1
|
Chawla SK, Goyal D. Enhanced production of lactic acid from pretreated rice straw using co-cultivation of Bacillus licheniformis and Bacillus sonorenesis. 3 Biotech 2024; 14:169. [PMID: 38828100 PMCID: PMC11143171 DOI: 10.1007/s13205-024-04014-6] [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: 03/12/2024] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
Lactic acid (LA) production from sugar mixture derived from lignocellulosic rice straw employing co- culture system of thermotolerant and inhibitor tolerant Bacillus licheniformis DGB and Bacillus sonorenesis DGS15 was carried out. In minimal media, both the strains of Bacillus DGB and DGS15 worked together by efficiently utilising glucose and xylose respectively. Response Surface Methodology (RSM) was used for optimisation of pretreatment of rice straw to achieve maximum yield of 50.852 g/L total reducing sugar (TRS) from 100 gm of rice straw biomass. Pretreatment of rice straw resulted in its delignification, as confirmed by FTIR spectroscopy, since the peak at 1668 cm-1 disappeared due to removal of lignin and scanning electron microscopy (SEM) revealed disruption in structural and morphological features. Crystallinity index (CrI) of treated rice straw increased by 15.54% in comparison to native biomass. DGB and DGS15 individually yielded 0.64 g/g and 0.82 g/g lactic acid respectively, where as their co-cultivation led to effective utilisation of both glucose and xylose within 15 h (70%) and complete utilisation in 48 h, producing 49.75 g/L LA with a yield of 0.98 g/g and productivity of 1.036 g/L/h, and resulting in reduction in fermentation time. Separate hydrolysis of rice straw and co-fermentation (SHCF) of hydrolysates by Bacillus spp. enhanced the production of lactic acid, can circumvent challenges in biorefining of lignocellulosic biomass.
Collapse
Affiliation(s)
- Simarpreet Kaur Chawla
- Department of Biotechnology, Thapar Institute of Engineering and Technology (Deemed to be University), Patiala, Punjab 147001 India
| | - Dinesh Goyal
- Department of Biotechnology, Thapar Institute of Engineering and Technology (Deemed to be University), Patiala, Punjab 147001 India
| |
Collapse
|
2
|
Liang J, Li C, Chen Z, Guo F, Dou J, Wang T, Xu ZS. Progress of research and application of Heyndrickxia coagulans ( Bacillus coagulans) as probiotic bacteria. Front Cell Infect Microbiol 2024; 14:1415790. [PMID: 38863834 PMCID: PMC11165213 DOI: 10.3389/fcimb.2024.1415790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/16/2024] [Indexed: 06/13/2024] Open
Abstract
Probiotics are defined as living or dead bacteria and their byproducts that maintain the balance of the intestinal microbiome. They are non-toxic, non-pathogenic, and do not release any toxins either within or outside the body. Adequate consumption of probiotics can enhance metabolite production, increase immunity, maintain a balanced intestinal flora, and stimulate growth. Probiotics do not have negative antibiotic effects and help maintain the natural flora in animals in a balanced state or prevent dysbacteriosis. Heyndrickxia coagulans (H. coagulans) is a novel probiotic species that is gradually being used for the improvement of human health. Compared to commonly used probiotic lactic acid bacteria, H. coagulans can produce spores, which provide the species with high resistance to adverse conditions. Even though they are transient residents of the gut, beneficial bacteria can have a significant impact on the microbiota because they can outnumber harmful germs, and vice versa. This article discusses the probiotic mechanisms of H. coagulans and outlines the requirements for a substance to be classified as a probiotic. It also addresses how to assess strains that have recently been discovered to possess probiotic properties.
Collapse
Affiliation(s)
- Jie Liang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Chunhai Li
- Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Zouquan Chen
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Fangyu Guo
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Jiaxin Dou
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Ting Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Zhen Shang Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China
- School of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| |
Collapse
|
3
|
Thitiprasert S, Jaiaue P, Amornbunchai N, Thammakes J, Piluk J, Srimongkol P, Tanasupawat S, Thongchul N. Association between organic nitrogen substrates and the optical purity of D-lactic acid during the fermentation by Sporolactobacillus terrae SBT-1. Sci Rep 2024; 14:10522. [PMID: 38719898 PMCID: PMC11079031 DOI: 10.1038/s41598-024-61247-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 05/03/2024] [Indexed: 05/12/2024] Open
Abstract
The development of biotechnological lactic acid production has attracted attention to the potential production of an optically pure isomer of lactic acid, although the relationship between fermentation and the biosynthesis of highly optically pure D-lactic acid remains poorly understood. Sporolactobacillus terrae SBT-1 is an excellent D-lactic acid producer that depends on cultivation conditions. Herein, three enzymes responsible for synthesizing optically pure D-lactic acid, including D-lactate dehydrogenase (D-LDH; encoded by ldhDs), L-lactate dehydrogenase (L-LDH; encoded by ldhLs), and lactate racemase (Lar; encoded by larA), were quantified under different organic nitrogen sources and concentration to study the relationship between fermentation conditions and synthesis pathway of optically pure lactic acid. Different organic nitrogen sources and concentrations significantly affected the quantity and quality of D-lactic acid produced by strain SBT-1 as well as the synthetic optically pure lactic acid pathway. Yeast extract is a preferred organic nitrogen source for achieving high catalytic efficiency of D-lactate dehydrogenase and increasing the transcription level of ldhA2, indicating that this enzyme plays a major role in D-lactic acid formation in S. terrae SBT-1. Furthermore, lactate racemization activity could be regulated by the presence of D-lactic acid. The results of this study suggest that specific nutrient requirements are necessary to achieve a stable and highly productive fermentation process for the D-lactic acid of an individual strain.
Collapse
Affiliation(s)
- Sitanan Thitiprasert
- Center of Excellence in Bioconversion and Bioseparation for Platform Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand.
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand.
| | - Phetcharat Jaiaue
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Nichakorn Amornbunchai
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Jesnipit Thammakes
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Jirabhorn Piluk
- Center of Excellence in Bioconversion and Bioseparation for Platform Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Piroonporn Srimongkol
- Center of Excellence in Bioconversion and Bioseparation for Platform Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Somboon Tanasupawat
- Center of Excellence in Bioconversion and Bioseparation for Platform Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
- Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand
| | - Nuttha Thongchul
- Center of Excellence in Bioconversion and Bioseparation for Platform Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand.
- Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330, Thailand.
| |
Collapse
|
4
|
Godos J, Scazzina F, Paternò Castello C, Giampieri F, Quiles JL, Briones Urbano M, Battino M, Galvano F, Iacoviello L, de Gaetano G, Bonaccio M, Grosso G. Underrated aspects of a true Mediterranean diet: understanding traditional features for worldwide application of a "Planeterranean" diet. J Transl Med 2024; 22:294. [PMID: 38515140 PMCID: PMC10956348 DOI: 10.1186/s12967-024-05095-w] [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: 01/31/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024] Open
Abstract
Over the last decades, the Mediterranean diet gained enormous scientific, social, and commercial attention due to proven positive effects on health and undeniable taste that facilitated a widespread popularity. Researchers have investigated the role of Mediterranean-type dietary patterns on human health all around the world, reporting consistent findings concerning its benefits. However, what does truly define the Mediterranean diet? The myriad of dietary scores synthesizes the nutritional content of a Mediterranean-type diet, but a variety of aspects are generally unexplored when studying the adherence to this dietary pattern. Among dietary factors, the main characteristics of the Mediterranean diet, such as consumption of fruit and vegetables, olive oil, and cereals should be accompanied by other underrated features, such as the following: (i) specific reference to whole-grain consumption; (ii) considering the consumption of legumes, nuts, seeds, herbs and spices often untested when exploring the adherence to the Mediterranean diet; (iii) consumption of eggs and dairy products as common foods consumed in the Mediterranean region (irrespectively of the modern demonization of dietary fat intake). Another main feature of the Mediterranean diet includes (red) wine consumption, but more general patterns of alcohol intake are generally unmeasured, lacking specificity concerning the drinking occasion and intensity (i.e., alcohol drinking during meals). Among other underrated aspects, cooking methods are rather simple and yet extremely varied. Several underrated aspects are related to the quality of food consumed when the Mediterranean diet was first investigated: foods are locally produced, minimally processed, and preserved with more natural methods (i.e., fermentation), strongly connected with the territory with limited and controlled impact on the environment. Dietary habits are also associated with lifestyle behaviors, such as sleeping patterns, and social and cultural values, favoring commensality and frugality. In conclusion, it is rather reductive to consider the Mediterranean diet as just a pattern of food groups to be consumed decontextualized from the social and geographical background of Mediterranean culture. While the methodologies to study the Mediterranean diet have demonstrated to be useful up to date, a more holistic approach should be considered in future studies by considering the aforementioned underrated features and values to be potentially applied globally through the concept of a "Planeterranean" diet.
Collapse
Affiliation(s)
- Justyna Godos
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | | | - Francesca Giampieri
- Department of Clinical Sciences, Università Politecnica Delle Marche, Ancona, Italy
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011, Santander, Spain
| | - José L Quiles
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011, Santander, Spain
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento S/N, Parque Tecnologico de La Salud, Armilla, 18016, Granada, Spain
- Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, 18016, Granada, Spain
| | - Mercedes Briones Urbano
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011, Santander, Spain
- Universidad Internacional Iberoamericana, Campeche, 24560, México
- Universidad Internacional Iberoamericana, Arecibo, PR, 00613, USA
| | - Maurizio Battino
- Department of Clinical Sciences, Università Politecnica Delle Marche, Ancona, Italy
- Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres 21, 39011, Santander, Spain
- International Joint Research Laboratory of Intelligent Agriculture and Agri-Products Processing, Jiangsu University, Zhenjiang, Jiangsu, People's Republic of China
| | - Fabio Galvano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Licia Iacoviello
- Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
- Libera Università Mediterranea (LUM) "Giuseppe Degennaro", Casamassima (Bari), Italy
| | | | | | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
- Center for Human Nutrition and Mediterranean Foods (NUTREA), University of Catania, Catania, Italy.
| |
Collapse
|
5
|
Aliev G, Toms R, Melnikov P, Gervald A, Glushchenko L, Sedush N, Chvalun S. Synthesis of L-Lactide from Lactic Acid and Production of PLA Pellets: Full-Cycle Laboratory-Scale Technology. Polymers (Basel) 2024; 16:624. [PMID: 38475307 DOI: 10.3390/polym16050624] [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: 02/05/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Lactide is one of the most popular and promising monomers for the synthesis of biocompatible and biodegradable polylactide and its copolymers. The goal of this work was to carry out a full cycle of polylactide production from lactic acid. Process conditions and ratios of reagents were optimized, and the key properties of the synthesized polymers were investigated. The influence of synthesis conditions and the molecular weight of lactic acid oligomers on the yield of lactide was studied. Lactide polymerization was first carried out in a 500 mL flask and then scaled up and carried out in a 2000 mL laboratory reactor setup with a combined extruder. Initially, the lactic acid solution was concentrated to remove free water; then, the oligomerization and synthesis of lactide were carried out in one flask in the presence of various concentrations of tin octoate catalyst at temperatures from 150 to 210 °C. The yield of lactide was 67-69%. The resulting raw lactide was purified by recrystallization in solvents. The yield of lactide after recrystallization in butyl acetate (selected as the optimal solvent for laboratory purification) was 41.4%. Further, the polymerization of lactide was carried out in a reactor unit at a tin octoate catalyst concentration of 500 ppm. Conversion was 95%; Mw = 228 kDa; and PDI = 1.94. The resulting products were studied by differential scanning calorimetry, NMR spectroscopy and gel permeation chromatography. The resulting polylactide in the form of pellets was obtained using an extruder and a pelletizer.
Collapse
Affiliation(s)
- Gadir Aliev
- M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA-Russian Technological University, Moscow 119571, Russia
| | - Roman Toms
- M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA-Russian Technological University, Moscow 119571, Russia
| | - Pavel Melnikov
- M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA-Russian Technological University, Moscow 119571, Russia
| | - Alexander Gervald
- M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA-Russian Technological University, Moscow 119571, Russia
| | | | - Nikita Sedush
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Moscow 117393, Russia
| | - Sergei Chvalun
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Moscow 117393, Russia
| |
Collapse
|
6
|
Liu J, Han X, Tao F, Xu P. Metabolic engineering of Geobacillus thermoglucosidasius for polymer-grade lactic acid production at high temperature. BIORESOURCE TECHNOLOGY 2024; 393:130164. [PMID: 38072074 DOI: 10.1016/j.biortech.2023.130164] [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: 11/16/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 01/18/2024]
Abstract
The production and application of biodegradable polylactic acid are still severely hindered by the cost of its polymer-grade lactic acid monomers. High-temperature biomanufacturing has emerged as an increasingly attractive approach to enable low-cost and high-efficiency bulk chemical production. In this study, thermophilic Geobacillus thermoglucosidasius was reprogrammed to obtain optically pure l-lactic acid- and d-lactic acid-producing strains, G. thermoglucosidasius GTD17 and GTD7, by using rational metabolic engineering strategies including pathway construction, by-product elimination, and production enhancing. Moreover, semi-rational adaptive evolution was carried out to further improve their lactic acid synthesis performance. The final strains GTD17-55 and GTD7-144 produce 151.1 g/L of l-lactic acid and 153.1 g/L of d-lactic acid at 60 °C, respectively. In consideration of the high temperature, productive performance of these strains is superior compared to the state-of-the-art industrial strains. This study lays the foundation for the low-cost and efficient production of biodegradable plastic polylactic acid.
