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Tang J, Hu Z, Pu Y, Wang XC, Abomohra A. Bioprocesses for lactic acid production from organic wastes toward industrialization-a critical review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 369:122372. [PMID: 39241596 DOI: 10.1016/j.jenvman.2024.122372] [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: 04/12/2024] [Revised: 08/11/2024] [Accepted: 08/31/2024] [Indexed: 09/09/2024]
Abstract
Lactic acid (LA) is a crucial chemical which has been widely used for industrial application. Microbial fermentation is the dominant pathway for LA production and has been regarded as the promising technology. In recent years, many studies on LA production from various organic wastes have been published, which provided alternative ways to reduce the LA production cost, and further recycle organic wastes. However, few researchers focused on industrial application of this technology due to the knowledge gap and some uncertainties. In this review, the recent advances, basic knowledge and limitations of LA fermentation from organic wastes are discussed, the challenges and suitable envisaged solutions for enhancing LA yield and productivity are provided to realize industrial application of this technology, and also some perspectives are given to further valorize the LA fermentation processes from organic wastes. This review can be a useful guidance for industrial LA production from organic wastes on a sustainable view.
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Affiliation(s)
- Jialing Tang
- Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu, 610106, China.
| | - Zongkun Hu
- Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu, 610106, China
| | - Yunhui Pu
- Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu, 610106, China; College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Xiaochang C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an, 710055, China.
| | - Abdelfatah Abomohra
- Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu, 610106, China; Aquatic Ecophysiology and Phycology, Institute of Plant Science and Microbiology, University of Hamburg, 22609, Hamburg, Germany
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Che S, Xu Y, Qin X, Tian S, Wang J, Zhou X, Cao Z, Wang D, Wu M, Wu Z, Yang M, Wu L, Yang X. Building microbial consortia to enhance straw degradation, phosphorus solubilization, and soil fertility for rice growth. Microb Cell Fact 2024; 23:232. [PMID: 39169403 PMCID: PMC11337586 DOI: 10.1186/s12934-024-02503-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 08/07/2024] [Indexed: 08/23/2024] Open
Abstract
Straw pollution and the increasing scarcity of phosphorus resources in many regions of China have had severe impacts on the growing conditions for crop plants. Using microbial methods to enhance straw decomposition rate and phosphorus utilization offers effective solutions to address these problems. In this study, a microbial consortium 6 + 1 (consisting of a straw-degrading bacterium and a phosphate-solubilizing bacterium) was formulated based on their performance in straw degradation and phosphorus solubilization. The degradation rate of straw by 6 + 1 microbial consortium reached 48.3% within 7 days (The degradation ability was 7% higher than that of single bacteria), and the phosphorus dissolution rate of insoluble phosphorus reached 117.54 mg·L- 1 (The phosphorus solubilization ability was 29.81% higher than that of single bacteria). In addition, the activity of lignocellulosic degrading enzyme system was significantly increased, the activities of endoglucanase, β-glucosidase and xylanase in the microbial consortium were significantly higher than those in the single strain (23.16%, 28.02% and 28.86%, respectively). Then the microbial consortium was processed into microbial agents and tested in rice pots. The results showed that the microbial agent significantly increased the content of organic matter, available phosphorus and available nitrogen in the soil. Ongoing research focuses on the determination of the effects and mechanisms of a functional hybrid system of straw degradation and phosphorus removal. The characteristics of the two strains are as follows: Straw-degrading bacteria can efficiently degrade straw to produce glucose-based carbon sources when only straw is used as a carbon source. Phosphate-solubilizing bacteria can efficiently use glucose as a carbon source, produce organic acids to dissolve insoluble phosphorus and consume glucose at an extremely fast rate. The analysis suggests that the microbial consortium 6 + 1 outperformed individual strains in terms of both performance and application effects. The two strains within the microbial consortium promote each other during their growth processes, resulting in a significantly higher rate of carbon source consumption compared to the individual strains in isolation. This increased demand for carbon sources within the growth system facilitates the degradation of straw by the strains. At the same time, the substantial carbon consumption during the metabolic process generated a large number of organic acids, leading to the solubilization of insoluble phosphorus. It also provides a basis for the construction of this type of microbial consortium.
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Affiliation(s)
- Songhao Che
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Yufeng Xu
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Xueting Qin
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Shiqi Tian
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Jianing Wang
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Xueying Zhou
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Zhenning Cao
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Dongchao Wang
- Faculty of Agronomy, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Meikang Wu
- Faculty of Agronomy, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Zhihai Wu
- Faculty of Agronomy, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Meiying Yang
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Lei Wu
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China.
| | - Xue Yang
- College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China.
