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Heidarrezaei M, Mauriello G, Shokravi H, Lau WJ, Ismail AF. Delivery of Probiotic-Loaded Microcapsules in the Gastrointestinal Tract: A Review. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10311-6. [PMID: 38907825 DOI: 10.1007/s12602-024-10311-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2024] [Indexed: 06/24/2024]
Abstract
Probiotics are live microorganisms that inhabit the gastrointestinal tract and confer health benefits to consumers. However, a sufficient number of viable probiotic cells must be delivered to the specific site of interest in the gastrointestinal tract to exert these benefits. Enhanced viability and tolerance to sublethal gastrointestinal stress can be achieved using appropriate coating materials and food matrices for orally consumed probiotics. The release mechanism and interaction of probiotic microcapsules with the gastrointestinal tract have been minimally explored in the literature to date. To the authors' knowledge, no review has been published to discuss the nature of release and the challenges in the targeted delivery of probiotics. This review addresses gastrointestinal-related complications in the formulation of targeted delivery and controlled release of probiotic strains. It investigates the impacts of environmental stresses during the transition stage and delivery to the target region in the gastrointestinal tract. The influence of factors such as pH levels, enzymatic degradation, and redox conditions on the release mechanisms of probiotics is presented. Finally, the available methods to evaluate the efficiency of a probiotic delivery system, including in vitro and in vivo, are reviewed and assessed. The paper concludes with a discussion highlighting the emerging technologies in the field and emphasising key areas in need of future study.
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Affiliation(s)
- Mahshid Heidarrezaei
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia.
- Institute of Bioproduct Development (IBD), Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia.
| | - Gianluigi Mauriello
- Department of Agricultural Science, University of Naples Federico II, 80049, Naples, Italy
| | - Hoofar Shokravi
- Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
| | - Woei Jye Lau
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
| | - Ahmad Fauzi Ismail
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia
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2
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Chen Z, Chen J, Ni D, Xu W, Zhang W, Mu W. Microbial dextran-hydrolyzing enzyme: Properties, structural features, and versatile applications. Food Chem 2024; 437:137951. [PMID: 37951078 DOI: 10.1016/j.foodchem.2023.137951] [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: 06/09/2023] [Revised: 10/28/2023] [Accepted: 11/06/2023] [Indexed: 11/13/2023]
Abstract
Dextran, an α-glucan mainly composed of (α1 → 6) linkages, has been widely applied in the food, cosmetic, and medicine industries. Dextranase can hydrolyze dextran to synthesize oligodextrans, which show prominent properties and promising applications in the food industry. Dextranases are widely distributed in bacteria, yeasts, and fungus, and classified into glycoside hydrolase (GH) 13, 15, 31, 49, and 66 families according to their sequence similarity, structural features, and reaction types. Dextranase, as a dextran-hydrolyzing enzyme, displays great application potential in the sugar-making, oral health care, medicine, and biotechnology industries. Here we mainly focused on presenting the enzymatic properties, structural features, and versatile (potential) applications of dextranase. To date, seven crystal structures of dextranases from GH 13, 15, 31, 49, and 66 families have been successfully solved. However, their molecular mechanisms for hydrolyzing dextran, especially on the size determinants of the hydrolysates, remain largely unknown. Additionally, the classification, microbial distribution, and immobilization technology of dextranase were also discussed in detail. This review discussed dextranase from different aspects with the ambition to present how they constitute the groundwork for promising future developments.
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Affiliation(s)
- Ziwei Chen
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, China
| | - Jiajun Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Dawei Ni
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China
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3
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Wang B, Wu Y, Li Q, Wu X, Kang X, Zhang L, Lyu M, Wang S. The Screening and Identification of a Dextranase-Secreting Marine Actinmycete Saccharomonospora sp. K1 and Study of Its Enzymatic Characteristics. Mar Drugs 2024; 22:69. [PMID: 38393040 PMCID: PMC10890608 DOI: 10.3390/md22020069] [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: 01/09/2024] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
In this study, an actinomycete was isolated from sea mud. The strain K1 was identified as Saccharomonospora sp. by 16S rDNA. The optimal enzyme production temperature, initial pH, time, and concentration of the inducer of this actinomycete strain K1 were 37 °C, pH 8.5, 72 h, and 2% dextran T20 of medium, respectively. Dextranase from strain K1 exhibited maximum activity at 8.5 pH and 50 °C. The molecular weight of the enzyme was <10 kDa. The metal ions Sr2+ and K+ enhanced its activity, whereas Fe3+ and Co2+ had an opposite effect. In addition, high-performance liquid chromatography showed that dextran was mainly hydrolyzed to isomaltoheptose and isomaltopentaose. Also, it could effectively remove biofilms of Streptococcus mutans. Furthermore, it could be used to prepare porous sweet potato starch. This is the first time a dextranase-producing actinomycete strain was screened from marine samples.
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Affiliation(s)
- Boyan Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
| | - Yizhuo Wu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Qiang Li
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Xudong Wu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Xinxin Kang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Lei Zhang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Mingsheng Lyu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Shujun Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China; (B.W.); (Y.W.); (Q.L.); (X.W.); (L.Z.); (M.L.)
