1
|
Górska K, Garncarek Z. High-Yield Production of Dihydroxyacetone from Crude Glycerol in Fed-Batch Cultures of Gluconobacter oxydans. Molecules 2024; 29:2932. [PMID: 38930996 PMCID: PMC11206850 DOI: 10.3390/molecules29122932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/14/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
The strain Gluconobacter oxydans LMG 1385 was used for the bioconversion of crude glycerol to dihydroxyacetone. The suitability of fed-batch cultures for the production of dihydroxyacetone was determined, and the influence of the pH of the culture medium and the initial concentration of glycerol on maximizing the concentration of dihydroxyacetone and on the yield and speed of obtaining dihydroxyacetone by bioconversion was examined. The feeding strategy of the substrate (crude glycerol) during the process was based on measuring the dissolved oxygen tension of the culture medium. The highest concentration of dihydroxyacetone PK = 175.8 g·L-1 and the highest yield YP/Sw = 94.3% were obtained when the initial concentration of crude glycerol was S0 = 70.0 g·L-1 and the pH of the substrate was maintained during the process at level 5.0.
Collapse
Affiliation(s)
| | - Zbigniew Garncarek
- Department of Biotechnology and Food Analysis, Wroclaw University of Economics and Business, 53-345 Wroclaw, Poland;
| |
Collapse
|
2
|
Sun Y, Liu T, Nie J, Yan J, Tang J, Jin K, Li C, Li H, Liu Y, Bai Z. Continuous catalytic production of 1,3-dihydroxyacetone: Sustainable approach combining perfusion cultures and immobilized cells. BIORESOURCE TECHNOLOGY 2024; 401:130734. [PMID: 38670288 DOI: 10.1016/j.biortech.2024.130734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/27/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
Currently, the predominant method for the industrial production of 1,3-dihydroxyacetone (DHA) from glycerol involves fed-batch fermentation. However, previous research has revealed that in the biocatalytic synthesis of DHA from glycerol, when the DHA concentration exceeded 50 g·L-1, it significantly inhibited microbial growth and metabolism, posing a challenge in maintaining prolonged and efficient catalytic production of DHA. In this study, a new integrated continuous production and synchronous separation (ICSS) system was constructed using hollow fiber columns and perfusion culture technology. Additionally, a cell reactivation technique was implemented to extend the biocatalytic ability of cells. Compared with fed-batch fermentation, the ICSS system operated for 360 h, yielding a total DHA of 1237.8 ± 15.8 g. The glycerol conversion rate reached 97.7 %, with a productivity of 3.44 g·L-1·h-1, representing 485.0 % increase in DHA production. ICSS system exhibited strong operational characteristics and excellent performance, indicating significant potential for applications in industrial bioprocesses.
Collapse
Affiliation(s)
- Yang Sun
- School of Life Sciences, Henan University, Kaifeng 475004, China; Henan Key Laboratory of Synthetic Biology and Biomanufacturing, Kaifeng 475004, China; Engineering Research Center for Applied Microbiology of Henan Province, Kaifeng 475004, China.
| | - Tang Liu
- School of Life Sciences, Henan University, Kaifeng 475004, China; Henan Key Laboratory of Synthetic Biology and Biomanufacturing, Kaifeng 475004, China; Engineering Research Center for Applied Microbiology of Henan Province, Kaifeng 475004, China.
| | - Jianqi Nie
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Life Sciences and Health Engineering, Jiangnan University, Wuxi 214122, China.
| | - Jie Yan
- School of Life Sciences, Henan University, Kaifeng 475004, China.
| | - Jiacheng Tang
- School of Life Sciences, Henan University, Kaifeng 475004, China; Henan Key Laboratory of Synthetic Biology and Biomanufacturing, Kaifeng 475004, China; Engineering Research Center for Applied Microbiology of Henan Province, Kaifeng 475004, China.
| | - Kuiqi Jin
- Chengdu Yingde Biological Pharmaceutical Equipment Co., Ltd.,Chengdu 610000,China.
| | - Chunyang Li
- Chengdu Yingde Biological Pharmaceutical Equipment Co., Ltd.,Chengdu 610000,China.