Collapse
Affiliation(s)
- Jiongqin Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Han
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Fei Tao
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
| | - Ping Xu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
| |
Collapse
|
7
|
Nie M, Wang J, Zhang K. Engineering a Novel Acetyl-CoA Pathway for Efficient Biosynthesis of Acetyl-CoA-Derived Compounds. ACS Synth Biol 2024; 13:358-369. [PMID: 38151239 DOI: 10.1021/acssynbio.3c00613] [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] [Indexed: 12/29/2023]
Abstract
Acetyl-CoA is an essential central metabolite in living organisms and a key precursor for various value-added products as well. However, the intracellular availability of acetyl-CoA limits the efficient production of these target products due to complex and strict regulation. Here, we proposed a new acetyl-CoA pathway, relying on two enzymes, threonine aldolase and acetaldehyde dehydrogenase (acetylating), which can convert one l-threonine into one acetyl-CoA, one glycine, and generate one NADH, without carbon loss. Introducing the acetyl-CoA pathway could increase the intracellular concentration of acetyl-CoA by 8.6-fold compared with the wild-type strain. To develop a cost-competitive and genetically stable acetyl-CoA platform strain, the new acetyl-CoA pathway, driven by the constitutive strong promoter, was integrated into the chromosome of Escherichia coli. We demonstrated the practical application of this new acetyl-CoA pathway by high titer production of β-alanine, mevalonate, and N-acetylglucosamine. At the same time, this pathway achieved a high-yield production of glycine, a value-added commodity chemical for the synthesis of glyphosate and thiamphenicol. This work shows the potential of this new acetyl-CoA pathway for the industrial production of acetyl-CoA-derived compounds.
Collapse
Affiliation(s)
- Mengzhen Nie
- Zhejiang University, Hangzhou, Zhejiang 310027, China
- Center of Synthetic Biology and Integrated Bioengineering, School of Engineering, Westlake University, Hangzhou, Zhejiang 310030, China
| | - Jingyu Wang
- Center of Synthetic Biology and Integrated Bioengineering, School of Engineering, Westlake University, Hangzhou, Zhejiang 310030, China
| | - Kechun Zhang
- Center of Synthetic Biology and Integrated Bioengineering, School of Engineering, Westlake University, Hangzhou, Zhejiang 310030, China
| |
Collapse
|
8
|
Li Y, Yan Y, Chen J, Zhang Z, Hu W. Enhancement effect of l-cysteine on lactic acid fermentation production. Biotechnol J 2023; 18:e2300110. [PMID: 37533375 DOI: 10.1002/biot.202300110] [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: 03/09/2023] [Revised: 07/11/2023] [Accepted: 08/01/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Environmental stress resistance is still a bottleneck for economical process for l-lactic acid fermentation. Chronological lifespan (CLS) extension has represented a promising strategy for improving stress resistance of microbial cell factories. MAIN METHODS AND MAJOR RESULTS In this study, addition of anti-aging drug cysteine, a kind of extending CLS of microbial cell factories, was systematically evaluated on cell viability and l-lactic acid production in Bacillus coagulans CICC 23843. The results revealed that 16 mm l-cysteine supplement significantly improved l-lactic acid titer in B. coagulans. The enhanced total antioxidant capacity (T-AOC) and key enzymes activities involving in glycolytic pathway as well as differentially expressed genes involved in cysteine synthesize and cysteine precursor synthesize pathways, and fatty acid degradation pathway may help to further understand the relative mechanism of l-cysteine effect on improving l-lactic acid accumulation. Finally, based on 16 mm l-cysteine supplement, a final l-lactic acid titer of 130.5 g L-1 with l-lactic acid productivity of 4.07 g L-1 h-1 and the conversion rate of 0.94 g g-1 total sugar was achieved in a 5 L bioreactor. CONCLUSIONS AND IMPLICATIONS This study provided a valuable option for engineering lactic acid bacteria lifespan for enhancement of lactic acid yield.
Collapse
Affiliation(s)
- Yongda Li
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, P.R. China
| | - Yongli Yan
- Department of Biophysics, Institute of Modern Physics, Chinese, Academy of Sciences, Lanzhou, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Jihong Chen
- Department of Biophysics, Institute of Modern Physics, Chinese, Academy of Sciences, Lanzhou, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Zhen Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, P.R. China
| | - Wei Hu
- Department of Biophysics, Institute of Modern Physics, Chinese, Academy of Sciences, Lanzhou, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| |
Collapse
|
9
|
Yang P, Liang J, Yin Q, Li G, Zhang Y, Xu Y, Hao L. Pacificoceanicola onchidii gen. nov., sp. nov., isolated from a marine invertebrate from the South China Sea. Int J Syst Evol Microbiol 2023; 73. [PMID: 37888976 DOI: 10.1099/ijsem.0.006103] [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] [Indexed: 10/28/2023] Open
Abstract
A Gram-stain-negative, facultative anaerobic, non-flagellated and oval-shaped (0.77-0.98 µm wide and 0.74-1.21 µm long) bacterial strain, designated XY-301T, was isolated from a marine invertebrate collected from the South China Sea. Strain XY-301T grew at 15-37 °C (optimum, 30-35 °C) and at pH 7.0-8.5 (optimum, pH 8.0). The strain was slightly halophilic and it only grew in the presence of 0.5-6.5 % (w/v) NaCl (optimum, 2.5-3.5 %). Its predominant fatty acid (>10 %) was C18 : 1 ω7c. The predominant polar lipids of XY-301T were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, six unidentified aminolipids, three unidentified phospholipids and two unknown polar lipids. The respiratory quinone was Q-10. The genome of XY-301T was 4 979 779 bp in size, with a DNA G+C content of 61.3 mol%. The average nucleotide identity, digital DNA-DNA hybridization and average amino acid identity values between XY-301T and Pseudoprimorskyibacter insulae SSK3-2T were 73.3, 14.5 and 53.5 %, respectively. Based on the results of phylogenetic, phenotypic, chemotaxonomic and genomic analyses, strain XY-301T is considered to represent a novel species and a new genus of the family Roseobacteraceae, for which the name Pacificoceanicola onchidii gen. nov., sp. nov. is proposed. The type strain is XY-301T (=KCTC 72212T=MCCC 1K03614T).
Collapse
Affiliation(s)
- Peng Yang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, 3688 Nanhai Avenue, Nanshan Section, Shenzhen 518060, PR China
| | - Jinyou Liang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, 3688 Nanhai Avenue, Nanshan Section, Shenzhen 518060, PR China
| | - Qi Yin
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, PR China
| | - Guanbin Li
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, 3688 Nanhai Avenue, Nanshan Section, Shenzhen 518060, PR China
| | - Yu Zhang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, 3688 Nanhai Avenue, Nanshan Section, Shenzhen 518060, PR China
| | - Ying Xu
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, 3688 Nanhai Avenue, Nanshan Section, Shenzhen 518060, PR China
| | - Lingyun Hao
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, 3688 Nanhai Avenue, Nanshan Section, Shenzhen 518060, PR China
| |
Collapse
|
10
|
Gupta V, Odaneth AA, Lali AM. High cell density continuous fermentation for L-lactic acid production from cane molasses. Prep Biochem Biotechnol 2023; 53:1043-1057. [PMID: 36655700 DOI: 10.1080/10826068.2023.2166956] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Commercial production of lactic acid (LA) utilizes mostly glucose or lactose coupled with yeast extract (YE) as a supplement. With sugars, nitrogen, and vitamin supplementation being most of the LA production costs, the use of inexpensive molasses, a by-product of the sugar industry, can provide considerable cost savings. There are just a few publications on the production of LA from molasses; consequently, the present investigation was conducted using molasses supplemented with yeast extract. The research was done in a continuous-flow, high-cell-density (HCD) bioreactor with an external membrane microfiltration device for cell recycling. The system, run at 1 L with Lactobacillus delbrueckii NCIM 2025, produced a LA yield of 0.95-0.98 g/g from ∼100 g sugars/L when supplemented with 1 g/L YE. Dilution rates in the range of 0.04-0.36 h-1 resulted in volumetric lactic acid productivities in the range of 4.3-27.6 g/L h, which compares favorably with the highest values recorded in literature, for glucose in the presence of YE, which was as high as 30 g/L. The utilization of cane molasses has a significant impact on the economics of lactic acid production, as measured by a comparison of costs with commercial glucose.
Collapse
Affiliation(s)
- Vaishali Gupta
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Mumbai, India
| | - Annamma A Odaneth
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Mumbai, India
| | | |
Collapse
|
11
|
Herkenhoff ME, de Medeiros IUD, Garutti LHG, Salgaço MK, Sivieri K, Saad SMI. Cashew By-Product as a Functional Substrate for the Development of Probiotic Fermented Milk. Foods 2023; 12:3383. [PMID: 37761092 PMCID: PMC10528859 DOI: 10.3390/foods12183383] [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: 08/19/2023] [Revised: 08/31/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Cashew (Anacardium occidentale) processing generates a by-product (CB) with potential for health benefits and that could be a favorable ingredient to be added to a probiotic food matrix. This study aimed to assess the functional attributes of CB in fermented milk with a probiotic and a starter culture using in vitro gastrointestinal conditions. Two formulations were tested, without CB (Control Formulation-CF) and with CB (Test Formulation-TF), and the two strains most adapted to CB, the probiotic Lacticaseibacillus paracasei subsp. paracasei F19® and the starter Streptococcus thermophilus ST-M6®, were chosen to be fermented in the CF and the TF. During a 28-day period of refrigeration (4 °C), both strains used in the CF and TF maintained a population above 8.0 log CFU/mL. Strains cultured in the TF had a significant increase in total phenolic compounds and greater antioxidant potential during their shelf life, along with improved survival of F19® after in vitro-simulated gastrointestinal conditions. Our study revealed the promising potential of CB in the probiotic beverage. The CB-containing formulation (TF) also exhibited higher phenolic content and antioxidant activity. Furthermore, it acted as a protector for bacteria during gastrointestinal simulation, highlighting its potential as a healthy and sustainable product.
Collapse
Affiliation(s)
- Marcos Edgar Herkenhoff
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil; (M.E.H.); (I.U.D.d.M.); (L.H.G.G.)
- Food Research Center FoRC, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil
| | - Igor Ucella Dantas de Medeiros
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil; (M.E.H.); (I.U.D.d.M.); (L.H.G.G.)
- Food Research Center FoRC, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil
| | - Luiz Henrique Grotto Garutti
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil; (M.E.H.); (I.U.D.d.M.); (L.H.G.G.)
- Food Research Center FoRC, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil
| | - Mateus Kawata Salgaço
- School of Pharmaceutical Sciences of Araraquara, São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01 s/n, Araraquara 14800-903, SP, Brazil; (M.K.S.); (K.S.)
| | - Katia Sivieri
- School of Pharmaceutical Sciences of Araraquara, São Paulo State University (UNESP), Rodovia Araraquara Jaú, Km 01 s/n, Araraquara 14800-903, SP, Brazil; (M.K.S.); (K.S.)
| | - Susana Marta Isay Saad
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil; (M.E.H.); (I.U.D.d.M.); (L.H.G.G.)
