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Structure and antioxidant activity of six mushroom-derived heterogalactans. Int J Biol Macromol 2022; 209:1439-1449. [PMID: 35461867 DOI: 10.1016/j.ijbiomac.2022.04.135] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 03/30/2022] [Accepted: 04/18/2022] [Indexed: 11/24/2022]
Abstract
Heterogalactans with weight-average molecular weights ~20 kDa were purified from several species of mushroom: Hypsizygus marmoreus, Pleurotus ostreatus, Pholiota nameko, Agrocybe cylindracea, Hygrophorus lucorum and Hericium erinaceus, and structurally characterized and assessed for antioxidant activity in vitro. Methylation analysis, combined with NMR spectral analysis, indicates that these glycans have a common backbone composed of (1 → 6)-linked-α-D-galactopyranosyl residues that are substituted at O-2. The (1 → 6)-α-D-galactans, branched primarily with β-D-mannopyranosyl (Manp) or α-L-fucopyranosyl (Fucp) residues, have been assigned to mannogalactans or fucogalactans, respectively, as well as to β-D-Manp and α-L-Fucp residues attached in tandem to the main chain as fucomannogalactans. In addition, 3-O-methylated-α-D-galactopyranosyl (3-O-Me-Galp) residues within the mannogalactan chains, exhibit strong reducing power and radical scavenging activity suggesting that this sugar moiety functions as an antioxidant. Our results provide important structural information on mushroom heterogalactans and prompt further investigations into their structure-activity relationships.
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Asemoloye MD, Sunmola N, Jonathan G, Chikwem J. Mycochemical screening reveals exopolysaccharide secretion, antioxidant and larvicidal activities of three oyster mushrooms. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:2120-2126. [PMID: 34599826 DOI: 10.1002/jsfa.11553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/24/2021] [Accepted: 10/02/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Higher fungi such as oyster mushrooms have been well reported to have vast therapeutic and nutritive importance due to their bioactive constituents. Today, many interesting facts are also emerging regarding their importance in pest control. In this study, Pleurotus floridanus, P. ostreatus and P. sajor-caju were studied for exopolysacharide (EPS) and antioxidant production under different carbon sources, and assayed for larvicidal properties. RESULTS We observed a positive response of these mushrooms to carbon sources. The highest EPS was produced by P. sajor-caju under sucrose carbon source, whereas P. ostreatus and P. floridanus preferred glucose. The antioxidant activity of their EPS was confirmed using radical scavenging of 1,1-diphenyl-2-picrylhydrazyl and potassium ferricyanide reduction methods. We also established the inhibition of lipid peroxidation by the EPS produced by these mushrooms, although this was concentration dependent, while P. floridanus EPS had the highest antioxidant properties. An EPS concentration of 100 mg L-1 from all the mushrooms was sufficient for inhibition of lipid peroxidation; this also showed a significant difference from the scavenging effect of butylated hydroxytoluene. All the mushroom extracts in this study had positive inhibitory effects on the late third and early fourth stages of Anopheles gambiae. However, they were significantly different from each other as P. floridanus recorded a lethal concentration (LC50 ) of 0.0.563, P. ostreatus had an LC50 of 0.352, while P. sajor-caju had an LC50 of 0.715. CONCLUSION This study affirms the influence of carbon source on EPS production by selected oyster mushrooms, and reveals their antioxidant properties and potential applications in pest control. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Michael D Asemoloye
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
- Mycology and Applied Microbiology Group, Department of Botany, University of Ibadan, Ibadan, Nigeria
| | - Nurudeen Sunmola
- Mycology and Applied Microbiology Group, Department of Botany, University of Ibadan, Ibadan, Nigeria
| | - Gbolagade Jonathan
- Mycology and Applied Microbiology Group, Department of Botany, University of Ibadan, Ibadan, Nigeria
| | - John Chikwem
- Biology Department, Lincoln University, Philadelphia, PA, USA
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Sponges and Their Symbionts as a Source of Valuable Compounds in Cosmeceutical Field. Mar Drugs 2021; 19:md19080444. [PMID: 34436283 PMCID: PMC8401093 DOI: 10.3390/md19080444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/23/2021] [Accepted: 07/30/2021] [Indexed: 12/21/2022] Open
Abstract
In the last decades, the marine environment was discovered as a huge reservoir of novel bioactive compounds, useful for medicinal treatments improving human health and well-being. Among several marine organisms exhibiting biotechnological potential, sponges were highlighted as one of the most interesting phyla according to a wide literature describing new molecules every year. Not surprisingly, the first marine drugs approved for medical purposes were isolated from a marine sponge and are now used as anti-cancer and anti-viral agents. In most cases, experimental evidence reported that very often associated and/or symbiotic communities produced these bioactive compounds for a mutual benefit. Nowadays, beauty treatments are formulated taking advantage of the beneficial properties exerted by marine novel compounds. In fact, several biological activities suitable for cosmetic treatments were recorded, such as anti-oxidant, anti-aging, skin whitening, and emulsifying activities, among others. Here, we collected and discussed several scientific contributions reporting the cosmeceutical potential of marine sponge symbionts, which were exclusively represented by fungi and bacteria. Bioactive compounds specifically indicated as products of the sponge metabolism were also included. However, the origin of sponge metabolites is dubious, and the role of the associated biota cannot be excluded, considering that the isolation of symbionts represents a hard challenge due to their uncultivable features.
