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Zhao L, Pan J, Ding Y, Cai S, Cai T, Chen L, Ji XM. Coupling continuous poly(3-hydroxybutyrate) synthesis with piperazine-contained wastewater treatment: Fermentation performance and microbial contamination deciphering. Int J Biol Macromol 2023; 226:1523-1532. [PMID: 36455823 DOI: 10.1016/j.ijbiomac.2022.11.264] [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: 10/12/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
Abstract
Open poly(3-hydroxybutyrate) (PHB) fermentation is of great potential, and batch PHB synthesis with piperazine as the nitrogen switch has been realized. However, it is vital to explore the feasibility of continuous PHB fermentation with piperazine-contained wastewater remediation collaboratively. Here, an aerobic membrane bioreactor was constructed for consecutive PHB synthesis. The removal efficiency of piperazine decreased from 100 % to 82.6 % after three cycles, meanwhile, the PHB concentration was 0.39 g·L-1, 0.18 g·L-1, and undetected for each cycle. Microbial community analysis showed that Proteobacteria, Actinobacteriota, and Bacteroidota were the main contaminating microbes. Furthermore, three metagenome-assembled genomes related to Flavobacterium collumnare, Herbaspirillum aquaticum, and Microbacterium enclense were identified as the dominant contaminating strains. These microbes obtained nitrogenous substrates transformed by Paracoccus sp. TOH, such as amino acids and dissolved organic matter, as nutrient for accumulation. This study verified the practicability of coupling continuous PHB synthesis with industrial wastewater treatment and revealed the derivation mechanism of contaminating species, which could provide a reference for the targeted nitrogen release gene knockout of functional PHB fermentation chassis.
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Affiliation(s)
- Leizhen Zhao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiachen Pan
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yi Ding
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shu Cai
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, United States
| | - Tianming Cai
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Liwei Chen
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Xiao-Ming Ji
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
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2
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Zhao L, Cai S, Zhang J, Zhang Q, Chen L, Ji X, Zhang R, Cai T. Poly(3-hydroxybutyrate) biosynthesis under non-sterile conditions: Piperazine as nitrogen substrate control switch. Int J Biol Macromol 2022; 209:1457-1464. [PMID: 35461873 DOI: 10.1016/j.ijbiomac.2022.04.122] [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: 02/24/2022] [Revised: 04/14/2022] [Accepted: 04/17/2022] [Indexed: 11/16/2022]
Abstract
Poly(3-hydroxybutyrate) (PHB), as a kind of bioplastics for sustainable development, can be synthesized by various microorganisms, however, the high cost of its microbial fermentation is a challenge for its large-scale application. In this study, piperazine degrading strain, Paracoccus sp. TOH, was developed as an excellent chassis for open PHB fermentation with piperazine as controlling element. Whole-genome analysis showed that TOH possesses multi-substrate metabolic pathways to synthesize PHB. Next, TOH could achieve a maximum PHB concentration of 2.42 g L-1, representing a yield of 0.36 g-PHB g-1-glycerol when C/N ratio was set as 60:1 with 10 g L-1 glycerol as substrate. Furthermore, TOH could even synthesize 0.39 g-PHB g-1-glycerol under non-sterile conditions when piperazine was fed with a suitable rate of 1 mg L-1 h-1. 16S rRNA gene sequencing analysis showed that microbial contamination could be effectively inhibited through the regulation of piperazine under non-sterile conditions and TOH dominated the microbial community with a relative abundance of 72.3% at the end of the operational period. This study offers an inspired open PHB fermentation system with piperazine as the control switch, which will realize the goal of efficient industrial biotechnology as well as industrial wastewater treatment.