| | - Hua Li
- School of Life Sciences, Henan University, Kaifeng 475004, China; Henan Key Laboratory of Synthetic Biology and Biomanufacturing, Kaifeng 475004, China; Engineering Research Center for Applied Microbiology of Henan Province, Kaifeng 475004, China.
| | - Yupeng Liu
- School of Life Sciences, Henan University, Kaifeng 475004, China; Henan Key Laboratory of Synthetic Biology and Biomanufacturing, Kaifeng 475004, China; Engineering Research Center for Applied Microbiology of Henan Province, Kaifeng 475004, China.
| | - Zhonghu Bai
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China.
| |
Collapse
|
3
|
Zhang K, Li M, Wang J, Huang G, Ma K, Peng J, Lin H, Zhang C, Wang H, Zhan T, Sun Z, Zhang X. Optimizing enzyme properties to enhance dihydroxyacetone production via methylglyoxal biosensor development. Microb Cell Fact 2024; 23:153. [PMID: 38796416 PMCID: PMC11127321 DOI: 10.1186/s12934-024-02393-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 04/16/2024] [Indexed: 05/28/2024] Open
Abstract
BACKGROUND Dihydroxyacetone (DHA) stands as a crucial chemical material extensively utilized in the cosmetics industry. DHA production through the dephosphorylation of dihydroxyacetone phosphate, an intermediate product of the glycolysis pathway in Escherichia coli, presents a prospective alternative for industrial production. However, insights into the pivotal enzyme, dihydroxyacetone phosphate dephosphorylase (HdpA), remain limited for informed engineering. Consequently, the development of an efficient tool for high-throughput screening of HdpA hypermutants becomes imperative. RESULTS This study introduces a methylglyoxal biosensor, based on the formaldehyde-responding regulator FrmR, for the selection of HdpA. Initial modifications involved the insertion of the FrmR binding site upstream of the -35 region and into the spacer region between the -10 and -35 regions of the constitutive promoter J23110. Although the hybrid promoter retained constitutive expression, expression of FrmR led to complete repression. The addition of 350 μM methylglyoxal promptly alleviated FrmR inhibition, enhancing promoter activity by more than 40-fold. The methylglyoxal biosensor system exhibited a gradual increase in fluorescence intensity with methylglyoxal concentrations ranging from 10 to 500 μM. Notably, the biosensor system responded to methylglyoxal spontaneously converted from added DHA, facilitating the separation of DHA producing and non-producing strains through flow cytometry sorting. Subsequently, the methylglyoxal biosensor was successfully applied to screen a library of HdpA mutants, identifying two strains harboring specific mutants 267G > T and D110G/G151C that showed improved DHA production by 68% and 114%, respectively. Expressing of these two HdpA mutants directly in a DHA-producing strain also increased DHA production from 1.45 to 1.92 and 2.29 g/L, respectively, demonstrating the enhanced enzyme properties of the HdpA mutants. CONCLUSIONS The methylglyoxal biosensor offers a novel strategy for constructing genetically encoded biosensors and serves as a robust platform for indirectly determining DHA levels by responding to methylglyoxal. This property enables efficiently screening of HdpA hypermutants to enhance DHA production.
Collapse
Affiliation(s)
- Kaibo Zhang
- School of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, Jilin, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Mengying Li
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- College of Biotechnology, Tianjin University of Sciences and Technology, Tianjin, 300457, China
| | - Jinsheng Wang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Guozhong Huang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China
| | - Kang Ma
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- College of Biotechnology, Tianjin University of Sciences and Technology, Tianjin, 300457, China
| | - Jiani Peng
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- Bioengineering College, Chongqing University, Chongqing, 400044, China
| | - Haoyue Lin
- School of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, Jilin, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Chunjie Zhang
- School of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, Jilin, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - Honglei Wang
- School of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, Jilin, China.
| | - Tao Zhan
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
| | - Zhe Sun
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China.
| | - Xueli Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China.
