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Haala F, Dielentheis-Frenken MRE, Brandt FM, Karmainski T, Blank LM, Tiso T. DoE-based medium optimization for improved biosurfactant production with Aureobasidium pullulans. Front Bioeng Biotechnol 2024; 12:1379707. [PMID: 38511129 PMCID: PMC10953688 DOI: 10.3389/fbioe.2024.1379707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 03/22/2024] Open
Abstract
Polyol lipids (a.k.a. liamocins) produced by the polyextremotolerant, yeast-like fungus Aureobasidium pullulans are amphiphilic molecules with high potential to serve as biosurfactants. So far, cultivations of A. pullulans have been performed in media with complex components, which complicates further process optimization due to their undefined composition. In this study, we developed and optimized a minimal medium, focusing on biosurfactant production. Firstly, we replaced yeast extract and peptone in the best-performing polyol lipid production medium to date with a vitamin solution, a trace-element solution, and a nitrogen source. We employed a design of experiments approach with a factor screening using a two-level-factorial design, followed by a central composite design. The polyol lipid titer was increased by 56% to 48 g L-1, and the space-time yield from 0.13 to 0.20 g L-1 h-1 in microtiter plate cultivations. This was followed by a successful transfer to a 1 L bioreactor, reaching a polyol lipid concentration of 41 g L-1. The final minimal medium allows the investigation of alternative carbon sources and the metabolic pathways involved, to pinpoint targets for genetic modifications. The results are discussed in the context of the industrial applicability of this robust and versatile fungus.
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Affiliation(s)
| | | | | | | | | | - Till Tiso
- Institute of Applied Microbiology, RWTH Aachen University, Aachen, Germany
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2
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Oskay M. Production, Partial Purification, and Characterization of Polygalacturonase from Aureobasidium pullulans P56 under Submerged Fermentation Using Agro-Industrial Wastes. Curr Microbiol 2022; 79:296. [PMID: 35994212 DOI: 10.1007/s00284-022-02991-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
Abstract
Polygalacturonase (PGase) production by Aureobasidium pullulans P56 under submerged fermentation was investigated using agro-industrial wastes and commercial carbon and nitrogen sources. The maximum PGase concentration was equivalent to 8.6 U/mL that was obtained in presence of citrus pectin at 150 rpm, 30 °C, pH = 5.5, and 60 h of fermentation conditions. However, a significant amount of enzyme production was also recorded upon the utilization of corncob (5.3 U/mL) and wheat bran (4.4 U/mL) as carbon sources. Amongst the different nitrogen sources, the highest enzyme production (8.2 U/mL) was obtained in presence of ammonium sulphate and yeast extract simultaneously at a ratio of 1:1. The enzyme was partially purified by gel filtration using Sephadex G50 equilibrated and washed with 50 mM-sodium acetate buffer. The obtained yield and specific activity were determined equivalent to 17% and 9.53 U/mg, respectively. The molecular weight of the partially purified enzyme was estimated as 54 kDa on SDS-PAGE. The conditions affecting the enzyme activity were determined and the highest enzyme activity was recorded at 40 °C and 4.5 pH. Amongst the tested metal ions, 2 and 5 mM of CaCl2 concentrations increased the enzymatic activity by 30%. Overall, the use of corncob (2.5%) to produce PGase by A. pullulans represents an attractive agro-industrial substrate.
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Affiliation(s)
- Mustafa Oskay
- Faculty of Sciences and Letters, Department of Biology, Section of Basic and Industrial Microbiology, Manisa Celal Bayar University, 45030, Manisa, Turkey.
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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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Application of Hierarchical Clustering to Analyze Solvent-Accessible Surface Area Patterns in Amycolatopsis lipases. BIOLOGY 2022; 11:biology11050652. [PMID: 35625380 PMCID: PMC9138565 DOI: 10.3390/biology11050652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/18/2022] [Accepted: 04/21/2022] [Indexed: 11/20/2022]
Abstract
Simple Summary Solvent-Accessible Surface Area (SASA) as the one dimensional structure property of the protein considers as the measuring the exposure of an amino acid residue to the solvent in one protein. It is an important structural property as the active sites of proteins are mostly located on the protein surfaces. The aim of this paper is to provide the clear information on different Amycolatopsis eburnea lipases based on the SASA patterns. This information could help in recognizing the structural stability and conformation as well as precise clustering them for revealing lipase evolution. Abstract The wealth of biological databases provides a valuable asset to understand evolution at a molecular level. This research presents the machine learning approach, an unsupervised agglomerative hierarchical clustering analysis of invariant solvent accessible surface areas and conserved structural features of Amycolatopsis eburnea lipases to exploit the enzyme stability and evolution. Amycolatopsis eburnea lipase sequences were retrieved from biological database. Six structural conserved regions and their residues were identified. Total Solvent Accessible Surface Area (SASA) and structural conserved-SASA with unsupervised agglomerative hierarchical algorithm were clustered lipases in three distinct groups (99/96%). The minimum SASA of nucleus residues was related to Lipase-4. It is clearly shown that the overall side chain of SASA was higher than the backbone in all enzymes. The SASA pattern of conserved regions clearly showed the evolutionary conservation areas that stabilized Amycolatopsis eburnea lipase structures. This research can bring new insight in protein design based on structurally conserved SASA in lipases with the help of a machine learning approach.