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
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4
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Mir B, Yang J, Li Z, Wang L, Ali V, Hu X, Zhang H. Review on recent advances in the properties, production and applications of microbial dextranases. World J Microbiol Biotechnol 2023; 39:242. [PMID: 37400664 DOI: 10.1007/s11274-023-03691-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 06/28/2023] [Indexed: 07/05/2023]
Abstract
Dextranase is a type of hydrolase that is responsible for catalyzing the breakdown of high-molecular-weight dextran into low-molecular-weight polysaccharides. This process is called dextranolysis. A select group of bacteria and fungi, including yeasts and likely certain complex eukaryotes, produce dextranase enzymes as extracellular enzymes that are released into the environment. These enzymes join dextran's α-1,6 glycosidic bonds to make glucose, exodextranases, or isomalto-oligosaccharides (endodextranases). Dextranase is an enzyme that has a wide variety of applications, some of which include the sugar business, the production of human plasma replacements, the treatment of dental plaque and its protection, and the creation of human plasma replacements. Because of this, the quantity of studies carried out on worldwide has steadily increased over the course of the past couple of decades. The major focus of this study is on the most current advancements in the production, administration, and properties of microbial dextranases. This will be done throughout the entirety of the review.
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Affiliation(s)
- Baiza Mir
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Jingwen Yang
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
| | - Zhiwei Li
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Lei Wang
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Vilayat Ali
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Xueqin Hu
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Hongbin Zhang
- College of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
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5
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Hu X, Xia B, Ru W, Zhang Y, Yang J, Zhang H. Research progress on structure and catalytic mechanism of dextranase. EFOOD 2023. [DOI: 10.1002/efd2.60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Xue‐Qin Hu
- School of Food and Biological Engineering Hefei University of Technology Hefei China
| | - Bing‐Bing Xia
- School of Food and Biological Engineering Hefei University of Technology Hefei China
| | - Wei‐Juan Ru
- School of Food and Biological Engineering Hefei University of Technology Hefei China
| | - Yu‐Xin Zhang
- School of Food and Biological Engineering Hefei University of Technology Hefei China
| | - Jing‐Wen Yang
- School of Food and Biological Engineering Hefei University of Technology Hefei China
| | - Hong‐Bin Zhang
- School of Food and Biological Engineering Hefei University of Technology Hefei China
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6
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Ru WJ, Xia BB, Zhang YX, Yang JW, Zhang HB, Hu XQ. Development of thermostable dextranase from Streptococcus mutans (SmdexTM) through in silico design employing B-factor and Cartesian-ΔΔG. J Biotechnol 2022; 360:142-151. [PMID: 36343755 DOI: 10.1016/j.jbiotec.2022.11.003] [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: 08/11/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
The thermal stability of enzymes dramatically limits their application in the industrial field. Based on the crystal structure, we conducted a semi-rational design according to the B-factor and free energy values to improve the stability of dextranase from Streptococcus mutans (SmdexTM). The B-factor values of Asn102, Asn503, Asp501 and Asp500 were the highest predicted by B-FITTER. Then Rosetta was used to simulate the saturation mutations of Asn102, Asn503, Asp501 and Asp500. The mutated amino acid was designed according to the change of acG. The results showed that the thermal stability of N102P, N102C, D500G, and D500T was improved, and the half-lives of N102P/D500G and N102P/D500T at 45 °C were increased to 3.14 times and 2.44 times, respectively. Analyzing the interaction of amino acids by using Discovery Studio 4.5, it was observed that the thermal stability of dextranase was improved due to the increase in hydrophobicity and the number of hydrogen bonds of the mutant enzyme. The catalytic efficiency of N102P/D500T was increased. Compared with the hydrolyzed products of SmdexTM, the mutant enzymes do not change the specificity of hydrolysates.
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Affiliation(s)
- Wei-Juan Ru
- School of Food and Biological Engineering, Hefei University of Technology, Anhui, China
| | - Bing-Bing Xia
- School of Food and Biological Engineering, Hefei University of Technology, Anhui, China
| | - Yu-Xin Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Anhui, China
| | - Jing-Wen Yang
- School of Food and Biological Engineering, Hefei University of Technology, Anhui, China
| | - Hong-Bin Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Anhui, China.
| | - Xue-Qin Hu
- School of Food and Biological Engineering, Hefei University of Technology, Anhui, China.
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7
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Zhang Z, Wang S, Wei L, Liao Y, Li D, Wu G, Wang W. Efficient removal of dextran in sugar juice by immobilized α-dextranase from Chaetomium gracile. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2022. [DOI: 10.1515/ijfe-2022-0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Dextran problem restricts the development of the sugar industry. Although the enzymatic treatment based on α-dextranase from Chaetomium gracile (α-dextranase (CG)) has been effective in solving this issue, the lack of immobilization products hinder its industrial applications. This research described a novel and suitable method to immobilize α-dextranase (CG). The purified α-dextranase (CG) was immobilized via cross-linking using modified chitosan as carriers. In addition, this study used a deep eutectic solvent that greatly improved the enzymatic properties of immobilized α-dextranase (CG). α-dextranase (CG) was immobilized by adding deep eutectic solvent (DES-IM-α-dextranase (CG)) showed better temperature tolerance and storage properties than free and ordinary immobilized counterparts. It can eliminate dextran by 59.71% in mixed sugarcane juice and 38.71% in clarified sugarcane juice. The achieved results were considerably better than those obtained using free and other immobilized enzymes. Altogether, these findings confirmed that DES-IM-α-dextranase (CG) displayed great potential in solving the dextran problem.
