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Thangavelu N, Jeyabalan J, Veluchamy A, Belur PD. Production of tannase from a newly isolated yeast, Geotrichum cucujoidarum using agro-residues. Prep Biochem Biotechnol 2024; 54:564-572. [PMID: 37698943 DOI: 10.1080/10826068.2023.2256011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
With an aim of producing commercially important tannase enzyme using cheap and readily available agro-residues, leaves of Indian Gooseberry (Phyllanthus emblica) and Jamun (Syzygium cumini), peels of Lemon (Citrus limon), and Pomegranate (Punica granatum) were screened. Newly isolated Geotrichum cucujoidarum was utilized for the study. Preliminary studies indicated that tannase titer obtained is not proportional to the tannin content of the agro-residues and solid state fermentation superior compared to submerged fermentation. Jamun mixed with lemon peel in equal proportion supplemented with minerals under solid-state fermentation gave a tannase titer of 15.46 U/g dry solids. Through successful implantation of Plackett-Burman design, yeast extract concentration, inoculum volume, and amount of substrate were found to be the most significant factors. Further optimization of these three factors through Response Surface Methodology resulted in the 1.7-fold increase in tannase titer. Validation experiments using 3.97 g of Jamun leaves + lemon peel powder mixed with a nutrient solution having (w/v) yeast extract - 1.1%, dextrose - 3%, Urea - 1.125%, potassium chloride - 0.1%, magnesium sulfate heptahydrate - 0.1% with the initial pH of 5, inoculated with 2.48 ml of inoculum gave a tannase titer of 26.43 U/g dry solids after 6 days of solid-state fermentation.
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Affiliation(s)
- Nishanthini Thangavelu
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
| | - Jothika Jeyabalan
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
| | - Ajithkumar Veluchamy
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
| | - Prasanna D Belur
- Department of Chemical Engineering, National Institute of Technology Karnataka, Surathkal, Mangalore, India
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Thakur N, Nath AK, Sharma A. Optimization of production conditions, isolation, purification, and characterization of tannase from filamentous fungi. Folia Microbiol (Praha) 2024:10.1007/s12223-024-01154-3. [PMID: 38512632 DOI: 10.1007/s12223-024-01154-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/27/2024] [Indexed: 03/23/2024]
Abstract
Tannase-producing filamentous fungi residing alongside tannin-rich ambient in the Northwest Himalayas were isolated at laboratory conditions and further identified by 18S ribosomal RNA gene sequencing. Five most potent tannase producing strains (EI ≥ 2.0), designated Aspergillus fumigatus AN1, Fusarium redolens AN2, Penicillium crustosum AN3, Penicillium restrictum AN4, and Penicillium commune AN5, were characterized. The strain Penicillium crustosum AN3 exhibited a maximum zone dia (25.66 mm ± 0.38). During solid-state fermentation, a maximal amount of tannase was attained with Penicillium crustosum AN3 using pine needles (substrate) by adopting response surface methodology for culture parameter optimization. Gel filtration chromatography yielded 46.48% of the partially purified enzyme with 3.94-fold of tannase purification. We found two subunits in enzyme-117.76 KDa and 88.51 KDa, respectively, in the SDS-PAGE. Furthermore, the characterization of partially purified tannase revealed a maximum enzyme activity of 8.36 U/mL at 30 °C using a substrate concentration (methyl gallate) of 10 mM. To broaden the knowledge of crude enzyme application, dye degradation studies were subjected to extracellular crude tannase from Penicillium crustosum AN3 where the maximum degradation achieved at a low enzyme concentration (5 ppm).