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Fatima S, Faryad A, Ataa A, Joyia FA, Parvaiz A. Microbial lipase production: A deep insight into the recent advances of lipase production and purification techniques. Biotechnol Appl Biochem 2020; 68:445-458. [PMID: 32881094 DOI: 10.1002/bab.2019] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Importance of enzymes is ever-rising particularly microbial lipases holding great industrial worth owing to their potential to catalyze a diverse array of chemical reactions in aqueous as well as nonaqueous settings. International lipase market is anticipated to cross USD 797.7 million till 2025, rising at a 6.2% compound annual growth rate from 2017 to 2025. The recent breakthrough in the field of lipase research is the generation of new and upgraded versions of lipases via molecular strategies. For example, integration of rational enzyme design and directed enzyme evolution to attain desired properties in lipases. Normally, purification of lipase with significant purity is achieved through a multistep procedure. Such multiple step approach of lipase purification entails both conventional and novel techniques. The present review attempts to provide an overview of different aspects of lipase production including fermentation techniques, factors affecting lipase production, and purification strategies, with the aim to assist researchers to pick a suitable technique for the production and purification of lipase.
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Affiliation(s)
- Samar Fatima
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan
| | - Amna Faryad
- Centre of Agricultural Biochemistry and Biotechnology, University of Agriculture, Faisalabad, Pakistan
| | - Asia Ataa
- Department of Biochemistry, Baha-ud-Din Zakariya, University Multan, Multan, Pakistan
| | - Faiz Ahmad Joyia
- Centre of Agricultural Biochemistry and Biotechnology, University of Agriculture, Faisalabad, Pakistan
| | - Aqsa Parvaiz
- Centre of Agricultural Biochemistry and Biotechnology, University of Agriculture, Faisalabad, Pakistan
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6
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Non-Saccharomyces in Winemaking: Source of Mannoproteins, Nitrogen, Enzymes, and Antimicrobial Compounds. FERMENTATION-BASEL 2020. [DOI: 10.3390/fermentation6030076] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Traditionally, non-Saccharomyces yeasts have been considered contaminants because of their high production of metabolites with negative connotations in wine. This aspect has been changing in recent years due to an increased interest in the use of these yeasts in the winemaking process. The majority of these yeasts have a low fermentation power, being used in mixed fermentations with Saccharomyces cerevisiae due to their ability to produce metabolites of enological interest, such as glycerol, fatty acids, organic acids, esters, higher alcohols, stable pigments, among others. Additionally, existing literature reports various compounds derived from the cellular structure of non-Saccharomyces yeasts with benefits in the winemaking process, such as polysaccharides, proteins, enzymes, peptides, amino acids, or antimicrobial compounds, some of which, besides contributing to improving the quality of the wine, can be used as a source of nitrogen for the fermentation yeasts. These compounds can be produced exogenously, and later incorporated into the winemaking process, or be uptake directly by S. cerevisiae from the fermentation medium after their release via lysis of non-Saccharomyces yeasts in sequential fermentations.