| |
Collapse
|
4
|
Wang H, Li H, Lee CK, Mat Nanyan NS, Tay GS. A systematic review on utilization of biodiesel-derived crude glycerol in sustainable polymers preparation. Int J Biol Macromol 2024; 261:129536. [PMID: 38278390 DOI: 10.1016/j.ijbiomac.2024.129536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/08/2024] [Accepted: 01/14/2024] [Indexed: 01/28/2024]
Abstract
With the rapid development of biodiesel, biodiesel-derived glycerol has become a promising renewable bioresource. The key to utilizing this bioresource lies in the value-added conversion of crude glycerol. While purifying crude glycerol into a pure form allows for diverse applications, the intricate nature of this process renders it costly and environmentally stressful. Consequently, technology facilitating the direct utilization of unpurified crude glycerol holds significant importance. It has been reported that crude glycerol can be bio-transformed or chemically converted into high-value polymers. These technologies provide cost-effective alternatives for polymer production while contributing to a more sustainable biodiesel industry. This review article describes the global production and quality characteristics of biodiesel-derived glycerol and investigates the influencing factors and treatment of the composition of crude glycerol including water, methanol, soap, matter organic non-glycerol, and ash. Additionally, this review also focused on the advantages and challenges of various technologies for converting crude glycerol into polymers, considering factors such as the compatibility of crude glycerol and the control of unfavorable factors. Lastly, the application prospect and value of crude glycerol conversion were discussed from the aspects of economy and environmental protection. The development of new technologies for the increased use of crude glycerol as a renewable feedstock for polymer production will be facilitated by the findings of this review, while promoting mass market applications.
Collapse
Affiliation(s)
- Hong Wang
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang USM 11800, Malaysia
| | - Hongpeng Li
- Tangshan Jinlihai Biodiesel Co. Ltd., 063000 Tangshan, China
| | - Chee Keong Lee
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang USM 11800, Malaysia; School of Industrial Technology, Universiti Sains Malaysia, Penang USM 11800, Malaysia
| | - Noreen Suliani Mat Nanyan
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang USM 11800, Malaysia; School of Industrial Technology, Universiti Sains Malaysia, Penang USM 11800, Malaysia
| | - Guan Seng Tay
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang USM 11800, Malaysia; Green Biopolymer, Coatings & Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang USM 11800, Malaysia.
| |
Collapse
|
5
|
Ripoll M, Soriano N, Ibarburu S, Dalies M, Mulet AP, Betancor L. Bacteria-Polymer Composite Material for Glycerol Valorization. Polymers (Basel) 2023; 15:polym15112514. [PMID: 37299313 DOI: 10.3390/polym15112514] [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: 03/20/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 06/12/2023] Open
Abstract
Bacterial immobilization is regarded as an enabling technology to improve the stability and reusability of biocatalysts. Natural polymers are often used as immobilization matrices but present certain drawbacks, such as biocatalyst leakage and loss of physical integrity upon utilization in bioprocesses. Herein, we prepared a hybrid polymeric matrix that included silica nanoparticles for the unprecedented immobilization of the industrially relevant Gluconobacter frateurii (Gfr). This biocatalyst can valorize glycerol, an abundant by-product of the biodiesel industry, into glyceric acid (GA) and dihydroxyacetone (DHA). Different concentrations of siliceous nanosized materials, such as biomimetic Si nanoparticles (SiNps) and montmorillonite (MT), were added to alginate. These hybrid materials were significantly more resistant by texture analysis and presented a more compact structure as seen by scanning electron microscopy. The preparation including 4% alginate with 4% SiNps proved to be the most resistant material, with a homogeneous distribution of the biocatalyst in the beads as seen by confocal microscopy using a fluorescent mutant of Gfr. It produced the highest amounts of GA and DHA and could be reused for up to eight consecutive 24 h reactions with no loss of physical integrity and negligible bacterial leakage. Overall, our results indicate a new approach to generating biocatalysts using hybrid biopolymer supports.