- Food Research Center FoRC, University of São Paulo (USP), Av. Professor Lineu Prestes, 580, São Paulo 05508-000, SP, Brazil
| |
Collapse
|
12
|
Wu F, Wang S, Peng Y, Guo Y, Wang Q. Metabolic engineering of fast-growing Vibrio natriegens for efficient pyruvate production. Microb Cell Fact 2023; 22:172. [PMID: 37667234 PMCID: PMC10476420 DOI: 10.1186/s12934-023-02185-0] [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: 05/19/2023] [Accepted: 08/20/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Pyruvate is a widely used value-added chemical which also serves as a hub of various metabolic pathways. The fastest-growing bacterium Vibrio natriegens is a promising chassis for synthetic biology applications with high substrate uptake rates. The aim of this study was to investigate if the high substrate uptake rates of V. natriegens enable pyruvate production at high productivities. RESULTS Two prophage gene clusters and several essential genes for the biosynthesis of byproducts were first deleted. In order to promote pyruvate accumulation, the key gene aceE encoding pyruvate dehydrogenase complex E1 component was down-regulated to reduce the carbon flux into the tricarboxylic acid cycle. Afterwards, the expression of ppc gene encoding phosphoenolpyruvate carboxylase was fine-tuned to balance the cell growth and pyruvate synthesis. The resulting strain PYR32 was able to produce 54.22 g/L pyruvate from glucose within 16 h, with a yield of 1.17 mol/mol and an average productivity of 3.39 g/L/h. In addition, this strain was also able to efficiently convert sucrose or gluconate into pyruvate at high titers. CONCLUSION A novel strain of V. natriegens was engineered which was capable to provide higher productivity in pyruvate synthesis. This study lays the foundation for the biosynthesis of pyruvate and its derivatives in fast-growing V. natriegens.
Collapse
Affiliation(s)
- Fengli Wu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China.
| | - Shucai Wang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Yanfeng Peng
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China
| | - Yufeng Guo
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China
| | - Qinhong Wang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
- National Center of Technology Innovation for Synthetic Biology, Tianjin, 300308, China.
| |
Collapse
|
13
|
Sansatchanon K, Sudying P, Promdonkoy P, Kingcha Y, Visessanguan W, Tanapongpipat S, Runguphan W, Kocharin K. Development of a Novel D-Lactic Acid Production Platform Based on Lactobacillus saerimneri TBRC 5746. J Microbiol 2023; 61:853-863. [PMID: 37707762 DOI: 10.1007/s12275-023-00077-x] [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: 05/18/2023] [Revised: 08/01/2023] [Accepted: 08/22/2023] [Indexed: 09/15/2023]
Abstract
D-Lactic acid is a chiral, three-carbon organic acid, that bolsters the thermostability of polylactic acid. In this study, we developed a microbial production platform for the high-titer production of D-lactic acid. We screened 600 isolates of lactic acid bacteria (LAB) and identified twelve strains that exclusively produced D-lactic acid in high titers. Of these strains, Lactobacillus saerimneri TBRC 5746 was selected for further development because of its homofermentative metabolism. We investigated the effects of high temperature and the use of cheap, renewable carbon sources on lactic acid production and observed a titer of 99.4 g/L and a yield of 0.90 g/g glucose (90% of the theoretical yield). However, we also observed L-lactic acid production, which reduced the product's optical purity. We then used CRISPR/dCas9-assisted transcriptional repression to repress the two Lldh genes in the genome of L. saerimneri TBRC 5746, resulting in a 38% increase in D-lactic acid production and an improvement in optical purity. This is the first demonstration of CRISPR/dCas9-assisted transcriptional repression in this microbial host and represents progress toward efficient microbial production of D-lactic acid.
Collapse
Affiliation(s)
- Kitisak Sansatchanon
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand
| | - Pipat Sudying
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand
- Chulabhorn Research Institute, Laksi, Bangkok, 10210, Thailand
| | - Peerada Promdonkoy
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand
| | - Yutthana Kingcha
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand
| | - Wonnop Visessanguan
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand
| | - Sutipa Tanapongpipat
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand
| | - Weerawat Runguphan
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand
| | - Kanokarn Kocharin
- National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, 12120, Thailand.
| |
Collapse
|
14
|
Liu J, Zhao H, Yin Z, Dong H, Chu X, Meng X, Li Y, Ding X. Application and prospect of metabolomics-related technologies in food inspection. Food Res Int 2023; 171:113071. [PMID: 37330829 DOI: 10.1016/j.foodres.2023.113071] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Food inspection covers a broad range of topics, including nutrient analysis, food pollutants, food auxiliary materials, additives, and food sensory identification. The foundation of diverse subjects like food science, nutrition, health research, and the food industry, as well as the desired reference for drafting trade and food legislation, makes food inspection highly significant. Because of their high efficiency, sensitivity, and accuracy, instrumental analysis methods have gradually replaced conventional analytical methods as the primary means of food hygiene inspection. SCOPE AND APPROACH Metabolomics-based analysis technology, such as nuclear magnetic resonance (NMR), gas chromatography-mass spectrometry (GC-MS), liquid chromatography-mass spectrometry (LC-MS), and capillary electrophoresis-mass spectrometry (CE-MS), has become a widely used analytics platform. This research provides a bird's eye view of the application and future of metabolomics-related technologies in food inspection. KEY FINDINGS AND CONCLUSIONS We have provided a summary of the features and the application range of various metabolomics techniques, the strengths and weaknesses of different metabolomics platforms, and their implementation in specific inspection procedures. These procedures encompass the identification of endogenous metabolites, the detection of exogenous toxins and food additives, analysis of metabolite alterations during processing and storage, as well as the recognition of food adulteration. Despite the widespread utilization and significant contributions of metabolomics-based food inspection technologies, numerous challenges persist as the food industry advances and technology continues to improve. Thus, we anticipate addressing these potential issues in the future.
Collapse
Affiliation(s)
- Jiazong Liu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Haipeng Zhao
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Ziyi Yin
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Hongyang Dong
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Xiaomeng Chu
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Xuanlin Meng
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China; Shanghai Jiao Tong University, 200030 Shanghai, PR China
| | - Yang Li
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Xinhua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of plant protection, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| |
Collapse
|
15
|
Yin FW, Sun XL, Zheng WL, Yin LF, Luo X, Zhang YY, Wang YF, Fu YQ. Development of a Strategy for L-Lactic Acid Production by Rhizopus oryzae Using Zizania latifolia Waste and Cane Molasses as Carbon Sources. Molecules 2023; 28:6234. [PMID: 37687063 PMCID: PMC10488812 DOI: 10.3390/molecules28176234] [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: 08/09/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
As a biodegradable and renewable material, polylactic acid is considered a major environmentally friendly alternative to petrochemical plastics. Microbial fermentation is the traditional method for lactic acid production, but it is still too expensive to compete with the petrochemical industry. Agro-industrial wastes are generated from the food and agricultural industries and agricultural practices. The utilization of agro-industrial wastes is an important way to reduce costs, save energy and achieve sustainable development. The present study aimed to develop a method for the valorization of Zizania latifolia waste and cane molasses as carbon sources for L-lactic acid fermentation using Rhizopus oryzae LA-UN-1. The results showed that xylose derived from the acid hydrolysis of Z. latifolia waste was beneficial for cell growth, while glucose from the acid hydrolysis of Z. latifolia waste and mixed sugars (glucose and fructose) from the acid hydrolysis of cane molasses were suitable for the accumulation of lactic acid. Thus, a three-stage carbon source utilization strategy was developed, which markedly improved lactic acid production and productivity, respectively reaching 129.47 g/L and 1.51 g/L·h after 86 h of fermentation. This work demonstrates that inexpensive Z. latifolia waste and cane molasses can be suitable carbon sources for lactic acid production, offering an efficient utilization strategy for agro-industrial wastes.
Collapse
Affiliation(s)
- Feng-Wei Yin
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou 318000, China
| | - Xiao-Long Sun
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou 318000, China
| | - Wei-Long Zheng
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou 318000, China
| | - Long-Fei Yin
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou 318000, China
| | - Xi Luo
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou 318000, China
| | - Ying-Ying Zhang
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou 318000, China
| | - Yan-Fei Wang
- Taizhou Institute of Product Quality and Safety Inspection, Taizhou 318000, China
| | - Yong-Qian Fu
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou 318000, China
| |
Collapse
|
16
|
Shao Y, Wang Y, Hua X, Li Y, Wang D. Polylactic acid microparticles in the range of μg/L reduce reproductive capacity by affecting the gonad development and the germline apoptosis in Caenorhabditis elegans. CHEMOSPHERE 2023; 336:139193. [PMID: 37315859 DOI: 10.1016/j.chemosphere.2023.139193] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/09/2023] [Accepted: 06/10/2023] [Indexed: 06/16/2023]
Abstract
Polylactic acid (PLA) accounts for approximately 45% of the global market of biodegradable plastics. Using Caenorhabditis elegans as an animal model, we examined the effect of long-term exposure to PLA microplastic (MP) on reproductive capacity and the underlying mechanism. Brood size, number of fertilized eggs in uterus, and number of hatched eggs were significantly reduced by exposure to 10 and 100 μg/L PLA MP. Number of mitotic cells per gonad, area of gonad arm, and length of gonad arm were further significantly decreased by exposure to 10 and 100 μg/L PLA MP. In addition, exposure to 10 and 100 μg/L PLA MP enhanced germline apoptosis in the gonad. Accompanied with the enhancement in germline apoptosis, exposure to 10 and 100 μg/L PLA MP decreased expression of ced-9 and increased expressions of ced-3, ced-4, and egl-1. Moreover, the induction of germline apoptosis in PLA MP exposed nematodes was suppressed by RNAi of ced-3, ced-4, and egl-1, and strengthened by RNAi of ced-9. Meanwhile, we did not detect the obvious effect of leachate of 10 and 100 μg/L PLA MPs on reproductive capacity, gonad development, germline apoptosis, and expression of apoptosis related genes. Therefore, exposure to 10 and 100 μg/L PLA MPs potentially reduces the reproductive capacity by influencing the gonad development and enhancing the germline apoptosis in nematodes.
Collapse
Affiliation(s)
- Yuting Shao
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Yuxing Wang
- Medical School, Southeast University, Nanjing, China
| | - Xin Hua
- Medical School, Southeast University, Nanjing, China
| | - Yunhui Li
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China.
| | - Dayong Wang
- Medical School, Southeast University, Nanjing, China; Shenzhen Ruipuxun Academy for Stem Cell & Regenerative Medicine, Shenzhen, China.
| |
Collapse
|
17
|
Huang Y, Wang Y, Shang N, Li P. Microbial Fermentation Processes of Lactic Acid: Challenges, Solutions, and Future Prospects. Foods 2023; 12:2311. [PMID: 37372521 DOI: 10.3390/foods12122311] [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: 04/17/2023] [Revised: 05/26/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
The demand for lactic acid and lactic acid-derived products in the food, pharmaceutical, and cosmetic industries is increasing year by year. In recent decades, the synthesis of lactic acid by microbials has gained much attention from scientists due to the superior optical purity of the product, its low production costs, and its higher production efficiency compared to chemical synthesis. Microbial fermentation involves the selection of feedstock, strains, and fermentation modes. Each step can potentially affect the yield and purity of the final product. Therefore, there are still many critical challenges in lactic acid production. The costs of feedstocks and energy; the inhibition of substrates and end-product; the sensitivity to the inhibitory compounds released during pretreatment; and the lower optical purity are the main obstacles hindering the fermentation of lactic acid. This review highlights the limitations and challenges of applying microbial fermentation in lactic acid production. In addition, corresponding solutions to these difficulties are summarized in order to provide some guidance for the industrial production of lactic acid.
Collapse
Affiliation(s)
- Yueying Huang
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yu Wang
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Nan Shang
- College of Engineering, China Agricultural University, Beijing 100083, China
| | - Pinglan Li
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| |
Collapse
|
18
|
Rahim NA, Luthfi AAI, Bukhari NA, Tan JP, Abdul PM, Manaf SFA. Biotechnological enhancement of lactic acid conversion from pretreated palm kernel cake hydrolysate by Actinobacillus succinogenes 130Z. Sci Rep 2023; 13:5787. [PMID: 37031272 PMCID: PMC10082786 DOI: 10.1038/s41598-023-32964-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/05/2023] [Indexed: 04/10/2023] Open
Abstract
The aim of this study was to establish an improved pretreatment and fermentation method i.e. immobilized cells for high recovery of fermentable sugars from palm kernel cake (PKC) and its effects on fermentability performance by Actinobacillus succinogenes 130Z in the conversion of the fermentable sugar to lactic acid. The effects of oxalic acid concentrations (1-6% w/v) and residence times (1-5 h) on the sugar recovery were initially investigated and it was found that the highest mannose concentration was 25.1 g/L at the optimum hydrolysis conditions of 4 h and 3% (w/v) oxalic acid. The subsequent enzymatic saccharification of the pretreated PKC afforded the highest enzymatic digestibility with the recovered sugars amounting to 25.18 g/L and 9.14 g/L of mannose and glucose, respectively. Subsequently, the fermentability performance of PKC hydrolysate was evaluated and compared in terms of cultivation phases (i.e. mono and dual-phases), carbonate loadings (i.e. magnesium and sodium carbonates), and types of sugars (i.e. glucose and mannose). The highest titer of 19.4 g/L lactic acid was obtained from the fermentation involving A. succinogenes 130Z in dual-phase cultivation supplemented with 30 g/L of magnesium carbonate. Lactic acid production was further enhanced by using immobilized cells with coconut shell-activated carbon (CSAC) of different sizes (A, B, C, and D) in the repeated batch cultivation of dual-phase fermentation producing 31.64 g/L of lactic acid. This work sheds light on the possibilities to enhance the utilization of PKC for lactic acid production via immobilized A. succinogenes 130Z.
