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Tafazzoli K, Ghavami M, Khosravi-Darani K. Investigation of impact of siderophore and process variables on production of iron enriched Saccharomyces boulardii by Plackett-Burman design. Sci Rep 2024; 14:22813. [PMID: 39353969 PMCID: PMC11445229 DOI: 10.1038/s41598-024-70467-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 08/16/2024] [Indexed: 10/03/2024] Open
Abstract
The primary cause of anemia worldwide is due to poor diet and iron deficiency. Iron (Fe) enriched yeast can be the most effective way to manage anemia because of the capability for biotransformation of mineral to organic and bioavailable iron. To overcome the low richness of yeast, the use of siderophore as cellular iron carriers is a new approach. In this research, for the first time the potential of siderophore in increasing the Fe enrichment of Saccharomyces boulardii (S. boulardii), which is important because of its probiotic properties and resistance to different stresses, has been investigated to produce of potential iron supplements. For this purpose, siderophore was produced by Pseudomonas aeruginosa (P. aeruginosa). Siderophore impact, along with ten other independent process variables, has been studied on the efficiency of iron biotransformation by the Plackett-Burman design (PBD). The results showed that the highest biotransformation yield was 17.77 mg Fe/g dry cell weight (DCW) in the highest biomass weight of 9 g/l. Iron concentration is the most important variable, with contributions of 46% and 70.79% for biomass weight and biotransformation, respectively, followed by fermentation time, agitation speed, and KH2PO4 concentration. But increasing the level of siderophore and zinc led to a significant negative effect. siderophore inefficiency may be attributed to the absence of membrane receptors for pyoverdine (Pvd) and pyochelin (Pch) siderophores. Also, the steric hindrance of the cell wall mannan, the stickiness and sediment ability of the yeast, can create limitations in the absorption of elements. Such yeast can be used as a potential source of iron even for vegetarians and vegans in the form of medicinal and fortified food products to improve the treatment of anemia. It is recommended that further research be focused on increasing the iron enrichment of yeast by overcoming the structural barrier of the cell wall, investigating factors affecting membrane permeability and iron transport potential of other types of siderophores.
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Affiliation(s)
- Kiyana Tafazzoli
- Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mehrdad Ghavami
- Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Kianoush Khosravi-Darani
- Department of Food Technology Research, Faculty of Nutrition Sciences and Food Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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2
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Xiao D, Driller M, Dielentheis‐Frenken M, Haala F, Kohl P, Stein K, Blank LM, Tiso T. Advances in Aureobasidium research: Paving the path to industrial utilization. Microb Biotechnol 2024; 17:e14535. [PMID: 39075758 PMCID: PMC11286673 DOI: 10.1111/1751-7915.14535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/10/2024] [Indexed: 07/31/2024] Open
Abstract
We here explore the potential of the fungal genus Aureobasidium as a prototype for a microbial chassis for industrial biotechnology in the context of a developing circular bioeconomy. The study emphasizes the physiological advantages of Aureobasidium, including its polyextremotolerance, broad substrate spectrum, and diverse product range, making it a promising candidate for cost-effective and sustainable industrial processes. In the second part, recent advances in genetic tool development, as well as approaches for up-scaled fermentation, are described. This review adds to the growing body of scientific literature on this remarkable fungus and reveals its potential for future use in the biotechnological industry.
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Affiliation(s)
- Difan Xiao
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Marielle Driller
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Marie Dielentheis‐Frenken
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Frederick Haala
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Philipp Kohl
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Karla Stein
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Lars M. Blank
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
| | - Till Tiso
- iAMB – Institute of Applied Microbiology, ABBt – Aachen Biology and BiotechnologyRWTH Aachen UniversityAachenGermany
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3
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Yi Y, Jin X, Chen M, Coldea TE, Zhao H. Surfactant-mediated bio-manufacture: A unique strategy for promoting microbial biochemicals production. Biotechnol Adv 2024; 73:108373. [PMID: 38704106 DOI: 10.1016/j.biotechadv.2024.108373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/03/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
Biochemicals are widely used in the medicine and food industries and are more efficient and safer than synthetic chemicals. The amphipathic surfactants can interact with the microorganisms and embed the extracellular metabolites, which induce microbial metabolites secretion and biosynthesis, performing an attractive prospect of promoting the biochemical production. However, the commonness and differences of surfactant-mediated bio-manufacture in various fields are largely unexplored. Accordingly, this review comprehensively summarized the properties of surfactants, different application scenarios of surfactant-meditated bio-manufacture, and the mechanism of surfactants increasing metabolites production. Various biochemical productions such as pigments, amino acids, and alcohols could be enhanced using the cloud point and the micelles of surfactants. Besides, the amphiphilicity of surfactants also promoted the utilization of fermentation substrates, especially lignocellulose and waste sludge, by microorganisms, indirectly increasing the metabolites production. The increase in target metabolites production was attributed to the surfactants changing the permeability and composition of the cell membrane, hence improving the secretion ability of microorganisms. Moreover, surfactants could regulate the energy metabolism, the redox state and metabolic flow in microorganisms, which induced target metabolites synthesis. This review aimed to broaden the application fields of surfactants and provide novel insights into the production of microbial biochemicals.
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Affiliation(s)
- Yunxin Yi
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaofan Jin
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Teodora Emilia Coldea
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca 400372, Romania
| | - Haifeng Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Research Institute for Food Nutrition and Human Health, Guangzhou 510640, China.