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Zhu L, Di J, Li Q, He YC, Ma C. Enhanced conversion of corncob into furfurylamine via chemoenzymatic cascade catalysis in a toluene–water medium. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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Thongbunrod N, Chaiprasert P. Anaerobic microbial cocktail of lignocellulolytic fungi and bacteria with methanogens for boosting methane production from unpretreated rice straw. Bioprocess Biosyst Eng 2023; 46:251-264. [PMID: 36495340 DOI: 10.1007/s00449-022-02829-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022]
Abstract
Rice straw (RS) has been recognized as a sustainable renewable energy resource for converting into sugars and volatile fatty acids (acetate, propionate, and butyrate) and subsequently to produce biogas. Enhanced production of these intermediates from RS by the different combinations of two consortia was investigated. Anaerobic microbial cocktails of fungi, bacteria, and methanogens were evaluated for performance and stability in the anaerobic digestion of untreated RS. The best-defined anaerobic microbial cocktail for high RS degradation and methane production, consisting of anaerobic bacteria (mainly Proteiniphilum acetatigenes, Pyramidobacter piscolens, and Mesotoga prima) and anaerobic lignocellulolytic/fermentative fungi (uncultured Neocallimastigales, Orpinomyces, Anaeromyces, and Feramyces sp.) at a copy number ratio of 103-105 copies/mL, including hydrogenotrophic and acetoclastic methanogens (Methanosarcina mazei, Methanoculleus marisnigri, Methanofollis liminatans, Methanoculleus bourgensis, and Methanosaeta harundinacea) concentration of 106 copies/mL, was successfully constructed. The system performance was 80% VS (volatile solids) RS degradation, 34 mL/day methane production rate, 318 mL/g VSadded methane yield, and a pH range of 6.90-7.70 within a short time of 14 days. A defined microbial cocktail has been proven as a potential alternative process for lignocellulose hydrolysis and methane production.
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Affiliation(s)
- Nitiya Thongbunrod
- Biotechnology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand
| | - Pawinee Chaiprasert
- Biotechnology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand.
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Sai Bharadwaj AVSL, Dev S, Zhuang J, Wang Y, Yoo CG, Jeon BH, Aggarwal S, Park SH, Kim TH. Review of chemical pretreatment of lignocellulosic biomass using low-liquid and low-chemical catalysts for effective bioconversion. BIORESOURCE TECHNOLOGY 2023; 368:128339. [PMID: 36400274 DOI: 10.1016/j.biortech.2022.128339] [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: 09/29/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Chemical pretreatment of lignocellulosic biomass (LCB) is essential for effective biological conversion in subsequent steps to produce biofuels or biochemicals. For effective pretreatment, high lignin content and its recalcitrant nature of LCB are major factors influencing bioconversion, especially lignin is known to be effectively solubilized by alkaline, organic, and deep eutectic solvents, ionic liquids, while hemicellulose is effectively dissolved by various acid catalysts and organic solvents. Depending on the pretreatment method/catalyst used, different pretreatment process scheme should be applied with different amounts of catalyst and water inputs to achieve a satisfactory effect. In addition, the amount of processing water required in the following processes such as washing, catalyst recovery, and conditioning after pretreatment is critical factor for scale-up (commercialization). In this review, the amount of catalyst and/or water used, and the effect of pretreatment, properties of the products, and recovery of liquid are also discussed.
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Affiliation(s)
- A V S L Sai Bharadwaj
- Department of Materials Sciences and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Subhabrata Dev
- Water and Environmental Research Center (WERC), Institute of Northern Engineering (INE), University of Alaska Fairbanks (UAF), Fairbanks, AK 99775, USA
| | - Jingshun Zhuang
- Department of Chemical Engineering, State University of New York, College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Yunxuan Wang
- Department of Chemical Engineering, State University of New York, College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Chang Geun Yoo
- Department of Chemical Engineering, State University of New York, College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Srijan Aggarwal
- Civil, Geological, and Environmental Engineering, University of Alaska Fairbanks, College of Engineering and Mines, Fairbanks, AK 99775-5960, USA
| | - Seung Hyun Park
- Department of Materials Sciences and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Tae Hyun Kim
- Department of Materials Sciences and Chemical Engineering, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea.
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Effects of Solid-State Fermentation Pretreatment with Single or Dual Culture White Rot Fungi on White Tea Residue Nutrients and In Vitro Rumen Fermentation Parameters. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8100557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Fermentation of agricultural by-products by white rot fungi is a research hotspot in the development of ruminant feed resources. The aim of this study was to investigate the potential of the nutritional value and rumen fermentation properties of white tea residue fermented at different times, using single and dual culture white rot fungal species. Phanerochaete chrysosporium, Pleurotus ostreatus, and Phanerochaete chrysosporium + Pleurotus ostreatus (dual culture) solid-state fermented white tea residue was used for 4 weeks, respectively. The crude protein content increased significantly in all treatment groups after 4 weeks. Total extractable tannin content was significantly decreased in all treatment groups (p < 0.01). P. chrysosporium and dual culture significantly reduced lignin content at 1 week. The content of NH3-N increased in each treatment group (p < 0.05). P. chrysosporium treatment can reduce the ratio of acetic to propionic and improve digestibility. Solid state fermentation of white tea residue for 1 week using P. chrysosporium was the most desirable.
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