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Qader MM, Hamed AA, Soldatou S, Abdelraof M, Elawady ME, Hassane ASI, Belbahri L, Ebel R, Rateb ME. Antimicrobial and Antibiofilm Activities of the Fungal Metabolites Isolated from the Marine Endophytes Epicoccum nigrum M13 and Alternaria alternata 13A. Mar Drugs 2021; 19:md19040232. [PMID: 33924262 PMCID: PMC8074750 DOI: 10.3390/md19040232] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 01/15/2023] Open
Abstract
Epicotripeptin (1), a new cyclic tripeptide along with four known cyclic dipeptides (2-5) and one acetamide derivative (6) were isolated from seagrass-associated endophytic fungus Epicoccum nigrum M13 recovered from the Red Sea. Additionally, two new compounds, cyclodidepsipeptide phragamide A (7) and trioxobutanamide derivative phragamide B (8), together with eight known compounds (9-16), were isolated from plant-derived endophyte Alternaria alternata 13A collected from a saline lake of Wadi El Natrun depression in the Sahara Desert. The structures of the isolated compounds were determined based on the 1D and 2D NMR spectroscopic data, HRESIMS data, and a comparison with the reported literature. The absolute configurations of 1 and 7 were established by advanced Marfey's and Mosher's ester analyses. The antimicrobial screening indicated that seven of the tested compounds exhibited considerable (MIC range of 2.5-5 µg/mL) to moderate (10-20 µg/mL) antibacterial effect against the tested Gram-positive strains and moderate to weak (10-30 µg/mL) antibacterial effect against Gram-negative strains. Most of the compounds exhibited weak or no activity against the tested Gram-negative strains. On the other hand, four of the tested compounds showed considerable antibiofilm effects against biofilm forming Gram-positive and Gram-negative strains.
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Affiliation(s)
- M. Mallique Qader
- School of Computing, Engineering, & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (M.M.Q.); (A.S.I.H.)
- National Institute of Fundamental Studies, Hantana Road, Kandy 20000, Sri Lanka
| | - Ahmed A. Hamed
- National Research Centre, Microbial Chemistry Department, 33 El-Buhouth Street, Dokki, Giza 12622, Egypt; (A.A.H.); (M.A.)
| | - Sylvia Soldatou
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, UK;
| | - Mohamed Abdelraof
- National Research Centre, Microbial Chemistry Department, 33 El-Buhouth Street, Dokki, Giza 12622, Egypt; (A.A.H.); (M.A.)
| | - Mohamed E. Elawady
- National Research Centre, Microbial Biotechnology Department, 33 El-Buhouth Street, Dokki, Giza 12622, Egypt;
| | - Ahmed S. I. Hassane
- School of Computing, Engineering, & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (M.M.Q.); (A.S.I.H.)
- Aberdeen Royal Infirmary, Foresterhill Health Campus, Aberdeen AB25 2ZN, UK
| | - Lassaad Belbahri
- Laboratory of Soil Biology, University of Neuchatel, 2000 Neuchatel, Switzerland;
| | - Rainer Ebel
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, UK;
- Correspondence: (R.E.); (M.E.R.); Tel.: +44-1224-272930 (R.E.); +44-141-8483072 (M.E.R.)
| | - Mostafa E. Rateb
- School of Computing, Engineering, & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (M.M.Q.); (A.S.I.H.)
- Correspondence: (R.E.); (M.E.R.); Tel.: +44-1224-272930 (R.E.); +44-141-8483072 (M.E.R.)
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Abed RM. Exploring Fungal Biodiversity of Genus Epicoccum and Their Biotechnological Potential. Fungal Biol 2021. [DOI: 10.1007/978-3-030-67561-5_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Vitale GA, Coppola D, Palma Esposito F, Buonocore C, Ausuri J, Tortorella E, de Pascale D. Antioxidant Molecules from Marine Fungi: Methodologies and Perspectives. Antioxidants (Basel) 2020; 9:E1183. [PMID: 33256101 PMCID: PMC7760651 DOI: 10.3390/antiox9121183] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 12/31/2022] Open
Abstract
The marine environment represents a prosperous existing resource for bioprospecting, covering 70% of the planet earth, and hosting a huge biodiversity. Advances in the research are progressively uncovering the presence of unknown microorganisms, which have evolved unique metabolic and genetic pathways for the production of uncommon secondary metabolites. Fungi have a leading role in marine bioprospecting since they represent a prolific source of structurally diverse bioactive metabolites. Several bioactive compounds from marine fungi have already been characterized including antibiotics, anticancer, antioxidants and antivirals. Nowadays, the search for natural antioxidant molecules capable of replacing those synthetic currently used, is an aspect that is receiving significant attention. Antioxidants can inactivate reactive oxygen and nitrogen species, preventing the insurgence of several degenerative diseases including cancer, autoimmune disorders, cardiovascular and neurodegenerative diseases. Moreover, they also find applications in different fields, including food preservation, healthcare and cosmetics. This review focuses on the production of antioxidants from marine fungi. We begin by proposing a survey of the available tools suitable for the evaluation of antioxidants, followed by the description of various classes of marine fungi antioxidants together with their extraction strategies. In addition, a view of the future perspectives and trends of these natural products within the "blue economy" is also presented.
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Affiliation(s)
- Giovanni Andrea Vitale
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Daniela Coppola
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
- Institute of Biosciences and BioResources (IBBR), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy
| | - Fortunato Palma Esposito
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
| | - Carmine Buonocore
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Janardhan Ausuri
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Emiliana Tortorella
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
| | - Donatella de Pascale
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, Via Pietro Castellino 111, 80131 Naples, Italy; (G.A.V.); (C.B.); (J.A.); (E.T.)
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (D.C.); (F.P.E.)