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4
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Tharmasothirajan A, Melcr J, Linney J, Gensch T, Krumbach K, Ernst KM, Brasnett C, Poggi P, Pitt AR, Goddard AD, Chatgilialoglu A, Marrink SJ, Marienhagen J. Membrane manipulation by free fatty acids improves microbial plant polyphenol synthesis. Nat Commun 2023; 14:5619. [PMID: 37699874 PMCID: PMC10497605 DOI: 10.1038/s41467-023-40947-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: 12/21/2022] [Accepted: 08/16/2023] [Indexed: 09/14/2023] Open
Abstract
Microbial synthesis of nutraceutically and pharmaceutically interesting plant polyphenols represents a more environmentally friendly alternative to chemical synthesis or plant extraction. However, most polyphenols are cytotoxic for microorganisms as they are believed to negatively affect cell integrity and transport processes. To increase the production performance of engineered cell factories, strategies have to be developed to mitigate these detrimental effects. Here, we examine the accumulation of the stilbenoid resveratrol in the cell membrane and cell wall during its production using Corynebacterium glutamicum and uncover the membrane rigidifying effect of this stilbenoid experimentally and with molecular dynamics simulations. A screen of free fatty acid supplements identifies palmitelaidic acid and linoleic acid as suitable additives to attenuate resveratrol's cytotoxic effects resulting in a three-fold higher product titer. This cost-effective approach to counteract membrane-damaging effects of product accumulation is transferable to the microbial production of other polyphenols and may represent an engineering target for other membrane-active bioproducts.
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Affiliation(s)
- Apilaasha Tharmasothirajan
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany
| | - Josef Melcr
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG, Groningen, The Netherlands
| | - John Linney
- College of Health and Life Sciences, Aston University, Birmingham, B4 7ET, UK
| | - Thomas Gensch
- Institute for Information Processing, IBI-1: Molecular and Cellular Physiology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Karin Krumbach
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Karla Marlen Ernst
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Christopher Brasnett
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG, Groningen, The Netherlands
| | - Paola Poggi
- Remembrane Srl, via San Francesco 40, 40026, Imola, Italy
| | - Andrew R Pitt
- College of Health and Life Sciences, Aston University, Birmingham, B4 7ET, UK
- Manchester Institute of Biotechnology and Department of Chemistry, University of Manchester, Manchester, UK
| | - Alan D Goddard
- College of Health and Life Sciences, Aston University, Birmingham, B4 7ET, UK
| | | | - Siewert J Marrink
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG, Groningen, The Netherlands
| | - Jan Marienhagen
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany.
- Institute of Biotechnology, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany.
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Kachrimanidou V, Papadaki A, Papapostolou H, Alexandri M, Gonou-Zagou Z, Kopsahelis N. Ganoderma lucidum Mycelia Mass and Bioactive Compounds Production through Grape Pomace and Cheese Whey Valorization. Molecules 2023; 28:6331. [PMID: 37687160 PMCID: PMC10489755 DOI: 10.3390/molecules28176331] [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: 07/23/2023] [Revised: 08/11/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Numerous compounds obtained from the medicinal mushroom Ganoderma lucidum have evidenced renowned bioactive characteristics. Controlled fermentation to generate fungal mycelia confers several advantages, specifically when the valorization of agro-industrial streams as fermentation feedstocks is included. Submerged fermentation of a newly isolated Greek strain of G. lucidum was performed using conventional synthetic media and, also, grape pomace extract (GPE) and cheese whey permeate (CWP) under static and shaking conditions. Under shaking conditions, maximum biomass with GPE and supplementation with organic nitrogen reached 17.8 g/L. The addition of an elicitor in CWP resulted in a significant improvement in biomass production that exceeded synthetic media. Overall, agitation demonstrated a positive impact on biomass productivity and, therefore, on process optimization. Crude intracellular and extracellular polysaccharides were extracted and evaluated regarding antioxidant activity and polysaccharide and protein content. FTIR analysis confirmed the preliminary chemical characterization of the crude extracts. This study introduces the design of a bioprocessing scenario to utilize food industry by-products as onset feedstocks for fungal bioconversions to obtain potential bioactive molecules within the concept of bioeconomy.
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Affiliation(s)
- Vasiliki Kachrimanidou
- Department of Food Science and Technology, Ionian University, Argostoli, 28100 Kefalonia, Greece; (V.K.); (A.P.)
| | - Aikaterini Papadaki
- Department of Food Science and Technology, Ionian University, Argostoli, 28100 Kefalonia, Greece; (V.K.); (A.P.)
| | - Harris Papapostolou
- Department of Food Science and Technology, Ionian University, Argostoli, 28100 Kefalonia, Greece; (V.K.); (A.P.)
| | - Maria Alexandri
- Department of Food Science and Technology, Ionian University, Argostoli, 28100 Kefalonia, Greece; (V.K.); (A.P.)
| | - Zacharoula Gonou-Zagou
- Department of Ecology and Systematics, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece
| | - Nikolaos Kopsahelis
- Department of Food Science and Technology, Ionian University, Argostoli, 28100 Kefalonia, Greece; (V.K.); (A.P.)
