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Xia Y, Guo W, Han L, Shen W, Chen X, Yang H. Significant Improvement of Both Catalytic Efficiency and Stability of Fructosyltransferase from Aspergillus niger by Structure-Guided Engineering of Key Residues in the Conserved Sequence of the Catalytic Domain. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7202-7210. [PMID: 35649036 DOI: 10.1021/acs.jafc.2c01699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Fructosyltransferase is a key enzyme in fructo-oligosaccharide production, while the highly demanding conditions of industrial processes may reduce its stability and activity. This study employs sequence alignment and structural analysis to target three potential residues (Gln38, Ile39, and Cys43) around the active center of FruSG from Aspergillus niger, and mutants with greatly improved activity and stability were obtained through site-directed mutagenesis. The Km values of C43N and Q38Y were, respectively, reduced to 60.8 and 93.1% compared to those of WT. Meanwhile, the kcat of C43N was increased by 21.2-fold compared to that of WT. These imply that both the affinity and catalytic efficiency of C43N were significantly enhanced compared to WT. The Glide docking score of sucrose inside C43N was calculated to be -5.980, which was lower than that of WT (-4.887). What is more, the proposed general acid/base catalyst Glu273 with a lower pKa value of C43N calculated by PROPKA might contribute to an easier catalytic reaction compared to that of WT. The thermal stability and pH stability of the mutant C43N were significantly enhanced compared to those of WT, and more hydrogen bonds formed during molecular dynamics simulations might contribute to the improved stability of C43N.
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Affiliation(s)
- Yuanyuan Xia
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Wenwen Guo
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Laichuang Han
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Wei Shen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Xianzhong Chen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Haiquan Yang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China
- School of Biotechnology, Jiangnan University, Wuxi 214122, China
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2
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Hollá V, Karkeszová K, Antošová M, Polakovič M. Transglycosylation properties of a Kluyveromyces lactis enzyme preparation: Production of tyrosol β-fructoside using free and immobilized enzyme. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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3
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Wang Y, Shang X, Cao F, Yang H. Research Progress and Prospects for Fructosyltransferases. CHEMBIOENG REVIEWS 2021. [DOI: 10.1002/cben.202000011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yitian Wang
- Yangzhou University Clinical Medical College 225009 Yangzhou China
- Northern Jiangsu People's Hospital 225001 Yangzhou China
- Jiangnan University School of Biotechnology 214122 Wuxi China
| | - Xiujie Shang
- Yangzhou University Clinical Medical College 225009 Yangzhou China
- Qingdao Dengta Flavoring and Food Co. Ltd 266399 Qingdao China
| | - Fan Cao
- Vanderbilt University Department of Biochemistry 37235 Nashville TN USA
| | - Haiquan Yang
- Jiangnan University School of Biotechnology 214122 Wuxi China
- Jiangnan University The Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of Education 214122 Wuxi China
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Ojwach J, Kumar A, Mukaratirwa S, Mutanda T. Purification and biochemical characterization of an extracellular fructosyltransferase enzyme from Aspergillus niger sp. XOBP48: implication in fructooligosaccharide production. 3 Biotech 2020; 10:459. [PMID: 33088656 DOI: 10.1007/s13205-020-02440-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 09/15/2020] [Indexed: 11/26/2022] Open
Abstract
An extracellular fructosyltransferase (Ftase) enzyme with a molar mass of ≈70 kDa from a newly isolated indigenous coprophilous fungus Aspergillus niger sp. XOBP48 is purified to homogeneity and characterized in this study. The enzyme was purified to 4.66-fold with a total yield of 15.53% and specific activity of 1219.17 U mg-1 of protein after a three-step procedure involving (NH4)2SO4 fractionation, dialysis and anion exchange chromatography. Ftase showed optimum activity at pH 6.0 and temperature 50 °C. Ftase exhibited over 80% residual activity at pH range of 4.0-10.0 and ≈90% residual activity at temperature range of 40-60 °C for 6 h. Metal ion inhibitors Hg2+ and Ag+ significantly inhibited Ftase activity at 1 mmol concentration. Ftase showed K m, v max and k cat values of 79.51 mmol, 45.04 µmol min-1 and 31.5 min-1, respectively, with a catalytic efficiency (k cat/K m) of 396 µmol-1 min-1 for the substrate sucrose. HPLC-RI experiments identified the end products of fructosyltransferase activity as monomeric glucose, 1-kestose (GF2), and 1,1-kestotetraose (GF3). This study evaluates the feasibility of using this purified extracellular Ftase for the enzymatic synthesis of biofunctional fructooligosaccharides.