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Affiliation(s)
- Zedong Zhang
- College of Food Science and Engineering , Jiangxi Agricultural University , Nanchang , 330045 , P. R. China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi , Jiangxi Agricultural University , Nanchang 330045 , China
| | - Sheng Wang
- College of Food Science and Engineering , Jiangxi Agricultural University , Nanchang , 330045 , P. R. China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi , Jiangxi Agricultural University , Nanchang 330045 , China
| | - Longhan Wei
- College of Food Science and Engineering , Jiangxi Agricultural University , Nanchang , 330045 , P. R. China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi , Jiangxi Agricultural University , Nanchang 330045 , China
| | - Yanfang Liao
- College of Food Science and Engineering , Jiangxi Agricultural University , Nanchang , 330045 , P. R. China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi , Jiangxi Agricultural University , Nanchang 330045 , China
| | - Dongming Li
- College of Food Science and Engineering , Jiangxi Agricultural University , Nanchang , 330045 , P. R. China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi , Jiangxi Agricultural University , Nanchang 330045 , China
| | - Guoqiang Wu
- College of Food Science and Engineering , Jiangxi Agricultural University , Nanchang , 330045 , P. R. China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi , Jiangxi Agricultural University , Nanchang 330045 , China
| | - Wenjun Wang
- College of Food Science and Engineering , Jiangxi Agricultural University , Nanchang , 330045 , P. R. China
- Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi , Jiangxi Agricultural University , Nanchang 330045 , China
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8
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Barzkar N, Babich O, Das R, Sukhikh S, Tamadoni Jahromi S, Sohail M. Marine Bacterial Dextranases: Fundamentals and Applications. Molecules 2022; 27:molecules27175533. [PMID: 36080300 PMCID: PMC9458216 DOI: 10.3390/molecules27175533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/18/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Dextran, a renewable hydrophilic polysaccharide, is nontoxic, highly stable but intrinsically biodegradable. The α-1, 6 glycosidic bonds in dextran are attacked by dextranase (E.C. 3.2.1.11) which is an inducible enzyme. Dextranase finds many applications such as, in sugar industry, in the production of human plasma substitutes, and for the treatment and prevention of dental plaque. Currently, dextranases are obtained from terrestrial fungi which have longer duration for production but not very tolerant to environmental conditions and have safety concerns. Marine bacteria have been proposed as an alternative source of these enzymes and can provide prospects to overcome these issues. Indeed, marine bacterial dextranases are reportedly more effective and suitable for dental caries prevention and treatment. Here, we focused on properties of dextran, properties of dextran—hydrolyzing enzymes, particularly from marine sources and the biochemical features of these enzymes. Lastly the potential use of these marine bacterial dextranase to remove dental plaque has been discussed. The review covers dextranase-producing bacteria isolated from shrimp, fish, algae, sea slit, and sea water, as well as from macro- and micro fungi and other microorganisms. It is common knowledge that dextranase is used in the sugar industry; produced as a result of hydrolysis by dextranase and have prebiotic properties which influence the consistency and texture of food products. In medicine, dextranases are used to make blood substitutes. In addition, dextranase is used to produce low molecular weight dextran and cytotoxic dextran. Furthermore, dextranase is used to enhance antibiotic activity in endocarditis. It has been established that dextranase from marine bacteria is the most preferable for removing plaque, as it has a high enzymatic activity. This study lays the groundwork for the future design and development of different oral care products, based on enzymes derived from marine bacteria.
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Affiliation(s)
- Noora Barzkar
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, Bandar Abbas 74576, Iran
- Correspondence: or
| | - Olga Babich
- Institute of Living Systems, Immanuel Kant Baltic Federal University, 236016 Kaliningrad, Russia
| | - Rakesh Das
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), 1432 Ås, Norway
| | - Stanislav Sukhikh
- Institute of Living Systems, Immanuel Kant Baltic Federal University, 236016 Kaliningrad, Russia
| | - Saeid Tamadoni Jahromi
- Persian Gulf and Oman Sea Ecology Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas 14578, Iran
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan
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9
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Wang X, Zhang Y, Li M, Qin Q, Xie T. Purification and characterization of dextranase from Penicillium cyclopium CICC-4022 and its degradation of dextran. Int J Biol Macromol 2022; 204:627-634. [PMID: 35124020 DOI: 10.1016/j.ijbiomac.2022.01.196] [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: 05/23/2021] [Revised: 01/19/2022] [Accepted: 01/30/2022] [Indexed: 11/05/2022]
Abstract
A dextranase was purified from Penicillium cyclopium CICC-4022 by ammonium sulfate fractionation and secondary tangential flow filtration, and the enzymatic properties were studied. The purified dextranase was used to regulated the molecular mass and homogeneity of dextran. Weight-average molecular mass (Mw) and polydispersity index (Mw/Mn) of dextran were measured by gel permeation chromatography (GPC) coupled with a triple-detector array (GPC-TDA), which is composed of a multiple-angle light scattering, a viscometer, and a refractive-index detector. The dextranase was purified by 2.24-fold, the recovery rate was 45.84%, the specific activity was 1442.05 U/mg, and the Mw was 77 KDa. Dextranase showed maximum activity at pH of 5.0 and 55 °C. Na+, K+ and NH4+ can effectively improve the dextranase activity, Cu2+ and Pb2+ can strongly inhibit the dextranase activity. Dextranase specifically degraded the α-1,6 glycosidic bonds of dextran. By controlling the dextranase activity, substrate concentration, and time, the specific Mw dextran with good homogeneity was obtained. The structure of dextran was not altered before or after dextranase hydrolysis, but its conformation changed from a spherical chain to a compliant chain. When the Mw of the dextran product was about 5 KDa, it was a compact spherical chain conformation in solution.