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6
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Zhou MJ, Hu LX, Hu WS, Huang JB, Huang XL, Gao XL, Luo YN, Xue ZL, Liu Y. Enhanced vitamin K2 production by engineered Bacillus subtilis during leakage fermentation. World J Microbiol Biotechnol 2023; 39:224. [PMID: 37291450 DOI: 10.1007/s11274-023-03671-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 06/01/2023] [Indexed: 06/10/2023]
Abstract
Menaquinone-7 (MK-7), a valuable member of the vitamin K2 series, is an essential nutrient for humans. It is used for treating coagulation disorders, and osteoporosis, promoting liver function recovery, and preventing cardiovascular diseases. In this study, to further improve the metabolic synthesis of MK-7 by the mutant strain, the effect of surfactants on the metabolic synthesis of MK-7 by the mutant strain Bacillus subtilis 168 KO-SinR (BS168 KO-SinR) was analyzed. The scanning electron microscopy and flow cytometry results showed that the addition of surfactants changed the permeability of the cell membrane of the mutant strain and the structural components of the biofilm. When 0.7% Tween-80 was added into the medium, the extracellular and intracellular synthesis of MK-7 reached 28.8 mg/L and 59.2 mg/L, respectively, increasing the total synthesis of MK-7 by 80.3%. Quantitative real-time PCR showed that the addition of surfactant significantly increased the expression level of MK-7 synthesis-related genes, and the electron microscopy results showed that the addition of surfactant changed the permeability of the cell membrane. The research results of this paper can serve as a reference for the industrial development of MK-7 prepared by fermentation.
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Affiliation(s)
- Meng-Jie Zhou
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Liu-Xiu Hu
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
- Anhui Zhang Hengchun Pharmaceutical Co., LTD, Wuhu, 241000, China
| | - Wen-Song Hu
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Jun-Bao Huang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Xi-Lin Huang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Xu-Li Gao
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Ya-Ni Luo
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
| | - Zheng-Lian Xue
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, China
| | - Yan Liu
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, China.
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Wuhu, 241000, China.
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7
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Using Machine Learning Methods to Predict the ß-Poly (L-Malic Acid) Production by Different Substrates Addition and Secondary Indexes in Strain Aureobasidium melanogenum. FERMENTATION 2022. [DOI: 10.3390/fermentation8120729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
ß-poly (L-malic acid) (PMLA) is a polyester ligated by malate subunits. It has a wide prospective application as an anti-cancer drug carrier, and its malate subunits have a great application in the food industry. The strain Aureoabsidium melanogenum could produce a high amount of PMLA during fermentation, and different substrates addition could influence the production. In this study, we directly added potassium acetate, corn steep liquor, MgSO4, MnSO4, vitamin B1, vitamin B2, and nicotinamide as the fermentation substrate to the basic fermentation medium based on a generated random matrix that represented the added value. The PMLA production and four secondary indexes, pH, biomass, osmotic pressure, and viscosity were measured after 144 h fermentation. Finally, a total of 212 samples were collected as the dataset, by which the machine learning methods were deployed to predict the PMLA production by different substrates’ concentrations and the secondary indexes. The results indicated that PMLA production was negatively correlated with corn steep liquor and betaine and positively correlated with potassium acetate. The PMLA production could be predicted using all different substrates’ concentrations with a Mean Absolute Error (MAE) of 4.164 g/L and with an MAE of 6.556 g/L by different secondary indexes. Finally, the convolutional neural network (CNN) was applied to predict the PMLA production by fermentation medium images, in which the collected images were categorized into three groups, 0–20 g/L, 21–40 g/L, and >41 g/L, based on the PMLA production. The CNN model could predict the production with high accuracy. The methods and results presented in this study provided new insight into evaluating different substrates concentration on PMLA production and demonstrating the possibility of using the convolutional neural network model in the PMLA fermentation industry.
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Wu N, Zhang J, Chen Y, Xu Q, Song P, Li Y, Li K, Liu H. Recent advances in microbial production of L-malic acid. Appl Microbiol Biotechnol 2022; 106:7973-7992. [PMID: 36370160 DOI: 10.1007/s00253-022-12260-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/19/2022] [Accepted: 10/23/2022] [Indexed: 11/14/2022]
Abstract
Over the last few decades, increasing concerns regarding fossil fuel depletion and excessive CO2 emissions have led to extensive fundamental studies and industrial trials regarding microbial chemical production. As an additive or precursor, L-malic acid has been shown to exhibit distinctive properties in the food, pharmaceutical, and daily chemical industries. L-malic acid is currently mainly fabricated through a fumarate hydratase-based biocatalytic conversion route, wherein petroleum-derived fumaric acid serves as a substrate. In this review, for the first time, we comprehensively describe the methods of malic acid strain transformation, raw material utilization, malic acid separation, etc., especially recent progress and remaining challenges for industrial applications. First, we summarize the various pathways involved in L-malic acid biosynthesis using different microorganisms. We also discuss several strain engineering strategies for improving the titer, yield, and productivity of L-malic acid. We illustrate the currently available alternatives for reducing production costs and the existing strategies for optimizing the fermentation process. Finally, we summarize the present challenges and future perspectives regarding the development of microbial L-malic acid production. KEY POINTS: • A range of wild-type, mutant, laboratory-evolved, and metabolically engineered strains which could produce L-malic acid were comprehensively described. • Alternative raw materials for reducing production costs and the existing strategies for optimizing the fermentation were sufficiently summarized. • The present challenges and future perspectives regarding the development of microbial L-malic acid production were elaboratively discussed.
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Affiliation(s)
- Na Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Jiahui Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Yaru Chen
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Qing Xu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Ping Song
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Yingfeng Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Ke Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China.
| | - Hao Liu
- MOE Key Laboratory of Industrial Fermentation Microbiology, College of Biotechnology, Tianjin University of Science & Technology, Tianjin, China. .,Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, Tianjin University of Science & Technology, Tianjin, China.