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Affiliation(s)
- Leizhen Zhao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Shu Cai
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, United States
| | - Jiaqi Zhang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qi Zhang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Liwei Chen
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaoming Ji
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Ruihong Zhang
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, United States
| | - Tianming Cai
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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3
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Chen HJ, Dai FJ, Chen CY, Fan SL, Zheng JH, Huang YC, Chau CF, Lin YS, Chen CS. Evaluating the Antioxidants, Whitening and Antiaging Properties of Rice Protein Hydrolysates. Molecules 2021; 26:molecules26123605. [PMID: 34204643 PMCID: PMC8231118 DOI: 10.3390/molecules26123605] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/03/2021] [Accepted: 06/08/2021] [Indexed: 11/16/2022] Open
Abstract
Plant-derived protein hydrolysates have potential applications in nutrition. Rice protein hydrolysates (RPHs), an excellent source of proteins, have attracted attention for the development of cosmeceuticals. However, few studies have reported the potential application of RPH in analysis, and this study examined their antioxidant activities and the inhibitory activities of skin aging enzymes. The results indicated that the total phenolic and flavonoid concentrations were 2.06 ± 0.13 mg gallic acid equivalent/g RPHs and 25.96 ± 0.52 µg quercetin equivalent/g RPHs, respectively. RPHs demonstrated dose-dependent activity for scavenging free radicals from 1,1-diphenyl-2-picrylhydrazyl [half-maximal inhibitory concentration (IC50) = 42.58 ± 2.1 mg/g RPHs] and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (IC50 = 2.11 ± 0.88 mg/g RPHs), dose-dependent reduction capacity (6.95 ± 1.40 mg vitamin C equivalent/g RPHs) and oxygen radical absorbance capacity (473 µmol Trolox equivalent/g RPHs). The concentrations of the RPH solution required to achieve 50% inhibition of hyaluronidase and tyrosinase activities were determined to be 8.91 and 107.6 mg/mL, respectively. This study demonstrated that RPHs have antioxidant, antihyaluronidase, and antityrosinase activities for future cosmetic applications.
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Affiliation(s)
- Hui-Ju Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 402204, Taiwan; (H.-J.C.); (C.-F.C.)
- Healthmate Co., Ltd., Changhua City 500016, Taiwan; (F.-J.D.); (S.-L.F.); (Y.-C.H.)
| | - Fan-Jhen Dai
- Healthmate Co., Ltd., Changhua City 500016, Taiwan; (F.-J.D.); (S.-L.F.); (Y.-C.H.)
| | - Cheng-You Chen
- Ph.D. Program in Materials and Chemical Engineering, National United University, Miaoli 360001, Taiwan;
| | - Siao-Ling Fan
- Healthmate Co., Ltd., Changhua City 500016, Taiwan; (F.-J.D.); (S.-L.F.); (Y.-C.H.)
| | - Ji-Hong Zheng
- Department of Chemical Engineering, National United University, Miaoli 360001, Taiwan;
| | - Yu-Chun Huang
- Healthmate Co., Ltd., Changhua City 500016, Taiwan; (F.-J.D.); (S.-L.F.); (Y.-C.H.)
| | - Chi-Fai Chau
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 402204, Taiwan; (H.-J.C.); (C.-F.C.)
| | - Yung-Sheng Lin
- Ph.D. Program in Materials and Chemical Engineering, National United University, Miaoli 360001, Taiwan;
- Department of Chemical Engineering, National United University, Miaoli 360001, Taiwan;
- Institute of Food Safety and Health Risk Assessment, National Yang-Ming University, Taipei 112304, Taiwan
- Correspondence: (Y.-S.L.); (C.-S.C.)
| | - Chin-Shuh Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 402204, Taiwan; (H.-J.C.); (C.-F.C.)
- Correspondence: (Y.-S.L.); (C.-S.C.)
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Sun Y, Liu H, Yang Y, Zhou X, Xiu Z. High-efficient L-lactic acid production from inedible starchy biomass by one-step open fermentation using thermotolerant Lactobacillus rhamnosus DUT1908. Bioprocess Biosyst Eng 2021; 44:1935-1941. [PMID: 33890154 DOI: 10.1007/s00449-021-02573-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 04/14/2021] [Indexed: 01/04/2023]
Abstract
The purpose of this study was to establish a simplified operational process for lactic acid (LA) production from inedible starchy biomass by open fermentation using thermotolerant Lactobacillus rhamnosus DUT1908. One step simultaneous liquefaction, saccharification and fermentation (SLSF) was proposed to produce LA using aging paddy rice with hull (APRH) as feedstock. First, a robust microbial strain was obtained by adaptive laboratory evolution under high temperature stress. As a result, L. rhamnosus DUT1908 showed high thermotolerance up to 50 °C and high efficiency of substrate utilization. Then, the performance of this thermotolerant L-lactic acid producing strain was demonstrated. Finally, various fermentation strategies were compared for LA production from APRH, including simultaneous saccharification and fermentation (SSF) and SLSF. In one-step open SLSF process, 107.8 g/L lactic acid was obtained with a productivity of 3.4 g/(L.h) and a yield to theoretical glucose of 0.89 g/g. This is the highest yield and productivity of lactic acid reported on starchy residues, and provides an efficient route for the development of high value-added products.