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Patatin primary structural properties and effects on lipid metabolism. Food Chem 2020; 344:128661. [PMID: 33272761 DOI: 10.1016/j.foodchem.2020.128661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 10/17/2020] [Accepted: 11/13/2020] [Indexed: 11/23/2022]
Abstract
Patatin, the major protein found in potatoes, was purified and shows several isoforms. The essential amino acid content of patatin was ashighas 76%, indicating that it is a valuable protein source. Patatin was an O-linked glycoprotein that contained fucose monosaccharides, as well as mannose, rhamnose, glucose, galactose, xylose, and arabinose. Patatin had a fucosylated glycan structural feature, which strongly bound AAL (Aleuria aurantia Leukoagglutinin), a known fucose binding lectin. Moreover, thelipid metabolism regulatory effects of patatin on the fat catabolism, fat absorption, and inhibition of lipase activity were measured after high-fat feeding of zebrafish larvae. Results revealed that 37.0 μg/mL patatin promoted 23% lipid decomposition metabolism. Meanwhile patatin could inhibite lipase activity and fat absorption, whose effects accounted for half that of a positive control drug. Our findings suggest that patatin, a fucosylated glycoprotein, could potentially be used as a naturalactiveconstituent with anti-obesity effects.
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Tuo Y, Dong Z, Wang X, Gao B, Zhu C, Tuo F. Metagenomics Reveal Correlations Between Microbial Organisms in Soils and the Health of Populus euphratica. Front Microbiol 2020; 11:2095. [PMID: 33013765 PMCID: PMC7506035 DOI: 10.3389/fmicb.2020.02095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 08/10/2020] [Indexed: 11/13/2022] Open
Abstract
Biological diversity plays an important role in the stability of ecosystems. The Mu Us Desert (MUD), located in Northern China, is an aeolian desert. Although it has been governed by a series of ecological restoration programs, the MUD still has limited biological diversity. Populus euphratica (P. euphratica), a xerophytic plant, has great potential to improve the biological diversity of the MUD. However, the survival rate of P. euphratica in the MUD has been very low. The current study tried to explore the mechanism of the high death rate of P. euphratica in the microbiome perspective. The correlation study between soil community composition and soil properties showed that water-filled pore space (WFPS), pH, EC, AP, NO3 -, and NH4 + possess higher potential to change the bacterial community (18%) than the fungal community (9%). Principal coordinate analysis indicated that the composition of both bacteria (Proteobacteria and Bacteroidetes) and fungi (Ascomycota) in the root soil can be increased by P. euphratica. By systematically comparing between the fungal diversity in the root soil around P. euphratica and the pathogenic fungus extract from the pathogenic site of P. euphratica, we found that the high death rate of P. euphratica was associated with specific pathogenic fungus Alternaria alternate and Didymella glomerata. In addition, the microbiome composition analysis indicated that P. euphratica planting could also influence the portions of bacteria community, which also has great potential to lead to future infection. However, as the extraction and separation of bacteria from plants is challenging, the correlation between pathogenic bacteria and the high death rate of P. euphratica was not studied here and could be explored in future work.
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Affiliation(s)
- Yu Tuo
- School of Geography and Tourism, Shaanxi Normal University, Xi'an, China
| | - Zhibao Dong
- School of Geography and Tourism, Shaanxi Normal University, Xi'an, China
| | - Xiping Wang
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Beibei Gao
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, China
| | - Chunming Zhu
- School of Geography and Tourism, Shaanxi Normal University, Xi'an, China
| | - Fei Tuo
- Greening Committee Office of Forestry Bureau of Yulin City, Yulin, China
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Piecuch A, Ogórek R, Dyląg M, Cal M, Przywara K. Epicoccum nigrum Link as a Potential Biocontrol Agent Against Selected Dermatophytes. ACTA MYCOLOGICA 2020. [DOI: 10.5586/am.5516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
<em>Epicoccum nigrum </em>Link is well known for producing biologically-active substances with activities against prokaryotic and eukaryotic cells. The major goal of this study was to assess <em>E. nigrum </em>as a potential in vitro agent against selected species of dermatophytes. The effects of the types of media used in this study on the interactions between the microscopic fungi were also examined. <em>Epicoccum nigrum</em>’s bioactive metabolites exhibited a strong growth inhibitory effect against the dermatophytes, suggesting its potential as a biocontrol agent. Notably, the strength of these interactions was dependent on the type of the medium. These secondary metabolites are not toxic against the higher eukaryotic organisms, which was further demonstrated by using the <em>Galleria mellonella </em>model.
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Nasab SB, Homaei A, Pletschke BI, Salinas-Salazar C, Castillo-Zacarias C, Parra-Saldívar R. Marine resources effective in controlling and treating diabetes and its associated complications. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.01.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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11
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Cytotoxic Thiodiketopiperazine Derivatives from the Deep Sea-Derived Fungus Epicoccum nigrum SD-388. Mar Drugs 2020; 18:md18030160. [PMID: 32183021 PMCID: PMC7143119 DOI: 10.3390/md18030160] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/09/2020] [Accepted: 03/11/2020] [Indexed: 12/27/2022] Open
Abstract
Four new thiodiketopiperazine alkaloids, namely, 5’-hydroxy-6’-ene-epicoccin G (1), 7-methoxy-7’-hydroxyepicoccin G (2), 8’-acetoxyepicoccin D (3), and 7’-demethoxyrostratin C (4), as well as a pair of new enantiomeric diketopiperazines, (±)-5-hydroxydiphenylalazine A (5), along with five known analogues (6–10), were isolated and identified from the culture extract of Epicoccum nigrum SD-388, a fungus obtained from deep-sea sediments (−4500 m). Their structures were established on the basis of detailed interpretation of the NMR spectroscopic and mass spectrometric data. X-ray crystallographic analysis confirmed the structures and established the absolute configurations of compounds 1–3, while the absolute configurations for compounds 4 and 5 were determined by ECD calculations. Compounds 4 and 10 showed potent activity against Huh7.5 liver tumor cells, which were comparable to that of the positive control, sorafenib, and the disulfide bridge at C-2/C-2’ is likely essential for the activity.