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Gautério GV, da Silva LGG, Hübner T, da Rosa Ribeiro T, Kalil SJ. Maximization of xylanase production by Aureobasidium pullulans using a by-product of rice grain milling as xylan source. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101511] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Li Y, Liu TJ, Zhao MJ, Zhang H, Feng FQ. Screening, purification, and characterization of an extracellular lipase from Aureobasidium pullulans isolated from stuffed buns steamers. J Zhejiang Univ Sci B 2019; 20:332-342. [PMID: 30932378 DOI: 10.1631/jzus.b1800213] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
An extracellular lipase from Aureobasidium pullulans was obtained and purified with a specific activity of 17.7 U/mg of protein using ultrafiltration and a DEAE-Sepharose Fast Flow column. Characterization of the lipase indicated that it is a novel finding from the species A. pullulans. The molecular weight of the lipase was 39.5 kDa, determined by sodium dodecyl sulfonate-polyacrylamide gel electrophoresis (SDS-PAGE). The enzyme exhibited its optimum activity at 40 °C and pH of 7. It also showed a remarkable stability in some organic solutions (30%, v/v) including n-propanol, isopropanol, dimethyl sulfoxide (DMSO), and hexane. The catalytic activity of the lipase was enhanced by Ca2+ and was slightly inhibited by Mn2+ and Zn2+ at a concentration of 10 mmol/L. The lipase was activated by the anionic surfactant SDS and the non-ionic surfactants Tween 20, Tween 80, and Triton X-100, but it was drastically inhibited by the cationic surfactant cetyl trimethyl ammonium bromide (CTAB). Furthermore, the lipase was able to hydrolyze a wide variety of edible oils, such as peanut oil, corn oil, sunflower seed oil, sesame oil, and olive oil. Our study indicated that the lipase we obtained is a potential biocatalyst for industrial use.
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Affiliation(s)
- Yang Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.,Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Tong-Jie Liu
- School of Management and E-business, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Min-Jie Zhao
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.,Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Hui Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.,Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Feng-Qin Feng
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.,Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
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Aung T, Jiang H, Chen CC, Liu GL, Hu Z, Chi ZM, Chi Z. Production, Gene Cloning, and Overexpression of a Laccase in the Marine-Derived Yeast Aureobasidium melanogenum Strain 11-1 and Characterization of the Recombinant Laccase. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2019; 21:76-87. [PMID: 30456695 DOI: 10.1007/s10126-018-9860-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
Aureobasidium melanogenum strain 11-1 with a high laccase activity was isolated from a mangrove ecosystem. Under the optimal conditions, the 11-1 strain yielded the highest laccase activity up to 3120.0 ± 170 mU/ml (1.2 U/mg protein) within 5 days. A laccase gene (LAC1) of the yeast strain 11-1 contained two introns and encoded a protein with 570 amino acids and four conserved copper-binding domains typical of the fungal laccase. Expression of the LAC1 gene in the yeast strain 11-1 made a recombinant yeast strain produce the laccase activity of 6005 ± 140 mU/ml. The molecular weight of the recombinant laccase after removing the sugar was about 62.5 kDa. The optimal temperature and pH of the recombinant laccase were 40 °C and 3.2, respectively, and it was stable at a temperature less than 25 °C. The laccase was inhibited in the presence of sodium dodecyl sulfate (SDS), ethylenediaminetetraacetic acid (EDTA), phenylmethanesulfonyl fluoride (PMSF), and DL-dithiothreitol (DTT). The Km and Vmax values of the laccase for 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) was 6.3 × 10-2 mM and 177.4 M/min, respectively. Many synthetic dyes were greatly decolored by the laccase.
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Affiliation(s)
- Thu Aung
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, Yushan Road, No. 5, Qingdao, China
| | - Hong Jiang
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, Yushan Road, No. 5, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Shi, 266003, Shandong Sheng, Qingdao, China
| | - Cheng-Cheng Chen
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, Yushan Road, No. 5, Qingdao, China
| | - Guang-Lei Liu
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, Yushan Road, No. 5, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Shi, 266003, Shandong Sheng, Qingdao, China
| | - Zhong Hu
- Department of Biology, Shantou University, Shantou, China
| | - Zhen-Ming Chi
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, Yushan Road, No. 5, Qingdao, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Shi, 266003, Shandong Sheng, Qingdao, China.
| | - Zhe Chi
- Key Laboratory of Marine Genetics and Breeding (Ocean University of China), Ministry of Education, Yushan Road, No. 5, Qingdao, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Shi, 266003, Shandong Sheng, Qingdao, China.