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Affiliation(s)
- Yaqin Sun
- School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, 116024, People's Republic of China
| | - Huihui Liu
- School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, 116024, People's Republic of China
| | - Yong Yang
- School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, 116024, People's Republic of China
| | - Xu Zhou
- School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, 116024, People's Republic of China
| | - Zhilong Xiu
- School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, 116024, People's Republic of China.
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Abedi E, Hashemi SMB. Lactic acid production - producing microorganisms and substrates sources-state of art. Heliyon 2020; 6:e04974. [PMID: 33088933 PMCID: PMC7566098 DOI: 10.1016/j.heliyon.2020.e04974] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/08/2020] [Accepted: 09/16/2020] [Indexed: 01/18/2023] Open
Abstract
Lactic acid is an organic compound produced via fermentation by different microorganisms that are able to use different carbohydrate sources. Lactic acid bacteria are the main bacteria used to produce lactic acid and among these, Lactobacillus spp. have been showing interesting fermentation capacities. The use of Bacillus spp. revealed good possibilities to reduce the fermentative costs. Interestingly, lactic acid high productivity was achieved by Corynebacterium glutamicum and E. coli, mainly after engineering genetic modification. Fungi, like Rhizopus spp. can metabolize different renewable carbon resources, with advantageously amylolytic properties to produce lactic acid. Additionally, yeasts can tolerate environmental restrictions (for example acidic conditions), being the wild-type low lactic acid producers that have been improved by genetic manipulation. Microalgae and cyanobacteria, as photosynthetic microorganisms can be an alternative lactic acid producer without carbohydrate feed costs. For lactic acid production, it is necessary to have substrates in the fermentation medium. Different carbohydrate sources can be used, from plant waste as molasses, starchy, lignocellulosic materials as agricultural and forestry residues. Dairy waste also can be used by the addition of supplementary components with a nitrogen source.
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Affiliation(s)
- Elahe Abedi
- Department of Food Science and Technology, College of Agriculture, Fasa University, Fasa, Iran
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6
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Marques GL, Aguiar-Oliveira E. Yellow mombin and jackfruit seeds residues applied in the production of reducing sugars by a crude multi-enzymatic extract produced by Penicillium roqueforti ATCC 101110. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:3428-3434. [PMID: 32166762 DOI: 10.1002/jsfa.10377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 03/07/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND As an alternative to the use of widely investigated agro-industrial residues, the present study aimed to promote the valorization of two selected residues, yellow mombin seed (YS) and jackfruit seed (JS), as a result of their enhanced performance. RESULTS YS was applied as a solid state substrate for Penicillium roqueforti ATCC 101110 cultivation (25 °C, Aw = 0.963, 107 spores g-1 and 142 h) to produce a crude multi-enzymatic extract (CE-YS) containing activities of CMCase = 31.95 U g-1 , xylanase = 56.85 U g-1 , exoglucanase = 5.55 U g-1 and FPase = 24.60 U g-1 . CE-YS was then applied to six different residues saccharification and the best performance was obtained with jackfruit seed residue (JS), which was selected for enzymatic saccharification. The highest productivity of reducing sugars expressed as glucose (6.26 mg g-1 h-1 ) was obtained under the conditions: 40.7 g L-1 JS, 5 mmol L-1 MgCl2 , 65 °C, 120 rpm, pH 3.0 (citrate buffer 50 mmol L-1 ) and 18 h. CONCLUSION The residues, YS and JS, can be used satisfactorily for the production of bioproducts of great industrial applicability, such as crude extracts (containing cellulolytic enzymes) and RS (which can be converted, for example, into bioethanol). © 2020 Society of Chemical Industry.