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12
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Nasab SB, Homaei A, Karami L. Kinetic of α-amylase inhibition by Gracilaria corticata and Sargassum angustifolium extracts and zinc oxide nanoparticles. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2019.101478] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Patyshakuliyeva A, Falkoski DL, Wiebenga A, Timmermans K, de Vries RP. Macroalgae Derived Fungi Have High Abilities to Degrade Algal Polymers. Microorganisms 2019; 8:E52. [PMID: 31888103 PMCID: PMC7023191 DOI: 10.3390/microorganisms8010052] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/13/2019] [Accepted: 12/26/2019] [Indexed: 12/21/2022] Open
Abstract
Marine fungi associated with macroalgae are an ecologically important group that have a strong potential for industrial applications. In this study, twenty-two marine fungi isolated from the brown seaweed Fucus sp. were examined for their abilities to produce algal and plant biomass degrading enzymes. Growth of these isolates on brown and green algal biomass revealed a good growth, but no preference for any specific algae. Based on the analysis of enzymatic activities, macroalgae derived fungi were able to produce algae specific and (hemi-)cellulose degrading enzymes both on algal and plant biomass. However, the production of algae specific activities was lower than the production of cellulases and xylanases. These data revealed the presence of different enzymatic approaches for the degradation of algal biomass by macroalgae derived fungi. In addition, the results of the present study indicate our poor understanding of the enzymes involved in algal biomass degradation and the mechanisms of algal carbon source utilization by marine derived fungi.
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Affiliation(s)
- Aleksandrina Patyshakuliyeva
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; (A.P.); (D.L.F.); (A.W.)
| | - Daniel L. Falkoski
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; (A.P.); (D.L.F.); (A.W.)
| | - Ad Wiebenga
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; (A.P.); (D.L.F.); (A.W.)
| | - Klaas Timmermans
- NIOZ Royal Netherlands Institute for Sea Research, Landsdiep 4, 1797 SZ ′t Horntje, The Netherlands;
| | - Ronald P. de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; (A.P.); (D.L.F.); (A.W.)
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14
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Physicochemical characterization and antioxidant activity of cell-bound exopolysaccharides from Lactobacillus fermentum S1 obtained by two extraction methods. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Yan J, Zhu L, Qu Y, Qu X, Mu M, Zhang M, Muneer G, Zhou Y, Sun L. Analyses of active antioxidant polysaccharides from four edible mushrooms. Int J Biol Macromol 2019; 123:945-956. [DOI: 10.1016/j.ijbiomac.2018.11.079] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/16/2018] [Accepted: 11/12/2018] [Indexed: 01/27/2023]
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Ahumada-Rudolph R, Novoa V, Becerra J. Morphological response to salinity, temperature, and pH changes by marine fungus Epicoccum nigrum. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 191:35. [PMID: 30593600 DOI: 10.1007/s10661-018-7166-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Epicoccum nigrum (strain LQRA39-P) was isolated from sediments collected in Chilean Patagonian fjords using microscopy and molecular techniques. We analyzed adaptive responses of cell wall morphology to salinity, temperature, and pH in order to explain the ability of E. nigrum to co-inhabit both marine and freshwater environments. For this purpose, E. nigrum was cultured in a series of media with variations in salinity (freshwater and seawater), pH (acidic, neutral, and basic), and temperature (5 to 25 °C). Changes were observed through transmission electron microscopy. A direct correlation between increased salinity and cell wall thickening (> 0.2 μm) was observed, along with a significant relationship between pH and the presence of extracellular polymeric substances (EPS) on the outside of the cell wall. The observed morphological changes could confirm that an ubiquitous fungus such as E. nigrum requires adaptive responses to co-inhabit freshwater, marine, and terrestrial substrates.
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Affiliation(s)
- Ramón Ahumada-Rudolph
- Laboratorio de Bioprocesos y Biotratamientos, Departamento de Ingeniería en Maderas, Universidad del Bío-Bío, Collao 1202, PO Box 5-C, Concepción, Chile
| | - Vanessa Novoa
- Department of Geography, School of Architecture, Urbanism and Geography, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C, Concepción, Chile.
| | - José Becerra
- Laboratorio de Química de Productos Naturales, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C, Concepción, Chile
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Braga RM, Padilla G, Araújo WL. The biotechnological potential of Epicoccum spp.: diversity of secondary metabolites. Crit Rev Microbiol 2018; 44:759-778. [PMID: 30369284 DOI: 10.1080/1040841x.2018.1514364] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Epicoccum is a genus of ubiquitous fungi typically found in air, in soil, and on decaying vegetation. They also commonly display an endophytic lifestyle and are isolated from diverse plant tissues. The fungi from the genus Epicoccum are mainly known for their use as biocontrol agents against phytopathogens and for their ability to produce many secondary metabolites with potential biotechnological applications, such as antioxidant, anticancer,r and antimicrobial compounds. Among the bioactive compounds produced by Epicoccum spp., epicocconone is a commercially available fluorophore, D8646-2-6 is a patented telomerase inhibitor, and taxol is an anticancer drug originally isolated from Taxus brevifolia. Epicoccum spp. also produces epicolactone, an antimicrobial compound with a unique and complex structure that has aroused considerable interest in the chemical-synthesis community. The main goal of the present review is to discuss the diversity of secondary metabolites produced by Epicoccum spp., their biotechnological applications, and proposed hypothetical biosynthesis. In addition, the use of Epicoccum spp. as biocontrol agents and the pigments produced by these fungi are also discussed.