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Affiliation(s)
- Xuejiao Wang
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China
| | - Yirui Zhang
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China
| | - Mei Li
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China; Key Laboratory of Chemical and Biological Transforming Process of Guangxi Higher Education Institutes, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China.
| | - Qin Qin
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China; Key Laboratory of Chemical and Biological Transforming Process of Guangxi Higher Education Institutes, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China
| | - Tao Xie
- Guangxi Key Laboratory of Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China; Key Laboratory of Chemical and Biological Transforming Process of Guangxi Higher Education Institutes, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, Guangxi, PR China.
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10
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Zhang T, Sun Y, Ma Z, Zhang J, Lv B, Li C. Developing iterative and quantified transgenic manipulations of non-conventional filamentous fungus Talaromyces pinophilus Li-93. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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11
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Ning Z, Dong D, Tian X, Zu H, Tian X, Lyu M, Wang S. Alkalic dextranase produced by marine bacterium Cellulosimicrobium sp. PX02 and its application. J Basic Microbiol 2021; 61:1002-1015. [PMID: 34528722 DOI: 10.1002/jobm.202100310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/24/2021] [Accepted: 09/01/2021] [Indexed: 11/08/2022]
Abstract
The enzyme dextranase is widely used in the sugar and food industries, as well as in the medical field. Most land-derived dextranases are produced by fungi and have the disadvantages of long production cycles, low tolerance to environmental conditions, and low safety. The use of marine bacteria to produce dextranases may overcome these problems. In this study, a dextranase-producing bacterium was isolated from the Rizhao seacoast of Shandong, China. The bacterium, denoted as PX02, was identified as Cellulosimicrobium sp. and its growing conditions and the production and properties of its dextranase were investigated. The dextranase had a molecular weight of approximately 40 kDa, maximum activity at 40°C and pH 7.5, with a stability range of up to 45°C and pH 7.0-9.0. High-performance liquid chromatography showed that the dextranase hydrolyzed dextranT20 to isomaltotriose, maltopentaose, and isomaltooligosaccharides. Hydrolysis by dextranase produced excellent antioxidant effects, suggesting its potential use in the health food industry. Investigation of the action of the dextranase on Streptococcus mutans biofilm and scanning electron microscopy showed that it to be effective both for removing and inhibiting the formation of biofilms, suggesting its potential application in the dental industry.
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Affiliation(s)
- Zhe Ning
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Dongxue Dong
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Xiaopeng Tian
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Hangtian Zu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Xueqing Tian
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Mingsheng Lyu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Shujun Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
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12
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Martínez D, Menéndez C, Chacón O, Fuentes AD, Borges D, Sobrino A, Ramírez R, Pérez ER, Hernández L. Removal of bacterial dextran in sugarcane juice by Talaromyces minioluteus dextranase expressed constitutively in Pichia pastoris. J Biotechnol 2021; 333:10-20. [PMID: 33901619 DOI: 10.1016/j.jbiotec.2021.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 04/15/2021] [Accepted: 04/18/2021] [Indexed: 11/27/2022]
Abstract
A gene construct encoding the mature region of Talaromyces minioluteus dextranase (EC 3.2.1.11) fused to the Saccharomyces cerevisiae SUC2 signal sequence was expressed in Pichia pastoris under the constitutive glyceraldehyde 3-phosphate dehydrogenase promoter (pGAP). The increase of the transgene dosage from one to two and four copies enhanced proportionally the extracellular yield of the recombinant enzyme (r-TmDEX) without inhibiting cell growth. The volumetric productivity of the four-copy clone in fed batch fermentation (51 h) using molasses as carbon source was 1706 U/L/h. The secreted N-glycosylated r-TmDEX was optimally active at pH 4.5-5.5 and temperature 50-60 °C. The addition of sucrose (600 g/L) as a stabilizer retained intact the r-TmDEX activity after 1-h incubation at 50-60 °C and pH 5.5. Bacterial dextran in deteriorated sugarcane juice was completely removed by applying a crude preparation of secreted r-TmDEX. The high yield of r-TmDEX in methanol-free cultures and the low cost of the fed batch fermentation make the P. pastoris pGAP-based expression system appropriate for the large scale production of dextranase and its use for dextran removal at sugar mills.
