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Rhizopus oryzae Inulinase Production and Characterization with Application in Chicory Root Saccharification. MICROBIOLOGY RESEARCH 2023. [DOI: 10.3390/microbiolres14010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
The objective of this study was to create a fermentation process for the production of inulinase, an important enzyme with numerous applications in the food and pharmaceutical industries, using low-cost agricultural waste as substrates for Rhizopus oryzae NRRL 3563. High titer inulinase production in chicory roots by Rhizopus oryzae in a submerged culture was accomplished using a statistical experimental design. A two-level Plackett–Burman design followed by a three-level Box–Behnken design producing a high inulinase titer of 1085.11 U/mL, 2.83-fold the maximum level, was obtained in the screening experiment. The optimal levels were as follows: chicory root, 10 g/L; NaNO3, 5 g/L; and KCl, 0.2 g/L. The produced inulinase enzyme was purified using 70% ammonium sulfate precipitation and ultra-filtration causing 3.63-fold purification with 60% activity recovery. The enzyme had a molecular weight of approximately 130 KDa. The purified enzyme showed optimum activity at 50 °C and pH 6.0. The pH stability range was three to six and the temperature stability was up 70 °C. The purified inulinase could hydrolyze inulin and sucrose, but not cellobiose or soluble starch. Km and Vmax for inulin were determined to be 0.8 mg/mL and 50,000 U/mg, respectively. The two-level Plackett–Burman design was applied followed by a Box–Behnken model for optimization of fermentation conditions. Accordingly, the optimal combination of fermentation was a reaction time of seven hours, a temperature of 60 °C, and an enzyme concentration of 40,000 U/mL, which resulted in a 58.07% saccharification yield. The characteristics of the enzyme and its kinetic parameters suggested that it was highly effective in the fermentation of inulin and inulin-containing substrates. Additionally, it raises the potential of using inulinase enzymes in pharmaceutical and food industries.
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Michel MR, Gallegos ACF, Villarreal-Morales SL, Aguilar-Zárate P, Aguilar CN, Riutort M, Rodríguez-Herrera R. Fructosyltransferase production by Aspergillus oryzae BM-DIA using solid-state fermentation and the properties of its nucleotide and protein sequences. Folia Microbiol (Praha) 2021; 66:469-481. [PMID: 33770363 DOI: 10.1007/s12223-021-00862-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 12/17/2020] [Indexed: 01/25/2023]
Abstract
Fructosyltransferase (FTase) catalyzes the transfer of a fructosyl group to a sucrose molecule or a fructooligosaccharide (FOS) when a FOS with a longer chain is formed. Production of FTase by two Aspergillus species and its mixture was exploited using solid-state fermentation (SSF) and employing agave sap as substrate. The maximum FTase activity (1.59 U/mL) by Aspergillus oryzae was obtained after 24 h, using a temperature of 30 °C, with an inoculum of 2 × 107 spores/mL. The nucleotide sequence coding for the fructosyltransferase showed 1494 bp and encodes for a protein of 498 amino acids. The hypothetical molecular tertiary structure of Aspergillus oryzae BM-DIA FTase showed the presence of structural domains, such as a five-bladed beta-propeller domain characteristic of GH (glycoside hydrolase) and C terminal, which forms a beta-sandwich module. This study contributes to the knowledge of stability, compatibility, and genetic expression of Aspergillus oryzae BM-DIA under SSF bioprocess conditions for industrial production of fructosyltransferase.