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Affiliation(s)
- Raíssa Mesquita Braga
- a NAP-BIOP - LABMEM, Department of Microbiology, Institute of Biomedical Sciences , University of São Paulo , São Paulo , Brazil
| | - Gabriel Padilla
- a NAP-BIOP - LABMEM, Department of Microbiology, Institute of Biomedical Sciences , University of São Paulo , São Paulo , Brazil
| | - Welington Luiz Araújo
- a NAP-BIOP - LABMEM, Department of Microbiology, Institute of Biomedical Sciences , University of São Paulo , São Paulo , Brazil
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Prathyusha A, Mohana Sheela G, Bramhachari P. Chemical characterization and antioxidant properties of exopolysaccharides from mangrove filamentous fungi Fusarium equiseti ANP2. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2018; 19:e00277. [PMID: 30197873 PMCID: PMC6127374 DOI: 10.1016/j.btre.2018.e00277] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 12/27/2022]
Abstract
A filamentous fungi F. equiseti strain ANP2 with good exopolysaccharide (EPS) yield, apparent viscosity was screened and isolated from Krishna estuarine mangrove sediments. Based on molecular characteristics the selected strain was confirmed as F. equiseti, yielded EPS (4.9 ± 0.25 g/L) and whole cell biomass (3.5 ± 0.2 g/L) in MSM during early stationary phase. The crude EPS was purified by chromatography of Q-Sepharose and Superdex-75, affording Ms and MF-1 fractions were obtained, respectively. Chemical analyses revealed that EPS is primarily composed of neutral sugars and proteins. FTIR-spectroscopy revealed presence of hydroxyl, carbonyl groups and glycosidic bonds which correspond to typical heteropolysaccharide. GC analysis demonstrated that MF-1 mainly consist of mannose (72.6%) and glucose (27.3%). Viscosity studies exhibited typical non-Newtonian pseudoplastic behaviour with high viscosity. The scavenging ability on hydroxyl radicals, indicate that MF-1-EPS has good antioxidant activity. Current study demonstrated that MF-1 differed from previously characterized Fusarium sp., and can serve as potential antioxidant.
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Affiliation(s)
- A.M.V.N. Prathyusha
- Department of Biotechnology, Krishna University, Machilipatnam, AP, 52100, India
| | - G. Mohana Sheela
- Departmnt of Biotecnology, Vignan University, Vadlamudi, Guntur, AP, 522213, India
| | - P.V. Bramhachari
- Department of Biotechnology, Krishna University, Machilipatnam, AP, 52100, India
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Zhou R, Liao X, Li H, Li J, Feng P, Zhao B, Xu S. Isolation and Synthesis of Misszrtine A: A Novel Indole Alkaloid From Marine Sponge-Associated Aspergillus sp. SCSIO XWS03F03. Front Chem 2018; 6:212. [PMID: 29951479 PMCID: PMC6008316 DOI: 10.3389/fchem.2018.00212] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/23/2018] [Indexed: 11/13/2022] Open
Abstract
A novel indole alkaloid, misszrtine A (1), was isolated from marine sponge-derived fungus Aspergillus sp. SCSIO XWS03F03. The planar structure of 1 was assigned by analysis of spectroscopic data, the absolute configuration of which was unambiguously determined by total synthesis. Compound 1 represents the first example of N-isopentenyl tryptophan methyl ester with a phenylpropanoic amide arm, which exhibited a potent antagonistic activity on HL60 (IC50 = 3.1 μM) and LNCaP (IC50 = 4.9 μM) cell lines. Bioactivity evaluation reveals that functional group on indole nitrogen of 1 has a great effect on its cytotoxity, which provides a mean to probe the structure-activity relationships of 1.
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Affiliation(s)
- Rong Zhou
- Department of Chemistry, Jinan University, Guangzhou, China
| | - Xiaojian Liao
- Department of Chemistry, Jinan University, Guangzhou, China
| | - Hangbin Li
- Department of Chemistry, Jinan University, Guangzhou, China
| | - Jing Li
- Department of Chemistry, Jinan University, Guangzhou, China
| | - Pengju Feng
- Department of Chemistry, Jinan University, Guangzhou, China
| | - BingXin Zhao
- Department of Chemistry, Jinan University, Guangzhou, China
| | - Shihai Xu
- Department of Chemistry, Jinan University, Guangzhou, China
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20
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Abdelhamid A, Jouini M, Bel Haj Amor H, Mzoughi Z, Dridi M, Ben Said R, Bouraoui A. Phytochemical Analysis and Evaluation of the Antioxidant, Anti-Inflammatory, and Antinociceptive Potential of Phlorotannin-Rich Fractions from Three Mediterranean Brown Seaweeds. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2018; 20:60-74. [PMID: 29344826 DOI: 10.1007/s10126-017-9787-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 11/27/2017] [Indexed: 06/07/2023]
Abstract
Phlorotannins, phenolic compounds produced exclusively by seaweeds, have been reported to possess various pharmacological properties. However, there have been few works on these compounds from Mediterranean seaweeds. In this study, we investigated the phytochemical analysis and pharmacological potential of phlorotannin-rich fractions from three brown seaweeds collected along the Tunisia coast: Cystoseira sedoides (PHT-SED), Cladostephus spongeosis (PHT-CLAD), and Padina pavonica (PHT-PAD). Phytochemical determinations showed considerable differences in total phenolic content (TPC) and phlorotannin content (PHT). The highest TPC level (26.45 mg PGE/g dry material (Dm)) and PHT level (873.14 μg PGE/g Dm) were observed in C. sedoides. The antioxidant properties of these three fractions assessed by three different methods indicated that C. sedoides displayed the highest total antioxidant activity among the three species (71.30 mg GAE/g Dm), as well as the free radical scavenging activity with the lowest IC50 value in both DPPH (27.7 μg/mL) and ABTS (19.1 μg/mL) assays. Furthermore, the pharmacological screening of the anti-inflammatory potential of these fractions using in vivo models, in comparison to reference drugs, established a remarkable activity of PHT-SED at the dose of 100 mg/kg; the inhibition percentages of ear edema in mice model and paw edema in rats model were of 82.55 and 81.08%, respectively. The content of malondialdehyde (MDA) in liver tissues has been quantified, and PHT-SED was found to remarkably increase the lipid peroxidation in rat liver tissues. In addition, in two pain mice models, PHT-SED displayed a profound antinociceptive activity at 100 mg/kg and has proved a better analgesic activity when used in combination with the opioid drug, tramadol.