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Affiliation(s)
- Duniesky Martínez
- Laboratorio de Fermentaciones, Centro de Ingeniería Genética y Biotecnología de Sancti Spíritus (CIGBSS), Circunvalante Norte S/N, Olivos 3, Apartado Postal 83, Sancti Spíritus, 60200, Cuba
| | - Carmen Menéndez
- Grupo Tecnología de Enzimas, Dirección de Investigaciones Agropecuarias, Centro de Ingeniería Genética y Biotecnología (CIGB), Ave 31 entre 158 y 190, Apartado Postal 6162, Habana, 10600, Cuba
| | - Osmani Chacón
- Grupo Tecnología de Enzimas, Dirección de Investigaciones Agropecuarias, Centro de Ingeniería Genética y Biotecnología (CIGB), Ave 31 entre 158 y 190, Apartado Postal 6162, Habana, 10600, Cuba
| | - Alejandro D Fuentes
- Grupo Virología de Plantas, Dirección de Investigaciones Agropecuarias, Centro de Ingeniería Genética y Biotecnología (CIGB), Ave 31 entre 158 y 190, Apartado Postal 6162, Habana, 10600, Cuba
| | - Dalia Borges
- Laboratorio de Fermentaciones, Centro de Ingeniería Genética y Biotecnología de Sancti Spíritus (CIGBSS), Circunvalante Norte S/N, Olivos 3, Apartado Postal 83, Sancti Spíritus, 60200, Cuba
| | - Alina Sobrino
- Laboratorio de Fermentaciones, Centro de Ingeniería Genética y Biotecnología de Sancti Spíritus (CIGBSS), Circunvalante Norte S/N, Olivos 3, Apartado Postal 83, Sancti Spíritus, 60200, Cuba
| | - Ricardo Ramírez
- Grupo Tecnología de Enzimas, Dirección de Investigaciones Agropecuarias, Centro de Ingeniería Genética y Biotecnología (CIGB), Ave 31 entre 158 y 190, Apartado Postal 6162, Habana, 10600, Cuba
| | - Enrique R Pérez
- Laboratorio de Fermentaciones, Centro de Ingeniería Genética y Biotecnología de Sancti Spíritus (CIGBSS), Circunvalante Norte S/N, Olivos 3, Apartado Postal 83, Sancti Spíritus, 60200, Cuba
| | - Lázaro Hernández
- Grupo Tecnología de Enzimas, Dirección de Investigaciones Agropecuarias, Centro de Ingeniería Genética y Biotecnología (CIGB), Ave 31 entre 158 y 190, Apartado Postal 6162, Habana, 10600, Cuba.
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13
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Dong D, Wang X, Deng T, Ning Z, Tian X, Zu H, Ding Y, Wang C, Wang S, Lyu M. A novel dextranase gene from the marine bacterium Bacillus aquimaris S5 and its expression and characteristics. FEMS Microbiol Lett 2021; 368:6105217. [PMID: 33476380 DOI: 10.1093/femsle/fnab007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/18/2021] [Indexed: 01/18/2023] Open
Abstract
Dextranase specifically hydrolyzes dextran and is used to produce functional isomalto-saccharide prebiotics. Moreover, dextranase is used as an additive in mouthwash to remove dental plaque. We cloned and expressed the dextranase gene of the marine bacterium Bacillus aquimaris S5. The length of the BaDex gene was 1788 bp, encoding 573 amino acids. Using bioinformatics to predict and analyze the amino acid sequence of BaDex, we found the isoelectric point and instability coefficient to be 4.55 and 29.22, respectively. The average hydrophilicity (GRAVY) was -0.662. The secondary structure of BaDex consisted of 145 alpha helices, accounting for 25.31% of the protein; 126 extended strands, accounting for 21.99%; and 282 random coils, accounting for 49.21%. The 3D structure of the BaDex protein was predicted and simulated using SWISS-MODEL, and BaDex was classified as a Glycoside Hydrolase Family 66 protein. The optimal temperature and pH for BaDex activity were 40°C and 6.0, respectively. The hydrolysates had excellent antioxidant activity, and 8 U/mL of BaDex could remove 80% of dental plaque in MBRC experiment. This recombinant protein thus has great promise for applications in the food and pharmaceutical industries.
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Affiliation(s)
- Dongxue Dong
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Xuelian Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Tian Deng
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Zhe Ning
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Xiaopeng Tian
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Hangtian Zu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Yanshuai Ding
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Cang Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China
| | - Shujun Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Collaborative Innovation Center of Modern Biological Manufacturing, Anhui University, 111 Jiulong Road, Hefei 230039, China
| | - Mingsheng Lyu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Lianyungang 222005, PR China.,Collaborative Innovation Center of Modern Biological Manufacturing, Anhui University, 111 Jiulong Road, Hefei 230039, China
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14
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Zhao J, Wang L, Wei X, Li K, Liu J. Food-Grade Expression and Characterization of a Dextranase from Chaetomium gracile Suitable for Sugarcane Juice Clarification. Chem Biodivers 2020; 18:e2000797. [PMID: 33245200 DOI: 10.1002/cbdv.202000797] [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: 09/24/2020] [Accepted: 11/26/2020] [Indexed: 11/09/2022]
Abstract
The microbial production of dextranase using cheap carbon sources is beneficial to solve the economic loss caused by the accumulation of dextran in syrup. A food-grade microbial cell factory was constructed by introducing the dextranase encoding gene DEX from Chaetomium gracile to the chromosome of Bacillus subtilis, and the antibiotic resistance marker gene was subsequently deleted via the Cre/loxP strategy. The dual-promoter system with a sequentially arranged constitutive P43 promoter resulted in an 85 % increase in DEX expression. Under the optimal fermentation conditions of 10 g/L maltose, 15 g/L casein, 1 g/L Na2 HPO4 , 1 g/L FeSO4 and 8 g/L NaCl, DEX activity was increased from 2.625 to 64.34 U/mL. Recombinant DEX was purified 5.98-fold with a recovery ratio of 26.67 % and specific activity of 3935.02 U/mg. Enzyme activity was optimal at 55 °C and pH 5.0 and remained 80.34 % and 71.36 % of the initial activity at 55 °C and pH 4.0 after 60 min, respectively. The enzyme possessed high activity in the presence of Co2+ , while Ag+ showed the strongest inhibition ability. The optimal substrate was 20 g/L dextran T-2000. The findings could facilitate the low-cost, large-scale production of food-grade DEX for use in the sugar industry.