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Affiliation(s)
- Nisha Thakur
- Department of Molecular Biology and Biotechnology, Dr. YSPUHF, Nauni, 173230, India.
| | - Amarjit K Nath
- Department of Molecular Biology and Biotechnology, Dr. YSPUHF, Nauni, 173230, India
| | - Amit Sharma
- Department of Molecular Biology and Biotechnology, Dr. YSPUHF, Nauni, 173230, India
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Dynamic evolution and correlation between microorganisms and metabolites during manufacturing process and storage of Pu-erh tea. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113128] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Characterization of Apple Juice Clarified by Tannase from Serratia marcescens IMBL5 Produced using Agro-industrial Waste Materials. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.1.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In the present study, clarification of apple juice with tannase from S. marcescens IMBL5 produced using various agro-waste materials was carried out. Sugarcane bagasse was found to be the most suitable source for the augmented production of tannase enzyme by response surface methodology with the temperature at 40 °C, pH 4.5 and the incubation period of 96 hrs. The enzyme was quantified and partially purified through protein precipitation. The partially purified tannase with gelatin clarified about 62% of the apple juice in 3 hr of incubation at room temperature and it was gently increased with the incubation period. The detannification was characterized by estimating tannin content of the clarified juice. The amount of total reducing sugar in the juice was increased almost 50 % after 5 hours of incubation period. FTIR spectrum of the clarified juice revealed that the conformational changes that occurred in the functional groups. The spectrum absorptions between 500 and 1700 cm-1 mainly reflected the C=O stretch of the pectins and acids and C–O modes of the carbohydrates that correspond to the absorption zones of the sugars. The HPLC analysis of the clarified apple juice indicate the presence of phenolic compounds and sugar derivatives such as gallic acid, catechin, caffeic acid, epicatechin, glucose and sucrose which confirms the quality and clarity of the apple juice using the tannase enzyme.
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Wang B. Study on the Correlation between Microorganism and Quality Formation of Pu’ er Tea during Fermentation. IOP CONFERENCE SERIES: EARTH AND ENVIRONMENTAL SCIENCE 2019; 332:032055. [DOI: 10.1088/1755-1315/332/3/032055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Abstract
Pu’ er tea is a solid-state fermented tea by microorganisms, and its fermentation can not be separated from the role of microorganisms. The dynamic changes of microorganisms in the fermentation process of Pu’ er tea have an important effect on the quality of Pu’ er tea. In this paper, the correlation between microorganism activity and its metabolites and the flavor quality of Pu’ er tea during the fermentation process of its fermentation is studied by analyzing the changes of microorganisms in the process of Pu’ er tea fermentation at various stages, which has provided a scientific theoretical guidance for the fermentation process of Pu’ er tea.
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R.K. G, Krishnamurthy M, Neelamegam R, Shyu DJ, Muthukalingan K, Nagarajan K. Purification, structural characterization and biotechnological potential of tannase enzyme produced by Enterobacter cloacae strain 41. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.10.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Fernando MS, Wimalasiri AKDVK, Ratnayake SP, Jayasinghe JMARB, William GR, Dissanayake DP, de Silva KMN, de Silva RM. Improved nanocomposite of montmorillonite and hydroxyapatite for defluoridation of water. RSC Adv 2019; 9:35588-35598. [PMID: 35528100 PMCID: PMC9074413 DOI: 10.1039/c9ra03981c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 10/23/2019] [Indexed: 11/22/2022] Open
Abstract
