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Abdulshaheed AA, Hanafiah MM, Nawaz R, Muslim SN. Evaluation of antibacterial, antifungal and antibiofilm activities of A. baumannii-derived tannase and gallic acid against uropathogenic microorganisms. Microb Pathog 2024; 187:106534. [PMID: 38184176 DOI: 10.1016/j.micpath.2024.106534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 01/08/2024]
Abstract
One of the most prevalent infectious diseases and a key driver of antibiotic prescriptions in pediatrics is urinary tract infection (UTI). Due to the emergence of more resistant uropathogenic bacterial and fungal strains, current treatments are no longer effective, necessitating the urgent development of novel antibacterial and antifungal drugs. In this study, the antifungal, antibacterial, and anti-biofilm capabilities of compounds, such as tannase (TN) and gallic acid (GA), which were produced from a novel natural source, Acinetobacter baumannii (AB11) bacteria, were assessed for the inactivation of uropathogenic microorganisms (UMs). Ammonium sulphate precipitation, ion exchange, high-performance liquid chromatography, and gel filtration were used to purify TN and GA that were isolated from A. baumannii. A 43.08 % pure TN with 1221.2 U/mg specific activity and 10.51 mg/mL GA was obtained. The antibacterial, antifungal and anti-biofilm activities of TN and GA were evaluated against UMs and compared to those of commercially available antibiotics including sulfamethoxazole (SXT), levofloxacin (LEV), ciprofloxacin (CIP), amikacin (Ak), and nitrofurantoin (F). The results showed that TN and GA were superior to commercial antibiotics in their ability to inactivate UMs and considerably reduced biofilms formation. Additionally, the GA emerges as the top substitute for currently available medications, demonstrating superior antibacterial and antibiofilm properties against all UMs evaluated in this study. The results of this investigation showed that A. baumannii-derived TN and GA could be utilized as an alternative medication to treat UTIs.
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Affiliation(s)
- Alaa A Abdulshaheed
- Department of Microbiology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia; Department of Biology, College of Science, University of Baghdad, 10071, Baghdad, Iraq
| | - Marlia Mohd Hanafiah
- Centre for Tropical Climate Change System, Institute of Climate Change, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia; Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
| | - Rab Nawaz
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Sahira Nsayef Muslim
- Department of Biology, College of Science, Al-Mustansiriyah University, Baghdad, 10422, Iraq
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2
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Wehaidy HR, Abdel-Naby MA, Kholif AMM, Elaaser M, Bahgaat WK, Wahab WAA. The catalytic and kinetic characterization of Bacillus subtilis MK775302 milk clotting enzyme: comparison with calf rennet as a coagulant in white soft cheese manufacture. J Genet Eng Biotechnol 2023; 21:61. [PMID: 37195386 DOI: 10.1186/s43141-023-00513-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 05/06/2023] [Indexed: 05/18/2023]
Abstract
BACKGROUND Calf rennet is considered the traditional source of milk clotting enzyme (MCE). However, increasing cheese consumption with decreasing the calf rennet supply had encouraged the quest for new rennet alternatives. The purpose of this study is to acquire more information about the catalytic and kinetic properties of partially purified Bacillus subtilis MK775302 MCE and to assess the role of enzyme in cheese manufacture. RESULTS B. subtilis MK775302 MCE was partially purified by 50% acetone precipitation with 5.6-fold purification. The optimum temperature and pH of the partially purified MCE were 70 °C and 5.0, respectively. The activation energy was calculated as 47.7 kJ/mol. The calculated Km and Vmax values were 36 mg/ml and 833 U/ml, respectively. The enzyme retained full activity at NaCl concentration of 2%. Compared to the commercial calf rennet, the ultra-filtrated white soft cheese produced from the partially purified B. subtilis MK775302 MCE exhibited higher total acidity, higher volatile fatty acids, and improved sensorial properties. CONCLUSIONS The partially purified MCE obtained in this study is a promising milk coagulant that can replace calf rennet at a commercial scale to produce better-quality cheese with improved texture and flavor.