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Affiliation(s)
- George L Marques
- Department of Exact Sciences and Technologies (DCET), State University of Santa Cruz (UESC), Ilhéus, Brazil
| | - Elizama Aguiar-Oliveira
- Department of Exact Sciences and Technologies (DCET), State University of Santa Cruz (UESC), Ilhéus, Brazil
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7
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Sun Y, Yang Y, Liu H, Wei C, Qi W, Xiu Z. Simultaneous liquefaction, saccharification, and fermentation of L-lactic acid using aging paddy rice with hull by an isolated thermotolerant Enterococcus faecalis DUT1805. Bioprocess Biosyst Eng 2020; 43:1717-1724. [PMID: 32388689 DOI: 10.1007/s00449-020-02364-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 04/25/2020] [Indexed: 11/24/2022]
Abstract
Simultaneous liquefaction, saccharification, and fermentation (SLSF) has attracted much attention for the production of bio-based chemicals, including L-lactic acid, due to its high efficiency and low cost. In this study, a lactic acid-producing bacterium with high tolerance of temperature up to 55 °C was isolated and characterized as Enterococcus faecalis DUT1805. Various strategies of stepwise controlled temperature were proposed and investigated for glucose utilization. The results indicated that E. faecalis DUT 1805 exhibited an optimal temperature at 50 °C, which could achieve temperature compatibility of enzyme, saccharification, and fermentation, and decrease the possibility of contamination by the other microorganisms during the large-scale fermentation. To reduce the cost of raw material and operation for lactic acid production, aging paddy rice with hull (APRH) was used in L-lactic acid production by simultaneous liquefaction, saccharification, and fermentation (SLSF). An open SLSF operation at 50 °C and pH 6.5, and 17% (w/v) solid loading in 5 L bioreactors was demonstrated with the lactic acid titer, yield, and productivity of 73.75 g/L, 87% to initial starch, and 2.17 g/(L h), respectively.
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Affiliation(s)
- Yaqin Sun
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, Liaoning, P. R. China
| | - Yong Yang
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, Liaoning, P. R. China
| | - Huihui Liu
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, Liaoning, P. R. China
| | - Chuanxiang Wei
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, Liaoning, P. R. China
| | - Wenbin Qi
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, Liaoning, P. R. China
| | - Zhilong Xiu
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, 116024, Liaoning, P. R. China.
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8
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Yao K, Zhou QX, Liu DM, Chen SM, Yuan K. Comparative proteomics of the metabolic pathways involved in l-lactic acid production in Bacillus coagulans BCS13002 using different carbon sources. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108445] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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9
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Reactive Extraction of Lactic Acid, Formic Acid and Acetic Acid from Aqueous Solutions with Tri-n-octylamine/1-Octanol/n-Undecane. CHEMENGINEERING 2019. [DOI: 10.3390/chemengineering3020043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The present work develops the basics for the isolation of lactic acid, acetic acid and formic acid from a single as well as a mixed feed stream, as is present, for example, in fermentation broth for lactic acid production. Modelling of the phase equilibria data is performed using the law of mass action and shows that the acids are extracted according to their pka value, where formic acid is preferably extracted in comparison to lactic and acetic acid. Back-extraction was performed by 1 M NaHCO3 solution and shows the same tendency regarding the pka value. Based on lactic acid, the solvent phase composition, consisting of tri-n-octylamine/1-octanol/n-undecane, was optimized in terms of the distribution coefficient. The data clearly indicate that, compared to physical extraction, mass transfer can be massively enhanced by reactive extraction. With increasing tri-n-octylamine and 1-octanol concentration, the equilibrium constant increases. However, even when mass transfer increases, tri-n-octylamine concentrations above 40 wt%, lead to third phase formation, which needs to be prevented for technical application. The presented data are the basis for the transfer to liquid membrane permeation, which enables the handling of emulsion tending systems.
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Eş I, Mousavi Khaneghah A, Barba FJ, Saraiva JA, Sant'Ana AS, Hashemi SMB. Recent advancements in lactic acid production - a review. Food Res Int 2018; 107:763-770. [DOI: 10.1016/j.foodres.2018.01.001] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 12/31/2017] [Accepted: 01/03/2018] [Indexed: 10/18/2022]
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11
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Liu J, Wang Y, Li Z, Ren Y, Zhao Y, Zhao G. Efficient production of high-molecular-weight hyaluronic acid with a two-stage fermentation. RSC Adv 2018; 8:36167-36171. [PMID: 35558483 PMCID: PMC9088804 DOI: 10.1039/c8ra07349j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 10/17/2018] [Indexed: 11/21/2022] Open
Abstract
A two-stage fermentation process with a segmented control strategy provides high-level synthesis in both HA titer and molecular weight.