A novel hydroxyapatite montmorillonite (HAP-MMT) nanocomposite system was synthesized using a simple wet chemical in situ precipitation method. Neat nano hydroxyapatite (HAP) was also synthesized for comparison. The characterization of the materials was carried out using Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and Brunauer–Emmett–Teller (BET) isotherms to study the functional groups, morphology, crystallinity and the surface area respectively. Batch adsorption studies and kinetic studies on fluoride adsorption were conducted for the HAP-MMT system and for neat HAP. The effect of parameters such as contact time, pH, initial concentration, temperature, and thermodynamic parameters and the effect of coexisting ions on fluoride adsorption by HAP-MMT were studied. Results of the isotherm experiments were fitted to four adsorption isotherm models namely Langmuir, Freundlich, Temkin and Dubinin Radushkevich. Fluoride adsorption over HAP-MMT fitted to the Freundlich adsorption isotherm model and showed more than two-fold improved adsorption capacity (16.7 mg g−1) compared to neat HAP. The best-fitting kinetic model for both adsorbents was found to be pseudo second order. Calculated thermodynamic parameters indicated that the fluoride adsorption by HAP-MMT is more favorable compared to that on HAP within the temperature range of 27 °C–60 °C. Improved fluoride adsorption by HAP-MMT is attributed to the exfoliated nature of HAP-MMT. Gravity filtration studies carried out using a 1.5 ppm fluoride solution, which is closer to the ground water fluoride concentrations of Chronic Kidney Disease of unknown etiology (CKDu) affected areas in Sri Lanka, resulted in a 1600 ml g−1 break through volume indicating the potential of HAP-MMT to be used in real applications. A novel hydroxyapatite montmorillonite (HAP-MMT) nanocomposite was synthesized using a simple wet chemical in situ precipitation method. This nanocomposite showed improved adsorption properties towards fluoride ions in water.![]()
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Affiliation(s)
- M. Shanika Fernando
- Centre for Advanced Materials and Devices (CAMD)
- Department of Chemistry
- University of Colombo
- Sri Lanka
| | - A. K. D. V. K. Wimalasiri
- Centre for Advanced Materials and Devices (CAMD)
- Department of Chemistry
- University of Colombo
- Sri Lanka
| | - S. P. Ratnayake
- Sri Lanka Institute of Nanotechnology (SLINTEC)
- Nanotechnology and Science Park
- Sri Lanka
| | - J. M. A. R. B. Jayasinghe
- Centre for Advanced Materials and Devices (CAMD)
- Department of Chemistry
- University of Colombo
- Sri Lanka
| | | | - D. P. Dissanayake
- Centre for Advanced Materials and Devices (CAMD)
- Department of Chemistry
- University of Colombo
- Sri Lanka
| | - K. M. Nalin de Silva
- Centre for Advanced Materials and Devices (CAMD)
- Department of Chemistry
- University of Colombo
- Sri Lanka
| | - Rohini M. de Silva
- Centre for Advanced Materials and Devices (CAMD)
- Department of Chemistry
- University of Colombo
- Sri Lanka
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Biotransformation of industrial tannins by filamentous fungi. Appl Microbiol Biotechnol 2018; 102:10361-10375. [PMID: 30293196 DOI: 10.1007/s00253-018-9408-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 09/18/2018] [Accepted: 09/18/2018] [Indexed: 10/28/2022]
Abstract
Tannins are secondary metabolites that are widely distributed in the plant kingdom. They act as growth inhibitors for many microorganisms: they are released upon microbial attack, helping to fight infection in plant tissues. Extraction of tannins from plants is an active industrial sector with several applications, including oenology, animal feeding, mining, the chemical industry, and, in particular, the tanning industry. However, tannins are also considered very recalcitrant pollutants in wastewater of diverse origin. The ability to grow on plant substrates rich in tannins and on industrial tannin preparations is usually considered typical of some species of fungi. These organisms are able to tolerate the toxicity of tannins thanks to the production of enzymes that transform or degrade these substrates, mainly through hydrolysis and oxidation. Filamentous fungi capable of degrading tannins could have a strong environmental impact as bioremediation agents, in particular in the treatment of tanning wastewaters.