Collapse
Affiliation(s)
- Nuraishah Abd Rahim
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Abdullah Amru Indera Luthfi
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
- Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
| | - Nurul Adela Bukhari
- Energy and Environment Unit, Engineering & Processing Research Division, Malaysian Palm Oil Board (MPOB), 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia
| | - Jian Ping Tan
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor Darul Ehsan, Malaysia
| | - Peer Mohamed Abdul
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
- Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Shareena Fairuz Abdul Manaf
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia
| |
Collapse
|
19
|
Guo Y, Zhao Y, Gao Y, Wang G, Zhao Y, Zhang J, Li Y, Wang X, Liu J, Chen G. Low acyl gellan gum immobilized Lactobacillus bulgaricus T15 produce D-lactic acid from non-detoxified corn stover hydrolysate. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:43. [PMID: 36915198 PMCID: PMC10009946 DOI: 10.1186/s13068-023-02292-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
Straw biorefinery offers economical and sustainable production of chemicals. The merits of cell immobilization technology have become the key technology to meet D-lactic acid production from non- detoxified corn stover. In this paper, Low acyl gellan gum (LA-GAGR) was employed first time for Lactobacillus bulgaricus T15 immobilization and applied in D-lactic acid (D-LA) production from non-detoxified corn stover hydrolysate. Compared with the conventional calcium alginate (E404), LA-GAGR has a hencky stress of 82.09 kPa and excellent tolerance to 5-hydroxymethylfurfural (5-HMF), ferulic acid (FA), and vanillin. These features make LA-GAGR immobilized T15 work for 50 days via cell-recycle fermentation with D-LA yield of 2.77 ± 0.27 g/L h, while E404 immobilized T15 can only work for 30 days. The production of D-LA from non-detoxified corn stover hydrolysate with LA-GAGR immobilized T15 was also higher than that of free T15 fermentation and E404 immobilized T15 fermentation. In conclusion, LA-GAGR is an excellent cell immobilization material with great potential for industrial application in straw biorefinery industry.
Collapse
Affiliation(s)
- Yongxin Guo
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China
| | - Yuru Zhao
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China
| | - Yuan Gao
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China.,Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Jilin, 130118, China.,College of Food Science Technology and Chemical Engineering, Hubei University of Arts and Science, Hubei, 430000, China.,Sericultural Research Institute of Jilin Province, Jilin, China
| | - Gang Wang
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China. .,Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Jilin, 130118, China.
| | - Yixin Zhao
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China
| | - Jiejing Zhang
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China
| | - Yanli Li
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China
| | - Xiqing Wang
- College of Food Science Technology and Chemical Engineering, Hubei University of Arts and Science, Hubei, 430000, China
| | - Juan Liu
- Sericultural Research Institute of Jilin Province, Jilin, China
| | - Guang Chen
- College of Life Science, Jilin Agricultural University, Jilin, 130118, China.,Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, Jilin Agricultural University, Jilin, 130118, China
| |
Collapse
|
20
|
Tang H, Huang W, Yao YF. The metabolites of lactic acid bacteria: classification, biosynthesis and modulation of gut microbiota. MICROBIAL CELL (GRAZ, AUSTRIA) 2023; 10:49-62. [PMID: 36908281 PMCID: PMC9993431 DOI: 10.15698/mic2023.03.792] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 03/14/2023]
Abstract
Lactic acid bacteria (LAB) are ubiquitous microorganisms that can colonize the intestine and participate in the physiological metabolism of the host. LAB can produce a variety of metabolites, including organic acids, bacteriocin, amino acids, exopolysaccharides and vitamins. These metabolites are the basis of LAB function and have a profound impact on host health. The intestine is colonized by a large number of gut microorganisms with high species diversity. Metabolites of LAB can keep the balance and stability of gut microbiota through aiding in the maintenance of the intestinal epithelial barrier, resisting to pathogens and regulating immune responses, which further influence the nutrition, metabolism and behavior of the host. In this review, we summarize the metabolites of LAB and their influence on the intestine. We also discuss the underlying regulatory mechanisms and emphasize the link between LAB and the human gut from the perspective of health promotion.
Collapse
Affiliation(s)
- Huang Tang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.,Laboratory of Bacterial Pathogenesis, Department of Microbiology and Immunology, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Wanqiu Huang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.,Laboratory of Bacterial Pathogenesis, Department of Microbiology and Immunology, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yu-Feng Yao
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.,Laboratory of Bacterial Pathogenesis, Department of Microbiology and Immunology, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.,Department of Infectious Diseases, Shanghai Ruijin Hospital, Shanghai 200025, China.,State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.,Shanghai Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases (20dz2261100), Shanghai 200025, China
| |
Collapse
|
21
|
Kolitha BS, Jayasekara SK, Tannenbaum R, Jasiuk IM, Jayakody LN. Repurposing of waste PET by microbial biotransformation to functionalized materials for additive manufacturing. J Ind Microbiol Biotechnol 2023; 50:kuad010. [PMID: 37248049 PMCID: PMC10549213 DOI: 10.1093/jimb/kuad010] [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: 02/22/2023] [Accepted: 05/20/2023] [Indexed: 05/31/2023]
Abstract
Plastic waste is an outstanding environmental thread. Poly(ethylene terephthalate) (PET) is one of the most abundantly produced single-use plastics worldwide, but its recycling rates are low. In parallel, additive manufacturing is a rapidly evolving technology with wide-ranging applications. Thus, there is a need for a broad spectrum of polymers to meet the demands of this growing industry and address post-use waste materials. This perspective article highlights the potential of designing microbial cell factories to upcycle PET into functionalized chemical building blocks for additive manufacturing. We present the leveraging of PET hydrolyzing enzymes and rewiring the bacterial C2 and aromatic catabolic pathways to obtain high-value chemicals and polymers. Since PET mechanical recycling back to original materials is cost-prohibitive, the biochemical technology is a viable alternative to upcycle PET into novel 3D printing materials, such as replacements for acrylonitrile butadiene styrene. The presented hybrid chemo-bio approaches potentially enable the manufacturing of environmentally friendly degradable or higher-value high-performance polymers and composites and their reuse for a circular economy. ONE-SENTENCE SUMMARY Biotransformation of waste PET to high-value platform chemicals for additive manufacturing.
Collapse
Affiliation(s)
- Bhagya S Kolitha
- School of Biological Science, Southern Illinois University Carbondale, Carbondale, IL 62901, USA
| | - Sandhya K Jayasekara
- School of Biological Science, Southern Illinois University Carbondale, Carbondale, IL 62901, USA
| | - Rina Tannenbaum
- Department of Materials Science and Chemical Engineering, the Stony Brook University Cancer Center, Stony Brook University, Stony Brook, NY 11794, USA
| | - Iwona M Jasiuk
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Lahiru N Jayakody
- School of Biological Science, Southern Illinois University Carbondale, Carbondale, IL 62901, USA
- Fermentation Science Institute, Southern Illinois University Carbondale, Carbondale, IL 62901, USA
| |
Collapse
|
22
|
Satti S, Palepu MSK, Singh AA, Jaiswal Y, Dash SP, Gajula SNR, Chaganti S, Samanthula G, Sonti R, Dandekar MP. Anxiolytic- and antidepressant-like effects of Bacillus coagulans Unique IS-2 mediate via reshaping of microbiome gut-brain axis in rats. Neurochem Int 2023; 163:105483. [PMID: 36641109 DOI: 10.1016/j.neuint.2023.105483] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/14/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023]
Abstract
BACKGROUND Due to the rising cases of treatment-refractory affective disorders, the discovery of newer therapeutic approaches is needed. In recent times, probiotics have garnered notable attention in managing stress-related disorders. Herein, we examined the effect of Bacillus coagulans Unique IS-2® probiotic on anxiety- and depression-like phenotypes employing maternal separation (MS) and chronic-unpredictable mild stress (CUMS) model in rats. METHODS Both male and female Sprague-Dawley rats were subjected to MS + CUMS. Probiotic treatment was provided for 6 weeks via drinking water. Anxiety- and depression-like phenotypes were assessed using sucrose-preference test (SPT), forced-swimming test (FST), elevated-plus maze test (EPM), and open-field test (OFT). Blood, brain, intestine, and fecal samples were obtained for biochemical and molecular studies. RESULTS Stress-exposed rats drank less sucrose solution, showed increased passivity, and explored less in open-arms in SPT, FST, and EPM, respectively. These stress-generated neurobehavioral aberrations were alleviated by 6-week of Bacillus coagulans Unique IS-2 treatment. The overall locomotor activity in OFT remained unchanged. The decreased levels of BDNF and serotonin and increased levels of C-reactive protein, TNF-α, IL-1β, and dopamine, in the hippocampus and/or frontal cortex of stress-exposed rats were reversed following probiotic treatment. Administration of probiotic also restored the systemic levels of L-tryptophan, L-kynurenine, kynurenic-acid, and 3-hydroxyanthranilic acid, villi/crypt ratio, goblet-cell count, Firmicutes to Bacteroides ratio, and levels of acetate, propionate, and butyrate in fecal samples. These results indicate remodeling of the microbiome gut-brain axis in Bacillus coagulans Unique IS-2 recipient rats. However, protein levels of doublecortin, GFAP, and zona occludens in the hippocampus and occludin-immunoreactivity in the intestine remained unchanged. No prominent sex-specific changes were noted. CONCLUSION Anxiolytic- and antidepressant-like effects of Bacillus coagulans Unique IS-2 in MS + CUMS rat model may be mediated via reshaping the microbiome gut-brain axis.
Collapse
Affiliation(s)
- Srilakshmi Satti
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Mani Surya Kumar Palepu
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Aditya A Singh
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Yash Jaiswal
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Surya Prakash Dash
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Siva Nageswara Rao Gajula
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Sowmya Chaganti
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Gananadhamu Samanthula
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Rajesh Sonti
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India
| | - Manoj P Dandekar
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research NIPER, Hyderabad, India.
| |
Collapse
|
23
|
Ranakoti L, Gangil B, Bhandari P, Singh T, Sharma S, Singh J, Singh S. Promising Role of Polylactic Acid as an Ingenious Biomaterial in Scaffolds, Drug Delivery, Tissue Engineering, and Medical Implants: Research Developments, and Prospective Applications. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020485. [PMID: 36677545 PMCID: PMC9861437 DOI: 10.3390/molecules28020485] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/21/2022] [Accepted: 12/24/2022] [Indexed: 01/06/2023]
Abstract
In the present scenario, the research is now being focused on the naturally occurring polymers that can gradually replace the existing synthetic polymers for the development of bio composites having applications in medical surgeries and human implants. With promising mechanical properties and bio compatibility with human tissues, poly lactic acid (PLA) is now being viewed as a future bio material. In order to examine the applicability of PLA in human implants, the current article sheds light on the synthesis of PLA and its various copolymers used to alter its physical and mechanical properties. In the latter half, various processes used for the fabrication of biomaterials are discussed in detail. Finally, biomaterials that are currently in use in the field of biomedical (Scaffolding, drug delivery, tissue engineering, medical implants, derma, cosmetics, medical surgeries, and human implants) are represented with respective advantages in the sphere of biomaterials.