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Affiliation(s)
- Jeff Ojwach
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Private Bag X54001, Durban, 4000 South Africa
| | - Ajit Kumar
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Private Bag X54001, Durban, 4000 South Africa
| | - Samson Mukaratirwa
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Private Bag X54001, Durban, 4000 South Africa
- Present Address: One Health Center for Zoonoses and Tropical Veterinary Medicine, Ross University School of Veterinary Medicine, Basseterre, Saint Kitts and Nevis
| | - Taurai Mutanda
- Department of Nature Conservation, Faculty of Natural Sciences, Centre for Algal Biotechnology, Mangosuthu University of Technology, P.O. Box 12363, Jacobs 4026, Durban, South Africa
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5
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Mora Vargas JA, Orduña Ortega J, Metzker G, Larrahondo JE, Boscolo M. Natural sucrose esters: Perspectives on the chemical and physiological use of an under investigated chemical class of compounds. PHYTOCHEMISTRY 2020; 177:112433. [PMID: 32570051 DOI: 10.1016/j.phytochem.2020.112433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
The present review describes the chemistry and physiological properties of the sucrose esters (SEs) obtained from natural or synthetic pathways, with emphasis on those that have aliphatic and phenylpropanoid substituents on their sucrose moiety. Synthesis, extraction and characterization methods for the SEs and NSEs are discussed in terms of synthetic procedures, separation techniques and spectroscopic methods. The physiological properties are discussed taking into account the nature of the substituent groups and their regiochemistry (position and number of substitutions) on the sucrose moiety.
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Affiliation(s)
- Jorge Andrés Mora Vargas
- São Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, São Jose do Rio Preto, SP, Brazil.
| | - Julieth Orduña Ortega
- São Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, São Jose do Rio Preto, SP, Brazil; Universidad Santiago de Cali, Facultad de Ciencias Básicas, Campus Pampalinda, Santiago de Cali, Colombia.
| | - Gustavo Metzker
- São Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, São Jose do Rio Preto, SP, Brazil.
| | - Jesus Eliecer Larrahondo
- Universidad Santiago de Cali, Facultad de Ciencias Básicas, Campus Pampalinda, Santiago de Cali, Colombia.
| | - Mauricio Boscolo
- São Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, São Jose do Rio Preto, SP, Brazil.
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Teng Y, Stewart SG, Hai YW, Li X, Banwell MG, Lan P. Sucrose fatty acid esters: synthesis, emulsifying capacities, biological activities and structure-property profiles. Crit Rev Food Sci Nutr 2020; 61:3297-3317. [PMID: 32746632 DOI: 10.1080/10408398.2020.1798346] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The notable physical and chemical properties of sucrose fatty acid esters have prompted their use in the chemical industry, especially as surfactants, since 1939. Recently, their now well-recognized value as nutraceuticals and as additives in cosmetics has significantly increased demand for ready access to them. As such a review of current methods for the preparation of sucrose fatty acid esters by both chemical and enzymatic means is warranted and is presented here together with an account of the historical development of these compounds as surfactants (emulsifiers). The somewhat belated recognition of the antimicrobial, anticancer and insecticidal activities of sucrose esters is also discussed along with a commentary on their structure-property profiles.