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Affiliation(s)
- Amal Abdelhamid
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy of Monastir, University of Monastir, 5000, Monastir, Tunisia.
| | - Meriem Jouini
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity, Medicinal Chemistry and Natural Products Team, Faculty of Sciences of Monastir, University of Monastir, 5019, Monastir, Tunisia
| | - Haifa Bel Haj Amor
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy of Monastir, University of Monastir, 5000, Monastir, Tunisia
| | - Zeineb Mzoughi
- Laboratory of Interfaces and Advanced Materials, Faculty of Sciences of Monastir, University of Monastir, 5000, Monastir, Tunisia
| | - Mehdi Dridi
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy of Monastir, University of Monastir, 5000, Monastir, Tunisia
| | - Rafik Ben Said
- National Institute of Marine Sciences and Technologies, Salambôo, Tunis, Tunisia
| | - Abderrahman Bouraoui
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy of Monastir, University of Monastir, 5000, Monastir, Tunisia
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Wang Y, Lin XP, Ju ZR, Liao XJ, Huang XJ, Zhang C, Zhao BX, Xu SH. Aspergchromones A and B, two new polyketides from the marine sponge-associated fungus Aspergillus sp. SCSIO XWS03F03. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2017; 19:684-690. [PMID: 28276769 DOI: 10.1080/10286020.2016.1231673] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 08/30/2016] [Indexed: 06/06/2023]
Abstract
Two new polyketides, aspergchromones A (1) and B (2), together with five known compounds, secalonic acid D (3), noreugenin (4), (3S)-5-hydroxymellein (5), (4S)-6-hydroxyisosclerone (6), and (-)-regiolone (7), were isolated from the ethyl acetate extract of marine sponge-derived fungus Aspergillus sp. SCSIO XWS03F03. Their structures were elucidated by means of spectroscopic techniques (1D and 2D NMR, MS, UV, and IR). The absolute configurations of the new compounds were established by ECD calculations. Compound 3 showed moderate antimicrobial activity.
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Affiliation(s)
- Ying Wang
- a Department of Chemistry , Jinan University , Guangzhou 510632 , China
| | - Xiu-Ping Lin
- b Key Laboratory of Tropical Marine Bio-resources and Ecology , South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou 510301 , China
| | - Zhi-Ran Ju
- a Department of Chemistry , Jinan University , Guangzhou 510632 , China
| | - Xiao-Jian Liao
- a Department of Chemistry , Jinan University , Guangzhou 510632 , China
| | - Xiao-Jun Huang
- c College of Pharmacy , Jinan University , Guangzhou 510632 , China
| | - Chen Zhang
- b Key Laboratory of Tropical Marine Bio-resources and Ecology , South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou 510301 , China
| | - Bing-Xin Zhao
- a Department of Chemistry , Jinan University , Guangzhou 510632 , China
| | - Shi-Hai Xu
- a Department of Chemistry , Jinan University , Guangzhou 510632 , China
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Extracellular polysaccharide with novel structure and antioxidant property produced by the deep-sea fungus Aspergillus versicolor N 2 bc. Carbohydr Polym 2016; 147:272-281. [DOI: 10.1016/j.carbpol.2016.03.090] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 03/21/2016] [Accepted: 03/29/2016] [Indexed: 12/31/2022]
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23
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Chen Y, Mao WJ, Yan MX, Liu X, Wang SY, Xia Z, Xiao B, Cao SJ, Yang BQ, Li J. Purification, Chemical Characterization, and Bioactivity of an Extracellular Polysaccharide Produced by the Marine Sponge Endogenous Fungus Alternaria sp. SP-32. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2016; 18:301-313. [PMID: 27153822 DOI: 10.1007/s10126-016-9696-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 01/15/2016] [Indexed: 06/05/2023]
Abstract
Marine sponges are ancient and simple multicellular filter-feeding invertebrates attached to solid substrates in benthic habitats and host a variety of fungi both inside and on their surface because of its unique ingestion and digest system. Investigation on marine sponge-associated fungi mainly focused on the small molecular metabolites, yet little attention had been paid to the extracellular polysaccharides. In this study, a homogeneous extracellular polysaccharide AS2-1 was obtained from the fermented broth of the marine sponge endogenous fungus Alternaria sp. SP-32 using ethanol precipitation, anion-exchange, and size-exclusion chromatography. Results of chemical and spectroscopic analyses showed that AS2-1 was composed of mannose, glucose, and galactose with a molar ratio of 1.00:0.67:0.35, and its molecular weight was 27.4 kDa. AS2-1 consists of a mannan core and a galactoglucan chain. The mannan core is composed of (1→6)-α-Manp substituted at C-2 by (1→2)-α-Manp with different degrees of polymerization. The galactoglucan chain consists of (1→6)-α-Glcp residues with (1→6)-β-Galf residues attached to the last glucopyranose residue at C-6. (1→6)-β-Galf residues have additional branches at C-2 consisting of disaccharide units of (1→2)-β-Galf and (1→2)-α-Glcp residues. The glucopyranose residue of the galactoglucan chain is linked to the mannan core. AS2-1 possessed a high antioxidant activity as evaluated by scavenging of 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radicals in vitro. AS2-1 was also evaluated for cytotoxic activity on Hela, HL-60, and K562 cell lines by the MTT and SRB methods. The investigation demonstrated that AS2-1 was a novel extracellular polysaccharide with different characterization from extracellular polysaccharides produced by other marine microorganisms.