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Affiliation(s)
- Mariela R Michel
- Department of Food Research, School of Chemistry, Autonomous University of Coahuila, Blvd. V. Carranza e Ing, José Cárdenas S/N. República Oriente, 25280, Saltillo, Coahuila, Mexico
| | - Adriana C Flores- Gallegos
- Department of Food Research, School of Chemistry, Autonomous University of Coahuila, Blvd. V. Carranza e Ing, José Cárdenas S/N. República Oriente, 25280, Saltillo, Coahuila, Mexico
| | - Sandra L Villarreal-Morales
- Department of Food Research, School of Chemistry, Autonomous University of Coahuila, Blvd. V. Carranza e Ing, José Cárdenas S/N. República Oriente, 25280, Saltillo, Coahuila, Mexico
| | - Pedro Aguilar-Zárate
- Engineering Department, Instituto Tecnológico de Ciudad Valles, Tecnológico Nacional de México, Carr. al Ingenio Plan de Ayala Km. 2, Col Vista Hermosa, 79010, Ciudad Valles, San Luis Potosí, México
| | - Cristóbal N Aguilar
- Department of Food Research, School of Chemistry, Autonomous University of Coahuila, Blvd. V. Carranza e Ing, José Cárdenas S/N. República Oriente, 25280, Saltillo, Coahuila, Mexico
| | - Marta Riutort
- Departament de Genética, Facultat de Biología, Universitat de Barcelona, Avenida Diagonal, 643, 08028, Barcelona, Spain
| | - Raúl Rodríguez-Herrera
- Department of Food Research, School of Chemistry, Autonomous University of Coahuila, Blvd. V. Carranza e Ing, José Cárdenas S/N. República Oriente, 25280, Saltillo, Coahuila, Mexico.
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Corrado I, Cascelli N, Ntasi G, Birolo L, Sannia G, Pezzella C. Optimization of Inulin Hydrolysis by Penicillium lanosocoeruleum Inulinases and Efficient Conversion Into Polyhydroxyalkanoates. Front Bioeng Biotechnol 2021; 9:616908. [PMID: 33732688 PMCID: PMC7959777 DOI: 10.3389/fbioe.2021.616908] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/29/2021] [Indexed: 11/13/2022] Open
Abstract
Inulin, a polydisperse fructan found as a common storage polysaccharide in the roots of several plants, represents a renewable non-food biomass resource for the synthesis of bio-based products. Exploitation of inulin-containing feedstocks requires the integration of different processes, including inulinase production, saccharification of inulin, and microbial fermentation for the conversion of released sugars into added-value products. In this work paper, a new microbial source of inulinase, Penicillium lanosocoeruleum, was identified through the screening of a fungal library. Inulinase production using inulin as C-source was optimized, reaching up to 28 U mL-1 at the 4th day of growth. The fungal inulinase mixture (PlaI) was characterized for pH and temperature stability and activity profile, and its isoenzymes composition was investigated by proteomic strategies. Statistical optimization of inulin hydrolysis was performed using a central composite rotatable design (CCRD), by analyzing the effect of four factors. In the optimized conditions (T, 45.5°C; pH, 5.1; substrate concentration, 60 g L-1; enzyme loading, 50 U gsubstrate -1), up to 96% inulin is converted in fructose within 20 h. The integration of PlaI in a process for polyhydroxyalkanoate (PHA) production by Cupriavidus necator from inulin was tested in both separated hydrolysis and fermentation (SHF) and simultaneous saccharification and fermentation (SSF). A maximum of 3.2 g L-1 of PHB accumulation, corresponding to 82% polymer content, was achieved in the SSF. The proved efficiency in inulin hydrolysis and its effective integration into a SSF process pave the way to a profitable exploitation of the PlaI enzymatic mixture in inulin-based biorefineries.