Collapse
Affiliation(s)
- Lalit Ranakoti
- Department of Mechanical Engineering, Graphic Era Deemed to be University, Dehradun 248002, Uttarakhand, India
| | - Brijesh Gangil
- Mechanical Engineering Department, SOET, HNB Garhwal University, Srinagar 246174, Uttarakhand, India
| | - Prabhakar Bhandari
- Mechanical Engineering Department, SOET, K. R. Mangalam University, Gurgaon 122103, Haryana, India
| | - Tej Singh
- Savaria Institute of Technology, Eötvös Loránd University, 9700 Szombathely, Hungary
| | - Shubham Sharma
- Mechanical Engineering Department, University Center for Research and Development, Chandigarh University, Mohali 140413, Punjab, India
- School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Jujhar Singh
- Department of Mechanical Engineering, IK Gujral Punjab Technical University, Kapurthala 144603, Punjab, India
| | - Sunpreet Singh
- Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
- Correspondence:
| |
Collapse
|
24
|
Tian W, Qin J, Lian C, Yao Q, Wang X. Identification of a major facilitator superfamily protein that is beneficial to L-lactic acid production by Bacillus coagulans at low pH. BMC Microbiol 2022; 22:310. [PMID: 36536285 PMCID: PMC9764580 DOI: 10.1186/s12866-022-02736-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Product inhibition is one of the major problems in lactic acid (LA) fermentation. Our previous study revealed that Bacillus coagulans 2-6 was an efficient producer of high-optical-purity L-LA. Its mutant strain B. coagulans Na-2 has better resistance to sodium lactate stress but the resistance mechanism has not been understood. RESULTS In this study, the whole-genome sequencing of B. coagulans Na-2 was performed and one mutant gene mfs coding for the major facilitator superfamily (MFS) protein was revealed by comparative genome analysis. Ten mutation sites were identified between the wild (MFS-2-6) and mutant (MFS-Na-2) proteins, among which T127A and N154T were predicted locating in the center of the transmembrane transport channel. The MFS-2-6 and MFS-Na-2 were expressed separately in a genetically operable strain, B. coagulans DSM1, using the genes' native promoter. The expression of the two MFS proteins had no effect and a negative effect on L-LA production when the pH was controlled at 6.0 and 7.0 by sodium hydroxide, respectively. However, 4.2 and 4.6-fold of L-LA concentrations were obtained at pH 5.0 by the strains expressing MFS-2-6 and MFS-Na-2 than that by the control strain, respectively. The intracellular pH values of the strains expressing MFS-2-6 and MFS-Na-2 were approximately 0.69 and 0.45 higher than that of the control strain during pH-controlled fermentation at 5.0. Results suggest that the expression of MFS-2-6 and MFS-Na-2 were both conducive to L-LA production at low pH, while the better performance of the latter was probably due to the more appropriate intracellular pH during the whole fermentation process. CONCLUSIONS The MFS protein identified here can improve the ability of B. coagulans to resist acidic environments and produce more L-LA at low pH. The MFS protein has an application potential in environment-friendly L-LA production.
Collapse
Affiliation(s)
- Wenzhe Tian
- grid.440653.00000 0000 9588 091XCollege of Pharmacy, Binzhou Medical University, Yantai, 264003 China
| | - Jiayang Qin
- grid.440653.00000 0000 9588 091XCollege of Pharmacy, Binzhou Medical University, Yantai, 264003 China
| | - Congcong Lian
- grid.440653.00000 0000 9588 091XCollege of Pharmacy, Binzhou Medical University, Yantai, 264003 China
| | - Qingshou Yao
- grid.440653.00000 0000 9588 091XCollege of Pharmacy, Binzhou Medical University, Yantai, 264003 China
| | - Xiuwen Wang
- grid.440653.00000 0000 9588 091XCollege of Pharmacy, Binzhou Medical University, Yantai, 264003 China
| |
Collapse
|
25
|
Styková E, Nemcová R, Maďar M, Bujňáková D, Mucha R, Gancarčíková S, Requena Domenech F. Antibiofilm Activity of Weissella spp. and Bacillus coagulans Isolated from Equine Skin against Staphylococcus aureus. Life (Basel) 2022; 12:2135. [PMID: 36556500 PMCID: PMC9787530 DOI: 10.3390/life12122135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
The aim of this study was to evaluate the antimicrobial and antibiofilm activity of Weissella cibaria, Weissella hellenica and Bacillus coagulans, isolated from equine skin, against biofilm-forming Staphylococcus aureus CCM 4223 and clinical isolate methicillin-resistant S. aureus (MRSA). Non-neutralized cell-free supernatants (nnCFS) of tested skin isolates completely inhibited the growth and biofilm formation of S. aureus strains and caused dispersion of the 24 h preformed biofilm in the range of 21-90%. The majority of the pH-neutralized cell-free supernatants (nCFS) of skin isolates inhibited the biofilm formation of both S. aureus strains in the range of 20-100%. The dispersion activity of B. coagulans nCFS ranged from 17 to 77% and was significantly lower than that of nnCFS, except for B. coagulans 3T27 against S. aureus CCM 4223. Changes in the growth of S. aureus CCM 4223 in the presence of catalase- or trypsin-treated W. hellenica 4/2D23 and W. cibaria 4/8D37 nCFS indicated the role of peroxides and/or bacteriocin in their antimicrobial activities. For the first time, the presence of the fenD gene, associated with biosurfactants production, was detected in B. coagulans. The results of this study showed that selected isolates may have the potential for the prevention and treatment of biofilm-forming S. aureus infections.
Collapse
Affiliation(s)
- Eva Styková
- Clinic of Horses, University Veterinary Hospital, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
| | - Radomíra Nemcová
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
| | - Marián Maďar
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
| | - Dobroslava Bujňáková
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Šoltésovej 4, 040 01 Košice, Slovakia
| | - Rastislav Mucha
- Institute of Neurobiology, Biomedical Research Center of the Slovak Academy of Sciences, Šoltésovej 4, 040 01 Košice, Slovakia
| | - Soňa Gancarčíková
- Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia
| | | |
Collapse
|
26
|
Zhu L, Zhang H, Wang S, Zhao A, Qu L, Xiong W, Alam MA, Ma W, Lv Y, Xu J. Screening a Panel of Acid-producing Strains by Developing a High-throughput Method. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-022-0146-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
27
|
NAUREEN ZAKIRA, BONETTI GABRIELE, MEDORI MARIACHIARA, AQUILANTI BARBARA, VELLUTI VALERIA, MATERA GIUSEPPINA, IACONELLI AMERIGO, BERTELLI MATTEO. Foods of the Mediterranean diet: lacto-fermented food, the food pyramid and food combinations. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2022; 63:E28-E35. [PMID: 36479486 PMCID: PMC9710393 DOI: 10.15167/2421-4248/jpmh2022.63.2s3.2744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The Mediterranean diet proved to be one of the healthiest diets in the word. It has several beneficial effects and it prevents many non-communicable diseases, such as cancer, cardiovascular diseases, and obesity. Before being a culinary regime, the Mediterranean diet is characterized by specific cultural heritages and traditions, also influencing the lifestyle of the populations. The Mediterranean diet follows the so-called food pyramid, comprising several food combinations. Indeed, it is mainly composed by vegetables, fish and dairy products, while red meat and sweets are poorly consumed. Processed foods are mainly avoided, apart from lacto-fermented ones, the first processed foods consumed by humans. Food fermentation by microorganisms not only improves the functionality of bioactive metabolites, but also increases the shelf life and organoleptic properties of the food. Lactic acid bacteria play a vital role in transforming the food constituents, thereby enhancing their nutritional and functional properties. In addition, these foods introduce beneficial bacteria into gut microbiota, thus maintaining a healthy gut microbiome and corresponding gut-brain axis, thus providing an overall improvement in health and a reduced risk of non-communicable diseases and metabolic disorders. This review will focus on the Mediterranean diet, on its characterising food pyramid and food combinations, and on lacto-fermented foods, one of the components of the Mediterranean diet with the most beneficial effects.
Collapse
Affiliation(s)
| | | | - MARIA CHIARA MEDORI
- MAGI’S LAB, Rovereto (TN), Italy
- Correspondence: Maria Chiara Medori, MAGI’S LAB, Rovereto (TN), 38068, Italy. E-mail:
| | - BARBARA AQUILANTI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - VALERIA VELLUTI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - GIUSEPPINA MATERA
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - AMERIGO IACONELLI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - MATTEO BERTELLI
- MAGI EUREGIO, Bolzano, Italy
- MAGI’S LAB, Rovereto (TN), Italy
- MAGISNAT, Peachtree Corners (GA), USA
| |
Collapse
|
28
|
Borin GP, Oliveira JVDC. Assessing the intracellular primary metabolic profile of Trichoderma reesei and Aspergillus niger grown on different carbon sources. FRONTIERS IN FUNGAL BIOLOGY 2022; 3:998361. [PMID: 37746225 PMCID: PMC10512294 DOI: 10.3389/ffunb.2022.998361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/29/2022] [Indexed: 09/26/2023]
Abstract
Trichoderma reesei and Aspergillus niger are efficient biological platforms for the production of various industrial products, including cellulases and organic acids. Nevertheless, despite the extensive research on these fungi, integrated analyses of omics-driven approaches are still missing. In this study, the intracellular metabolic profile of T. reesei RUT-C30 and A. niger N402 strains grown on glucose, lactose, carboxymethylcellulose (CMC), and steam-exploded sugarcane bagasse (SEB) as carbon sources for 48 h was analysed by proton nuclear magnetic resonance. The aim was to verify the changes in the primary metabolism triggered by these substrates and use transcriptomics data from the literature to better understand the dynamics of the observed alterations. Glucose and CMC induced higher fungal growth whereas fungi grown on lactose showed the lowest dry weight. Metabolic profile analysis revealed that mannitol, trehalose, glutamate, glutamine, and alanine were the most abundant metabolites in both fungi regardless of the carbon source. These metabolites are of particular interest for the mobilization of carbon and nitrogen, and stress tolerance inside the cell. Their concomitant presence indicates conserved mechanisms adopted by both fungi to assimilate carbon sources of different levels of recalcitrance. Moreover, the higher levels of galactose intermediates in T. reesei suggest its better adaptation in lactose, whereas glycolate and malate in CMC might indicate activation of the glyoxylate shunt. Glycerol and 4-aminobutyrate accumulated in A. niger grown on CMC and lactose, suggesting their relevant role in these carbon sources. In SEB, a lower quantity and diversity of metabolites were identified compared to the other carbon sources, and the metabolic changes and higher xylanase and pNPGase activities indicated a better utilization of bagasse by A. niger. Transcriptomic analysis supported the observed metabolic changes and pathways identified in this work. Taken together, we have advanced the knowledge about how fungal primary metabolism is affected by different carbon sources, and have drawn attention to metabolites still unexplored. These findings might ultimately be considered for developing more robust and efficient microbial factories.
Collapse
Affiliation(s)
- Gustavo Pagotto Borin
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), São Paulo, Brazil
- Graduate Program in Genetics and Molecular Biology, Institute of Biology, University of Campinas (UNICAMP), São Paulo, Brazil
| | - Juliana Velasco de Castro Oliveira
- Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), São Paulo, Brazil
- Graduate Program in Genetics and Molecular Biology, Institute of Biology, University of Campinas (UNICAMP), São Paulo, Brazil
| |
Collapse
|
29
|
Chatterjee S, Gatreddi S, Gupta S, Nevarez JL, Rankin JA, Turmo A, Hu J, Hausinger RP. Unveiling the mechanisms and biosynthesis of a novel nickel-pincer enzyme. Biochem Soc Trans 2022; 50:1187-1196. [PMID: 35960008 PMCID: PMC9880988 DOI: 10.1042/bst20220490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 01/31/2023]
Abstract
The nickel-pincer nucleotide (NPN) coenzyme, a substituted pyridinium mononucleotide that tri-coordinates nickel, was first identified covalently attached to a lysine residue in the LarA protein of lactate racemase. Starting from nicotinic acid adenine dinucleotide, LarB carboxylates C5 of the pyridinium ring and hydrolyzes the phosphoanhydride, LarE converts the C3 and C5 carboxylates to thiocarboxylates, and LarC incorporates nickel to form a C-Ni and two S-Ni bonds, during the biosynthesis of this cofactor. LarB uses a novel carboxylation mechanism involving the transient formation of a cysteinyl-pyridinium adduct. Depending on the source of the enzyme, LarEs either catalyze a sacrificial sulfur transfer from a cysteinyl side chain resulting in the formation of dehydroalanine or they utilize a [4Fe-4S] cluster bound by three cysteine residues to accept and transfer a non-core sulfide atom. LarC is a CTP-dependent enzyme that cytidinylylates its substrate, adds nickel, then hydrolyzes the product to release NPN and CMP. Homologs of the four lar genes are widely distributed in microorganisms, with some species containing multiple copies of larA whereas others lack this gene, consistent with the cofactor serving other functions. Several LarA-like proteins were shown to catalyze racemase or epimerase activities using 2-hydroxyacid substrates other than lactic acid. Thus, lactate racemase is the founding member of a large family of NPN-containing enzymes.