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Affiliation(s)
- Yinglai Teng
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Zhuhai, Guangdong, China.,College of Pharmacy, Jinan University, Guangzhou, Guangdong, China
| | - Scott G Stewart
- School of Molecular Sciences, The University of Western Australia (M310), Crawley, Western Australia, Australia.,Research Laboratories, Guangzhou Cardlo Biochemical Technology Co., Ltd, Guangzhou, Guangdong, China
| | - Yao-Wen Hai
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Zhuhai, Guangdong, China
| | - Xuan Li
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Zhuhai, Guangdong, China
| | - Martin G Banwell
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Zhuhai, Guangdong, China.,Research Laboratories, Guangzhou Cardlo Biochemical Technology Co., Ltd, Guangzhou, Guangdong, China.,Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Ping Lan
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Zhuhai, Guangdong, China.,College of Pharmacy, Jinan University, Guangzhou, Guangdong, China.,Research Laboratories, Guangzhou Cardlo Biochemical Technology Co., Ltd, Guangzhou, Guangdong, China
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Batista JM, Brandão-Costa RM, Carneiro da Cunha MN, Rodrigues HO, Porto AL. Purification and biochemical characterization of an extracellular fructosyltransferase-rich extract produced by Aspergillus tamarii Kita UCP1279. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101647] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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8
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Han S, Ye T, Leng S, Pan L, Zeng W, Chen G, Liang Z. Purification and biochemical characteristics of a novel fructosyltransferase with a high FOS transfructosylation activity from Aspergillus oryzae S719. Protein Expr Purif 2019; 167:105549. [PMID: 31805395 DOI: 10.1016/j.pep.2019.105549] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/28/2019] [Accepted: 11/28/2019] [Indexed: 11/16/2022]
Abstract
Fructooligosaccharides (FOS) have widely used for the manufacture of low-calorie and functional foods, because they can inhibit intestinal pathogenic microorganism growth and increase the absorption of Ca2+ and Mg2+. In this study, the novel fructosyltransferase (FTase) from Aspergillus oryzae strain S719 was successfully purified and characterized. The specific activity of the final purified material was 4200 mg-1 with purification ratio of 66 times and yield of 26%. The molecular weight of FTase of A. oryzae S719 was around 95 kDa by SDS-PAGE, which was identified as a type of FTase by Mass Spectrometry (MS). The purified FTase had optimum temperature and pH of 55 °C and 6.0, respectively. The FTase showed to be stable with more than 80% of its original activity at room temperature after 12 h and maintaining activity above 90% at pH 4.0-11.0. The Km and kcat values of the FTase were 310 mmol L-1 and 2.0 × 103 min-1, respectively. The FTase was activated by 5 mmol L-1 Mg2+ and 10 mmol L-1 Na+ (relative activity of 116 and 114%, respectively), indicating that the enzyme was Mg2+ and Na+ dependent. About 64% of FOS was obtained by the purified FTase under 500 g L-1 sucrose within 4 h of reaction time, which was the shortest reaction time to be reported regarding the purified enzyme production of FOS. Together, these results indicated that the FTase of A. oryzae S719 is an excellent candidate for the industrial production of FOS.
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Affiliation(s)
- Susu Han
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, China; College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China
| | - Tong Ye
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, China; College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China
| | - Shuo Leng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, China; College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China
| | - Lixia Pan
- National Engineering Research Center for Non-Food Biorefinery, State Key Laboratory of Non-Food Biomass and Enzyme Technology, Guangxi Key Laboratory of Bio-refinery, Guangxi Biomass, Engineering Technology Research Center, Guangxi Academy of Sciences, 98 Daling Road, Nanning, 530007, China
| | - Wei Zeng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, China; College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China
| | - Guiguang Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, China; College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China.
| | - Zhiqun Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, China; College of Life Science and Technology, Guangxi University, Nanning, 530004, Guangxi, China.