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9
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Xia J, Liu S, Jiao J, Qiu Z, Liu X, He A, Xu N, Xu J. Evaluation of enhancing effect of soybean oil on polymalic acid production by Aureobasidium pullulans HA-4D. Bioprocess Biosyst Eng 2022; 45:1673-1682. [DOI: 10.1007/s00449-022-02772-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/05/2022] [Indexed: 11/28/2022]
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10
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The signaling pathways involved in metabolic regulation and stress responses of the yeast-like fungi Aureobasidium spp. Biotechnol Adv 2021; 55:107898. [PMID: 34974157 DOI: 10.1016/j.biotechadv.2021.107898] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/23/2021] [Accepted: 12/23/2021] [Indexed: 12/22/2022]
Abstract
Aureobasidium spp. can use a wide range of substrates and are widely distributed in different environments, suggesting that they can sense and response to various extracellular signals and be adapted to different environments. It is true that their pullulan, lipid and liamocin biosynthesis and cell growth are regulated by the cAMP-PKA signaling pathway; Polymalate (PMA) and pullulan biosynthesis is controlled by the Ca2+ and TORC1 signaling pathways; the HOG1 signaling pathway determines high osmotic tolerance and high pullulan and liamocin biosynthesis; the Snf1/Mig1 pathway controls glucose repression on pullulan and liamocin biosynthesis; DHN-melanin biosynthesis and stress resistance are regulated by the CWI signaling pathway and TORC1 signaling pathway. In addition, the HSF1 pathway may control cell growth of some novel strains of A. melanogenum at 37 °C. However, the detailed molecular mechanisms of high temperature growth and thermotolerance of some novel strains of A. melanogenum and glucose derepression in A. melanogenum TN3-1 are still unclear.
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Meng Q, Chuai S, Chen L, Wang L, Cai G, Mao J, Gu Z, Shi G, Ding Z. Effect of surfactants on the production of polysaccharides from Schizophyllum commune through submerged fermentation. Int J Biol Macromol 2021; 192:210-218. [PMID: 34619278 DOI: 10.1016/j.ijbiomac.2021.09.191] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 11/17/2022]
Abstract
Schizophyllum commune (S. commune) polysaccharides are biomacromolecules with multiple biological activities and wide applications. In this study, polysaccharide production through submerged fermentation of S. commune using different surfactants was investigated. The addition of 1 g/L of polyoxyethylene sorbitan monooleate (Tween 80) at the beginning of the fermentation showed the best promotional effects on collective exopolysaccharide (EPS) production (which increased by 37.17%) while shortening the production cycle by 2 days. The monosaccharide composition of the EPS produced when the added Tween 80 was similar to that of the control; however, the molecular weight (Mw) was lower. Notably, the addition of Tween 80 significantly increased the ATP levels and the transcription levels of phosphoglucomutase and β-glucan synthase genes in the polysaccharide synthesis pathway. The addition of Tween 80 reduced the pellet size of the mycelium compared to that of the control, but did not significantly change the microstructure of the mycelial cells. This study proposes an efficient strategy for the production of polysaccharides through submerged fermentation of S. commune, and elucidates the detailed mechanism of using Tween 80 as a fermentation stimulatory reagent.
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Affiliation(s)
- Qi Meng
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi 214122, China
| | - ShiChen Chuai
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi 214122, China
| | - Lei Chen
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Lingling Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Guolin Cai
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi 214122, China; Jiangsu Industrial Technology Research Institute, Jiangnan University (Rugao) Food Biotechnology Research Institute, Nantong 226500, China
| | - Jinsheng Mao
- Jiangsu Industrial Technology Research Institute, Jiangnan University (Rugao) Food Biotechnology Research Institute, Nantong 226500, China
| | - Zhenghua Gu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi 214122, China
| | - Guiyang Shi
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi 214122, China
| | - Zhongyang Ding
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi 214122, China.
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12
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Zou X, Li S, Wang P, Li B, Feng Y, Yang ST. Sustainable production and biomedical application of polymalic acid from renewable biomass and food processing wastes. Crit Rev Biotechnol 2020; 41:216-228. [PMID: 33153315 DOI: 10.1080/07388551.2020.1844632] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Polymalic acid (PMA), a homopolymer of L-malic acid (MA) generated from a yeast-like fungus Aureobasidium pullulans, has unique properties and many applications in food, biomedical, and environmental fields. Acid hydrolysis of PMA, releasing the monomer MA, has become a novel process for the production of bio-based MA, which currently is produced by chemical synthesis using petroleum-derived feedstocks. Recently, current researches attempted to develop economically competitive process for PMA and MA production from renewable biomass feedstocks. Compared to lignocellulosic biomass, PMA and MA production from low-value food processing wastes or by-products, generated from corn, sugarcane, or soybean refinery industries, showed more economical and sustainable for developing a MA derivatives platform from biomass biorefinery to chemical conversion. In the review, we compared the process feasibility for PMA fermentation with lignocellulosic biomass and food process wastes. Some useful strategies for metabolic engineering are summarized. Its changeable applicability and future prospects in food and biomedical fields are also discussed.