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Wu C, Zhang F, Li L, Jiang Z, Ni H, Xiao A. Novel optimization strategy for tannase production through a modified solid-state fermentation system. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:92. [PMID: 29619088 PMCID: PMC5879601 DOI: 10.1186/s13068-018-1093-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 03/22/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND High amounts of insoluble substrates exist in the traditional solid-state fermentation (SSF) system. The presence of these substrates complicates the determination of microbial biomass. Thus, enzyme activity is used as the sole index for the optimization of the traditional SSF system, and the relationship between microbial growth and enzyme synthesis is always ignored. This study was conducted to address this deficiency. All soluble nutrients from tea stalk were extracted using water. The aqueous extract was then mixed with polyurethane sponge to establish a modified SSF system, which was then used to conduct tannase production. With this system, biomass, enzyme activity, and enzyme productivity could be measured rationally and accurately. Thus, the association between biomass and enzyme activity could be easily identified, and the shortcomings of traditional SSF could be addressed. RESULTS Different carbon and nitrogen sources exerted different effects on microbial growth and enzyme production. Single-factor experiments showed that glucose and yeast extract greatly improved microbial biomass accumulation and that tannin and (NH4)2SO4 efficiently promoted enzyme productivity. Then, these four factors were optimized through response surface methodology. Tannase activity reached 19.22 U/gds when the added amounts of tannin, glucose, (NH4)2SO4, and yeast extract were 7.49, 8.11, 9.26, and 2.25%, respectively. Tannase activity under the optimized process conditions was 6.36 times higher than that under the initial process conditions. The optimized parameters were directly applied to the traditional tea stalk SSF system. Tannase activity reached 245 U/gds, which is 2.9 times higher than our previously reported value. CONCLUSIONS In this study, a modified SSF system was established to address the shortcomings of the traditional SSF system. Analysis revealed that enzymatic activity and microbial biomass are closely related, and different carbon and nitrogen sources have different effects on microbial growth and enzyme production. The maximal tannase activity was obtained under the optimal combination of nutrient sources that enhances cell growth and tannase accumulation. Moreover, tannase production through the traditional tea stalk SSF was markedly improved when the optimized parameters were applied. This work provides an innovative approach to bioproduction research through SSF.
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Affiliation(s)
- Changzheng Wu
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021 China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021 Fujian China
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen, 361021 Fujian China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen, 361021 China
| | - Feng Zhang
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021 China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021 Fujian China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen, 361021 China
| | - Lijun Li
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021 China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021 Fujian China
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen, 361021 Fujian China
| | - Zhedong Jiang
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021 China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021 Fujian China
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen, 361021 Fujian China
| | - Hui Ni
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021 China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021 Fujian China
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen, 361021 Fujian China
| | - Anfeng Xiao
- College of Food and Biological Engineering, Jimei University, Xiamen, 361021 China
- Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, 361021 Fujian China
- Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Xiamen, 361021 Fujian China
- Xiamen Key Laboratory of Marine Functional Food, Xiamen, 361021 China
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Zhang W, Yang R, Fang W, Yan L, Lu J, Sheng J, Lv J. Characterization of thermophilic fungal community associated with pile fermentation of Pu-erh tea. Int J Food Microbiol 2016; 227:29-33. [PMID: 27046629 DOI: 10.1016/j.ijfoodmicro.2016.03.025] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 03/02/2016] [Accepted: 03/22/2016] [Indexed: 11/17/2022]
Abstract
This study aimed to characterize the thermophilic fungi in pile-fermentation process of Pu-erh tea. Physicochemical analyses showed that the high temperature and low pH provided optimal conditions for propagation of fungi. A number of fungi, including Blastobotrys adeninivorans, Thermomyces lanuginosus, Rasamsonia emersonii, Aspergillus fumigatus, Rhizomucor pusillus, Rasamsonia byssochlamydoides, Rasamsonia cylindrospora, Aspergillus tubingensis, Aspergillus niger, Candida tropicalis and Fusarium graminearum were isolated as thermophilic fungi under combination of high temperature and acid culture conditions from Pu-erh tea pile-fermentation. The fungal communities were analyzed by PCR-DGGE. Results revealed that those fungi are closely related to Debaryomyces hansenii, Cladosporium cladosporioides, A. tubingensis, R. emersonii, R. pusillus, A. fumigatus and A. niger, and the last four presented as dominant species in the pile process. These four preponderant thermophilic fungi reached the order of magnitude of 10(7), 10(7), 10(7) and 10(6)copies/g dry tea, respectively, measured by real-time quantitative PCR (q-PCR). The results indicate that the thermophilic fungi play an important role in Pu-erh tea pile fermentation.