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9
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Ademakinwa AN, Agboola FK. Some biochemical, catalytic, thermodynamic and kinetic properties of purified fructosyltransferase from wild and improved mutant-typeAureobasidium pullulansNAC8. BIOCATAL BIOTRANSFOR 2019. [DOI: 10.1080/10242422.2019.1671376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Adedeji N. Ademakinwa
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University, Ile-Ife, Nigeria
- Department of Physical and Chemical Sciences, Elizade University, Ilara-Mokin, Nigeria
| | - Femi K. Agboola
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University, Ile-Ife, Nigeria
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10
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Oliveira RL, Silva MF, Converti A, Porto TS. Biochemical characterization and kinetic/thermodynamic study of
Aspergillus tamarii
URM4634 β‐fructofuranosidase with transfructosylating activity. Biotechnol Prog 2019; 35:e2879. [DOI: 10.1002/btpr.2879] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/19/2019] [Accepted: 07/01/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Rodrigo Lira Oliveira
- Northeast Biotechnology Network/RENORBIOFederal Rural University of Pernambuco (UFRPE) Recife Brazil
| | - Marcos Fellipe Silva
- Academic Unit of Garanhuns/UAGFederal Rural University of Pernambuco (UFRPE) Garanhuns Brazil
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical EngineeringGenoa University Genoa Italy
| | - Tatiana Souza Porto
- Academic Unit of Garanhuns/UAGFederal Rural University of Pernambuco (UFRPE) Garanhuns Brazil
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Highly Efficient Synthesis of 2,5-Dihydroxypyridine using Pseudomonas sp. ZZ-5 Nicotine Hydroxylase Immobilized on Immobead 150. Catalysts 2018. [DOI: 10.3390/catal8110548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
In this report, the use of immobilized nicotine hydroxylase from Pseudomonas sp. ZZ-5 (HSPHZZ) for the production of 2,5-dihydroxypyridine (2,5-DHP) from 6-hydroxy-3-succinoylpyridine (HSP) in the presence of nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD) is described. HSPHZZ was covalently immobilized on Immobead 150 (ImmHSPHZZ). ImmHSPHZZ (obtained with 5–30 mg of protein per gram of support) catalyzed the hydrolysis of HSP to 2,5-DHP. At a protein loading of 15 mg g−1, ImmHSPHZZ converted 93.6% of HSP to 2,5-DHP in 6 h. The activity of ImmHSPHZZ was compared with that of free HSPHZZ under various conditions, including pH, temperature, enzyme concentration, substrate concentration and stability over time, and kinetic parameters were measured. The results showed that ImmHSPHZZ performed better over wider ranges of pH and temperature when compared with that of HSPHZZ. The optimal concentrations of ImmHSPHZZ and substrate were 30 mg L−1 and 0.75 mM, respectively. Under optimal conditions, 94.5 mg L−1 of 2,5-DHP was produced after 30 min with 85.4% conversion. After 8 reaction cycles and 6 days of storage, 51.3% and 75.0% of the initial enzyme activity remained, respectively. The results provide a framework for development of commercially suitable immobilized enzymes that produce 2,5-DHP.
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Li Q, Zhang X, Guo X, Yao P, Wei Y. Enzymatic Synthesis of Sucrose-6-acetate by a Novel Immobilized Fructosyltransferase From Aspergillus sp. GX-0010. IRANIAN JOURNAL OF BIOTECHNOLOGY 2018; 16:e1380. [PMID: 30805381 PMCID: PMC6371629 DOI: 10.21859/ijb.1380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 11/25/2017] [Accepted: 12/05/2017] [Indexed: 12/03/2022]
Abstract
Background Sucralose is an ideal food sweetener and sucrose-6-acetate (s-6-a) is a key intermediate for synthesis of sucralose. Synthesis of s-6-a was studied by free fructosyltransferase (FTase) from Aspergillus oryzae. Because of the limitations of free enzyme in stability and reusability, a FTase obtained from the new isolated Aspergillus sp. GX-0010 was immobilized and investigated for the potential of s-6-a synthesis. Objectives The synthesis of s-6-a with sucrose and glucose-6-acetate (g-6-a) by immobilized fructosyltransferase (IFTase) from a novel Aspergillus sp. GX-0010 was studied, and its synthesis conditions were also optimized. Materials and Methods Aspergillus sp. GX-0010 was isolated. The effects of reaction time, ratio of g-6-a to sucrose, pH, substrate (sucrose and g-6-a) concentrations, IFTase concentration and temperature on the synthesis of s-6-a were investigated. Results IFTase was able to catalyze sucrose and g-6-a to synthesize the s-6-a. Thermal and pH stability of IFTase were promoted once compared to the FTase. The optimal condition for IFTase catalysis was obtained at 50 °C, 60 min reaction time, pH 6.5, 1:2 ratio of g-6-a to sucrose and 35.0 g.L-1 concentration of enzyme. Under this optimal condition, a g-6-a conversion rate of 24.96% was reached. Conclusions This study showed IFTase has a great potential in the biosynthesis of s-6-a, a key intermediate of sucralose synthesis.