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Affiliation(s)
- Xiang Zou
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Shanshan Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Pan Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Bingqin Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Yingying Feng
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
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13
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Yang X, Yang Y, Zhang Y, He J, Xie Y. Enhanced exopolysaccharide production in submerged fermentation of Ganoderma lucidum by Tween 80 supplementation. Bioprocess Biosyst Eng 2020; 44:47-56. [PMID: 32743719 DOI: 10.1007/s00449-020-02418-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 07/26/2020] [Indexed: 12/23/2022]
Abstract
Bioactive polysaccharides extracted from Ganoderma lucidum (G. lucidum) have been widely applied in food and medicine for their multiple functions. In this study, G. lucidum exopolysaccharide (EPS) production in submerged fermentation was stimulated by Tween 80. The addition of 0.25% Tween 80 on day 3 gave a maximum production of mycelial biomass and EPS, with an increase of 19.76 and 137.50%, respectively. Analysis of fermentation kinetics showed that glucose was consumed faster after adding Tween 80, while the expression of EPS biosynthesis-related genes and ATP generation were greatly improved. Moreover, Tween 80 resulted in the significant accumulation of reactive oxygen species and increased cell membrane and cell wall permeability. The EPS from Tween 80-containing medium had higher contents of carbohydrate and uronic acid, lower molecular weight, and higher antioxidant activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals than those of EPS produced in the absence of Tween 80. This study provides further evidence to clarify the stimulatory effects of Tween 80 in fermentation and provides a guide for the production of bioactive G. lucidum EPS.
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Affiliation(s)
- Xiaobing Yang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.
| | - Yingyin Yang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Yifan Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Jiahao He
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Yizhen Xie
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.,Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, 510663, China
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14
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Yin H, Gao C, Ye K, Zhao T, Sun A, Qiao C. Evaluation of surfactant effect on β-poly(L-malic acid) production by Aureobasidium pullulans. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1631718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Affiliation(s)
- Haisong Yin
- Key Laboratory of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Ministry of Education, Tianjin, China
- School of Bioengineering, Tianjin Modern Vocational Technology College, Tianjin, China
- Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin, China
| | - Cui Gao
- Key Laboratory of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Ministry of Education, Tianjin, China
- Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Kai Ye
- Key Laboratory of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Ministry of Education, Tianjin, China
- Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Tingbin Zhao
- Tianjin Huizhi Biotrans Bioengineering Co. Ltd, Tianjin, China
| | - Aiyou Sun
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Changsheng Qiao
- Key Laboratory of Industrial Fermentation Microbiology, Tianjin University of Science and Technology, Ministry of Education, Tianjin, China
- School of Bioengineering, Tianjin Modern Vocational Technology College, Tianjin, China
- Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
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15
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Zou X, Li T, Zhang X, Li H, Wang B. Optimization of the status of cell growth guided by an on-line biomass sensor for polymalic acid fermentation. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.12.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Zou X, Cheng C, Feng J, Song X, Lin M, Yang ST. Biosynthesis of polymalic acid in fermentation: advances and prospects for industrial application. Crit Rev Biotechnol 2019; 39:408-421. [DOI: 10.1080/07388551.2019.1571008] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Xiang Zou
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, Chongqing, PR China
| | - Chi Cheng
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Jun Feng
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, Chongqing, PR China
| | - Xiaodan Song
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, Chongqing, PR China
| | - Meng Lin
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
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17
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Li Q, Lei Y, Hu G, Lei Y, Dan D. Effects of Tween 80 on the liquid fermentation of Lentinus edodes. Food Sci Biotechnol 2018; 27:1103-1109. [PMID: 30263840 PMCID: PMC6085267 DOI: 10.1007/s10068-018-0339-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 02/13/2018] [Accepted: 02/19/2018] [Indexed: 11/30/2022] Open
Abstract
This paper explored the effects of Tween 80 on the biomass, intracellular polysaccharide (IPS) content, fermentation parameters, the pellets size of mycelium, and the antioxidant activity of IPS in Lentinus edodes liquid fermentation. With adding to Tween 80, the outputs of biomass and IPS increased during the L. edodes fermentation, respectively, while the reducing sugar content was decreased, as well as, the time courses of pH value were different. It was also shown that the addition of Tween 80 could protect the intact of pellets from breaking down. The effects of Tween 80 on the main structure of IPS were no obvious, and the IPS were revealed similar infrared spectrum, as was indicated by the infrared spectrum analysis. Improvements in the scavenging capacity of DPPH radicals of IPS were observed in Tween 80 treated group compared with the control group. Tween 80 exerts impacts on the liquid fermentation of L. edodes.
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Affiliation(s)
- Qiuyang Li
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, 430205 Hubei People’s Republic of China
| | - Yuguo Lei
- Hubei Yuguo Gu Ye Co., Ltd., Suizhou, 441300 Hubei People’s Republic of China
| | - Guoyuan Hu
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, 430205 Hubei People’s Republic of China
| | - Yuanzheng Lei
- Hubei Yuguo Gu Ye Co., Ltd., Suizhou, 441300 Hubei People’s Republic of China
| | - Dongmei Dan
- Hubei Yuguo Gu Ye Co., Ltd., Suizhou, 441300 Hubei People’s Republic of China
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18
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Xia J, Li R, He A, Xu J, Liu X, Li X, Xu J. Production of poly(β-l-malic acid) by Aureobasidium pullulans HA-4D under solid-state fermentation. BIORESOURCE TECHNOLOGY 2017; 244:289-295. [PMID: 28780262 DOI: 10.1016/j.biortech.2017.07.148] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 06/07/2023]
Abstract
Poly(β-l-malic acid) (PMA) production by Aureobasidium pullulans HA-4D was carried out through solid-state fermentation (SSF) using agro-industrial residues. Maximum PMA production (75.4mg/g substrate) was obtained from a mixed substrate of sweet potato residue and wheat bran (1:1, w/w) supplemented with NaNO3 (0.8%, w/w) and CaCO3 (2%, w/w), with an initial moisture content of 70% and inoculum size of 13% (v/w) for 8days. Repeated-batch SSF was successfully conducted for 5 cycles with a high productivity. The scanning electron microscopy showed that the yeast-like cells of A. pullulans HA-4D could grow well on the solid substrate surface. Moreover, the cost analysis showed that the unit price of PMA in SSF was much lower than that of SmF. This is the first report on PMA production via SSF, and this study provided a new method to produce PMA from inexpensive agro-industrial residues.