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Affiliation(s)
- Hala R Wehaidy
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza, Egypt.
| | - Mohamed A Abdel-Naby
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza, Egypt
| | - Adel M M Kholif
- Dairy Sciences Department, National Research Centre, Dokki, Giza, Egypt
| | - Mostafa Elaaser
- Dairy Sciences Department, National Research Centre, Dokki, Giza, Egypt
| | - Wafaa K Bahgaat
- Dairy Sciences Department, National Research Centre, Dokki, Giza, Egypt
| | - Walaa A Abdel Wahab
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza, Egypt
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3
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The impact of polyphenolic compounds on the in vitro growth of oak-associated foliar endophytic and saprotrophic fungi. FUNGAL ECOL 2023. [DOI: 10.1016/j.funeco.2023.101226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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4
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Osipov DO, Matys VY, Nemashkalov VA, Rozhkova AM, Shashkov IA, Satrutdinov AD, Kondratyeva EG, Sinitsyn AP. Cloning, Isolation, and Properties of a New Recombinant Tannase from the Aspergillus niger Fungus. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s000368382209006x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Dong X, Wan Y, Chen Y, Wu X, Zhang Y, Deng M, Cai W, Wu X, Fu G. Molecular mechanism of high-production tannase of Aspergillus carbonarius NCUF M8 after ARTP mutagenesis: revealed by RNA-seq and molecular docking. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:4054-4064. [PMID: 34997579 DOI: 10.1002/jsfa.11754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/24/2021] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Tannase is an enzyme produced by microbial fermentation and is widely used in the food industry; however, the molecular mechanism of tannase production by Aspergillus has not yet been studied. This study was conducted to reveal the differences in Aspergillus carbonarius tannase enzymatic characterization, secondary structures and molecular mechanisms after treatment of the strain with atmospheric and room temperature plasma (ARTP). RESULTS The results showed that the specific activity of tannase was improved by ARTP treatment, and it showed higher thermostability and tolerance to metal ions and additives. The enzymatic characterization and molecular docking results indicated that tannase had a higher affinity and catalytic rate with tannic acid as a substrate after ARTP treatment. In addition, the docking results indicated that Aspergillus tannases may catalyze tannic acid by forming two hydrogen-bonding networks with neighboring residues. RNA-seq analysis indicated that changes in steroid biosynthesis, glutathione metabolism, glycerolipid metabolism, oxidative phosphorylation pathway and mitogen-activated protein kinase signaling pathways might be crucial reasons for the high production of tannase. CONCLUSION ARTP enhanced the yield and properties of A. carbonarius tannase by changing the enzyme structure and cell metabolism. This study provides a theoretical basis for elucidating the molecular mechanism underlying high production of Aspergillus tannases. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Xianxian Dong
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yin Wan
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yanru Chen
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xiaojiang Wu
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Yulong Zhang
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Mengfei Deng
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Wenqin Cai
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xiaodan Wu
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
| | - Guiming Fu
- State Key Laboratory of Food Science and Technology and College of Food Science and Technology, Nanchang University, Nanchang, China
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Pan H, Zhan J, Yang H, Wang C, Liu H, Zhou H, Zhou H, Lu X, Su X, Tian Y. Improving the Acid Resistance of Tannase TanBLp (AB379685) from Lactobacillus plantarum ATCC14917 T by Site-Specific Mutagenesis. Indian J Microbiol 2022; 62:96-102. [PMID: 35068609 PMCID: PMC8758840 DOI: 10.1007/s12088-021-00983-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/09/2021] [Indexed: 11/24/2022] Open
Abstract
Tannin acyl hydrolase referred commonly as tannase catalyzes the hydrolysis of the galloyl ester bond of tannin to release gallic acid. The tannase TanBLp which cloned from Lactobacillus plantarum ATCC14917T has high activity in the pH range (7.0-9.0) at 40 °C, it would be detrimental to the utilization at acidic environment. The catalytic sites and stability of TanBLp were analyzed using bioinformatics and site-specific mutagenesis. The results reiterated that the amino acid residues Ala164, Lys343, Glu357, Asp421 and His451 had played an important role in maintaining the activity. The optimum pH of mutants V75A, G77A, N94A, A164S and F243A were shifted from 8.0 to 6.0, and mutant V75A has the highest pH stability and activity at acidic conditions than other mutants, which was more suitable for industrial application to manufacture gallic acid. This study was of great significance to promote the industrialization and efficient utilization of tannase TanBLp.
