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Perumal AB, Li X, Su Z, He Y. Preparation and characterization of a novel green tea essential oil nanoemulsion and its antifungal mechanism of action against Magnaporthae oryzae. ULTRASONICS SONOCHEMISTRY 2021; 76:105649. [PMID: 34186493 PMCID: PMC8250457 DOI: 10.1016/j.ultsonch.2021.105649] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 05/21/2023]
Abstract
Blast is one of the most devastating fungal diseases of rice caused by Magnaporthe oryzae. Plant essential oil (EO) can function as antifungal agents and are regarded as a safe and acceptable method for plant disease control. However, EOs are unstable and hydrophobic, which limits its use. In the present study, we aimed for the preparation and characterization of a nanoemulsion (NE) from green tea essential oil (GTO) by ultrasonication method and determined the antifungal activity of NE onM. oryzae. The particle size and zeta potential of the NE were 86.98 nm and -15.1 mV, respectively. The chemical composition and functional groups of GTO and NE were studied by using GC-MS analysis, portable Raman spectroscopy, and FTIR coupled with chemometric analysis. GC-MS analysis showed the major components in GTO and NE were n-Hexyl cinnamaldehyde and L-α-Terpineol. Both GTO and NE showed good antioxidant activity and total phenol content. Moreover, the NE showed good antifungal activity againstM. oryzae which was further confirmed by scanning electron microscopy (SEM) examination. Also, confocal Raman micro-spectroscopy (CRM) revealed the antifungal mechanism of GTO and NE on M. oryzae which proves the cell damage. To the best of our knowledge, this is the first study on the antifungal activity of GTO and NE against M. oryzae and also the use of CRM for the evaluation of the chemical changes in single fungal hyphae in a holistic approach. This study suggests that the prepared NE could be a potential candidate for use as a substitute for synthetic fungicides.
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Affiliation(s)
- Anand Babu Perumal
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
| | - Xiaoli Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
| | - Zhenzhu Su
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China.
| | - Yong He
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
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Dzurendová S, Shapaval V, Tafintseva V, Kohler A, Byrtusová D, Szotkowski M, Márová I, Zimmermann B. Assessment of Biotechnologically Important Filamentous Fungal Biomass by Fourier Transform Raman Spectroscopy. Int J Mol Sci 2021; 22:6710. [PMID: 34201486 PMCID: PMC8269384 DOI: 10.3390/ijms22136710] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 12/11/2022] Open
Abstract
Oleaginous filamentous fungi can accumulate large amount of cellular lipids and biopolymers and pigments and potentially serve as a major source of biochemicals for food, feed, chemical, pharmaceutical, and transport industries. We assessed suitability of Fourier transform (FT) Raman spectroscopy for screening and process monitoring of filamentous fungi in biotechnology. Six Mucoromycota strains were cultivated in microbioreactors under six growth conditions (three phosphate concentrations in the presence and absence of calcium). FT-Raman and FT-infrared (FTIR) spectroscopic data was assessed in respect to reference analyses of lipids, phosphorus, and carotenoids by using principal component analysis (PCA), multiblock or consensus PCA, partial least square regression (PLSR), and analysis of spectral variation due to different design factors by an ANOVA model. All main chemical biomass constituents were detected by FT-Raman spectroscopy, including lipids, proteins, cell wall carbohydrates, and polyphosphates, and carotenoids. FT-Raman spectra clearly show the effect of growth conditions on fungal biomass. PLSR models with high coefficients of determination (0.83-0.94) and low error (approximately 8%) for quantitative determination of total lipids, phosphates, and carotenoids were established. FT-Raman spectroscopy showed great potential for chemical analysis of biomass of oleaginous filamentous fungi. The study demonstrates that FT-Raman and FTIR spectroscopies provide complementary information on main fungal biomass constituents.
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Affiliation(s)
- Simona Dzurendová
- Faculty of Science and Technology, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway; (S.D.); (V.S.); (V.T.); (A.K.); (D.B.)
| | - Volha Shapaval
- Faculty of Science and Technology, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway; (S.D.); (V.S.); (V.T.); (A.K.); (D.B.)
| | - Valeria Tafintseva
- Faculty of Science and Technology, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway; (S.D.); (V.S.); (V.T.); (A.K.); (D.B.)
| | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway; (S.D.); (V.S.); (V.T.); (A.K.); (D.B.)
| | - Dana Byrtusová
- Faculty of Science and Technology, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway; (S.D.); (V.S.); (V.T.); (A.K.); (D.B.)
- Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic; (M.S.); (I.M.)
| | - Martin Szotkowski
- Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic; (M.S.); (I.M.)
| | - Ivana Márová
- Faculty of Chemistry, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic; (M.S.); (I.M.)
| | - Boris Zimmermann
- Faculty of Science and Technology, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway; (S.D.); (V.S.); (V.T.); (A.K.); (D.B.)