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10
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van Nieuwenhuijzen EJ, Sailer MF, van den Heuvel ER, Rensink S, Adan OCG, Samson RA. Vegetable oils as carbon and energy source for Aureobasidium melanogenum in batch cultivation. Microbiologyopen 2018; 8:e00764. [PMID: 30515994 PMCID: PMC6562153 DOI: 10.1002/mbo3.764] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/10/2018] [Accepted: 10/12/2018] [Indexed: 11/22/2022] Open
Abstract
Dark homogenous fungal‐based layers called biofinishes and vegetable oils are key ingredients of an innovative wood protecting system. The aim of this study was to determine which of the vegetable oils that have been used to generate biofinishes on wood will provide carbon and energy for the biofinish‐inhabiting fungus Aureobasidium melanogenum, and to determine the effect of the oil type and the amount of oil on the cell yield. Aureobasidium melanogenum was cultivated in shake flasks with different types and amounts of carbon‐based nutrients. Oil‐related total cell and colony‐forming unit growth were demonstrated in suspensions with initially 1% raw linseed, stand linseed, and olive oil. Oil‐related cell growth was also demonstrated with raw linseed oil, using an initial amount of 0.02% and an oil addition during cultivation. Nile red staining showed the accumulation of fatty acids inside cells grown in the presence of oil. In conclusion, each tested vegetable oil was used as carbon and energy source by A. melanogenum. The results indicated that stand linseed oil provides less carbon and energy than olive and raw linseed oil. This research is a fundamental step in unraveling the effects of vegetable oils on biofinish formation.
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Affiliation(s)
| | - Michael F Sailer
- Saxion University of Applied Sciences, Enschede, The Netherlands.,Xylotrade BV, Goor, The Netherlands
| | - Edwin R van den Heuvel
- Department of Mathematics and Computer Science, University of Technology Eindhoven, Eindhoven, The Netherlands
| | | | - Olaf C G Adan
- Department of Applied Physics, University of Technology Eindhoven, Eindhoven, The Netherlands
| | - Robert A Samson
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
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Abstract
The saprophytic yeast-like fungus Aureobasidium pullulans has been well documented for over 60 years in the microbiological literature. It is ubiquitous in distribution, being found in a variety of environments (plant surfaces, soil, water, rock surfaces and manmade surfaces), and with a worldwide distribution from cold to warm climates and wet/humid regions to arid ones. Isolates and strains of A. pullulans produce a wide range of natural products well documented in the international literature and which have been regarded as safe for biotechnological and environmental applications. Showing antagonistic activity against plant pathogens (especially post-harvest pathogens) is one of the major applications currently in agriculture of the fungus, with nutrient and space competition, production of volatile organic compounds, and production of hydrolytic enzymes and antimicrobial compounds (antibacterial and antifungal). The fungus also shows a positive role on mycotoxin biocontrol through various modes, with the most striking being that of binding and/or absorption. A. pullulans strains have been reported to produce very useful industrial enzymes, such as β-glucosidase, amylases, cellulases, lipases, proteases, xylanases and mannanases. Pullulan (poly-α-1,6-maltotriose biopolymer) is an A. pullulans trademark product with significant properties and biotechnological applications in the food, cosmetic and pharmaceutical industries. Poly (β-l-malic acid), or PMA, which is a natural biopolyester, and liamocins, a group of produced heavy oils and siderophores, are among other valuable compounds detected that are of possible biotechnological use. The fungus also shows a potential single-cell protein source capacity with high levels of nucleic acid components and essential amino acids, but this remains to be further explored. Last but not least, the fungus has shown very good biocontrol against aerial plant pathogens. All these properties are of major interest in the vitivinicultural sector and are thoroughly reviewed under this prism, concluding on the importance that A. pullulans may have if used at both vineyard and winery levels. This extensive array of properties provides excellent tools for the viticulturist/farmer as well as for the oenologist to combat problems in the field and create a high-quality wine.
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Pullusurfactans A–E, new biosurfactants produced by Aureobasidium pullulans A11211-4-57 from a fleabane, Erigeron annus (L.) pers. J Antibiot (Tokyo) 2018; 71:920-926. [DOI: 10.1038/s41429-018-0089-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/16/2018] [Accepted: 08/02/2018] [Indexed: 11/08/2022]
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Peeters LHM, Huinink HP, Voogt B, Adan OCG. Oil type and cross-linking influence growth of Aureobasidium melanogenum on vegetable oils as a single carbon source. Microbiologyopen 2018. [PMID: 29527827 PMCID: PMC6291786 DOI: 10.1002/mbo3.605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aureobasidium melanogenum is the main fungus found in a spontaneously formed biofilm on a oil‐treated wood. This dark colored biofilm functions as a protective coating. To better understand biofilm formation, in this study A. melanogenum was cultured on olive oil and raw linseed oil. Metabolic activity and oil conversion were measured. The results show that A. melanogenum is able to grow on linseed oil and olive oil as a single carbon source. The fungus produces the enzyme lipase to convert the oil into fatty acids and glycerol. Metabolic activity and oil conversion were equal on linseed oil and olive oil. The fungus was not able to grow on severe cross‐linked linseed oil, meaning that the degree of cross‐linking of the oil is important for growth of A. melanogenum. Dark coloring of the colony was seen on linseed oil, which might be a stress response on the presence of autoxidation products in linseed oil. The colony on olive oil showed delayed melanin production indicating an inhibitory effect of olive oil on melanin production.