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Affiliation(s)
- Hu Pan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China ,Institute of Agricultural Product Quality Standard and Testing Research, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
| | - Jingjing Zhan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Hui Yang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Chong Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Huhu Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Hui Zhou
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Haiyan Zhou
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Xiangyang Lu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Xiaojun Su
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
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Liu L, Guo J, Zhou XF, Li Z, Zhou HX, Song WQ. Characterization and Secretory Expression of a Thermostable Tannase from Aureobasidium melanogenum T9: Potential Candidate for Food and Agricultural Industries. Front Bioeng Biotechnol 2022; 9:769816. [PMID: 35211468 PMCID: PMC8861512 DOI: 10.3389/fbioe.2021.769816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/30/2021] [Indexed: 11/25/2022] Open
Abstract
Being a key industrial enzyme, tannase is extensively applied in various fields. Despite the characterizations of a large number of tannases, there are hardly a few tannases with exceptional thermostability. In this detailed study, a tannase-encoding gene named tanA was identified from Aureobasidium melanogenum T9 and heterologously expressed in Yarrowia lipolytica host of food grade. The purified tannase TanA with a molecular weight of above 63.0 kDa displayed a specific activity of 941.4 U/mg. Moreover, TanA showed optimum activity at 60°C and pH 6.0. Interestingly, TanA exhibited up to 61.3% activity after incubation for 12 h at 55°C, signifying its thermophilic property and distinguished thermostability. Additionally, TanA was a multifunctional tannase with high specific activities to catalyze the degradation of various gallic acid esters. Therefore, this study presents a novel tannase, TanA, with remarkable properties, posing as a potential candidate for food and agricultural processing.
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Affiliation(s)
- Lu Liu
- Department of Clinical Laboratory, Qingdao Municipal Hospital, Qingdao, China.,School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Jing Guo
- Department of Clinical Laboratory, Qingdao Municipal Hospital, Qingdao, China
| | - Xue-Feng Zhou
- Clinical Trial Research Center, The Affiliated Central Hospital of Qingdao University, Qingdao, China
| | - Ze Li
- College of Advanced Agricultural Sciences, Linyi Vocational University of Science and Technology, Linyi, China
| | - Hai-Xiang Zhou
- Department of Clinical Laboratory, Qingdao Municipal Hospital, Qingdao, China
| | - Wei-Qing Song
- Department of Clinical Laboratory, Qingdao Municipal Hospital, Qingdao, China
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de Sena AR, de Melo Lopes LM, Gouveia MJ, Gouveia MJ, de Mello MRF, Leite TCC, de Souza Lima GM, Moreira KA, de Assis SA. Tannin biodegradation by tannase from Serratia marcescens: optimization of production by response surface methodology and its partial characterization. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2020.1780212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Amanda Reges de Sena
- Microbiology Laboratory, Federal Institute of Education, Science and Technology of Pernambuco, Barreiros, Brazil
| | - Lúzia Morgana de Melo Lopes
- Microbiology Laboratory, Federal Institute of Education, Science and Technology of Pernambuco, Barreiros, Brazil
| | - Miquéas Jamesse Gouveia
- Microbiology Laboratory, Federal Institute of Education, Science and Technology of Pernambuco, Barreiros, Brazil
| | - Marcos Juliano Gouveia
- Microbiology Laboratory, Federal Institute of Education, Science and Technology of Pernambuco, Barreiros, Brazil
| | | | - Tonny Cley Campos Leite
- Microbiology Laboratory, Federal Institute of Education, Science and Technology of Pernambuco, Barreiros, Brazil
| | | | - Keila Aparecida Moreira
- Central Laboratory Center of Garanhuns, Laboratory of Biotechnology, Academic Unit of Garanhuns, Federal Rural, University of Pernambuco, Garanhuns, Brazil
| | - Sandra Aparecida de Assis
- Laboratory of Enzymology, Department of Health, State University of Feira de Santana, Feira de Santana, Brazil