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Affiliation(s)
- Yin Chen
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
- College of Food and Pharmacy, Zhejiang Ocean University, 18 Haiyuan Road, Zhoushan, 316000, People's Republic of China
| | - Wen-Jun Mao
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China.
| | - Meng-Xia Yan
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
| | - Xue Liu
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
| | - Shu-Yao Wang
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
| | - Zheng Xia
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
| | - Bo Xiao
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
| | - Su-Jian Cao
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
| | - Bao-Qin Yang
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
| | - Jie Li
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
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25
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Chen YL, Mao WJ, Tao HW, Zhu WM, Yan MX, Liu X, Guo TT, Guo T. Preparation and characterization of a novel extracellular polysaccharide with antioxidant activity, from the mangrove-associated fungus Fusarium oxysporum. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2015; 17:219-228. [PMID: 25627692 DOI: 10.1007/s10126-015-9611-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 01/07/2015] [Indexed: 06/04/2023]
Abstract
Marine fungi are recognized as an abundant source of extracellular polysaccharides with novel structures. Mangrove fungi constitute the second largest ecological group of the marine fungi, and many of them are new or inadequately described species and may produce extracellular polysaccharides with novel functions and structures that could be explored as a source of useful polymers. The mangrove-associated fungus Fusarium oxysporum produces an extracellular polysaccharide, Fw-1, when grown in potato dextrose-agar medium. The homogeneous Fw-1 was isolated from the fermented broth by a combination of ethanol precipitation, ion-exchange, and gel filtration chromatography. Chemical and spectroscopic analyses, including one- and two-dimensional nuclear magnetic resonance spectroscopies showed that Fw-1 consisted of galactose, glucose, and mannose in a molar ratio of 1.33:1.33:1.00, and its molecular weight was about 61.2 kDa. The structure of Fw-1 contains a backbone of (1 → 6)-linked β-D-galactofuranose residues with multiple side chains. The branches consist of terminal α-D-glucopyranose residues, or short chains containing (1 → 2)-linked α-D-glucopyranose, (1 → 2)-linked β-D-mannopyranose, and terminal β-D-mannopyranose residues. The side chains are connected to C-2 of galactofuranose residues of backbone. The antioxidant activity of Fw-1 was evaluated with the scavenging abilities on hydroxyl, superoxide, and 1,1-diphenyl-2-picrylhydrazyl radicals in vitro, and the results indicated that Fw-1 possessed good antioxidant activity, especially the scavenging ability on hydroxyl radicals. The investigation demonstrated that Fw-1 is a novel galactofuranose-containing polysaccharide with different structural characteristics from extracellular polysaccharides from other marine microorganisms and could be a potential source of antioxidant.
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Affiliation(s)
- Yan-Li Chen
- Key Laboratory of Marine Drugs, Ministry of Education, Institute of Marine Drugs and Foods, Ocean University of China, 5 Yushan Road, Qingdao, 266003, People's Republic of China
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Sun Y, Jiang L, Wei D. Partial characterization, in vitro antioxidant and antiproliferative activities of patatin purified from potato fruit juice. Food Funct 2014; 4:1502-11. [PMID: 24056776 DOI: 10.1039/c3fo60248f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Patatin from potato fruit juice was purified by a combination of ultrafiltration and chromatographic techniques. The in vitro antioxidant and antiproliferative activity against mouse melanoma B16 cells of patatin were investigated. The results showed that the monosaccharide composition of patatin included rhamnose, mannose, glucose, and galactose with a molar ratio of 41 : 30 : 21 : 8, and patatin consisted of (1 → 3) linked α-mannose, (1 → 4) linked α-galactose, (1 → 4) linked β-glucose, and (1 → 2) linked α-rhamnose. Furthermore, patatin possessed significant antioxidant activities measured by scavenging of the DPPH and superoxide free radicals, notable reducing power, protective effects against hydroxyl radical-induced oxidative DNA damage and lipid peroxidation inhibitory. Moreover, patatin was identified as a potent antiproliferative agent against mouse melanoma B16 cells, causing cell cycle arrest in the G1 phase. Assays of apoptotic cells also showed that patatin treatment at concentrations of 20 mg mL(-1) resulted in a marked reduction of viable cells. These results obtained in in vitro models suggested that patatin may have potential application as a cancer chemopreventive agent and food ingredient.