Collapse
Affiliation(s)
- Magdalena Ripoll
- Department of Biotechnology, Universidad ORT Uruguay, Mercedes 1237, Montevideo 11100, Uruguay
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Av. Gral. Flores 2124, Montevideo 11800, Uruguay
| | - Nicolás Soriano
- Department of Biotechnology, Universidad ORT Uruguay, Mercedes 1237, Montevideo 11100, Uruguay
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Av. Gral. Flores 2124, Montevideo 11800, Uruguay
| | - Sofía Ibarburu
- Department of Biotechnology, Universidad ORT Uruguay, Mercedes 1237, Montevideo 11100, Uruguay
| | - Malena Dalies
- Department of Biotechnology, Universidad ORT Uruguay, Mercedes 1237, Montevideo 11100, Uruguay
| | - Ana Paula Mulet
- Department of Biotechnology, Universidad ORT Uruguay, Mercedes 1237, Montevideo 11100, Uruguay
| | - Lorena Betancor
- Department of Biotechnology, Universidad ORT Uruguay, Mercedes 1237, Montevideo 11100, Uruguay
| |
Collapse
|
6
|
New perspectives into Gluconobacter-catalysed biotransformations. Biotechnol Adv 2023; 65:108127. [PMID: 36924811 DOI: 10.1016/j.biotechadv.2023.108127] [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: 10/22/2022] [Revised: 03/02/2023] [Accepted: 03/08/2023] [Indexed: 03/17/2023]
Abstract
Different from other aerobic microorganisms that oxidise carbon sources to water and carbon dioxide, Gluconobacter catalyses the incomplete oxidation of various substrates with regio- and stereoselectivity. This ability, as well as its capacity to release the resulting products into the reaction media, place Gluconobacter as a privileged member of a non-model microorganism class that may boost industrial biotechnology. Knowledge of new technologies applied to Gluconobacter has been piling up in recent years. Advancements in its genetic modification, application of immobilisation tools and careful designs of the transformations, have improved productivities and stabilities of Gluconobacter strains or enabled new bioconversions for the production of valuable marketable chemicals. In this work, the latest advancements applied to Gluconobacter-catalysed biotransformations are summarised with a special focus on recent available tools to improve them. From genetic and metabolic engineering to bioreactor design, the most recent works on the topic are analysed in depth to provide a comprehensive resource not only for scientists and technologists working on/with Gluconobacter, but for the general biotechnologist.
Collapse
|
7
|
Zeng W, Shan X, Liu L, Zhou J. Efficient 1,3-dihydroxyacetone biosynthesis in Gluconobacter oxydans using metabolic engineering and a fed-batch strategy. BIORESOUR BIOPROCESS 2022; 9:121. [PMID: 38647819 PMCID: PMC10992570 DOI: 10.1186/s40643-022-00610-7] [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: 08/25/2022] [Accepted: 11/13/2022] [Indexed: 11/28/2022] Open
Abstract
1,3-Dihydroxyacetone (DHA) is a commercially important chemical and widely used in cosmetics, pharmaceuticals, and food industries as it prevents excessive water evaporation, and provides anti-ultraviolet radiation protection and antioxidant activity. Currently, the industrial production of DHA is based on a biotechnological synthetic route using Gluconobacter oxydans. However, achieving higher production requires more improvements in the synthetic process. In this study, we compared DHA synthesis levels in five industrial wild-type Gluconobacter strains, after which the G. oxydans WSH-003 strain was selected. Then, 16 dehydrogenase genes, unrelated to DHA synthesis, were individually knocked out, with one strain significantly enhancing DHA production, reaching 89.49 g L-1 and 42.27% higher than the wild-type strain. By optimizing the culture media, including seed culture and fermentation media, DHA production was further enhanced. Finally, using an established fed-batch fermentation system, DHA production reached 198.81 g L-1 in a 5 L bioreactor, with a glycerol conversion rate of 82.84%.
Collapse
Affiliation(s)
- Weizhu Zeng
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
- School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
- Engineering Research Center of Ministry of Education On Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
- Jiangsu Provisional Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
| | - Xiaoyu Shan
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
- School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
- Engineering Research Center of Ministry of Education On Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
| | - Li Liu
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
- School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
- Jiangsu Provisional Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China
| | - Jingwen Zhou
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
- School of Biotechnology and Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
- Engineering Research Center of Ministry of Education On Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
- Jiangsu Provisional Research Center of Food Synthetic Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, China.