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Affiliation(s)
- Jingyi Zhao
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Leyi Wang
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Xin Wei
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Kai Li
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.,Sugar Industry Collaborative Innovation Center, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Jidong Liu
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.,Sugar Industry Collaborative Innovation Center, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
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15
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Purification, Characterization, and Biocatalytic and Antibiofilm Activity of a Novel Dextranase from Talaromyces sp. Int J Microbiol 2020. [DOI: 10.1155/2020/9198048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Dextranase is a useful enzyme that catalyzes the degradation of dextran to low-molecular-weight fractions, which have many critical commercial and clinical applications. Endophytic fungi represent a source of both high heat-stable and pH-stable enzymes. In this study, from Delonix regia bark by plate assay, out of 12 isolated fungal strains, hyaline zones were detected in only one strain. By using the standard ITS rDNA sequencing analysis, the isolated strain was identified as Talaromyces sp. In the case of carbon source, in a medium containing 1% dextran T2000 as the sole carbon source, the maximum dextranase activity reached approximately 120 U/ml after incubation of 2 days where the optimum pH was 7.4. Peptone addition to the production medium as a sole nitrogen source was accompanied by a significant increase in the dextranase production. Similarly, some metal ions, such as Fe2+ and Zn2+, increased significantly enzyme production. However, there was no significant difference resulting from the addition of Cu2+. The crude dextranase was purified by ammonium sulfate fractionation, followed by Sephadex G100 chromatography with 28-fold purification. The produced dextranase was 45 kDa with an optimum activity at 37°C and a pH of 7. Moreover, the presence of MgSO4, FeSO4, and NH4SO4 increased the purified dextranase activity; however, SDS and EDTA decreased it. Interestingly, the produced dextranase expressed remarkable pH stability, temperature stability, and biofilm inhibition activity, reducing old-established biofilm by 86% and biofilm formation by 6%.
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16
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Zhao B, Du R, Wang J, Xu M, Han Y, Han X, Zhou Z. Purification and biochemical characterization of a novel glucansucrase from Leuconostoc citreum B-2. Biotechnol Lett 2020; 42:1535-1545. [DOI: 10.1007/s10529-020-02881-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/31/2020] [Indexed: 01/02/2023]
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17
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Lai X, Liu X, Liu X, Deng T, Feng Y, Tian X, Lyu M, Wang AS. The Marine Catenovulum agarivorans MNH15 and Dextranase: Removing Dental Plaque. Mar Drugs 2019; 17:md17100592. [PMID: 31635432 PMCID: PMC6835279 DOI: 10.3390/md17100592] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/15/2019] [Accepted: 10/16/2019] [Indexed: 12/03/2022] Open
Abstract
Dextranase, a hydrolase that specifically hydrolyzes α-1,6-glucosidic bonds, has been used in the pharmaceutical, food, and biotechnology industries. In this study, the strain of Catenovulum agarivorans MNH15 was screened from marine samples. When the temperature, initial pH, NaCl concentration, and inducer concentration were 30 °C, 8.0, 5 g/L, and 8 g/L, respectively, it yielded more dextranase. The molecular weight of the dextranase was approximately 110 kDa. The maximum enzyme activity was achieved at 40 °C and a pH of 8.0. The enzyme was stable at 30 °C and a pH of 5–9. The metal ion Sr2+ enhanced its activity, whereas NH4+, Co2+, Cu2+, and Li+ had the opposite effect. The dextranase effectively inhibited the formation of biofilm by Streptococcus mutans. Moreover, sodium fluoride, xylitol, and sodium benzoate, all used in dental care products, had no significant effect on dextranase activity. In addition, high-performance liquid chromatography (HPLC) showed that dextran was mainly hydrolyzed to glucose, maltose, and maltoheptaose. The results indicated that dextranase has high application potential in dental products such as toothpaste and mouthwash.
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Affiliation(s)
- Xiaohua Lai
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Xin Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Xueqin Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Tian Deng
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Yanli Feng
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Xiaopeng Tian
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
| | - Mingsheng Lyu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
- Collaborative Innovation Center of Modern Biological Manufacturing, Anhui University, Hefei 230039, China.
| | - And Shujun Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
- Collaborative Innovation Center of Modern Biological Manufacturing, Anhui University, Hefei 230039, China.
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18
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Yang L, Zhou N, Tian Y. Characterization and application of dextranase produced by Chaetomium globosum mutant through combined application of atmospheric and room temperature plasma and ethyl methyl sulfone. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.06.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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19
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Liu H, Ren W, Ly M, Li H, Wang S. Characterization of an Alkaline GH49 Dextranase from Marine Bacterium Arthrobacter oxydans KQ11 and Its Application in the Preparation of Isomalto-Oligosaccharide. Mar Drugs 2019; 17:md17080479. [PMID: 31430863 PMCID: PMC6723167 DOI: 10.3390/md17080479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/06/2019] [Accepted: 08/09/2019] [Indexed: 11/16/2022] Open
Abstract
A GH49 dextranase gene DexKQ was cloned from marine bacteria Arthrobacter oxydans KQ11. It was recombinantly expressed using an Escherichia coli system. Recombinant DexKQ dextranase of 66 kDa exhibited the highest catalytic activity at pH 9.0 and 55 °C. kcat/Km of recombinant DexKQ at the optimum condition reached 3.03 s−1 μM−1, which was six times that of commercial dextranase (0.5 s−1 μM−1). DexKQ possessed a Km value of 67.99 µM against dextran T70 substrate with 70 kDa molecular weight. Thin-layer chromatography (TLC) analysis showed that main hydrolysis end products were isomalto-oligosaccharide (IMO) including isomaltotetraose, isomaltopantose, and isomaltohexaose. When compared with glucose, IMO could significantly improve growth of Bifidobacterium longum and Lactobacillus rhamnosus and inhibit growth of Escherichia coli and Staphylococcus aureus. This is the first report of dextranase from marine bacteria concerning recombinant expression and application in isomalto-oligosaccharide preparation.