Collapse
Affiliation(s)
- Shramana Chatterjee
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
| | - Santhosh Gatreddi
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA
| | - Swati Gupta
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
| | - Jorge L. Nevarez
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Joel A. Rankin
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
| | - Aiko Turmo
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA
| | - Jian Hu
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Robert P. Hausinger
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA
| |
Collapse
|
30
|
Pau S, Tan LC, Arriaga S, Lens PNL. Lactic acid fermentation of food waste at acidic conditions in a semicontinuous system: effect of HRT and OLR changes. BIOMASS CONVERSION AND BIOREFINERY 2022; 14:10979-10994. [PMID: 38698923 PMCID: PMC11060974 DOI: 10.1007/s13399-022-03201-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/27/2022] [Accepted: 08/08/2022] [Indexed: 05/05/2024]
Abstract
Lactic acid production through fermentation is an established technology, however, improvements are necessary to reduce the process costs and to decrease its market price. Lactic acid is used in many industrial sectors and its market has increased in the last decade for its use as the raw material for polylactic acid product. Using food waste as a cheap and renewable substrate, as well as fermentation at uncontrolled pH, helps to make the production cheaper and to simplify the downstream purification process. Lactic acid production at acidic conditions and the role of varying organic loading rate (OLR) and hydraulic retention time (HRT) were tested in two different semicontinuous batch fermentation systems. Reactor performances indicated that lactic acid fermentation was still possible at pH < 3.5 and even up to a pH of 2.95. The highest lactic acid production was recorded at 14-day HRT, 2.14 g VS/L·day OLR, and pH 3.11 with a maximum lactic acid concentration of 8.72 g/L and a relative yield of 0.82 g lactate/g carbohydrates. The fermentation microbial community was dominated by Lactobacillus strains, the organism mainly responsible for lactic acid conversion from carbohydrates. This study shows that low pH fermentation is a key parameter to improve lactic acid production from food waste in a semicontinuous system. Acidic pH favored both the selection of Lactobacillus strains and inhibited VFA producers from utilizing lactic acid as primary substrate, thus promoting the accumulation of lactic acid. Finally, production yields tend to decrease with high OLR and low HRT, while lactic acid production rates showed the opposite trend.
Collapse
Affiliation(s)
- Simone Pau
- National University of Ireland, University Road, GalwayGalway, Ireland
| | - Lea Chua Tan
- National University of Ireland, University Road, GalwayGalway, Ireland
| | - Sonia Arriaga
- National University of Ireland, University Road, GalwayGalway, Ireland
- Environmental Sciences Department, Instituto Potosino de Investigación Científica Y Tecnológica, San Luis Potosí, Mexico
| | - Piet N. L. Lens
- National University of Ireland, University Road, GalwayGalway, Ireland
| |
Collapse
|
31
|
Liu M, Huo M, Liu C, Guo L, Ding Y, Ma Q, Qi Q, Xian M, Zhao G. Lysine acetylation of Escherichia coli lactate dehydrogenase regulates enzyme activity and lactate synthesis. Front Bioeng Biotechnol 2022; 10:966062. [PMID: 36051589 PMCID: PMC9424733 DOI: 10.3389/fbioe.2022.966062] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/27/2022] [Indexed: 11/17/2022] Open
Abstract
As an evolutionarily conserved posttranslational modification, protein lysine acetylation plays important roles in many physiological and metabolic processes. However, there are few reports about the applications of lysine acetylation in metabolic regulations. Lactate is a main byproduct in microbial fermentation, and itself also an important bulk chemical with considerable commercial values in many fields. Lactate dehydrogenase (LdhA) is the key enzyme catalyzing lactate synthesis from pyruvate. Here, we reported that Escherichia coli LdhA can be acetylated and the acetylated lysine sites were identified by mass spectrometry. The effects and regulatory mechanisms of acetylated sites on LdhA activity were characterized. Finally, lysine acetylation was successfully used to regulate the lactate synthesis. LdhA (K9R) mutant overexpressed strain improved the lactate titer and glucose conversion efficiency by 1.74 folds than that of wild-type LdhA overexpressed strain. LdhA (K154Q-K248Q) mutant can inhibit lactate accumulation and improve 3HP production. Our study established a paradigm for lysine acetylation in lactate synthesis regulation and suggested that lysine acetylation may be a promising strategy to improve the target production and conversion efficiency in microbial synthesis. The application of lysine acetylation in regulating lactate synthesis also provides a reference for the treatment of lactate-related diseases.
Collapse
Affiliation(s)
- Min Liu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Meitong Huo
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Changshui Liu
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Likun Guo
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Yamei Ding
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Qingjun Ma
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Qingsheng Qi
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Mo Xian
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
- *Correspondence: Mo Xian, ; Guang Zhao,
| | - Guang Zhao
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
- *Correspondence: Mo Xian, ; Guang Zhao,
| |
Collapse
|
32
|
Zhao S, Wang L, Sun W, Yang Z, Chen X, Huang Y, Li H, Hao A, Wang H, Liu G. Synergistic sterilization effects produced by weak electrolysis process in simulated industrial circulating cooling water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
33
|
Ghosh S, Nag M, Lahiri D, Sarkar T, Pati S, Kari ZA, Nirmal NP, Edinur HA, Ray RR. Engineered Biofilm: Innovative Nextgen Strategy for Quality Enhancement of Fermented Foods. Front Nutr 2022; 9:808630. [PMID: 35479755 PMCID: PMC9036442 DOI: 10.3389/fnut.2022.808630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 03/11/2022] [Indexed: 11/22/2022] Open
Abstract
Microbial communities within fermented food (beers, wines, distillates, meats, fishes, cheeses, breads) products remain within biofilm and are embedded in a complex extracellular polymeric matrix that provides favorable growth conditions to the indwelling species. Biofilm acts as the best ecological niche for the residing microbes by providing food ingredients that interact with the fermenting microorganisms' metabolites to boost their growth. This leads to the alterations in the biochemical and nutritional quality of the fermented food ingredients compared to the initial ingredients in terms of antioxidants, peptides, organoleptic and probiotic properties, and antimicrobial activity. Microbes within the biofilm have altered genetic expression that may lead to novel biochemical pathways influencing their chemical and organoleptic properties related to consumer acceptability. Although microbial biofilms have always been linked to pathogenicity owing to its enhanced antimicrobial resistance, biofilm could be favorable for the production of amino acids like l-proline and L-threonine by engineered bacteria. The unique characteristics of many traditional fermented foods are attributed by the biofilm formed by lactic acid bacteria and yeast and often, multispecies biofilm can be successfully used for repeated-batch fermentation. The present review will shed light on current research related to the role of biofilm in the fermentation process with special reference to the recent applications of NGS/WGS/omics for the improved biofilm forming ability of the genetically engineered and biotechnologically modified microorganisms to bring about the amelioration of the quality of fermented food.
Collapse
Affiliation(s)
- Sreejita Ghosh
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, India
| | - Moupriya Nag
- Department of Biotechnology, University of Engineering & Management, Kolkata, India
| | - Dibyajit Lahiri
- Department of Biotechnology, University of Engineering & Management, Kolkata, India
| | - Tanmay Sarkar
- Department of Food Processing Technology, Malda Polytechnic, West Bengal State Council of Technical Education, Government of West Bengal, Malda, India
| | - Siddhartha Pati
- NatNov Bioscience Private Limited, Balasore, India
- Skills Innovation & Academic Network (SIAN) Institute, Association for Biodiversity Conservation and Research (ABC), Balasore, India
| | - Zulhisyam Abdul Kari
- Faculty of Agro Based Industry, Universiti Malaysia Kelantan, Kota Bharu, Malaysia
| | | | - Hisham Atan Edinur
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Rina Rani Ray
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, India
| |
Collapse
|
34
|
Rocha GA, Ferreira RB. Antimicrobial polysaccharides obtained from natural sources. Future Microbiol 2022; 17:701-716. [PMID: 35392662 DOI: 10.2217/fmb-2021-0257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
With the increase in resistance to conventional antibiotics among bacterial pathogens, the search for new antimicrobials becomes more and more necessary. Although most studies focus on the discovery of antimicrobial peptides for the development of new antibiotics, several others in the literature have described polysaccharides with the same biological activity with the potential for use as therapeutic alternatives. Here we review the currently available literature on antimicrobial polysaccharides isolated from different sources to demonstrate that there are several possible unconventional carbohydrate polymers that could act as therapeutic alternatives in the battle against drug-resistant pathogens.
Collapse
Affiliation(s)
- Giulia A Rocha
- Departamento de Microbiologia Médica Instituto de Microbiologia Paulo de Góes CCS, Bloco I2-028, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brasil
| | - Rosana Br Ferreira
- Departamento de Microbiologia Médica Instituto de Microbiologia Paulo de Góes CCS, Bloco I2-028, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brasil
| |
Collapse
|
35
|
Wang Z, Ma S, Huang J, Li L, Sun B, Tian X, Wang X. Biochemical properties of type I sourdough affected by wheat bran dietary fibre during fermentation. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhen Wang
- College of Food Science and Engineering Henan University of Technology Zhengzhou Henan 450001 China
| | - Sen Ma
- College of Food Science and Engineering Henan University of Technology Zhengzhou Henan 450001 China
| | - Jihong Huang
- College of Biological Engineering Henan University of Technology Zhengzhou Henan 450001 China
| | - Li Li
- College of Food Science and Engineering Henan University of Technology Zhengzhou Henan 450001 China
| | - Binghua Sun
- College of Food Science and Engineering Henan University of Technology Zhengzhou Henan 450001 China
| | - Xiaoling Tian
- College of Food Science and Engineering Henan University of Technology Zhengzhou Henan 450001 China
| | - Xiaoxi Wang
- College of Food Science and Engineering Henan University of Technology Zhengzhou Henan 450001 China
| |
Collapse
|
36
|
Edwards C, McNerney CC, Lawton LA, Palmer J, Macgregor K, Jack F, Cockburn P, Plummer A, Lovegrove A, Wood A. Recoverable resources from pot ale & spent wash from Scotch Whisky production. RESOURCES, CONSERVATION, AND RECYCLING 2022; 179:106114. [PMID: 35370357 PMCID: PMC8803549 DOI: 10.1016/j.resconrec.2021.106114] [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: 09/08/2021] [Revised: 12/08/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
Scotch Whisky is an important global commodity which generates extensive co-product known as pot ale or spent wash (> 10 L co-product per L whisky). Whilst this is often used as fertiliser or animal feed, a proportion requires disposal resulting in cost to the distillery along with the negative impact on the carbon footprint due to transportation. This study examined the composition of the soluble fraction of pot ale from twenty-two distilleries in Scotland in order to assess the potential for resource recovery and transition to a more circular economy. The results reinforced previous studies, demonstrating that pot ale is an excellent source of protein with a potential for recovery >150, 000 t per annum in Scotland based on Whisky production data. Lactic acid, an important industrial platform chemical, was the major organic acid produced with concentrations ranging from 0.3 to 6.6 g L -1, representing a potential opportunity for recovery for applications such as manufacture of biodegradable polylactic acid for plastics (> 15,000 t per annum based on mean values). Other important platform chemicals, succinic acid and lysine were also identified and considered in sufficient amounts for future use. Pot ale was also shown to contain significant amounts of critical raw materials, magnesium and phosphate, which could be reclaimed for use in fertiliser/feed supporting the development of a new circular economy whilst at the same time reducing the burden of mining and transportation on the environment. The data in this study demonstrated a potential 13.8 kt recoverable phosphate per annum representing more than half of the annual fertiliser consumption in Scotland. Whisky co-products can contribute to sustainable energy, food and platform chemicals with the added value that metal concentrations are not sufficiently high to prevent its utilisation.
Collapse
Affiliation(s)
- Christine Edwards
- The School of Pharmacy and Life Science, Robert Gordon University, Aberdeen, AB10 7GJ, United Kingdom
| | - Calum C. McNerney
- The School of Pharmacy and Life Science, Robert Gordon University, Aberdeen, AB10 7GJ, United Kingdom
| | - Linda A. Lawton
- The School of Pharmacy and Life Science, Robert Gordon University, Aberdeen, AB10 7GJ, United Kingdom
| | - Joseph Palmer
- The School of Pharmacy and Life Science, Robert Gordon University, Aberdeen, AB10 7GJ, United Kingdom
| | - Kenneth Macgregor
- The Scotch Whisky Research Institute, The Robertson Trust Building, Research Avenue North, Riccarton, Edinburgh, EH14 4AP, United Kingdom
| | - Frances Jack
- The Scotch Whisky Research Institute, The Robertson Trust Building, Research Avenue North, Riccarton, Edinburgh, EH14 4AP, United Kingdom
| | - Peter Cockburn
- Diageo, International Technical Centre, Glenochil, Menstrie, Clackmannanshire, Scotland, FK11 7ES, United Kingdom
| | - Amy Plummer
- Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom
| | - Alison Lovegrove
- Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom
| | - Abigail Wood
- Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom
| |
Collapse
|
37
|
Yankov D. Fermentative Lactic Acid Production From Lignocellulosic Feedstocks: From Source to Purified Product. Front Chem 2022; 10:823005. [PMID: 35308791 PMCID: PMC8931288 DOI: 10.3389/fchem.2022.823005] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/21/2022] [Indexed: 01/10/2023] Open
Abstract
The second (lignocellulosic biomass and industrial wastes) and third (algal biomass) generation feedstocks gained substantial interest as a source of various value-added chemicals, produced by fermentation. Lactic acid is a valuable platform chemical with both traditional and newer applications in many industries. The successful fractionation, separation, and hydrolysis of lignocellulosic biomass result in sugars’ rich raw material for lactic acid fermentation. This review paper aims to summarize the investigations and progress in the last 5 years in lactic acid production from inexpensive and renewable resources. Different aspects are discussed—the type of raw materials, pretreatment and detoxification methods, lactic acid-producers (bacteria, fungi, and yeasts), use of genetically manipulated microorganisms, separation techniques, different approaches of process organization, as well as main challenges, and possible solutions for process optimization.