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Affiliation(s)
- Qunliang Li
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Xin Zhang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Xiaobo Guo
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China
| | - Pingjia Yao
- The State Key Laboratory of Subtropical Bio-resource Conservation and Utilization, Guangxi University, Nanning, China
| | - Yuanan Wei
- The State Key Laboratory of Subtropical Bio-resource Conservation and Utilization, Guangxi University, Nanning, China
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Huang MP, Wu M, Xu QS, Mo DJ, Feng JX. Highly Efficient Synthesis of Fructooligosaccharides by Extracellular Fructooligosaccharide-Producing Enzymes and Immobilized Cells of Aspergillus aculeatus M105 and Purification and Biochemical Characterization of a Fructosyltransferase from the Fungus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:6425-6432. [PMID: 27492129 DOI: 10.1021/acs.jafc.6b02115] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, Aspergillus aculeatus M105 was obtained to produce high extracellular fructooligosaccharide-producing enzyme activity. The maximum yields of fructooligosaccharides produced by its extracellular enzymes and immobilized cells were 67.54 and 65.47% (w/w), respectively. A fructosyltransferase (FTase), AaFT32A, was purified from M105. The optimal pH and temperature of AaFT32A were pH 5.0-6.0 and 65 °C, respectively. The Km, Vmax, and kcat values for the transfructosylating activity of AaFT32A were 2267 mM, 1347 μmol/min/mg protein, and 1550.2 s(-1), respectively, and those values for the hydrolytic activity of AaFT32A were 6.10 mM, 32.44 μmol/min/mg protein, and 37.3 s(-1), respectively. The sequence of AaFT32A deduced from the cloned gene shared 99.4% identity with a FTase from Aspergillus japonicus CB05 and a fructofuranosidase from Aspergillus niger and 96.5% identity with a FTase (Aspacl_37092) from A. aculeatus ATCC 16872. The fungal strain and its FTase may have potential applications in the prebiotics industry.
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Affiliation(s)
- Mei-Ping Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, College of Life Science and Technology, Guangxi University , 100 Daxue Road, Nanning 530004, China
| | - Min Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, College of Life Science and Technology, Guangxi University , 100 Daxue Road, Nanning 530004, China
| | - Qiang-Sheng Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, College of Life Science and Technology, Guangxi University , 100 Daxue Road, Nanning 530004, China
| | - De-Jiao Mo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, College of Life Science and Technology, Guangxi University , 100 Daxue Road, Nanning 530004, China
| | - Jia-Xun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Subtropical Bioresources Conservation and Utilization, College of Life Science and Technology, Guangxi University , 100 Daxue Road, Nanning 530004, China
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Cloning, Expression and Characterization of a Novel Fructosyltransferase from Aspergillus oryzae ZZ-01 for the Synthesis of Sucrose 6-Acetate. Catalysts 2016. [DOI: 10.3390/catal6050067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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15
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Heterologous expression and enzymatic characterization of fructosyltransferase from Aspergillus niger in Pichia pastoris. N Biotechnol 2016; 33:164-70. [DOI: 10.1016/j.nbt.2015.04.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 03/12/2015] [Accepted: 04/30/2015] [Indexed: 11/18/2022]
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16
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Wei T, Jia W, Yu X, Mao D. Enhancement of enzymatic synthesis of sucrose 6-acetate with Aspergillus oryzae fructosyltransferase using ionic liquid as a cosolvent. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Guo W, Yang H, Qiang S, Fan Y, Shen W, Chen X. Overproduction, purification, and property analysis of an extracellular recombinant fructosyltransferase. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2620-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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