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Kosa G, Kohler A, Tafintseva V, Zimmermann B, Forfang K, Afseth NK, Tzimorotas D, Vuoristo KS, Horn SJ, Mounier J, Shapaval V. Microtiter plate cultivation of oleaginous fungi and monitoring of lipogenesis by high-throughput FTIR spectroscopy. Microb Cell Fact 2017; 16:101. [PMID: 28599651 PMCID: PMC5466753 DOI: 10.1186/s12934-017-0716-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 06/05/2017] [Indexed: 02/06/2023] Open
Abstract
Background Oleaginous fungi can accumulate lipids by utilizing a wide range of waste substrates. They are an important source for the industrial production of omega-6 polyunsaturated fatty acids (gamma-linolenic and arachidonic acid) and have been suggested as an alternative route for biodiesel production. Initial research steps for various applications include the screening of fungi in order to find efficient fungal producers with desired fatty acid composition. Traditional cultivation methods (shake flask) and lipid analysis (extraction-gas chromatography) are not applicable for large-scale screening due to their low throughput and time-consuming analysis. Here we present a microcultivation system combined with high-throughput Fourier transform infrared (FTIR) spectroscopy for efficient screening of oleaginous fungi. Results The microcultivation system enables highly reproducible fungal fermentations throughout 12 days of cultivation. Reproducibility was validated by FTIR and HPLC data. Analysis of FTIR spectral ester carbonyl peaks of fungal biomass offered a reliable high-throughput at-line method to monitor lipid accumulation. Partial least square regression between gas chromatography fatty acid data and corresponding FTIR spectral data was used to set up calibration models for the prediction of saturated fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids, unsaturation index, total lipid content and main individual fatty acids. High coefficients of determination (R2 = 0.86–0.96) and satisfactory residual predictive deviation of cross-validation (RPDCV = 2.6–5.1) values demonstrated the goodness of these models. Conclusions We have demonstrated in this study, that the presented microcultivation system combined with rapid, high-throughput FTIR spectroscopy is a suitable screening platform for oleaginous fungi. Sample preparation for FTIR measurements can be automated to further increase throughput of the system. Electronic supplementary material The online version of this article (doi:10.1186/s12934-017-0716-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gergely Kosa
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway.
| | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway
| | - Valeria Tafintseva
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway
| | - Boris Zimmermann
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway
| | - Kristin Forfang
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway
| | | | | | - Kiira S Vuoristo
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway
| | - Svein Jarle Horn
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway
| | - Jerome Mounier
- Université de Brest, EA3882 Laboratoire Universitaire de Biodiversité et Ecologie Microbienne, IBSAM, ESIAB, Technopôle Brest Iroise, 29280, Plouzané, France
| | - Volha Shapaval
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432, Ås, Norway
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Benny GL, Smith ME, Kirk PM, Tretter ED, White MM. Challenges and Future Perspectives in the Systematics of Kickxellomycotina, Mortierellomycotina, Mucoromycotina, and Zoopagomycotina. BIOLOGY OF MICROFUNGI 2016. [DOI: 10.1007/978-3-319-29137-6_5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Quantitative assessment of the degree of lipid unsaturation in intact Mortierella by Raman microspectroscopy. Anal Bioanal Chem 2015; 407:3303-11. [PMID: 25757824 DOI: 10.1007/s00216-015-8544-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 02/05/2015] [Accepted: 02/07/2015] [Indexed: 01/17/2023]
Abstract
Fungi of the genus Mortierella can accumulate large amounts of unusual lipids depending on species, strain, and growth conditions. Fast and easy determination of key parameters of lipid quality for these samples is required. In this contribution, we apply Raman microspectroscopy to determine the degree of unsaturation for fungal lipids directly inside intact hyphae without elaborate sample handling. Six Mortierella species were grown under varying conditions, and Raman spectra of single lipid vesicles were acquired. From the spectra, we calculate a peak intensity ratio I(1270 cm(-1))/I(1445 cm(-1)) from the signals of =CH and -CH2/-CH3 groups, respectively. This ratio is linked to the iodine value (IV) using spectra of reference compounds with known IV. IVs of fungal samples are compared to gas chromatography results. Values from both methods are in good accordance. Lipid composition is found to vary between the investigated species, with Mortierella alpina having the most unsaturated lipid (IV up to 280) and Mortierella exigua the least unsaturated (IV as low as 70). We find Raman microspectroscopy a suitable tool to determine the IV reliably, fast, and easily inside intact hyphae without extensive sample handling or treatment. The method can also be transferred to other microscopic samples.