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Affiliation(s)
- Iolanda Corrado
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Nicoletta Cascelli
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Georgia Ntasi
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Leila Birolo
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Giovanni Sannia
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Naples, Italy
| | - Cinzia Pezzella
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
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Optimization of inulinase production by a newly isolated Penicillium amphipolaria strain using solid-state fermentation of hardy sugarcane stems. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Karim A, Gerliani N, Aïder M. Kluyveromyces marxianus: An emerging yeast cell factory for applications in food and biotechnology. Int J Food Microbiol 2020; 333:108818. [PMID: 32805574 DOI: 10.1016/j.ijfoodmicro.2020.108818] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 11/18/2022]
Abstract
Several yeasts, which are eukaryotic microorganisms, have long been used in different industries due to their potential applications, both for fermentation and for the production of specific metabolites. Kluyveromyces marxianus is one of the most auspicious nonconventional yeasts, generally isolated from wide-ranging natural habitats such as fermented traditional dairy products, kefir grain, sewage from sugar industries, sisal leaves, and plants. This is a food-grade yeast with various beneficial traits, such as rapid growth rate and thermotolerance that make it appealing for different industrial food and biotechnological applications. K. marxianus is a respiro-fermentative yeast likely to produce energy by either respiration or fermentation pathways. It generates a wide-ranging specific metabolites and could contribute to a variety of different food and biotechnological industries. Although Saccharomyces cerevisiae is the most widely used dominant representative in all aspects, many applications of K. marxianus in biotechnology, food and environment have only started to emerge nowadays; some of the most promising applications are reviewed here. The general physiology of K. marxianus is outlined, and then the different applications are discussed: first, the applications of K. marxianus in biotechnology, and then the recent advances and possible applications in food, feed and environmental industries. Finally, this review provides a discussion of the main challenges and some perspectives for targeted applications of K. marxianus in the modern food technology and applied biotechnology in order to exploit the full potential of this yeast which can be used as a cell factory with great efficiency.
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Affiliation(s)
- Ahasanul Karim
- Department of Soil Sciences and Agri-food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada; Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
| | - Natela Gerliani
- Department of Soil Sciences and Agri-food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada; Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada
| | - Mohammed Aïder
- Department of Soil Sciences and Agri-food Engineering, Université Laval, Quebec, QC G1V 0A6, Canada; Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada.
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Das D, Selvaraj R, Ramananda Bhat M. Optimization of inulinase production by a newly isolated strain Aspergillus flavus var. flavus by solid state fermentation of Saccharum arundinaceum. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101363] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Germec M, Turhan I. Evaluation of carbon sources for the production of inulinase by Aspergillus niger A42 and its characterization. Bioprocess Biosyst Eng 2019; 42:1993-2005. [PMID: 31414183 DOI: 10.1007/s00449-019-02192-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 08/07/2019] [Indexed: 11/30/2022]
Abstract
Inulinases are used for the production of high-fructose syrup and fructooligosaccharides, and are widely utilized in food and pharmaceutical industries. In this study, different carbon sources were screened for inulinase production by Aspergillus niger in shake flask fermentation. Optimum working conditions of the enzyme were determined. Additionally, some properties of produced enzyme were determined [activation (Ea)/inactivation (Eia) energies, Q10 value, inactivation rate constant (kd), half-life (t1/2), D value, Z value, enthalpy (ΔH), free energy (ΔG), and entropy (ΔS)]. Results showed that sugar beet molasses (SBM) was the best in the production of inulinase, which gave 383.73 U/mL activity at 30 °C, 200 rpm and initial pH 5.0 for 10 days with 2% (v/v) of the prepared spore solution. Optimum working conditions were 4.8 pH, 60 °C, and 10 min, which yielded 604.23 U/mL, 1.09 inulinase/sucrase ratio, and 2924.39 U/mg. Additionally, Ea and Eia of inulinase reaction were 37.30 and 112.86 kJ/mol, respectively. Beyond 60 °C, Q10 values of inulinase dropped below one. At 70 and 80 °C, t1/2 of inulinase was 33.6 and 7.2 min; therefore, inulinase is unstable at high temperatures, respectively. Additionally, t1/2, D, ΔH, ΔG values of inulinase decreased with the increase in temperature. Z values of inulinase were 7.21 °C. Negative values of ΔS showed that enzymes underwent a significant process of aggregation during denaturation. Consequently, SBM is a promising carbon source for inulinase production by A. niger. Also, this is the first report on the determination of some properties of A. niger A42 (ATCC 204,447) inulinase.