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Wan Y, Fan H, Gao L, Li R, Xie M, Wu C, Chen L, Fu G. The Change Mechanism of Structural Characterization and Thermodynamic Properties of Tannase from Aspergillus niger NL112 Under High Temperature. Appl Biochem Biotechnol 2021; 193:2225-2244. [PMID: 33686629 DOI: 10.1007/s12010-021-03488-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 01/07/2021] [Indexed: 10/22/2022]
Abstract
Tannase from Aspergillus niger NL112 was purified 5.1-fold with a yield of 50.44% via ultrafiltration, DEAE-Sepharose Fast Flow column chromatography, and Sephadex G-100 column chromatography. The molecular weight of the purified tannase was estimated as 45 kDa. The optimum temperature and pH for its activity were 45 °C and 5.0, respectively. The results of circular dichroism, FT-IR (Fourier transform infrared) spectroscopy, and fluorescence spectra indicated that high temperature could lead to the change of tannase secondary and tertiary structures. Tannase had a greater affinity for tannic acid at 40 °C with a Km value of 2.12 mM and the greatest efficiency hydrolysis (Kcat/Km) at 45 °C. The rate of inactivation (k) increased with the increase of temperature and the half-life (t1/2) gradually decreased. It was found to be 1.0 of the temperature quotient (Q10) value for tannic acid hydrolysis by tannase. The thermodynamic parameters of the interaction system were calculated at various temperatures. The positive enthalpy (ΔH) values and decreasing ΔH values with the increase of temperature indicated that the hydrolysis of tannase was an endothermic process. Our results indicated that elevated temperature could change the tertiary structure of tannase and reduce its thermostability, which caused a gradual decrease of tannase activity with an increase in temperature.
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Affiliation(s)
- Yin Wan
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Haowei Fan
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Lin Gao
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Ruyi Li
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Mingyong Xie
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - ChouFei Wu
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, Huzhou University, Huzhou, Zhejiang, 313000, China
| | - Longyan Chen
- Alentic Microscience Inc., 1344 Summer St, Halifax, NS, B3H 0A8, Canada
| | - Guiming Fu
- State Key Laboratory of Food Science and Technology & College of Food Science and Technology, Nanchang University, Nanchang, 330047, Jiangxi, China.
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Wang J, Wang K, Lyu S, Huang J, Huang C, Xing Y, Wang Y, Xu Y, Li P, Hong J, Xi J, Si X, Ye H, Li Y. Genome-Wide Identification of Tannase Genes and Their Function of Wound Response and Astringent Substances Accumulation in Juglandaceae. FRONTIERS IN PLANT SCIENCE 2021; 12:664470. [PMID: 34079571 PMCID: PMC8165273 DOI: 10.3389/fpls.2021.664470] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/06/2021] [Indexed: 05/05/2023]
Abstract
Tannins are important polyphenol compounds with different component proportions in different plant species. The plants in the Juglandaceae are rich in tannins, including condensed tannins and hydrolyzable tannins. In this study, we identified seven tannase genes (TAs) responsible for the tannin metabolism from walnut, pecan, and Chinese hickory, and three nut tree species in the Juglandaceae, which were divided into two groups. The phylogenetic and sequence analysis showed that TA genes and neighboring clade genes (TA-like genes) had similar sequences compared with other carboxylesterase genes, which may be the origin of TA genes produced by tandem repeat. TA genes also indicated higher expressions in leaf than other tissues and were quickly up-regulated at 3 h after leaf injury. During the development of the seed coat, the expression of the synthesis-related gene GGTs and the hydrolase gene TAs was continuously decreased, resulting in the decrease of tannin content in the dry sample of the seed coat of Chinese hickory. However, due to the reduction in water content during the ripening process, the tannin content in fresh sample increased, so the astringent taste was obvious at the mature stage. In addition, the CcGGTs' expression was higher than CiGGTs in the initiation of development, but CcTAs continued to be down-regulated while CiTA2a and CiTA2b were up-regulated, which may bring about the significant differences in tannin content and astringent taste between Chinese hickory and pecan. These results suggested the crucial role of TAs in wound stress of leaves and astringent ingredient accumulation in seed coats of two nut tree species in the Juglandaceae.