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Affiliation(s)
- Loes H M Peeters
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Hendrik P Huinink
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Benjamin Voogt
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Olaf C G Adan
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands
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14
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Garay LA, Sitepu IR, Cajka T, Xu J, Teh HE, German JB, Pan Z, Dungan SR, Block DE, Boundy-Mills KL. Extracellular fungal polyol lipids: A new class of potential high value lipids. Biotechnol Adv 2018; 36:397-414. [DOI: 10.1016/j.biotechadv.2018.01.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 12/07/2017] [Accepted: 01/03/2018] [Indexed: 01/30/2023]
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15
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Javed S, Azeem F, Hussain S, Rasul I, Siddique MH, Riaz M, Afzal M, Kouser A, Nadeem H. Bacterial lipases: A review on purification and characterization. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2018; 132:23-34. [DOI: 10.1016/j.pbiomolbio.2017.07.014] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 07/18/2017] [Accepted: 07/27/2017] [Indexed: 11/16/2022]
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16
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The current status of Aureobasidium pullulans in biotechnology. Folia Microbiol (Praha) 2017; 63:129-140. [DOI: 10.1007/s12223-017-0561-4] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 10/22/2017] [Indexed: 11/26/2022]
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17
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Kim JS, Lee IK, Kim DW, Yun BS. Aureosurfactin and 3-deoxyaureosurfactin, novel biosurfactants produced by Aureobasidium pullulans L3-GPY. J Antibiot (Tokyo) 2016; 69:759-761. [DOI: 10.1038/ja.2015.141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/11/2015] [Accepted: 12/07/2015] [Indexed: 11/09/2022]
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18
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Kim JS, Lee IK, Yun BS. A novel biosurfactant produced by Aureobasidium pullulans L3-GPY from a tiger lily wild flower, Lilium lancifolium Thunb. PLoS One 2015; 10:e0122917. [PMID: 25849549 PMCID: PMC4388725 DOI: 10.1371/journal.pone.0122917] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 09/15/2014] [Indexed: 11/18/2022] Open
Abstract
Yeast biosurfactants are important biotechnological products in the food industry, and they have medical and cosmeceutical applications owing to their specific modes of action, low toxicity, and applicability. Thus, we have isolated and examined biosurfactant-producing yeast for various industrial and medical applications. A rapid and simple method was developed to screen biosurfactant-producing yeasts for high production of eco-friendly biosurfactants. Using this method, several potential niches of biosurfactant-producing yeasts, such as wild flowers, were investigated. We successfully selected a yeast strain, L3-GPY, with potent surfactant activity from a tiger lily, Lilium lancifolium Thunb. Here, we report the first identification of strain L3-GPY as the black yeast Aureobasidium pullulans. In addition, we isolated a new low-surface-tension chemical, designated glycerol-liamocin, from the culture supernatant of strain L3-GPY through consecutive chromatography steps, involving an ODS column, solvent partition, silica gel, Sephadex LH-20, and an ODS Sep-Pak cartridge column. The chemical structure of glycerol-liamocin, determined by mass spectrometry and nuclear magnetic resonance spectroscopy, indicates that it is a novel compound with the molecular formula C33H62O12. Furthermore, glycerol-liamocin exhibited potent biosurfactant activity (31 mN/m). These results suggest that glycerol-liamocin is a potential novel biosurfactantfor use in various industrial applications.
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Affiliation(s)
- Jong Shik Kim
- Gyeongbuk Institute for Marine Bioindustry, 22 Haeyanggwahak-gil, Uljin, Gyeongbuk 767–813, Republic of Korea
| | - In Kyoung Lee
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, Chonbuk National University, 79 Gobong-ro, Iksan, Chonbuk 570–752, Republic of Korea
| | - Bong Sik Yun
- Division of Biotechnology and Advanced Institute of Environmental and Bioscience, Chonbuk National University, 79 Gobong-ro, Iksan, Chonbuk 570–752, Republic of Korea
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