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Affiliation(s)
- Mustafa Germec
- Department of Food Engineering, Akdeniz University, 07058, Antalya, Turkey
| | - Irfan Turhan
- Department of Food Engineering, Akdeniz University, 07058, Antalya, Turkey.
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Bio-Catalysis and Biomedical Perspectives of Magnetic Nanoparticles as Versatile Carriers. MAGNETOCHEMISTRY 2019. [DOI: 10.3390/magnetochemistry5030042] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In recent years, magnetic nanoparticles (MNPs) have gained increasing attention as versatile carriers because of their unique magnetic properties, biocatalytic functionalities, and capabilities to work at the cellular and molecular level of biological interactions. Moreover, owing to their exceptional functional properties, such as large surface area, large surface-to-volume ratio, and mobility and high mass transference, MNPs have been employed in several applications in different sectors such as supporting matrices for enzymes immobilization and controlled release of drugs in biomedicine. Unlike non-magnetic carriers, MNPs can be easily separated and recovered using an external magnetic field. In addition to their biocompatible microenvironment, the application of MNPs represents a remarkable green chemistry approach. Herein, we focused on state-of-the-art two majorly studied perspectives of MNPs as versatile carriers for (1) matrices for enzymes immobilization, and (2) matrices for controlled drug delivery. Specifically, from the applied perspectives of magnetic nanoparticles, a series of different applications with suitable examples are discussed in detail. The second half is focused on different metal-based magnetic nanoparticles and their exploitation for biomedical purposes.
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Picazo B, Flores-Gallegos AC, Ilina A, Rodríguez-Jasso RM, Aguilar CN. Production of an Enzymatic Extract From Aspergillus oryzae DIA-MF to Improve the Fructooligosaccharides Profile of Aguamiel. Front Nutr 2019; 6:15. [PMID: 30847344 PMCID: PMC6393340 DOI: 10.3389/fnut.2019.00015] [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: 10/13/2018] [Accepted: 01/30/2019] [Indexed: 12/15/2022] Open
Abstract
Aguamiel is a natural sap produced by some species of agave plants, such as Agave salmiana, A. atrovirens, or A. angustifolia. It is a product with a high concentration of fructose, glucose or sucrose, although its composition may vary depending on the season in which it is produced, and may also contain agave fructans (or agavins) or fructooligosaccharides (FOS). It has been reported that FOS can be produced by enzymes that act on sucrose or inulin, transfructosylating or hydrolyzing these materials, respectively. Due to the sugar content in aguamiel, the application of an enzymatic complex produced by Aspergillus oryzae DIA MF was carried out. This complex was characterized by 1-D electrophoresis SDS-PAGE, and its transfructosylation and hydrolysis activities were determined by HPLC. In order to determine the conditions at which the concentration of FOS in this beverage increased, kinetics were carried out at different temperatures (30, 50, and 70°C) and times (0, 1, 2, 3, 4, 5, 10, and 15 h). Finally, the antioxidant and prebiotic activities were evaluated. FOS concentration in aguamiel was increased from 1.61 ± 0.08 to 31.01 ± 3.42 g/ L after 10 h reaction at 30°C applying 10% enzymatic fraction-substrate (v/v). Antioxidant activity was highly increased (34.81–116.46 mg/eq Trolox in DPPH assay and 42.65 to 298.86 mg/eq Trolox in FRAP assay) and growth of probiotic bacteria was higher in aguamiel after the enzymatic treatment. In conclusion, after the application of the enzymatic treatment, aguamiel was enriched with FOS which improved antioxidant and prebiotic properties, so it can be used as a functional food.