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Affiliation(s)
- Jun Xia
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Rongqing Li
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Aiyong He
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Jiaxing Xu
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Xiaoyan Liu
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Xiangqian Li
- Jiangsu Province Engineering Laboratory for Biomass Conversion and Process Integration, Huaiyin Institute of Technology, Huai'an 223300, China
| | - Jiming Xu
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China.
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19
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Li X, Wang D, Cai D, Zhan Y, Wang Q, Chen S. Identification and High-level Production of Pulcherrimin in Bacillus licheniformis DW2. Appl Biochem Biotechnol 2017; 183:1323-1335. [PMID: 28523413 DOI: 10.1007/s12010-017-2500-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 05/01/2017] [Indexed: 11/25/2022]
Abstract
Pulcherrimin, a potential biocontrol agent produced by microorganisms, has the promising applications in the agricultural, medical, and food areas, and the low yield of pulcherrimin has hindered its applications. In this study, the red pigment produced by Bacillus licheniformis DW2 was identified as pulcherrimin through the spectrometry analysis and genetic manipulation, and the component of the medium used for pulcherrimin production was optimized. Based on our results, the addition of 1.0 g L-1 Tween 80 could improve the yield of pulcherrimin, and glucose and (NH4)2SO4 were served as the optimal carbon and nitrogen sources for pulcherrimin synthesis, respectively. Furthermore, an orthogonal array design was applied for optimization of the medium. Under optimized condition, the maximum yield of pulcherrimin was 331.17 mg L-1, 5.30-fold higher than that of the initial condition, which was the maximum yield reported for pulcherrimin production. Collectively, this study provided a promising strain and a feasible approach to achieve the high-level production of antimicrobial pulcherrimin.
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Affiliation(s)
- Xiaoyun Li
- Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, College of Life Sciences, Hubei University, No. 368Youyi Avenue, Wuchang District, Wuhan, 430062, Hubei, People's Republic of China
| | - Dong Wang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China
| | - Dongbo Cai
- Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, College of Life Sciences, Hubei University, No. 368Youyi Avenue, Wuchang District, Wuhan, 430062, Hubei, People's Republic of China
| | - Yangyang Zhan
- Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, College of Life Sciences, Hubei University, No. 368Youyi Avenue, Wuchang District, Wuhan, 430062, Hubei, People's Republic of China
| | - Qin Wang
- Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, College of Life Sciences, Hubei University, No. 368Youyi Avenue, Wuchang District, Wuhan, 430062, Hubei, People's Republic of China
| | - Shouwen Chen
- Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, College of Life Sciences, Hubei University, No. 368Youyi Avenue, Wuchang District, Wuhan, 430062, Hubei, People's Republic of China.
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
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20
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Xia J, Xu J, Liu X, Xu J, Wang X, Li X. Economic co-production of poly(malic acid) and pullulan from Jerusalem artichoke tuber by Aureobasidium pullulans HA-4D. BMC Biotechnol 2017; 17:20. [PMID: 28231788 PMCID: PMC5324199 DOI: 10.1186/s12896-017-0340-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 02/17/2017] [Indexed: 11/23/2022] Open
Abstract
Background poly(L-malic acid) (PMA) is a water-soluble polyester with many attractive properties in medicine and food industries, but the high cost of PMA fermentation has restricted its further application for large-scale production. To overcome this problem, PMA production from Jerusalem artichoke tubers was successfully performed. Additionally, a valuable exopolysaccharide, pullulan, was co-produced with PMA by Aureobasidum pullulans HA-4D. Results The Jerusalem artichoke medium for PMA and pullulan co-production contained only 100 g/L hydrolysate sugar, 30 g/L CaCO3 and 1 g/L NaNO3. Compared with the glucose medium, the Jerusalem artichoke medium resulted in a higher PMA concentration (114.4 g/L) and a lower pullulan concentration (14.3 g/L) in a 5 L bioreactor. Meanwhile, the activity of pyruvate carboxylase and malate dehydrogenas was significantly increased, while the activity of α-phosphoglucose mutase, UDP-glucose pyrophosphorylase and glucosyltransferase was not affected. To assay the economic-feasibility, large-scale production in a 1 t fermentor was performed, yielding 117.5 g/L PMA and 15.2 g/L pullulan. Conclusions In this study, an economical co-production system for PMA and pullulan from Jerusalem artichoke was developed. The medium for PMA and pullulan co-production was significantly simplified when Jerusalem artichoke tubers were used. With the simplified medium, PMA production was obviously stimulated, which would be associated with the improved activity of pyruvate carboxylase and malate dehydrogenas. Electronic supplementary material The online version of this article (doi:10.1186/s12896-017-0340-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jun Xia
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, China.