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Affiliation(s)
- Wei Zhang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ruijuan Yang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China; Pu'er Institute of Pu-erh Tea, Pu'er, Yunnan 665000, China
| | - Wenjun Fang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liang Yan
- Pu'er Institute of Pu-erh Tea, Pu'er, Yunnan 665000, China
| | - Jun Lu
- Institute for Applied Ecology New Zealand, School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 1142, New Zealand; School of Interprofessional Health Studies, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland 0627, New Zealand; Institute of Biomedical Technology, Auckland University of Technology, Auckland 1142, New Zealand
| | - Jun Sheng
- Faculty of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China.
| | - Jie Lv
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
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Sharifzadeh A, Javan AJ, Shokri H, Abbaszadeh S, Keykhosravy K. Evaluation of antioxidant and antifungal properties of the traditional plants against foodborne fungal pathogens. J Mycol Med 2016; 26:e11-7. [PMID: 26706134 DOI: 10.1016/j.mycmed.2015.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 11/14/2015] [Accepted: 11/22/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine the antioxidant and antifungal activities of the essential oils from five aromatic herbs, including Thymus vulgaris, Chamaemelum nobile, Ziziphora clinopodioides, Zingiber officinale and Cuminum cyminum, against different Aspergillus and Penicillium species. METHODS The oils were subjected to screening for their possible antioxidant activity using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The susceptibility test for the oils was carried out in terms of minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) using microdilution method. RESULTS The values of the essential oils in DPPH assay were as follows: T. vulgaris (450.11±5.23 μg/mL), Ch. nobile (602.73±4.8 μg/mL), Ziz. clinopodioides (1238.82±9.3 μg/mL), Cu. cyminum (1255.52±8.92 μg/mL) and Zin. officinale (5595.06±8.24 μg/mL). Our findings also indicated a strong activity against tested fungi for the oil of T. vulgaris (1250 μg/mL), followed by Cu. cyminum (1416 μg/mL), Zin. officinale (1833 μg/mL), Ziz. clinopodioides (2166 μg/mL) and Ch. nobile (3750 μg/mL). This study confirmed the excellent antifungal and antioxidant properties of the essential oils, especially T. vulgaris, against foodborne pathogenic fungi. CONCLUSION Owing to their strong protective features, these oils could be used in ethno-medicine as preventers of lipid peroxidation and cellular damage, and in food industries as preservers of foodstuffs against spoilage fungi. Also, they could be the candidates to develop new antibiotics and disinfectants to control infective agents.
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Affiliation(s)
- A Sharifzadeh
- Mycology research center, faculty of veterinary medicine, university of Tehran, Azadi Street, Tehran, Iran.
| | - A Jebeli Javan
- Department of food hygiene, faculty of veterinary medicine, Semnan university, Semnan, Iran
| | - H Shokri
- Faculty of veterinary medicine, Amol university of special modern technologies, Amol, Iran
| | - S Abbaszadeh
- Health research center, Baqiyatallah university of medical sciences, Tehran, Iran
| | - K Keykhosravy
- Department of food hygiene, faculty of veterinary medicine, Semnan university, Semnan, Iran
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Daâssi D, Lozano-Sánchez J, Borrás-Linares I, Belbahri L, Woodward S, Zouari-Mechichi H, Mechichi T, Nasri M, Segura-Carretero A. Olive oil mill wastewaters: phenolic content characterization during degradation by Coriolopsis gallica. CHEMOSPHERE 2014; 113:62-70. [PMID: 25065791 DOI: 10.1016/j.chemosphere.2014.04.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 04/14/2014] [Accepted: 04/16/2014] [Indexed: 06/03/2023]
Abstract
Olive mill wastewaters (OMW) pose a serious environmental concern owing to high polyphenol content. Decolorization and degradation of phenolic compounds (PC) by Coriolopsis gallica was demonstrated in our laboratory as a potential biotreatment of OMW in solid and liquid media. High performance liquid chromatography coupled to electrospray time-of-flight mass spectrometry was used to analyze the evolution of the main phenolic compounds during the C. gallica biodegradation process. Amongst total the compounds characterized in methanolic extracts of OMW, 12 were unknown, 15 were from different polyphenolic families, and 27 were other non-phenolic compounds. The evolution of PC content during the degradation process indicated that, despite the complexity of the OMW phenolic fraction, C. gallica was able to grow on OMW-based media using PC as sources of carbon and energy, particularly acids, alcohols, lignans and flavones. Complete dephenolization of OMW was obtained.