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Affiliation(s)
- Brian Picazo
- Group of Bioprocesses and Bioproducts, Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila, Saltillo, Mexico
| | - Adriana C Flores-Gallegos
- Group of Bioprocesses and Bioproducts, Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila, Saltillo, Mexico
| | - Anna Ilina
- Group of Bioprocesses and Bioproducts, Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila, Saltillo, Mexico
| | - Rosa María Rodríguez-Jasso
- Group of Bioprocesses and Bioproducts, Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila, Saltillo, Mexico
| | - Cristóbal N Aguilar
- Group of Bioprocesses and Bioproducts, Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila, Saltillo, Mexico
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Mohammadi M, Rezaei Mokarram R, Ghorbani M, Hamishehkar H. Inulinase immobilized gold-magnetic nanoparticles as a magnetically recyclable biocatalyst for facial and efficient inulin biotransformation to high fructose syrup. Int J Biol Macromol 2019; 123:846-855. [DOI: 10.1016/j.ijbiomac.2018.11.160] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/15/2018] [Accepted: 11/16/2018] [Indexed: 01/31/2023]
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Chikkerur J, Samanta AK, Dhali A, Kolte AP, Roy S, Maria P. In Silico evaluation and identification of fungi capable of producing endo-inulinase enzyme. PLoS One 2018; 13:e0200607. [PMID: 30001376 PMCID: PMC6042768 DOI: 10.1371/journal.pone.0200607] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 06/29/2018] [Indexed: 11/28/2022] Open
Abstract
The enzyme endo-inulinase hydrolyzes inulin to short chain fructooligosaccharides (FOS) that are potential prebiotics with many health promoting benefits. Although the raw materials for inulin production are inexpensive and readily available, commercial production of FOS from inulin is limited due to inadequate availability of the enzyme source. This study aimed to identify the fungi capable of producing endo-inulinase based on the in silico analysis of proteins retrieved from non-redundant protein sequence database. The endo-inulinase of Aspergillus ficuum was used as reference sequence. The amino acid sequences with >90% sequence coverage, belonging to different fungi were retrieved from the database and used for constructing three-dimensional (3D) protein models using SWISS-MODEL and Bagheerath H. The 3D models of comparable quality as that of the reference endo-inulinase were selected based on QMEAN Z score. The selected models were evaluated and validated for different structural and functional qualities using Pro-Q, ProSA, PSN-QA, VERIFY-3D, PROCHECK, PROTSAV metaserver, STRAP, molecular docking, and molecular dynamic simulation analyses. A total of 230 proteins belonging to 53 fungal species exhibited sequence coverage >90%. Sixty one protein sequences with >60% sequence identity were modeled as endo-inulinase with higher QMEAN Z Score. The evaluations and validations of these 61 selected models for different structural and functional qualities revealed that 60 models belonging to 22 fungal species exhibited native like structure and unique motifs and residues as that of the reference endo-inulinase. Further, these models also exhibited similar kind of interaction between the active site around the conserved glutamate residue and substrate as that of the reference endo-inulinase. In conclusion, based on the current study, 22 fungal species could be identified as endo-inulinase producer. Nevertheless, further biological assessment of their capability for producing endo-inulinase is imminent if they are to be used for commercial endo-inulinase production for application in FOS industry.
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Affiliation(s)
- Jayaram Chikkerur
- Animal Nutrition Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka, India
- Department of Microbiology, School of Sciences, Jain University, Bengaluru, Karnataka, India
- * E-mail:
| | - Ashis Kumar Samanta
- Animal Nutrition Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka, India
| | - Arindam Dhali
- Bioenergetics and Environmental Sciences Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka, India
| | - Atul Purushottam Kolte
- Animal Nutrition Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka, India
| | - Sohini Roy
- Animal Nutrition Division, ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, Karnataka, India
- Department of Microbiology, School of Sciences, Jain University, Bengaluru, Karnataka, India
| | - Pratheepa Maria
- Division of Genomic Resources, ICAR-National Bureau of Agricultural Insect Resources, Bengaluru, Karnataka, India
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Singh RS, Chauhan K, Pandey A, Larroche C. Biocatalytic strategies for the production of high fructose syrup from inulin. BIORESOURCE TECHNOLOGY 2018; 260:395-403. [PMID: 29636277 DOI: 10.1016/j.biortech.2018.03.127] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
The consumption of natural and low calorie sugars has increased enormously from the past few decades. To fulfil the demands, the production of healthy sweeteners as an alternative to sucrose has recently received considerable interest. Fructose is the most health beneficial and safest sugar amongst them. It is generally recognised as safe (GRAS) and has become an important food ingredient due its sweetening and various health promising functional properties. Commercially, high fructose syrup is prepared from starch by multienzymatic process. Single-step enzymatic hydrolysis of inulin using inulinase has emerged as an alternate to the conventional approach to reduce complexity, time and cost. The present review, outlines the enzymatic strategies used for the preparation of high fructose syrup from inulin/inulin-rich plant materials in batch and continuous systems, and its conclusions.