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Abdel-Naby MA, El-Wafa WMA, Salem GEM. Molecular characterization, catalytic, kinetic and thermodynamic properties of protease produced by a mutant of Bacillus cereus-S6-3. Int J Biol Macromol 2020; 160:695-702. [PMID: 32485254 DOI: 10.1016/j.ijbiomac.2020.05.241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 01/19/2023]
Abstract
The proteolytic strain Bacillus cereus-S6-3 was subjected to mutagenic treatments viz. UV irradiations and methyl methane sulfonate (MMS). The obtained mutant strain, B. cereus-S6-3/UM90 showed 1.34 fold over the parent strain. Molecular characterization of proteases from the parent (PP/S6-3) and mutant (PM/UM90) strains indicated that they were consisted of two domains and binds a zinc ion and 4 calcium ions in the active site. Amino acid sequence alignment of PM/UM90 protease showed 19 amino acid residues were substituted compared to that of the wild-type enzyme. However, both proteases contained equal number of aromatic and hydrophobic amino acids. Protease from PM/UM90 showed an effective improvement in thermal properties in terms of reaction temperature, t1/2, the values of kd, activation energy (Ea), and decimal reduction time (D) within the temperature range from 60 to 80 °C. In addition, the kinetic and thermodynamic parameters for substrate hydrolysis (i.e., Km, Vmax, ΔH*, ΔG*, ΔS*, kcat, Vmax/Km, kcat/Km, ΔG*E-T and ΔG*E-S) showed a significant improvement of the catalytic efficiency for PM/UM90 protease. Furthermore, the correlation between thermodynamic properties and the patterns of amino acid substitution of wild-type enzyme to has been discussed.
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Affiliation(s)
- Mohamed A Abdel-Naby
- Department of Chemistry of Natural and Microbial Products, National Research Center, Cairo, Egypt.
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12
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Cavalcanti RMF, Martinez MLL, Oliveira WP, Guimarães LHS. Stabilization and application of spray-dried tannase from Aspergillus fumigatus CAS21 in the presence of different carriers. 3 Biotech 2020; 10:177. [PMID: 32226706 PMCID: PMC7096345 DOI: 10.1007/s13205-020-2164-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 03/07/2020] [Indexed: 01/21/2023] Open
Abstract
The Aspergillus fumigatus CAS21 tannase was spray dried with β-cyclodextrin, Capsul® starch, soybean meal, lactose, and maltodextrin as adjuvants. The moisture content and water activity of the products ranged from 5.6 to 11.5% and from 0.249 to 0.448, respectively. The maximal tannase activity was achieved at 40-60 ºC and pH 5.0-6.0 for the powders containing β-cyclodextrin and Capsul® starch, which was stable at 40 ºC and 40-60 ºC for 120 min, respectively. For all the dried products, tannase retained its activity of over 80% for 120 min at pH 5.0 and 6.0. Salts and solvents influenced the activity of the spray-dried tannase. The activity of the spray-dried tannase was maintained when preserved for 1 year at 4 ºC and 28 ºC. Spray-dried tannase reduced the content of tannins and polyphenolic compounds of leather effluent and sorghum flour and catalyzed the transesterification reaction. The spray drying process stabilized the tannase activity, highlighting the potential of dried products for biotechnological applications.
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Affiliation(s)
| | - Marcelo Luís Lombardi Martinez
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, USP, Av. do Café s/n, Ribeirão Preto, SP 14040-903 Brazil
| | - Wanderley Pereira Oliveira
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, USP, Av. do Café s/n, Ribeirão Preto, SP 14040-903 Brazil
| | - Luís Henrique Souza Guimarães
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto – USP, Avenida Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP 14040-901 Brazil
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Thermostable Tannase from Aspergillus Niger and Its Application in the Enzymatic Extraction of Green Tea. Molecules 2020; 25:molecules25040952. [PMID: 32093395 PMCID: PMC7070470 DOI: 10.3390/molecules25040952] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 12/11/2022] Open
Abstract
Tannase is widely used in tea beverage processing because of its ability to catalyze the hydrolysis of hydrolysable tannins or gallic acid esters and effectively improve the quality of tea extracts through enzymatic extraction. A new thermophilic tannase was cloned from Aspergillus niger FJ0118 and characterized. The tannase exhibited an optimal reaction temperature of 80 °C and retained 89.6% of the initial activity after incubation at 60 °C for 2 h. The enzymatic extraction of green tea at high temperature (70 °C) for a short time (40 min) was devised on the basis of the superior thermal stability of tannase. The enzymatic reaction significantly increased the total polyphenol content of green tea extract from 137 g·kg−1 to 291 g·kg−1. The enzymatic reaction effectively degraded the ester catechins into non-ester catechins compared with the water extraction method. Results suggested that the thermally stable tannase exhibited potential applications in the enzymatic extraction of green tea beverage.