Collapse
|
38
|
Abd El-Malek F, Rofeal M, Zabed HM, Nizami AS, Rehan M, Qi X. Microorganism-mediated algal biomass processing for clean products manufacturing: Current status, challenges and future outlook. FUEL 2022; 311:122612. [DOI: 10.1016/j.fuel.2021.122612] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
39
|
Zúñiga A, Camacho M, Chang HJ, Fristot E, Mayonove P, Hani EH, Bonnet J. Engineered l-Lactate Responding Promoter System Operating in Glucose-Rich and Anoxic Environments. ACS Synth Biol 2021; 10:3527-3536. [PMID: 34851606 PMCID: PMC8689689 DOI: 10.1021/acssynbio.1c00456] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Indexed: 12/19/2022]
Abstract
Bacteria equipped with genetically encoded lactate biosensors are promising tools for biopharmaceutical production, diagnostics, and cellular therapies. However, many applications involve glucose-rich and anoxic environments, in which current whole-cell lactate biosensors show low performance. Here we engineer an optimized, synthetic lactate biosensor system by repurposing the natural LldPRD promoter regulated by the LldR transcriptional regulator. We removed glucose catabolite and anoxic repression by designing a hybrid promoter, containing LldR operators and tuned both regulator and reporter gene expressions to optimize biosensor signal-to-noise ratio. The resulting lactate biosensor, termed ALPaGA (A Lactate Promoter Operating in Glucose and Anoxia), can operate in glucose-rich, aerobic and anoxic conditions. We show that ALPaGA works reliably in the probiotic chassisEscherichia coliNissle 1917 and can detect endogenous l-lactate produced by 3D tumor spheroids with an improved dynamic range. In the future, the ALPaGA system could be used to monitor bioproduction processes and improve the specificity of engineered bacterial cancer therapies by restricting their activity to the lactate-rich microenvironment of solid tumors.
Collapse
Affiliation(s)
- Ana Zúñiga
- Centre de Biologie Structurale (CBS),
INSERM U1054, CNRS UMR5048, University of
Montpellier, 29 Rue de Navacelles, Montpellier 34090, France
| | - Miguel Camacho
- Centre de Biologie Structurale (CBS),
INSERM U1054, CNRS UMR5048, University of
Montpellier, 29 Rue de Navacelles, Montpellier 34090, France
| | - Hung-Ju Chang
- Centre de Biologie Structurale (CBS),
INSERM U1054, CNRS UMR5048, University of
Montpellier, 29 Rue de Navacelles, Montpellier 34090, France
| | - Elsa Fristot
- Centre de Biologie Structurale (CBS),
INSERM U1054, CNRS UMR5048, University of
Montpellier, 29 Rue de Navacelles, Montpellier 34090, France
| | - Pauline Mayonove
- Centre de Biologie Structurale (CBS),
INSERM U1054, CNRS UMR5048, University of
Montpellier, 29 Rue de Navacelles, Montpellier 34090, France
| | - El-Habib Hani
- Centre de Biologie Structurale (CBS),
INSERM U1054, CNRS UMR5048, University of
Montpellier, 29 Rue de Navacelles, Montpellier 34090, France
| | - Jerome Bonnet
- Centre de Biologie Structurale (CBS),
INSERM U1054, CNRS UMR5048, University of
Montpellier, 29 Rue de Navacelles, Montpellier 34090, France
| |
Collapse
|
40
|
Ibrahim M, Raman K. Two-species community design of lactic acid bacteria for optimal production of lactate. Comput Struct Biotechnol J 2021; 19:6039-6049. [PMID: 34849207 PMCID: PMC8605394 DOI: 10.1016/j.csbj.2021.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 11/01/2021] [Accepted: 11/07/2021] [Indexed: 01/03/2023] Open
Abstract
Microbial communities that metabolise pentose and hexose sugars are useful in producing high-value chemicals, resulting in the effective conversion of raw materials to the product, a reduction in the production cost, and increased yield. Here, we present a computational analysis approach called CAMP (Co-culture/Community Analyses for Metabolite Production) that simulates and identifies appropriate communities to produce a metabolite of interest. To demonstrate this approach, we focus on the optimal production of lactate from various Lactic Acid Bacteria. We used genome-scale metabolic models (GSMMs) belonging to Lactobacillus, Leuconostoc, and Pediococcus species from the Virtual Metabolic Human (VMH; https://vmh.life/) resource and well-curated GSMMs of L. plantarum WCSF1 and L. reuteri JCM 1112. We analysed 1176 two-species communities using a constraint-based modelling method for steady-state flux-balance analysis of communities. Flux variability analysis was used to detect the maximum lactate flux in the communities. Using glucose or xylose as substrates separately or in combination resulted in either parasitism, amensalism, or mutualism being the dominant interaction behaviour in the communities. Interaction behaviour between members of the community was deduced based on variations in the predicted growth rates of monocultures and co-cultures. Acetaldehyde, ethanol, acetate, among other metabolites, were found to be cross-fed between community members. L. plantarum WCSF1 was found to be a member of communities with high lactate yields. In silico community optimisation strategies to predict reaction knock-outs for improving lactate flux were implemented. Reaction knock-outs of acetate kinase, phosphate acetyltransferase, and fumarate reductase in the communities were found to enhance lactate production.
Collapse
Affiliation(s)
- Maziya Ibrahim
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, India
- Centre for Integrative Biology and Systems mEdicine (IBSE), IIT Madras, India
- Robert Bosch Centre for Data Science and Artificial Intelligence (RBC-DSAI), IIT Madras, India
| | - Karthik Raman
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, India
- Centre for Integrative Biology and Systems mEdicine (IBSE), IIT Madras, India
- Robert Bosch Centre for Data Science and Artificial Intelligence (RBC-DSAI), IIT Madras, India
- Corresponding author at: Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, IIT Madras, India.
| |
Collapse
|
41
|
Horue M, Rivero Berti I, Cacicedo ML, Castro GR. Microbial production and recovery of hybrid biopolymers from wastes for industrial applications- a review. BIORESOURCE TECHNOLOGY 2021; 340:125671. [PMID: 34333348 DOI: 10.1016/j.biortech.2021.125671] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
Agro-industrial wastes to be a global concern since agriculture and industrial processes are growing exponentially with the fast increase of the world population. Biopolymers are complex molecules produced by living organisms, but also found in many wastes or derived from wastes. The main drawbacks for the use of polymers are the high costs of the polymer purification processes from waste and the scale-up in the case of biopolymer production by microorganisms. However, the use of biopolymers at industrial scale for the development of products with high added value, such as food or biomedical products, not only can compensate the primary costs of biopolymer production, but also improve local economies and environmental sustainability. The present review describes some of the most relevant aspects related to the synthesis of hybrid materials and nanocomposites based on biopolymers for the development of products with high-added value.
Collapse
Affiliation(s)
- Manuel Horue
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, (B1900AJI), La Plata, Buenos Aires, Argentina
| | - Ignacio Rivero Berti
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, (B1900AJI), La Plata, Buenos Aires, Argentina
| | - Maximiliano L Cacicedo
- Children's Hospital, University Medical Center, Johannes Gutenberg-University, Mainz, Germany
| | - Guillermo R Castro
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, (B1900AJI), La Plata, Buenos Aires, Argentina; Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC). Partner Laboratory of the Max Planck Institute for Biophysical Chemistry (MPIbpC, MPG). Centro de Estudios Interdisciplinarios (CEI), Universidad Nacional de Rosario, Maipú 1065, S2000 Rosario, Santa Fe, Argentina.
| |
Collapse
|
42
|
Jang BK, Ju Y, Jeong D, Jung SK, Kim CK, Chung YS, Kim SR. l-Lactic Acid Production Using Engineered Saccharomyces cerevisiae with Improved Organic Acid Tolerance. J Fungi (Basel) 2021; 7:jof7110928. [PMID: 34829217 PMCID: PMC8624227 DOI: 10.3390/jof7110928] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 11/16/2022] Open
Abstract
Lactic acid is mainly used to produce bio-based, bio-degradable polylactic acid. For industrial production of lactic acid, engineered Saccharomyces cerevisiae can be used. To avoid cellular toxicity caused by lactic acid accumulation, pH-neutralizing agents are used, leading to increased production costs. In this study, lactic acid-producing S. cerevisiae BK01 was developed with improved lactic acid tolerance through adaptive laboratory evolution (ALE) on 8% lactic acid. The genetic basis of BK01 could not be determined, suggesting complex mechanisms associated with lactic acid tolerance. However, BK01 had distinctive metabolomic traits clearly separated from the parental strain, and lactic acid production was improved by 17% (from 102 g/L to 119 g/L). To the best of our knowledge, this is the highest lactic acid titer produced by engineered S. cerevisiae without the use of pH neutralizers. Moreover, cellulosic lactic acid production by BK01 was demonstrated using acetate-rich buckwheat husk hydrolysates. Particularly, BK01 revealed improved tolerance against acetic acid of the hydrolysates, a major fermentation inhibitor of lignocellulosic biomass. In short, ALE with a high concentration of lactic acid improved lactic acid production as well as acetic acid tolerance of BK01, suggesting a potential for economically viable cellulosic lactic acid production.
Collapse
Affiliation(s)
- Byeong-Kwan Jang
- Major in Food Application Technology, School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (B.-K.J.); (Y.J.); (D.J.); (S.-K.J.)
| | - Yebin Ju
- Major in Food Application Technology, School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (B.-K.J.); (Y.J.); (D.J.); (S.-K.J.)
| | - Deokyeol Jeong
- Major in Food Application Technology, School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (B.-K.J.); (Y.J.); (D.J.); (S.-K.J.)
| | - Sung-Keun Jung
- Major in Food Application Technology, School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (B.-K.J.); (Y.J.); (D.J.); (S.-K.J.)
| | - Chang-Kil Kim
- Department of Horticulture, Kyungpook National University, Daegu 41566, Korea;
| | - Yong-Suk Chung
- Department of Plant Resources and Environment, Jeju National University, Jeju 63243, Korea
- Correspondence: (Y.-S.C.); (S.-R.K.)
| | - Soo-Rin Kim
- Major in Food Application Technology, School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea; (B.-K.J.); (Y.J.); (D.J.); (S.-K.J.)
- Correspondence: (Y.-S.C.); (S.-R.K.)
| |
Collapse
|
43
|
Brézulier D, Chaigneau L, Jeanne S, Lebullenger R. The Challenge of 3D Bioprinting of Composite Natural Polymers PLA/Bioglass: Trends and Benefits in Cleft Palate Surgery. Biomedicines 2021; 9:1553. [PMID: 34829782 PMCID: PMC8615666 DOI: 10.3390/biomedicines9111553] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 11/22/2022] Open
Abstract
Cleft lip and palate is the fourth most common congenital malformation. Its prevalence is about 1 in 750 to 1 in 2000 live births. The consequences of this malformation are major: maxillary growth deficit, unaesthetic appearance, phonation disorders, difficulty in eating, and psycho-social disorders. Cleft palate repair establishes the division between the oral and nasal cavities. The alveolar bone graft is a key step. Different sites of autogenous bone harvesting are used, the most common being the iliac crest. Nevertheless, the large number of complications associated with harvesting has led to the use of substitute biomaterials. Bioactive glasses, discovered in 1969, are a group of synthetic silica-based materials with bone-bonding properties. Although 45S5 granular composition is commonly used in bone surgery to repair critical defects, it is only rarely used in the repair of cleft palates because this galenic form is only moderately adapted. However, advances in bone tissue engineering allow the shaping of three-dimensional scaffolds, which support colonization by host cells. Recent advances in computer-aided design/computer-aided manufacturing (CAD/CAM) have even led to the 3D printing of scaffolds combining 45S5 bioglass with a natural and biocompatible poly-lactic acid matrix. The shape of the parts is customized and adapted to the particular shape of the critical bone defects. The objective of this literature review is to highlight the particularities of alveolar defects subsequent to facial clefts, then to detail the characteristics of the materials and technologies used to elaborate 3D matrices by bioprinting. Finally, we will explore research directions regarding their use in reconstructive surgery of cleft palates.