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Affiliation(s)
- R S Singh
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala 147 002, Punjab, India.
| | - Kanika Chauhan
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala 147 002, Punjab, India
| | - Ashok Pandey
- CSIR-Indian Institute of Toxicology Research, 31 Marg, 226 001 Lucknow, India
| | - Christian Larroche
- Université Clermont Auvergne, Institut Pascal, UMR, CNRS 6602, and Labex, IMobS3, 4 Avenue Blaise Pascal, TSA 60026, CS 60026, F-63178 Aubiere Cedex, France
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Orikasa Y, Oda Y, Ohwada T. Identification of sucA, Encoding β-Fructofuranosidase, in Rhizopus microsporus. Microorganisms 2018; 6:E26. [PMID: 29534041 PMCID: PMC5874640 DOI: 10.3390/microorganisms6010026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/05/2018] [Accepted: 03/13/2018] [Indexed: 01/30/2023] Open
Abstract
Rhizopus microsporus NBRC 32995 was found to hydrolyze fructooligosaccharides (FOS), as well as sucrose, almost completely into monosaccharides through the production of sufficient amounts of organic acids, indicating that the complete hydrolysis of FOS was caused by the secretion of β-fructofuranosidase from fungal cells. Thus, the sucA gene, encoding a β-fructofuranosidase, was amplified by degenerate PCR, and its complete nucleotide sequence was determined. The total length of the sucA gene was 1590 bp, and the SucA protein of R. microsporus NBRC 32995 belonged to clade VIa, which also contains Rhizopus delemar and is closely related to Saccharomycotina, a subdivision of the Ascomycota.
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Affiliation(s)
- Yoshitake Orikasa
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.
| | - Yuji Oda
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.
| | - Takuji Ohwada
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan.
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15
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Kowalska A, Antecka A, Owczarz P, Bizukojć M. Inulinolytic activity of broths of Aspergillus niger ATCC 204447 cultivated in shake flasks and stirred tank bioreactor. Eng Life Sci 2017; 17:1006-1020. [PMID: 32624851 DOI: 10.1002/elsc.201600247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/03/2017] [Accepted: 04/18/2017] [Indexed: 12/20/2022] Open
Abstract
It is the first detailed study of an inulinolytic fungus Aspergillus niger ATCC 204447 since its discovery, covering submerged cultivations both in shake flasks and a stirred tank bioreactor. Various carbon sources were applied to induce the inulinolytic activity in shake flask cultures. The highest volumetric and specific (per gram of biomass) activities (respectively 0.68 U/mL and 184 U g/X) were observed for the initial inulin and sucrose concentrations equal to 20 g/L. The fungus grew as large (>3 mm) spherical pellets. The influence of inoculum density and application of microparticle-enhanced cultivation (MPEC) were studied in the batch bioreactor cultivations. Inoculum density moderately affected the inulinolytic activities, whose highest values were 0.7 U/mL and 165 U g/X at the lowest studied spore density of 3.33·108 L-1. Dispersed hyphae evolved in the bioreactor made the broth difficult to aerate due to high apparent viscosity (exceeding 200 Pa sn at shear rate about 0.05 s-1) and shear thinned properties (flow behavior index below 0.2). In MPEC (10 μm talc microparticles) the pellets of diameter between 1 and 2 mm were formed, which facilitated the aeration of the broth and increased the specific inulinolytic activity 3.5-fold.