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Affiliation(s)
- J. Liu
- Fermentation Engineering Technology Research Center of Heibei Province
- College of Bioscience & Bioengineering
- Hebei University of Science and Technology
- Shijiazhuang 050000
- PR China
| | - Y. Wang
- Fermentation Engineering Technology Research Center of Heibei Province
- College of Bioscience & Bioengineering
- Hebei University of Science and Technology
- Shijiazhuang 050000
- PR China
| | - Z. Li
- Fermentation Engineering Technology Research Center of Heibei Province
- College of Bioscience & Bioengineering
- Hebei University of Science and Technology
- Shijiazhuang 050000
- PR China
| | - Y. Ren
- Fermentation Engineering Technology Research Center of Heibei Province
- College of Bioscience & Bioengineering
- Hebei University of Science and Technology
- Shijiazhuang 050000
- PR China
| | - Y. Zhao
- Fermentation Engineering Technology Research Center of Heibei Province
- College of Bioscience & Bioengineering
- Hebei University of Science and Technology
- Shijiazhuang 050000
- PR China
| | - G. Zhao
- Fermentation Engineering Technology Research Center of Heibei Province
- College of Bioscience & Bioengineering
- Hebei University of Science and Technology
- Shijiazhuang 050000
- PR China
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12
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Thapa LP, Lee SJ, Park C, Kim SW. Production of L-lactic acid from metabolically engineered strain of Enterobacter aerogenes ATCC 29007. Enzyme Microb Technol 2017; 102:1-8. [DOI: 10.1016/j.enzmictec.2017.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 03/10/2017] [Accepted: 03/11/2017] [Indexed: 10/20/2022]
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13
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Biorefinery-Based Lactic Acid Fermentation: Microbial Production of Pure Monomer Product. SYNTHESIS, STRUCTURE AND PROPERTIES OF POLY(LACTIC ACID) 2017. [DOI: 10.1007/12_2016_11] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Ma K, Hu G, Pan L, Wang Z, Zhou Y, Wang Y, Ruan Z, He M. Highly efficient production of optically pure l-lactic acid from corn stover hydrolysate by thermophilic Bacillus coagulans. BIORESOURCE TECHNOLOGY 2016; 219:114-122. [PMID: 27479802 DOI: 10.1016/j.biortech.2016.07.100] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 07/21/2016] [Accepted: 07/24/2016] [Indexed: 05/13/2023]
Abstract
A thermophilic strain Bacillus coagulans (NBRC 12714) was employed to produce l-lactic acid from corn stover hydrolysate in membrane integrated continuous fermentation. The strain NBRC 12714 metabolized glucose and xylose by the Embden-Meyerhof-Parnas pathway (EMP) and the pentose phosphate pathway (PPP), producing l-lactic acid with optical purity >99.5%. The overall l-lactic acid titer of 92g/l with a yield of 0.91g/g and a productivity of 13.8g/l/h were achieved at a dilution rate of 0.15h(-1). The productivity obtained was 1.6-fold than that of conventional continuous fermentation without cell recycling, and also was the highest among the relevant studies ever reported. These results indicated that the process developed had great potential for economical industrial production of l-lactic acid from lignocellulosic biomass.
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Affiliation(s)
- Kedong Ma
- College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, PR China
| | - Guoquan Hu
- Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture, Biomass Energy Technology Research Centre, Biogas Institute of Ministry of Agriculture, Chengdu 610041, PR China
| | - Liwei Pan
- College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, PR China
| | - Zichao Wang
- College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, PR China
| | - Yi Zhou
- College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, PR China
| | - Yanwei Wang
- Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture, Biomass Energy Technology Research Centre, Biogas Institute of Ministry of Agriculture, Chengdu 610041, PR China
| | - Zhiyong Ruan
- Key Laboratory of Microbial Resources (Ministry of Agriculture, China), Institute of Agricultural Resources and Regional Planning, CAAS, Beijing 100081, PR China
| | - Mingxiong He
- Key Laboratory of Development and Application of Rural Renewable Energy, Ministry of Agriculture, Biomass Energy Technology Research Centre, Biogas Institute of Ministry of Agriculture, Chengdu 610041, PR China.