| |
Collapse
|
8
|
da Silva GAR, Oliveira SSDS, Lima SF, do Nascimento RP, Baptista ARDS, Fiaux SB. The industrial versatility of Gluconobacter oxydans: current applications and future perspectives. World J Microbiol Biotechnol 2022; 38:134. [PMID: 35688964 PMCID: PMC9187504 DOI: 10.1007/s11274-022-03310-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 05/13/2022] [Indexed: 11/26/2022]
Abstract
Gluconobacter oxydans is a well-known acetic acid bacterium that has long been applied in the biotechnological industry. Its extraordinary capacity to oxidize a variety of sugars, polyols, and alcohols into acids, aldehydes, and ketones is advantageous for the production of valuable compounds. Relevant G. oxydans industrial applications are in the manufacture of L-ascorbic acid (vitamin C), miglitol, gluconic acid and its derivatives, and dihydroxyacetone. Increasing efforts on improving these processes have been made in the last few years, especially by applying metabolic engineering. Thereby, a series of genes have been targeted to construct powerful recombinant strains to be used in optimized fermentation. Furthermore, low-cost feedstocks, mostly agro-industrial wastes or byproducts, have been investigated, to reduce processing costs and improve the sustainability of G. oxydans bioprocess. Nonetheless, further research is required mainly to make these raw materials feasible at the industrial scale. The current shortage of suitable genetic tools for metabolic engineering modifications in G. oxydans is another challenge to be overcome. This paper aims to give an overview of the most relevant industrial G. oxydans processes and the current strategies developed for their improvement.
Collapse
Affiliation(s)
- Gabrielle Alves Ribeiro da Silva
- Graduate Program in Science and Biotechnology, Biology Institute, Fluminense Federal University (UFF), Niterói-RJ, 24020-141, Brazil.
- Microbial Technology Laboratory, Pharmaceutical Technology Department, Faculty of Pharmacy, Fluminense Federal University (UFF), Niterói-RJ, 24241-000, Brazil.
- Ecology of Microbial Process Laboratory, Biochemical Engineering Department, Chemical School, Technology Center, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro-RJ, 21941-909, Brazil.
| | - Simone Santos de Sousa Oliveira
- Graduate Program in Science and Biotechnology, Biology Institute, Fluminense Federal University (UFF), Niterói-RJ, 24020-141, Brazil
- Microbial Technology Laboratory, Pharmaceutical Technology Department, Faculty of Pharmacy, Fluminense Federal University (UFF), Niterói-RJ, 24241-000, Brazil
| | - Sara Fernandes Lima
- Microbial Technology Laboratory, Pharmaceutical Technology Department, Faculty of Pharmacy, Fluminense Federal University (UFF), Niterói-RJ, 24241-000, Brazil
| | - Rodrigo Pires do Nascimento
- Ecology of Microbial Process Laboratory, Biochemical Engineering Department, Chemical School, Technology Center, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro-RJ, 21941-909, Brazil
| | - Andrea Regina de Souza Baptista
- Center for Microorganisms Investigation, Microbiology and Parasitology Department, Biomedical Institute, Fluminense Federal University (UFF), Niterói-RJ, 24020-141, Brazil
| | - Sorele Batista Fiaux
- Microbial Technology Laboratory, Pharmaceutical Technology Department, Faculty of Pharmacy, Fluminense Federal University (UFF), Niterói-RJ, 24241-000, Brazil
| |
Collapse
|
9
|
Liu Y, Zhong B, Lawal A. Recovery and utilization of crude glycerol, a biodiesel byproduct. RSC Adv 2022; 12:27997-28008. [PMID: 36320273 PMCID: PMC9523763 DOI: 10.1039/d2ra05090k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 09/15/2022] [Indexed: 11/21/2022] Open
Abstract
Biodiesel production has increased significantly in the past decade because it has been demonstrated to be a viable alternative and renewable fuel. Consequently, the production of crude glycerol, the main byproduct of the transesterification of lipids to biodiesel, has risen as well. Therefore, the effective recovery and utilization of crude glycerol can provide biodiesel with additional value. In this review, we first summarized the state-of-the-art progress on crude glycerol recovery and purification. Subsequently, numerous approaches have been reviewed for the utilization of crude glycerol, including use as animal feeds, for combustion, anaerobic fermentation, and chemical conversion. Finally, an extensive discussion and outlook is presented in relation to the techniques and processes in the chemical conversion of crude glycerol. In this review, we summarize the latest technologies for the recovery and purification of crude glycerol and applications of crude glycerol, with focus on its chemical conversion.![]()
Collapse
Affiliation(s)
- Yujia Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Biqi Zhong
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Adeniyi Lawal
- New Jersey Center for MicroChemical Systems, Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, NJ 07030, USA
| |
Collapse
|