~ K+. It indicated that the ions retention increased with increasing ions charge density, hydrated radius (rH), and hydration energy (Eh). It showed that the separation of the ions was based on the Donnan exclusion, sieving effect, and dielectric exclusion.
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Affiliation(s)
- Wirginia Tomczak
- Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, 3 Seminaryjna Street, 85-326 Bydgoszcz, Poland
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Mermejo BDC, Bortolucci J, de Andrade AR, Reginatto V. The Non-solventogenic Clostridium beijerinckii Br21 Produces 1,3-Propanediol From Glycerol With Butyrate as the Main By-Product. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2022. [DOI: 10.3389/fsufs.2022.848022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Ever-increasing biofuel production has raised the supply of glycerol, an abundant waste from ethanolic fermentation and transesterification, for biodiesel production. Glycerol can be a starting material for sustainable production of 1,3-propanediol (1,3 PD), a valued polymer subunit. Here, we compare how Clostridium pasteurianum DSMZ 525, a well-known 1,3-PD-producer, and the non-solventogenic Clostridium beijerinckii Br21 perform during glycerol fermentation. Fermentative assays in 80-, 390-, or 1,100-mM glycerol revealed higher 1,3-PD productivity by DSMZ 525 compared to Br21. The highest 1,3-PD productivities by DSMZ 525 and Br21 were obtained in 390 mM glycerol: 3.01 and 1.70 mM h−1, respectively. Glycerol uptake by the microorganisms differed significantly: C. beijerinckii Br21 consumed 41.1, 22.3, and 16.3%, while C. pasteurianum consumed 93, 44.5, and 14% of the initial glycerol concentration in 80, 390, and 1,100 mM glycerol, respectively. In 1,100 mM glycerol, C. beijerinckii Br21 growth was delayed. Besides 1,3-PD, we detected butyrate and acetate during glycerol fermentation by both strains. However, at 80 mM glycerol, C. beijerinckii Br21 formed only butyrate as the by-product, which could help downstream processing of the 1,3-PD fermentation broth. Therefore, C. beijerinckii Br21, an unexplored biocatalyst so far, can be used to convert glycerol to 1,3-PD and can be applied in biofuel biorefineries.
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Zhang C, Sharma S, Ma C, Zeng AP. Strain evolution and novel downstream processing with integrated catalysis enable highly efficient co-production of 1,3-Propanediol and organic acid esters from crude glycerol. Biotechnol Bioeng 2022; 119:1450-1466. [PMID: 35234295 DOI: 10.1002/bit.28070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/05/2022] [Accepted: 02/20/2022] [Indexed: 11/09/2022]
Abstract
Bioconversion of natural microorganisms generally results in a mixture of various compounds. Downstream processing (DSP) which only targets a single product often lacks economic competitiveness due to incomplete use of raw material and high cost of waste treatment for by-products. Here, we show with the efficient microbial conversion of crude glycerol by an artificially evolved strain and how a catalytic conversion strategy can improve the total products yield and process economy of the DSP. Specifically, Clostridium pasteurianum was first adapted to increased concentration of crude glycerol in a novel automatic laboratory evolution system. At m3 scale bioreactor the strain achieved a simultaneous production of 1,3-propanediol (PDO), acetic and butyric acids at 81.21, 18.72 and 11.09 g/L within only 19 h, respectively, representing the most efficient fermentation of crude glycerol to targeted products. A heterogeneous catalytic step was developed and integrated into the DSP process to obtain high-value methyl esters from acetic and butyric acids at high yields. The co-production of the esters also greatly simplified the recovery of PDO. For example, a cosmetic grade PDO (96% PDO) was easily obtained by a simple single-stage distillation process (with an overall yield more than 77%). This integrated approach provides an industrially attractive route for the simultaneous production of three appealing products from the crude glycerol fermentation broth, which greatly improve the process economy and ecology. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Chijian Zhang
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany.,Hua An Tang Biotech Group Co., Ltd, Guangzhou, China
| | - Shubhang Sharma
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany
| | - Chengwei Ma
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany
| | - An-Ping Zeng
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Hamburg, Germany
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Pan DT, Wang XD, Wang JB, Shi HY, Wang GG, Xiu ZL. Optimization and feedback control system of dilution rate for 1,3-propanediol in two-stage fermentation: A theoretical study. Biotechnol Prog 2021; 38:e3225. [PMID: 34775686 DOI: 10.1002/btpr.3225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/11/2021] [Accepted: 11/11/2021] [Indexed: 11/07/2022]
Abstract
In utilizing glycerol to produce 1,3-propanediol by microbial fermentation, the problems of low utilization rate and poor production performance need to be addressed. Based on the analysis of a mathematical model for 1,3-propanediol production from glycerol by Klebsiella pneumoniae, this study theoretically investigated the effects of the dilution rate and the initial glycerol concentration in a two-stage fermentation process and the feasibility of applying the feedback control methods. First, the optimal operation conditions of initial glycerol concentration and dilution rate were obtained. Through the use of feedback control theory, a control strategy for dilution rate was designed and optimized to shorten the settling time (time required for fermentation to reach stability) from 60.92 to 36.68 h for the first reactor, and from 53.66 to 22.68 h for the second reactor. In addition, the yield of 1,3-propanediol in both two reactors reached up to 0.5 g·g-1 . The simulation results indicated that the feedback control strategy for dilution rate increased the product concentration, reduced the residual glycerol in the fermentation broth, and greatly improved the performance of the fermentation. A feeding strategy of automatic control for dilution rate has been established and will be applied as an effective guiding scheme in automatic continuous fermentations for production of 1,3-propanediol.
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Affiliation(s)
- Duo-Tao Pan
- School of Bioengineering, Dalian University of Technology, Dalian, China.,Chemical Control Technology Key Laboratory of Liaoning Province, Institute of Information and Engineering, Shenyang University of Chemical and Technology, Shenyang, China
| | - Xu-Dong Wang
- School of Bioengineering, Dalian University of Technology, Dalian, China.,College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Jia-Bing Wang
- Shenyang Institute of Science and Technology, Shenyang, China
| | - Hong-Yan Shi
- Chemical Control Technology Key Laboratory of Liaoning Province, Institute of Information and Engineering, Shenyang University of Chemical and Technology, Shenyang, China
| | - Guo-Gang Wang
- Chemical Control Technology Key Laboratory of Liaoning Province, Institute of Information and Engineering, Shenyang University of Chemical and Technology, Shenyang, China
| | - Zhi-Long Xiu
- School of Bioengineering, Dalian University of Technology, Dalian, China
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