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Affiliation(s)
- Dalel Daâssi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Jesus Lozano-Sánchez
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Italy; Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Isabel Borrás-Linares
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Lassaad Belbahri
- Laboratory of Soil Biology, University of Neuchatel, Rue Emile Argand 11, CH-2009 Neuchatel, Switzerland
| | - Steve Woodward
- University of Aberdeen, Institute of Biological and Environmental Science, Department of Plant and Soil Science, Cruickshank Building, Aberdeen AB24 3UU, Scotland, UK
| | - Héla Zouari-Mechichi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Tahar Mechichi
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia.
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d'Ingénieurs de Sfax, University of Sfax, Route de Soukra Km 4,5, BP 1173, 3038 Sfax, Tunisia
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
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Abbaszadeh S, Sharifzadeh A, Shokri H, Khosravi AR, Abbaszadeh A. Antifungal efficacy of thymol, carvacrol, eugenol and menthol as alternative agents to control the growth of food-relevant fungi. J Mycol Med 2014; 24:e51-6. [PMID: 24582134 DOI: 10.1016/j.mycmed.2014.01.063] [Citation(s) in RCA: 160] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 11/23/2013] [Accepted: 01/07/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE This work is an attempt to examine the antifungal activity of thymol, carvacrol, eugenol and menthol against 11 food-decaying fungi. METHODS The susceptibility test for the compounds was carried out in terms of minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) using microdilution method in 96 multi-well microtiter plates. RESULTS Results indicated that all compounds were effective to varying extents against various fungal isolates, with the highest efficacy displayed by carvacrol (mean MIC value: 154.5 μg/mL) (P<0.05). The incorporation of increased concentrations of all compounds to the media led to progressive and significant reduction in growth for all fungi. The most potent inhibitory activity of thymol, carvacrol, eugenol and menthol was found for Cladosporium spp. (MIC: 100 μg/mL), Aspergillus spp. (MIC: 100 μg/mL), Cladosporium spp. (MIC: 350 μg/mL), and Aspergillus spp. and Cladosporium spp. (MIC: 125 μg/mL), respectively. CONCLUSION Thus, the application of these herbal components could be considered as a good alternatives to inhibit fungal growth and to reduce the use of synthetic fungicides.
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Affiliation(s)
- S Abbaszadeh
- Baqiyatallah university of medical sciences, Tehran, Iran
| | - A Sharifzadeh
- Mycology research center, faculty of veterinary medicine, university of Tehran, Tehran, Iran
| | - H Shokri
- Faculty of veterinary medicine, Amol university of special modern technologies, 24th aftab, Imam Khomeini street, Amol, Iran.
| | - A R Khosravi
- Mycology research center, faculty of veterinary medicine, university of Tehran, Tehran, Iran
| | - A Abbaszadeh
- Kermanshah university of medical sciences, Kermanshah, Iran
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Hanafi F, Mountadar M, Etahiri S, Fekhaoui M, Assobhei O. Biodegradation of Toxic Compounds in Olive Mill Wastewater by a Newly Isolated Potent Strain: <i>Aspergillus niger</i> van Tieghem. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jwarp.2013.58078] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lipase production by Aspergillus ibericus using olive mill wastewater. Bioprocess Biosyst Eng 2012; 36:285-91. [PMID: 22791217 DOI: 10.1007/s00449-012-0783-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 06/28/2012] [Indexed: 10/28/2022]
Abstract
Olive mill wastewater (OMW) characteristics make it a suitable resource to be used as a microbial culture media to produce value-added compounds, such as enzymes. In this work, the ability of the novel species Aspergillus ibericus to discolor OMW and produce lipase was studied. An initial screening on plates containing an OMW-based agar medium and an emulsified olive oil/rhodamine-B agar medium was employed to select the strain A. ibericus MUM 03.49. Then, experiments in conical flasks with liquid OMW-based media showed that the fungus could growth on undiluted OMW, with a chemical oxygen demand (COD) of 97 ± 2 g/L, and to produce up to 2,927 ± 54 U/L of lipase. When pure OMW was used in the media, the maximum COD and color reduction achieved were 45 and 97 %, respectively. When OMW diluted to 10 % was used, A. ibericus was able to reduce phenolic and aromatic compounds by 37 and 39 %, respectively. Additionally, lipase production was found to be promoted by the addition of mineral nutrients. When the fermentations were scaled up to a 2-L bioreactor, A. ibericus produced up to 8,319 ± 33 U/L of lipase, and the maximum COD and color reduction were 57 and 24 %, respectively.