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15
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Wang Y, Chen C, Cai D, Wang Z, Qin P, Tan T. The optimization of l-lactic acid production from sweet sorghum juice by mixed fermentation of Bacillus coagulans and Lactobacillus rhamnosus under unsterile conditions. BIORESOURCE TECHNOLOGY 2016; 218:1098-1105. [PMID: 27469090 DOI: 10.1016/j.biortech.2016.07.069] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/17/2016] [Accepted: 07/18/2016] [Indexed: 06/06/2023]
Abstract
The cost reduction of raw material and sterilization could increase the economic feasibility of l-lactic acid fermentation, and the development of an cost-effective and efficient process is highly desired. To improve the efficiency of open fermentation by Lactobacillus rhamnosus based on sweet sorghum juice (SSJ) and to overcome sucrose utilization deficiency of Bacillus coagulans, a mixed fermentation was developed. Besides, the optimization of pH, sugar concentration and fermentation medium were also studied. Under the condition of mixed fermentation and controlled pH, a higher yield of 96.3% was achieved, compared to that (68.8%) in sole Lactobacillus rhamnosus fermentation. With an optimized sugar concentration and a stepwise-controlled pH, the l-lactic acid titer, yield and productivity reached 121gL(-1), 94.6% and 2.18gL(-1)h(-1), respectively. Furthermore, corn steep powder (CSP) as a cheap source of nitrogen and salts was proved to be an efficient supplement to SSJ in this process.
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Affiliation(s)
- Yong Wang
- National energy R&D center for biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Changjing Chen
- National energy R&D center for biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Di Cai
- National energy R&D center for biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zheng Wang
- National energy R&D center for biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Peiyong Qin
- National energy R&D center for biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Tianwei Tan
- National energy R&D center for biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
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16
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Kawaguchi H, Hasunuma T, Ogino C, Kondo A. Bioprocessing of bio-based chemicals produced from lignocellulosic feedstocks. Curr Opin Biotechnol 2016; 42:30-39. [PMID: 26970511 DOI: 10.1016/j.copbio.2016.02.031] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 02/17/2016] [Accepted: 02/24/2016] [Indexed: 10/22/2022]
Abstract
The feedstocks used for the production of bio-based chemicals have recently expanded from edible sugars to inedible and more recalcitrant forms of lignocellulosic biomass. To produce bio-based chemicals from renewable polysaccharides, several bioprocessing approaches have been developed and include separate hydrolysis and fermentation (SHF), simultaneous saccharification and fermentation (SSF), and consolidated bioprocessing (CBP). In the last decade, SHF, SSF, and CBP have been used to generate macromolecules and aliphatic and aromatic compounds that are capable of serving as sustainable, drop-in substitutes for petroleum-based chemicals. The present review focuses on recent progress in the bioprocessing of microbially produced chemicals from renewable feedstocks, including starch and lignocellulosic biomass. In particular, the technological feasibility of bio-based chemical production is discussed in terms of the feedstocks and different bioprocessing approaches, including the consolidation of enzyme production, enzymatic hydrolysis of biomass, and fermentation.
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Affiliation(s)
- Hideo Kawaguchi
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Tomohisa Hasunuma
- Organization of Advanced Science and Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Chiaki Ogino
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
| | - Akihiko Kondo
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan; Biomass Engineering Research Division, RIKEN, 1-7-22 Suehiro, Turumi, Yokohama, Kanagawa 230-0045, Japan.
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17
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Wang J, Gao M, Wang Q, Zhang W, Shirai Y. Pilot-scale open fermentation of food waste to produce lactic acid without inoculum addition. RSC Adv 2016. [DOI: 10.1039/c6ra22760k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A pilot-scale study on lactic acid production from non-sterilized open fermentation of food waste with indigenous microorganisms.
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Affiliation(s)
- Juan Wang
- Department of Environmental Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Ming Gao
- Department of Environmental Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Qunhui Wang
- Department of Environmental Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants
| | - Wenyu Zhang
- Beijing Municipal Research Institute of Environmental Protection
- Beijing
- China
| | - Yoshihito Shirai
- Department of Biological Functions and Engineering
- Kyushu Institute of Technology
- Kitakyushu 808-0196
- Japan
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18
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Wang Y, Wang M, Cai D, Wang B, Wang Z, Qin P, Tan T. Efficient l-lactic acid production from sweet sorghum bagasse by open simultaneous saccharification and fermentation. RSC Adv 2016. [DOI: 10.1039/c6ra04538c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An open SSF process using B. coagulans LA1507 introduces an effective way to produce l-lactic acid from abundant SSB.
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Affiliation(s)
- Y. Wang
- National Energy R&D Center for Biorefinery
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - M. Wang
- National Energy R&D Center for Biorefinery
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - D. Cai
- National Energy R&D Center for Biorefinery
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - B. Wang
- National Energy R&D Center for Biorefinery
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Z. Wang
- National Energy R&D Center for Biorefinery
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - P. Qin
- National Energy R&D Center for Biorefinery
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - T. Tan
- National Energy R&D Center for Biorefinery
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
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