| | - Jiaxing Xu
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, China
| | - Xiaoyan Liu
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, China
| | - Jiming Xu
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, China
| | - Xingfeng Wang
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, College of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an, 223300, China
| | - Xiangqian Li
- Jiangsu Province Engineering Laboratory for Biomass Conversion and Process Integration, Huaiyin Institute of Technology, Huai'an, 223300, China
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21
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Cheng C, Zhou Y, Lin M, Wei P, Yang ST. Polymalic acid fermentation by Aureobasidium pullulans for malic acid production from soybean hull and soy molasses: Fermentation kinetics and economic analysis. BIORESOURCE TECHNOLOGY 2017; 223:166-174. [PMID: 27792926 DOI: 10.1016/j.biortech.2016.10.042] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/15/2016] [Indexed: 06/06/2023]
Abstract
Polymalic acid (PMA) production by Aureobasidium pullulans ZX-10 from soybean hull hydrolysate supplemented with corn steep liquor (CSL) gave a malic acid yield of ∼0.4g/g at a productivity of ∼0.5g/L·h. ZX-10 can also ferment soy molasses, converting all carbohydrates including the raffinose family oligosaccharides to PMA, giving a high titer (71.9g/L) and yield (0.69g/g) at a productivity of 0.29g/L·h in fed-batch fermentation under nitrogen limitation. A higher productivity of 0.64g/L·h was obtained in repeated batch fermentation with cell recycle and CSL supplementation. Cost analysis for a 5000 MT plant shows that malic acid can be produced at $1.10/kg from soy molasses, $1.37/kg from corn, and $1.74/kg from soybean hull. At the market price of $1.75/kg, malic acid production from soy molasses via PMA fermentation offers an economically competitive process for industrial production of bio-based malic acid.
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Affiliation(s)
- Chi Cheng
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Yipin Zhou
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA; Bioprocessing Innovative Company, 4734 Bridle Path Ct., Dublin, OH 43017, USA
| | - Meng Lin
- Bioprocessing Innovative Company, 4734 Bridle Path Ct., Dublin, OH 43017, USA
| | - Peilian Wei
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA.
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Wei P, Cheng C, Lin M, Zhou Y, Yang ST. Production of poly(malic acid) from sugarcane juice in fermentation by Aureobasidium pullulans: Kinetics and process economics. BIORESOURCE TECHNOLOGY 2017; 224:581-589. [PMID: 27839861 DOI: 10.1016/j.biortech.2016.11.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 11/01/2016] [Accepted: 11/02/2016] [Indexed: 06/06/2023]
Abstract
Poly(β-l-malic acid) (PMA) is a biodegradable polymer with many potential biomedical applications. PMA can be readily hydrolyzed to malic acid (MA), which is widely used as an acidulant in foods and pharmaceuticals. PMA production from sucrose and sugarcane juice by Aureobasidium pullulans ZX-10 was studied in shake-flasks and bioreactors, confirming that sugarcane juice can be used as an economical substrate without any pretreatment or nutrients supplementation. A high PMA titer of 116.3g/L and yield of 0.41g/g were achieved in fed-batch fermentation. A high productivity of 0.66g/L·h was achieved in repeated-batch fermentation with cell recycle. These results compared favorably with those obtained from glucose and other biomass feedstocks. A process economic analysis showed that PMA could be produced from sugarcane juice at a cost of $1.33/kg, offering a cost-competitive bio-based PMA for industrial applications.
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Affiliation(s)
- Peilian Wei
- School of Biological and Chemical Engineering, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China; William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Chi Cheng
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA
| | - Meng Lin
- Bioprocessing Innovative Company, 4734 Bridle Path Ct., Dublin, OH 43017, USA
| | - Yipin Zhou
- Bioprocessing Innovative Company, 4734 Bridle Path Ct., Dublin, OH 43017, USA
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 West Woodruff Avenue, Columbus, OH 43210, USA.
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23
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Feng J, Yang J, Li X, Guo M, Wang B, Yang ST, Zou X. Reconstruction of a genome-scale metabolic model and in silico analysis of the polymalic acid producer Aureobasidium pullulans CCTCC M2012223. Gene 2016; 607:1-8. [PMID: 28043922 DOI: 10.1016/j.gene.2016.12.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 11/27/2016] [Accepted: 12/29/2016] [Indexed: 01/08/2023]
Abstract
Aureobasidium pullulans is a yeast-like fungus used for producing biopolymers e.g. polymalic acid (PMA) and pullulan. A high PMA producing strain, A. pullulans CCTCC M2012223, was isolated and sequenced in our previous study. To understand its metabolic performance, a genome-scale metabolic model, iZX637, consisting of 637 genes, 1347 reactions and 1133 metabolites, was reconstructed based on genome annotation and literature mining studies. The iZX637 model was validated by simulating cell growth, utilization of carbon and nitrogen sources, and gene essentiality analysis in A. pullulans. We further validated our model, designed a simulation program for the prediction of PMA production using experimental data, and further analyzed the carbon flux distribution and change with increasing PMA synthesis rates. Through the calculated flux distribution, NADPH- and NADH-dependent methylenetetrahydrofolate dehydrogenase (MTHFD) were found to be associated with the transfer of reducing equivalents from NADPH to NADH for supplementing NADH in the metabolic network. Furthermore, under the high PMA synthesis rate, a large amount of carbon flux was through pyruvate into malic acid via the reductive TCA cycle. Thus, pyruvate carboxylase, which can convert pyruvate to oxaloacetate with CO2 fixation, may also be an important target for PMA synthesis. These results illustrated that the model iZX637 was a powerful tool for optimization of A. pullulans metabolism and identification of targets for guiding metabolic engineering.