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Affiliation(s)
- Hongfei Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Wei Ren
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China
- Collaborative Innovation Center of Modern Bio-Manufacture, Anhui University, Hefei 230039, China
| | - Mingsheng Ly
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Haifeng Li
- Medical College, Hangzhou Normal University, Hangzhou 311121, China.
| | - Shujun Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, Lianyungang 222005, China.
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.
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20
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Ren W, Liu L, Gu L, Yan W, Feng YL, Dong D, Wang S, Lyu M, Wang C. Crystal Structure of GH49 Dextranase from Arthrobacter oxidans KQ11: Identification of Catalytic Base and Improvement of Thermostability Using Semirational Design Based on B-Factors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4355-4366. [PMID: 30919632 DOI: 10.1021/acs.jafc.9b01290] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The crystal structure of Dextranase from the marine bacterium Arthrobacter oxidans KQ11 (Aodex) was determined at a resolution of 1.4 Å. The crystal structure of the conserved Aodex fragment (Ala52-Thr638) consisted of an N-terminal domain N and a C-terminal domain C. The N-terminal domain N was identified as a β-sandwich, connected to a right-handed parallel β-helix at the C-terminus. Sequence comparisons, cavity regions, and key residues of the catalytic domain analysis all suggested that the Aodex was an inverting enzyme, and the catalytic acid and base were Asp439 and Asp420, respectively. Asp440 was not a general base in the Aodex catalytic domain, and Asp396 in Dex49A may not be a general base in the catalytic domain. The thermostability of the S357F mutant using semirational design based on B-factors was clearly better than that of wild-type Aodex. This process may promote the aromatic-aromatic interactions that increase the thermostability of mutant Phe357.
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Affiliation(s)
- Wei Ren
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | | | | | | | | | | | | | | | - Changhai Wang
- Jiangsu Provincial Key Laboratory of Marine Biology, College of Resources and Environmental Sciences , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
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Immobilization of Dextranase Using Anionic Natural Polymer Alginate as a Matrix for the Degradation of a Long-Chain Biopolymer (Dextran). INT J POLYM SCI 2019. [DOI: 10.1155/2019/1354872] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Alginate is an inexpensive, nontoxic, valuable biopolymer utilized in the study for the immobilization of commercially applicable biocatalyst dextranase. Dextranase was immobilized by an entrapment method, and alginate hydrogel spheres were synthesized after optimizing several parameters. A sodium alginate concentration of 4.0% was noticed to be suitable along with a calcium chloride concentration of 0.2 molar after providing a curing time of 20 minutes. After comparing the characteristics of the entrapped enzyme with those of the soluble one, it was observed that the characteristics were more or less the same except for the change in reaction time which was noticed to be prolonged in the case of entrapped dextranase while the change in temperature and pH optima was not observed. The variation in Vmax and Km values of dextranase after entrapment was also noted. However, after extensive stability examination studies, it was found that dextranase became more stable after entrapment; as a result, it retained more than 50% of its original activity at elevated temperature even after exposure for about 2.0 hours. The reusability of dextranase was up to 7.0 cycles after performing catalytic activity under constant condition.
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Purification, Characterization and Degradation Performance of a Novel Dextranase from Penicillium cyclopium CICC-4022. Int J Mol Sci 2019; 20:ijms20061360. [PMID: 30889875 PMCID: PMC6471568 DOI: 10.3390/ijms20061360] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/04/2019] [Accepted: 03/07/2019] [Indexed: 11/17/2022] Open
Abstract
A novel dextranase was purified from Penicillium cyclopium CICC-4022 by ammonium sulfate fractional precipitation and gel filtration chromatography. The effects of temperature, pH and some metal ions and chemicals on dextranase activity were investigated. Subsequently, the dextranase was used to produce dextran with specific molecular mass. Weight-average molecular mass (Mw) and the ratio of weight-average molecular mass/number-average molecular mass, or polydispersity index (Mw/Mn), of dextran were measured by multiple-angle laser light scattering (MALS) combined with gel permeation chromatography (GPC). The dextranase was purified to 16.09-fold concentration; the recovery rate was 29.17%; and the specific activity reached 350.29 U/mg. Mw of the dextranase was 66 kDa, which is similar to dextranase obtained from other Penicillium species reported previously. The highest activity was observed at 55 °C and a pH of 5.0. This dextranase was identified as an endodextranase, which specifically degraded the α-1,6 glucosidic bonds of dextran. According to metal ion dependency tests, Li+, Na+ and Fe2+ were observed to effectively improve the enzymatic activity. In particular, Li+ could improve the activity to 116.28%. Furthermore, the dextranase was efficient at degrading dextran and the degradation rate can be well controlled by the dextranase activity, substrate concentration and reaction time. Thus, our results demonstrate the high potential of this dextranase from Penicillium cyclopium CICC-4022 as an efficient enzyme to produce specific clinical dextrans.