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Affiliation(s)
- Ying Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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Abstract
SIGNIFICANCE Oxidative stress resulting from excessive reactive oxygen/nitrogen/electrophilic species (ROS/RNS/RES) can lead to diseases such as cancer. The health benefits of dietary fruits and vegetables with antioxidant potential have received a great deal of attention. On the other hand, marine botanicals have been less well characterized and still remain as terra incognita. RECENT ADVANCES In some parts of the world, appreciable quantities of seaweeds are consumed on a daily basis. Along with current globalization, cuisines using seaweeds are now being used throughout the world, sometimes considered as healthy delicacies. Thus, it is relevant to explore the medicinal and pharmacological properties of seaweeds, as well as the health ramifications of this dietary practice. CRITICAL ISSUES We currently review the antioxidant potential of seaweed components such as sulfated polysaccharides, phenolic compounds (phlorotannins and bromophenols), and fucoxanthins. In addition to seaweeds, the chemistry and antioxidant activities of some marine fungi and bacteria are described. Since antioxidants are considered promising cancer chemopreventive agents, the in vitro, in vivo, and clinical aspects of antioxidant marine products are presented, and potential implications are discussed. FUTURE DIRECTIONS Although some data suggest that health benefits are derived from the consumption of marine natural products, further epidemiological or clinical studies are needed to strengthen these observations. In addition, many studies have demonstrated the antioxidant effects of seaweeds with in vitro models, but further characterization of bioavailability is necessary to suggest the significance of these responses. It is also important to define the safety of some seaweeds containing inorganic arsenics.
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Affiliation(s)
- Eun-Jung Park
- College of Pharmacy, University of Hawaii at Hilo, Hilo, HI 96720, USA
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Diversity of cultivable fungi associated with Antarctic marine sponges and screening for their antimicrobial, antitumoral and antioxidant potential. World J Microbiol Biotechnol 2013; 30:65-76. [PMID: 23824664 DOI: 10.1007/s11274-013-1418-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 06/23/2013] [Indexed: 10/26/2022]
Abstract
The diversity of sponge-associated fungi has been poorly investigated in remote geographical areas like Antarctica. In this study, 101 phenotypically different fungal isolates were obtained from 11 sponge samples collected in King George Island, Antarctica. The analysis of ITS sequences revealed that they belong to the phylum Ascomycota. Sixty-five isolates belong to the genera Geomyces, Penicillium, Epicoccum, Pseudeurotium, Thelebolus, Cladosporium, Aspergillus, Aureobasidium, Phoma, and Trichocladium but 36 isolates could not be identified at genus level. In order to estimate the potential of these isolates as producers of interesting bioactivities, antimicrobial, antitumoral and antioxidant activities of fungal culture extracts were assayed. Around 51% of the extracts, mainly from the genus Geomyces and non identified relatives, showed antimicrobial activity against some of the bacteria tested. On the other hand, around 42% of the extracts showed potent antitumoral activity, Geomyces sp. having the best performance. Finally, the potential of the isolated fungi as producers of antioxidant activity seems to be moderate. Our results suggest that fungi associated with Antarctic sponges, particularly Geomyces, would be valuable sources of antimicrobial and antitumoral compounds. To our knowledge, this is the first report describing the biodiversity and the metabolic potential of fungi associated with Antarctic marine sponges.
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BelHadj S, Hentati O, Elfeki A, Hamden K. Inhibitory activities of Ulva lactuca polysaccharides on digestive enzymes related to diabetes and obesity. Arch Physiol Biochem 2013; 119:81-7. [PMID: 23638862 DOI: 10.3109/13813455.2013.775159] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to evaluate the effect of alga Ulva lactuca polysaccharides (ULPS) on key enzymes related to diabetes and obesity. This marine natural product, ULPS, exerted potential inhibition on key enzymes related to starch digestion and absorption in both plasma and small intestine mainly α-amylase by 53% and 34% and maltase by 97 and 164% respectively, leading to a significant decrease in blood glucose rate by 297%. Moreover, ULPS potentially inhibited key enzymes of lipid metabolism and absorption as lipase activity in both plasma and small intestine by 235 and 287% respectively, which led to a notable decrease of blood LDL-cholesterol and triglycerides levels, and in the counterpart an increase in HDL-cholesterol level in surviving diabetic rats. Additively, ULPS significantly protected the liver-kidney functions, by decreasing of aspartate transaminase (AST), alanine transaminase (ALT) and gamma-glytamyl transpeptidase (GGT) activities and creatinine, urea and albumin rates in plasma.
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Affiliation(s)
- Sahla BelHadj
- Laboratory of Animal Ecophysiology, University of Sfax, Faculty of Sciences of Sfax, PO Box 95, Sfax, Tunisia
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30
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Guo S, Mao W, Li Y, Gu Q, Chen Y, Zhao C, Li N, Wang C, Guo T, Liu X. Preparation, structural characterization and antioxidant activity of an extracellular polysaccharide produced by the fungus Oidiodendron truncatum GW. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.01.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Hu DJ, Cheong KL, Zhao J, Li SP. Chromatography in characterization of polysaccharides from medicinal plants and fungi. J Sep Sci 2012; 36:1-19. [DOI: 10.1002/jssc.201200874] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 10/10/2012] [Accepted: 10/10/2012] [Indexed: 02/04/2023]
Affiliation(s)
- De-jun Hu
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao; China
| | - Kit-leong Cheong
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao; China
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao; China
| | - Shao-ping Li
- State Key Laboratory of Quality Research in Chinese Medicine; Institute of Chinese Medical Sciences; University of Macau; Macao; China
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Duarte K, Rocha-Santos TA, Freitas AC, Duarte AC. Analytical techniques for discovery of bioactive compounds from marine fungi. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2011.10.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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