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Affiliation(s)
- Anna Kowalska
- Department of Bioprocess Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
| | - Anna Antecka
- Department of Bioprocess Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
| | - Piotr Owczarz
- Department of Chemical Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
| | - Marcin Bizukojć
- Department of Bioprocess Engineering Faculty of Process and Environmental Engineering Lodz University of Technology Lodz Poland
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Hughes SR, Qureshi N, López-Núñez JC, Jones MA, Jarodsky JM, Galindo-Leva LÁ, Lindquist MR. Utilization of inulin-containing waste in industrial fermentations to produce biofuels and bio-based chemicals. World J Microbiol Biotechnol 2017; 33:78. [PMID: 28341907 DOI: 10.1007/s11274-017-2241-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 03/06/2017] [Indexed: 12/18/2022]
Abstract
Inulins are polysaccharides that belong to an important class of carbohydrates known as fructans and are used by many plants as a means of storing energy. Inulins contain 20 to several thousand fructose units joined by β-2,1 glycosidic bonds, typically with a terminal glucose unit. Plants with high concentrations of inulin include: agave, asparagus, coffee, chicory, dahlia, dandelion, garlic, globe artichoke, Jerusalem artichoke, jicama, onion, wild yam, and yacón. To utilize inulin as its carbon and energy source directly, a microorganism requires an extracellular inulinase to hydrolyze the glycosidic bonds to release fermentable monosaccharides. Inulinase is produced by many microorganisms, including species of Aspergillus, Kluyveromyces, Penicillium, and Pseudomonas. We review various inulinase-producing microorganisms and inulin feedstocks with potential for industrial application as well as biotechnological efforts underway to develop sustainable practices for the disposal of residues from processing inulin-containing crops. A multi-stage biorefinery concept is proposed to convert cellulosic and inulin-containing waste produced at crop processing operations to valuable biofuels and bioproducts using Kluyveromyces marxianus, Yarrowia lipolytica, Rhodotorula glutinis, and Saccharomyces cerevisiae as well as thermochemical treatments.
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Affiliation(s)
- Stephen R Hughes
- Renewable Product Technology Research Unit, United States Department of Agriculture (USDA), Agricultural Research Service (ARS), National Center for Agricultural Utilization Research (NCAUR), 1815 North University Street, Peoria, IL, 61604, USA.
| | - Nasib Qureshi
- Bioenergy Research Unit, USDA, ARS, NCAUR, 1815 North University Street, Peoria, IL, 61604, USA
| | - Juan Carlos López-Núñez
- National Coffee Research Centre (Cenicafe), National Federation of Coffee Growers of Colombia (FNC), Cenicafé Planalto Km 4 vía Antigua Chinchiná, Manizales, Caldas, Colombia
| | - Marjorie A Jones
- Department of Chemistry, Illinois State University, Normal, IL, 61790, USA
| | - Joshua M Jarodsky
- Department of Chemistry, Illinois State University, Normal, IL, 61790, USA
| | - Luz Ángela Galindo-Leva
- National Coffee Research Centre (Cenicafe), National Federation of Coffee Growers of Colombia (FNC), Cenicafé Planalto Km 4 vía Antigua Chinchiná, Manizales, Caldas, Colombia
| | - Mitchell R Lindquist
- Renewable Product Technology Research Unit, United States Department of Agriculture (USDA), Agricultural Research Service (ARS), National Center for Agricultural Utilization Research (NCAUR), 1815 North University Street, Peoria, IL, 61604, USA
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Singh RS, Chauhan K. Inulinase production from a new inulinase producer, Penicillium oxalicum BGPUP-4. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2016.10.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Singh RS, Singh RP, Kennedy JF. Recent insights in enzymatic synthesis of fructooligosaccharides from inulin. Int J Biol Macromol 2016; 85:565-72. [DOI: 10.1016/j.ijbiomac.2016.01.026] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/04/2016] [Accepted: 01/06/2016] [Indexed: 01/11/2023]
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