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14
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Enhancing treatability of tannery wastewater by integrated process of electrocoagulation and fungal via using RSM in an economic perspective. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.06.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Partial purification and characterization of a thermostable mushroom tannase induced during solid state fermentation of Toxicodendron vernicifluum stem bark by Fomitella fraxinea. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Aharwar A, Parihar DK. Talaromyces verruculosus tannase production, characterization and application in fruit juices detannification. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.01.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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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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de Lima JS, Cabrera MP, Casazza AA, da Silva MF, Perego P, de Carvalho LB, Converti A. Immobilization of Aspergillus ficuum tannase in calcium alginate beads and its application in the treatment of boldo (Peumus boldus) tea. Int J Biol Macromol 2018; 118:1989-1994. [DOI: 10.1016/j.ijbiomac.2018.07.084] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 12/30/2022]
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Cavalcanti RMF, Jorge JA, Guimarães LHS. Characterization of Aspergillus fumigatus CAS-21 tannase with potential for propyl gallate synthesis and treatment of tannery effluent from leather industry. 3 Biotech 2018; 8:270. [PMID: 29868308 PMCID: PMC5970104 DOI: 10.1007/s13205-018-1294-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 05/20/2018] [Indexed: 10/16/2022] Open
Abstract
One of the tannase isoforms produced by the fungus Aspergillus fumigatus CAS-21 under submerged fermentation (SbmF) was purified 4.9-fold with a 10.2% recovery. The glycoprotein (39.1% carbohydrate content) showed an estimated molecular mass of 60 kDa. Optimum temperature and pH for its activity were 30-40 °C and 5.0, respectively. It showed a half-life (t50) of 60 min at 45 and 50 °C, and it was stable at pH 5.0 and 6.0 for 3 h. The tannase activity was insensitive to most salts used, but it reduced in the presence of Fe2(SO4)3 and FeCl3. On contrary, in presence of SDS, Triton-X100, and urea the enzyme activity increased. The Km value indicated high affinity for propyl gallate (3.61 mmol L-1) when compared with tannic acid (6.38 mmol L-1) and methyl gallate (6.28 mmol L-1), but the best Kcat (362.24 s-1) and Kcat/Km (56.78 s-1 mmol-1 L) were obtained for tannic acid. The purified tannase reduced 89 and 25% of tannin content of the leather tannery effluent generated by manual and mechanical processing, respectively, after 2-h treatment. The total phenolic content was also reduced. Additionally, the enzyme produced propyl gallate, indicating its ability to do the transesterification reaction. Thus, A. fumigatus CAS-21 tannase presents interesting properties, especially the ability to degrade tannery effluent, highlighting its potential in biotechnological applications.
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Affiliation(s)
- Rayza Morganna Farias Cavalcanti
- Instituto de Química de Araraquara- UNESP, Avenida Professor Mário Degni s/nº, Quitandinha, Araraquara, São Paulo 14800-900 Brazil
| | - João Atílio Jorge
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, USP, Avenida Bandeirantes 3900, Ribeirão Preto, São Paulo 14040-901 Brazil
| | - Luis Henrique Souza Guimarães
- Instituto de Química de Araraquara- UNESP, Avenida Professor Mário Degni s/nº, Quitandinha, Araraquara, São Paulo 14800-900 Brazil
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, USP, Avenida Bandeirantes 3900, Ribeirão Preto, São Paulo 14040-901 Brazil
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