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Hanafi F, Belaoufi A, Mountadar M, Assobhei O. Augmentation of biodegradability of olive mill wastewater by electrochemical pre-treatment: effect on phytotoxicity and operating cost. JOURNAL OF HAZARDOUS MATERIALS 2011; 190:94-99. [PMID: 21435785 DOI: 10.1016/j.jhazmat.2011.02.087] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 02/28/2011] [Accepted: 02/28/2011] [Indexed: 05/30/2023]
Abstract
In order to exploit the fertilizer value of olive oil mill wastewaters (OMW), a novel method has been developed for its treatment. OMW effluents were pre-treated first by electrocoagulation using aluminum electrode and then by a biological process using a selected strain of Aspergillus niger van Tieghem. The effect of treatments was assessed through COD removal, reduction of total phenols, and decrease of phytotoxicity using durum wheat (Triticum durum) seeds. This sequential treatment scheme was capable of reducing concentration of organics, phenolics and phytotoxicity. The goal of this investigation was achieved, the phytotoxicity was completely removed and the germination index was 106% of OMW after sequential treatment. It can be concluded that the sequential process of OMW treatment might serve for the production of a fertilizer which is able to improve the growth of plants. These results are encouraging in the context of developing a low-budget technology for the effective management of OMW.
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Affiliation(s)
- F Hanafi
- Laboratoire de Biotechnologies marine et de l'environnement, Faculté des Sciences, Université Chouaib Doukkali, El Jadida, Morocco. hanafi
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Raghuwanshi S, Dutt K, Gupta P, Misra S, Saxena RK. Bacillus sphaericus: The highest bacterial tannase producer with potential for gallic acid synthesis. J Biosci Bioeng 2011; 111:635-40. [DOI: 10.1016/j.jbiosc.2011.02.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 02/11/2011] [Accepted: 02/16/2011] [Indexed: 11/30/2022]
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Ajila CM, Gassara F, Brar SK, Verma M, Tyagi RD, Valéro JR. Polyphenolic Antioxidant Mobilization in Apple Pomace by Different Methods of Solid-State Fermentation and Evaluation of Its Antioxidant Activity. FOOD BIOPROCESS TECH 2011. [DOI: 10.1007/s11947-011-0582-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abdel-Nabe M, Sherief A, EL-Tanash A. Tannin Biodegradation and Some Factors Affecting Tannase Production by Two Aspergillus sp. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/biotech.2011.149.158] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Dephenolization and decolorization of olive mill wastewater through sequential batch and co-culture applications. World J Microbiol Biotechnol 2010. [DOI: 10.1007/s11274-010-0433-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Aissam H, Penninckx MJ, Benlemlih M. Reduction of phenolics content and COD in olive oil mill wastewaters by indigenous yeasts and fungi. World J Microbiol Biotechnol 2007. [DOI: 10.1007/s11274-007-9348-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Decolourisation and dephenolisation potential of selected Aspergillus section Nigri strains – Aspergillus tubingensis in olive mill wastewater. World J Microbiol Biotechnol 2006. [DOI: 10.1007/s11274-006-9254-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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