Collapse
Affiliation(s)
- Damien Brézulier
- CNRS, University of Rennes, ISCR-UMR 6226, 35000 Rennes, France; (L.C.); (S.J.); (R.L.)
- Pôle Odontologie, CHU Rennes, University of Rennes, 35043 Rennes, France
| | - Louis Chaigneau
- CNRS, University of Rennes, ISCR-UMR 6226, 35000 Rennes, France; (L.C.); (S.J.); (R.L.)
| | - Sylvie Jeanne
- CNRS, University of Rennes, ISCR-UMR 6226, 35000 Rennes, France; (L.C.); (S.J.); (R.L.)
- Pôle Odontologie, CHU Rennes, University of Rennes, 35043 Rennes, France
| | - Ronan Lebullenger
- CNRS, University of Rennes, ISCR-UMR 6226, 35000 Rennes, France; (L.C.); (S.J.); (R.L.)
| |
Collapse
|
44
|
Esquivel-Hernández DA, Pennacchio A, Torres-Acosta MA, Parra-Saldívar R, de Souza Vandenberghe LP, Faraco V. Multi-product biorefinery from Arthrospira platensis biomass as feedstock for bioethanol and lactic acid production. Sci Rep 2021; 11:19309. [PMID: 34588465 PMCID: PMC8481326 DOI: 10.1038/s41598-021-97803-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 07/20/2021] [Indexed: 02/08/2023] Open
Abstract
With the aim to reach the maximum recovery of bulk and specialty bioproducts while minimizing waste generation, a multi-product biorefinery for ethanol and lactic acid production from the biomass of cyanobacterium Arthrospira platensis was investigated. Therefore, the residual biomass resulting from different pretreatments consisting of supercritical fluid extraction (SF) and microwave assisted extraction with non-polar (MN) and polar solvents (MP), previously applied on A. platensis to extract bioactive metabolites, was further valorized. In particular, it was used as a substrate for fermentation with Saccharomyces cerevisiae LPB-287 and Lactobacillus acidophilus ATCC 43121 to produce bioethanol (BE) and lactic acid (LA), respectively. The maximum concentrations achieved were 3.02 ± 0.07 g/L of BE by the MN process at 120 rpm 30 °C, and 9.67 ± 0.05 g/L of LA by the SF process at 120 rpm 37 °C. An economic analysis of BE and LA production was carried out to elucidate the impact of fermentation scale, fermenter costs, production titer, fermentation time and cyanobacterial biomass production cost. The results indicated that the critical variables are fermenter scale, equipment cost, and product titer; time process was analyzed but was not critical. As scale increased, costs tended to stabilize, but also more product was generated, which causes production costs per unit of product to sharply decrease. The median value of production cost was US$ 1.27 and US$ 0.39, for BE and LA, respectively, supporting the concept of cyanobacterium biomass being used for fermentation and subsequent extraction to obtain ethanol and lactic acid as end products from A. platensis.
Collapse
Affiliation(s)
- Diego A. Esquivel-Hernández
- grid.419886.a0000 0001 2203 4701Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, 64849 Monterrey, NL Mexico ,grid.9486.30000 0001 2159 0001Present Address: Departamento de Microbiologia Molecular, Instituto de Biotecnologia, Universidad Nacional Autónoma de México, Ave. Universidad 2001, 62210 Cuernavaca, Morelos Mexico ,grid.9486.30000 0001 2159 0001Present Address: Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Circuito Exterior s/n, 04510 Mexico City, Mexico
| | - Anna Pennacchio
- grid.4691.a0000 0001 0790 385XDepartment of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy
| | - Mario A. Torres-Acosta
- grid.83440.3b0000000121901201Department of Biochemical Engineering, The Advance Centre for Biochemical Engineering, University College London, London, WC1E 6BT UK
| | - Roberto Parra-Saldívar
- grid.419886.a0000 0001 2203 4701Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, 64849 Monterrey, NL Mexico
| | - Luciana Porto de Souza Vandenberghe
- grid.20736.300000 0001 1941 472XDepartment of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Coronel Francisco H. dos Santos Avenue, 210, Curitiba, 81531-980 Brazil
| | - Vincenza Faraco
- grid.4691.a0000 0001 0790 385XDepartment of Chemical Sciences, University of Naples “Federico II”, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy
| |
Collapse
|
45
|
Recent Advances in Lactic Acid Production by Lactic Acid Bacteria. Appl Biochem Biotechnol 2021; 193:4151-4171. [PMID: 34519919 DOI: 10.1007/s12010-021-03672-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/03/2021] [Indexed: 02/07/2023]
Abstract
Lactic acid can synthesize high value-added chemicals such as poly lactic acid. In order to further minimize the cost of lactic acid production, some effective strategies (e.g., effective mutagenesis and metabolic engineering) have been applied to increase productive capacity of lactic acid bacteria. In addition, low-cost cheap raw materials (e.g., cheap carbon source and cheap nitrogen source) are also used to reduce the cost of lactic acid production. In this review, we summarized the recent developments in lactic acid production, including efficient strain modification technology (high-efficiency mutagenesis means, adaptive laboratory evolution, and metabolic engineering), the use of low-cost cheap raw materials, and also discussed the future prospects of this field, which could promote the development of lactic acid industry.
Collapse
|
46
|
Camesasca L, de Mattos JA, Vila E, Cebreiros F, Lareo C. Lactic acid production by Carnobacterium sp. isolated from a maritime Antarctic lake using eucalyptus enzymatic hydrolysate. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 31:e00643. [PMID: 34168965 PMCID: PMC8209079 DOI: 10.1016/j.btre.2021.e00643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 06/02/2021] [Accepted: 06/06/2021] [Indexed: 11/25/2022]
Abstract
Eucalyptus enzymatic hydrolysate contained mixture of glucose and xylose sugars. Carnobacterium sp. produced lactic acid from eucalyptus enzymatic hydrolysate. Glucose was consumed faster and completely rather than xylose during fermentation. Fed-batch fermentation improved lactic acid production and reached 30 g/L.
Carnobacterium sp., a lactic acid bacterium isolated from a maritime Antarctic lake, was evaluated for lactic acid production from a lignocellulosic hydrolysate. Eucalyptus sawdust, a residue from pulp and paper industries, was subjected to alkaline pretreatment to enhance its enzymatic hydrolysis. Fermentations were performed without and with pH control using eucalyptus enzymatic hydrolysate containing a mixture of glucose and xylose sugars. The sugars were successfully converted into lactic acid in 24 h, resulting in 7.6 g/L of lactic acid and a product yield of 0.50 g/g for pH controlled at 6.5. Fed-batch fermentation performed at a controlled pH of 6.5 improved both the lactic acid production (30 g/L) and the biomass growth (4.2 g/L). l-lactic acid optical purity higher than 95 % was obtained. These results demonstrated the potential usage of Carnobacterium sp in l-lactic acid production from eucalyptus.
Collapse
|
47
|
Dorau R, Liu J, Solem C, Jensen PR. Metabolic Engineering of Lactic Acid Bacteria. Metab Eng 2021. [DOI: 10.1002/9783527823468.ch15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
48
|
An aptly industrialized bioprocess for lactic acid production from corn stover using thermotolerant microbial consortia. Bioprocess Biosyst Eng 2021; 44:2445-2454. [PMID: 34304345 DOI: 10.1007/s00449-021-02616-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 07/16/2021] [Indexed: 10/20/2022]
Abstract
Chemical pretreatment of lignocellulosic biomass is a critical step in the conversion of lignocellulose to biofuels and biochemical. The main drawback of this pretreatment process is the formation of inhibitors which exhibit combined toxicity to microorganisms and result to low product concentrations and yields. In this study, the selection of microbial consortia by enrichment on hydrolysate of H2SO4-pretreated corn stover (pre-CS) without detoxification has been investigated as an efficient way to develop new strategies for lignocellulose utilization. The analysis of cattle stomach-dervied microbial consortia domesticated to degrade hydrolysate of pre-CS to produce lactic acid (LA) at different temperatures was investigated. Bacterial 16S rRNA gene amplicon sequencing analyses indicated that the three microbial consortia were taxonomically distinct and Enterococcus became dominant at high temperature. The highest glucose consumption rate was observed at 45 °C, while the three microbial consortia showed similar consumption rates of xylose and arabinose. The selected microbial consortia DUT37, DUT45 and DUT47 showed preferable resistances to inhibitors in hydrolysate of pre-CS and abilities of xylose utilization. A batch simultaneous saccharification and fermentation (SSF) process was developed by microbial consortium DUT47 at 47 °C to produce LA from pre-CS under non-detoxified and non-sterile conditions. The LA concentration and yield were 43.73 g/L and 0.50 g/g-corn stover (CS), respectively. Microbial consortium DUT47 has been shown to be suitable for LA production from H2SO4-pretreated corn stover without detoxification due to its thermophilic growth characteristics, robust tolerance of inhibitors, and the simultaneous utilization of glucose and xylose.
Collapse
|
49
|
High Performance of Biohydrogen Production in Packed-Filter Bioreactor via Optimizing Packed-Filter Position. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18147462. [PMID: 34299912 PMCID: PMC8304059 DOI: 10.3390/ijerph18147462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 11/17/2022]
Abstract
In this present investigation, a packed-filter bioreactor was employed to produce hydrogen utilizing an expired soft drink as a substrate. The effects of feeding substrate concentrations ranging from 19.51, 10.19, 5.34, 3.48, to 2.51 g total sugar/L were examined, and the position of the packed filter installed in the bioreactor at dimensionless heights (h/H) of 1/4, 2/4, 3/4, and 4/4 was studied. The results revealed that with a substrate concentration of 20 g total sugar/L and a hydraulic retention time (HRT) of 1 h, a packed filter placed at the half-height position of the bioreactor (h/H 2/4) has the optimal hydrogen production rate, hydrogen yield, and average biomass concentration in the bioreactor, resulting in 55.70 ± 2.42 L/L/d, 0.90 ± 0.06 mol H2/mol hexose, and 17.86 ± 1.09 g VSS/L. When feeding substrate concentrations varied from 20, 10, to 5 g total sugar/L with the packed-filter position at h/H 2/4, Clostridium sp., Clostridium tyrobutyricum, and Bifidobacterium crudilactis were the predominant bacteria community. Finally, it was discovered that the packed-filter bioreactor can produce stable hydrogen in high-strength organic effluent.
Collapse
|
50
|
Li J, Shi S, Wang Y, Jiang Z. Integrated production of optically pure l-lactic acid from paper mill sludge by simultaneous saccharification and co-fermentation (SSCF). WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 129:35-46. [PMID: 34023801 DOI: 10.1016/j.wasman.2021.05.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
Paper mill sludge (PMS) raises critical environmental issues due to its disposal problem, but its high sugar content and well-dispersed structure make it a great feedstock for biochemical production. The technical feasibility of integrating cellulase enzyme production into lactic acid (LA) fermentation from PMS was investigated in this study. The low ash content of PMS suggests a great potential for cellulase production. The enzyme produced using PMS without any treatment gave an activity of 7.8 FPU/ml, a performance comparable to the commercial enzyme, Cellic CTec 2. The LA yield from PMS with in-house enzyme was 64.7% and 73.7% at the enzyme loading of 10 and 15 FPU/g-glucan, respectively. The LA obtained was optically pure L- isomer with over 99% purity. The optimal condition of LA production by Bacillus coagulans was found to be 50 °C and pH 5.3 (with 50 g/L CaCO3). The nutrient effect of yeast extract (YE) and corn steep liquor (CSL) was substrate dependent, and CSL could substitute YE as an inexpensive nutrient when using PMS as a substrate.
Collapse
Affiliation(s)
- Jing Li
- Alabama Center for Paper and Bioresource Engineering, Department of Chemical Engineering, Auburn University, Auburn, AL 36849, United States
| | - Suan Shi
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, United States
| | - Yi Wang
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, United States
| | - Zhihua Jiang
- Alabama Center for Paper and Bioresource Engineering, Department of Chemical Engineering, Auburn University, Auburn, AL 36849, United States.
| |
Collapse
|