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Silge A, Abdou E, Schneider K, Meisel S, Bocklitz T, Lu-Walther HW, Heintzmann R, Rösch P, Popp J. Shedding light on host niches: label-freein situdetection ofMycobacterium gordonaevia carotenoids in macrophages by Raman microspectroscopy. Cell Microbiol 2015; 17:832-42. [DOI: 10.1111/cmi.12404] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/01/2014] [Accepted: 12/03/2014] [Indexed: 01/03/2023]
Affiliation(s)
- Anja Silge
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- InfectoGnostics Research Campus Jena; Center for Applied Research; Philosophenweg 7 Jena D-07743 Germany
| | - Elias Abdou
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- InfectoGnostics Research Campus Jena; Center for Applied Research; Philosophenweg 7 Jena D-07743 Germany
- Center for Sepsis Control and Care; University Hospital Jena; Erlanger Alee 101 Jena D-07747 Germany
| | - Kilian Schneider
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- InfectoGnostics Research Campus Jena; Center for Applied Research; Philosophenweg 7 Jena D-07743 Germany
| | - Susann Meisel
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- InfectoGnostics Research Campus Jena; Center for Applied Research; Philosophenweg 7 Jena D-07743 Germany
| | - Thomas Bocklitz
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- InfectoGnostics Research Campus Jena; Center for Applied Research; Philosophenweg 7 Jena D-07743 Germany
| | - Hui-Wen Lu-Walther
- Leibniz Institute of Photonic Technology; Albert-Einstein-Strasse 9 Jena D-07745 Germany
| | - Rainer Heintzmann
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- Leibniz Institute of Photonic Technology; Albert-Einstein-Strasse 9 Jena D-07745 Germany
- Randall Division of Cell and Molecular Biophysics; King's College London; London SE1 1UL UK
| | - Petra Rösch
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- InfectoGnostics Research Campus Jena; Center for Applied Research; Philosophenweg 7 Jena D-07743 Germany
| | - Jürgen Popp
- Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich-Schiller-University Jena; Helmholtzweg 4 Jena D-07743 Germany
- InfectoGnostics Research Campus Jena; Center for Applied Research; Philosophenweg 7 Jena D-07743 Germany
- Leibniz Institute of Photonic Technology; Albert-Einstein-Strasse 9 Jena D-07745 Germany
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Boyaci IH, Temiz HT, Geniş HE, Acar Soykut E, Yazgan NN, Güven B, Uysal RS, Bozkurt AG, İlaslan K, Torun O, Dudak Şeker FC. Dispersive and FT-Raman spectroscopic methods in food analysis. RSC Adv 2015. [DOI: 10.1039/c4ra12463d] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Raman spectroscopy is a powerful technique for molecular analysis of food samples.
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Affiliation(s)
- Ismail Hakki Boyaci
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | - Havva Tümay Temiz
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | - Hüseyin Efe Geniş
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | | | - Nazife Nur Yazgan
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | - Burcu Güven
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | - Reyhan Selin Uysal
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | - Akif Göktuğ Bozkurt
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | - Kerem İlaslan
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
| | - Ozlem Torun
- Department of Food Engineering
- Faculty of Engineering
- Hacettepe University
- 06800 Ankara
- Turkey
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In situ detection of antibiotic amphotericin B produced in Streptomyces nodosus using Raman microspectroscopy. Mar Drugs 2014; 12:2827-39. [PMID: 24828290 PMCID: PMC4052319 DOI: 10.3390/md12052827] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 04/17/2014] [Accepted: 04/24/2014] [Indexed: 11/19/2022] Open
Abstract
The study of spatial distribution of secondary metabolites within microbial cells facilitates the screening of candidate strains from marine environments for functional metabolites and allows for the subsequent assessment of the production of metabolites, such as antibiotics. This paper demonstrates the first application of Raman microspectroscopy for in situ detection of the antifungal antibiotic amphotericin B (AmB) produced by actinomycetes—Streptomyces nodosus. Raman spectra measured from hyphae of S. nodosus show the specific Raman bands, caused by resonance enhancement, corresponding to the polyene chain of AmB. In addition, Raman microspectroscopy enabled us to monitor the time-dependent change of AmB production corresponding to the growth of mycelia. The Raman images of S. nodosus reveal the heterogeneous distribution of AmB within the mycelia and individual hyphae. Moreover, the molecular association state of AmB in the mycelia was directly identified by observed Raman spectral shifts. These findings suggest that Raman microspectroscopy could be used for in situ monitoring of antibiotic production directly in marine microorganisms with a method that is non-destructive and does not require labeling.
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Dedyukhina EG, Chistyakova TI, Mironov AA, Kamzolova SV, Morgunov IG, Vainshtein MB. Arachidonic acid synthesis from biodiesel-derived waste byMortierella alpina. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300358] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Emiliya G. Dedyukhina
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences; Pushchino Moscow Region Russia
| | - Tatyana I. Chistyakova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences; Pushchino Moscow Region Russia
| | - Aleksei A. Mironov
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences; Pushchino Moscow Region Russia
- Pushchino State Institute of Natural Sciences; Pushchino Moscow Region Russia
| | - Svetlana V. Kamzolova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences; Pushchino Moscow Region Russia
| | - Igor G. Morgunov
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences; Pushchino Moscow Region Russia
- Pushchino State Institute of Natural Sciences; Pushchino Moscow Region Russia
| | - Mikhail B. Vainshtein
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences; Pushchino Moscow Region Russia
- Pushchino State Institute of Natural Sciences; Pushchino Moscow Region Russia
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Asadi SZ, Khosravi-Darani K, Nikoopour H, Bakhoda H. Evaluation of the effect of process variables on the fatty acid profile of single cell oil produced by Mortierella using solid-state fermentation. Crit Rev Biotechnol 2013; 35:94-102. [DOI: 10.3109/07388551.2013.804805] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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