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23
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Wang Y, Wang Q, Song X, Cai J. Hydrophilic polyethylenimine modified magnetic graphene oxide composite as an efficient support for dextranase immobilization with improved stability and recyclable performance. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2018.10.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Directing filtration to narrow molecular weight distribution of oligodextran in an enzymatic membrane reactor. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.03.062] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Sufiate BL, Soares FEDF, Moreira SS, Gouveia ADS, Cardoso EF, Braga FR, de Araújo JV, de Queiroz JH. In vitro and in silico characterization of a novel dextranase from Pochonia chlamydosporia. 3 Biotech 2018; 8:167. [PMID: 29527454 PMCID: PMC5842162 DOI: 10.1007/s13205-018-1192-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 03/01/2018] [Indexed: 10/17/2022] Open
Abstract
The objective of this study was to purify, characterize, and phylogenetically and structurally analyze the dextranase produced by the fungus Pochonia chlamydosporia. Dextranase produced by the fungus P. chlamydosporia was purified to homogeneity in two steps, with a yield of 152%, purification factor of 6.84 and specific activity of 358.63 U/mg. Its molecular weight was estimated by SDS-PAGE at 64 kDa. The enzyme presented higher activity at 50 °C and pH 5.0, using 100 mM citrate-phosphate buffer, was inhibited by Ag1+, Hg2+, Cu2+, Mg2+, and presented KM of 23.60 µM. Mature dextranase is composed of 585 amino acids residues, with a predicted molecular weight of 64.38 kDa and pI 5.96. This dextranase showed a strong phylogenetic similarity when compared to Trichoderma harzianum dextranase. Its structure consists of two domains: the first composed by 15 β strands, and the second composed by a right-handed parallel β-helix.
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Affiliation(s)
- Bruna Leite Sufiate
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais 36570-000 Brazil
| | - Filippe Elias de Freitas Soares
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais 36570-000 Brazil
| | - Samara Silveira Moreira
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais 36570-000 Brazil
| | - Angélica de Souza Gouveia
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais 36570-000 Brazil
| | - Evandro Ferreira Cardoso
- Department of Animal Science, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo 29500-000 Brazil
| | - Fabio Ribeiro Braga
- Universidade Vila Velha, Av. Comissário José Dantas de Melo, n° 21, Boa Vista, Vila Velha, Espírito Santo 29102-920 Brazil
| | - Jackson Victor de Araújo
- Department of Veterinary Medicine, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais 36570-000 Brazil
- Scholarship CNPq, Brasília, Brazil
| | - José Humberto de Queiroz
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais 36570-000 Brazil
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Purification and Characterization of a Biofilm-Degradable Dextranase from a Marine Bacterium. Mar Drugs 2018; 16:md16020051. [PMID: 29414837 PMCID: PMC5852479 DOI: 10.3390/md16020051] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 01/27/2018] [Accepted: 01/31/2018] [Indexed: 12/03/2022] Open
Abstract
This study evaluated the ability of a dextranase from a marine bacterium Catenovulum sp. (Cadex) to impede formation of Streptococcus mutans biofilms, a primary pathogen of dental caries, one of the most common human infectious diseases. Cadex was purified 29.6-fold and had a specific activity of 2309 U/mg protein and molecular weight of 75 kDa. Cadex showed maximum activity at pH 8.0 and 40 °C and was stable at temperatures under 30 °C and at pH ranging from 5.0 to 11.0. A metal ion and chemical dependency study showed that Mn2+ and Sr2+ exerted positive effects on Cadex, whereas Cu2+, Fe3+, Zn2+, Cd2+, Ni2+, and Co2+ functioned as inhibitors. Several teeth rinsing product reagents, including carboxybenzene, ethanol, sodium fluoride, and xylitol were found to have no effects on Cadex activity. A substrate specificity study showed that Cadex specifically cleaved the α-1,6 glycosidic bond. Thin layer chromatogram and high-performance liquid chromatography indicated that the main hydrolysis products were isomaltoogligosaccharides. Crystal violet staining and scanning electron microscopy showed that Cadex impeded the formation of S. mutans biofilm to some extent. In conclusion, Cadex from a marine bacterium was shown to be an alkaline and cold-adapted endo-type dextranase suitable for development of a novel marine agent for the treatment of dental caries.
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Wang Y, Wang Q, Song X, Cai J. Improving the stability and reusability of dextranase by immobilization on polyethylenimine modified magnetic particles. NEW J CHEM 2018. [DOI: 10.1039/c8nj00227d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The stability and reusability of dextranase were improved by immobilizing it on polyethylenimine modified magnetic particles.
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Affiliation(s)
- Yajie Wang
- Department of Pharmacy
- Anhui Medical College
- Hefei
- P. R. China
| | - Qiang Wang
- Department of Pharmacy
- Anhui Medical College
- Hefei
- P. R. China
| | - Xiaoping Song
- Department of Pharmacy
- Anhui Medical College
- Hefei
- P. R. China
| | - Jingjing Cai
- Department of Pharmacy
- Anhui Medical College
- Hefei
- P. R. China
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