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Affiliation(s)
- Jun Feng
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, Chongqing 400715, PR China
| | - Jing Yang
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, Chongqing 400715, PR China
| | - Xiaorong Li
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, Chongqing 400715, PR China
| | - Meijin Guo
- State Key Laboratory of Bioreactor Engineering, East China University of Science & Technology, Shanghai 200237, PR China
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Chongqing 400044, PR China
| | - Shang-Tian Yang
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Xiang Zou
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, Chongqing 400715, PR China; Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Chongqing 400044, PR China.
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24
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Wang Y, Song X, Zhang Y, Wang B, Zou X. Effects of nitrogen availability on polymalic acid biosynthesis in the yeast-like fungus Aureobasidium pullulans. Microb Cell Fact 2016; 15:146. [PMID: 27549441 PMCID: PMC4994417 DOI: 10.1186/s12934-016-0547-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 08/15/2016] [Indexed: 12/03/2022] Open
Abstract
Background Polymalic acid (PMA) is a novel polyester polymer that has been broadly used in the medical and food industries. Its monomer, L-malic acid, is also a potential C4 platform chemical. However, little is known about the mechanism of PMA biosynthesis in the yeast-like fungus, Aureobasidium pullulans. In this study, the effects of different nitrogen concentration on cell growth and PMA biosynthesis were investigated via comparative transcriptomics and proteomics analyses, and a related signaling pathway was also evaluated. Results A high final PMA titer of 44.00 ± 3.65 g/L (49.9 ± 4.14 g/L of malic acid after hydrolysis) was achieved in a 5-L fermentor under low nitrogen concentration (2 g/L of NH4NO3), which was 18.3 % higher yield than that obtained under high nitrogen concentration (10 g/L of NH4NO3). Comparative transcriptomics profiling revealed that a set of genes, related to the ribosome, ribosome biogenesis, proteasome, and nitrogen metabolism, were significantly up- or down-regulated under nitrogen sufficient conditions, which could be regulated by the TOR signaling pathway. Fourteen protein spots were identified via proteomics analysis, and were found to be associated with cell division and growth, energy metabolism, and the glycolytic pathway. qRT-PCR further confirmed that the expression levels of key genes involved in the PMA biosynthetic pathway (GLK, CS, FUM, DAT, and MCL) and the TOR signaling pathway (GS, TOR1, Tap42, and Gat1) were upregulated due to nitrogen limitation. Under rapamycin stress, PMA biosynthesis was obviously inhibited in a dose-dependent manner, and the transcription levels of TOR1, MCL, and DAT were also downregulated. Conclusions The level of nitrogen could regulate cell growth and PMA biosynthesis. Low concentration of nitrogen was beneficial for PMA biosynthesis, which could upregulate the expression of key genes involved in the PMA biosynthesis pathway. Cell growth and PMA biosynthesis might be mediated by the TOR signaling pathway in response to nitrogen. This study will help us to deeply understand the molecular mechanisms of PMA biosynthesis, and to develop an effective process for the production of PMA and malic acid chemicals. Electronic supplementary material The online version of this article (doi:10.1186/s12934-016-0547-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yongkang Wang
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, 2 Tian Sheng Road, Beibei, Chongqing, 400715, People's Republic of China
| | - Xiaodan Song
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, 2 Tian Sheng Road, Beibei, Chongqing, 400715, People's Republic of China
| | - Yongjun Zhang
- Biotechnology Research Center, Southwest University, Chongqing, 400715, People's Republic of China
| | - Bochu Wang
- Ministry of Education, Key Laboratory of Biorheological Science and Technology (Chongqing University), Chongqing, 400044, People's Republic of China
| | - Xiang Zou
- College of Pharmaceutical Sciences, Chongqing Engineering Research Center for Pharmaceutical Process and Quality Control, Southwest University, 2 Tian Sheng Road, Beibei, Chongqing, 400715, People's Republic of China. .,Ministry of Education, Key Laboratory of Biorheological Science and Technology (Chongqing University), Chongqing, 400044, People's Republic of China.
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Sheng L, Tong Q, Ma M. Why sucrose is the most suitable substrate for pullulan fermentation by Aureobasidium pullulans CGMCC1234? Enzyme Microb Technol 2016; 92:49-55. [PMID: 27542744 DOI: 10.1016/j.enzmictec.2016.06.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 06/23/2016] [Accepted: 06/24/2016] [Indexed: 10/21/2022]
Abstract
This paper studies the metabolic pathway of sucrose in pullulan fermentation by Aureobasidium pullulans. Because of its high pullulan production, sucrose proved to be the best carbon source for pullulan synthesis by A. pullulans CGMCC1234 (36.3g/L). Compared to other carbon sources, A. pullulans cells reached the stationary phase more quickly in the presence of sucrose. The specific sugar types and concentrations occurring during pullulan fermentation were detected using High Performance Liquid Chromatography (HPLC). HPLC results revealed that sucrose did not simply break down into glucose and fructose in the medium employed. Kestose (22.69g/L) also accumulated during early stages of fermentation (24h), which reduced the osmotic pressure of the extracellular fluid and diminished the inhibition of cell growth and pullulan production. β-Fructofuranosidase activity strongly depended on the carbon source. Sucrose was the best inducer of β-fructofuranosidase production. However, β-fructofuranosidase production did not directly and/or proportionally correlate with the growth of A. pullulans cells.
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Affiliation(s)
- Long Sheng
- National R&D Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qunyi Tong
- The State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Meihu Ma
- National R&D Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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