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Behram T, Pervez S, Nawaz MA, Ullah R, Khan AA, Ahmad B, Alanzai AM, Ahmad A, Jan AK, Rahman HU, Jamal M, Tour jan, Mohyuddin A, Khan NM, Ahmad S. Synthesis and analysis of silica nanocarriers for pectinase immobilization: Enhancing enzymatic stability for continuous industrial applications. Heliyon 2024; 10:e23549. [PMID: 38169865 PMCID: PMC10758773 DOI: 10.1016/j.heliyon.2023.e23549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024] Open
Abstract
Pectinolytic enzymes are among the important group of industrial enzymes that have wide applications in different food industries. In this study, pectinase-based silica nanocarriers were synthesized using co-precipitation and cross-linking techniques. The resulting silica nanoparticles were investigated using scanning electron microscopy (SEM), energy-dispersive electron microscopy (EDEX), and X-ray diffraction (XRD) for determination of its morphology, elemental composition, and crystalline pattern. Under the optimal immobilization conditions like 1.5 % glutaraldehyde, 3000 IU/mg pectinase concentration, 90 min immobilization time and 40 °C immobilization temperature, pectinase showed maximum immobilization yield. The immobilization of pectinase onto the silica nanocarriers led to enhanced catalytic characteristics, displaying higher enzymatic activity across various temperature and pH levels compared to soluble pectinase. Moreover, the immobilization substantially improved the temperature stability of pectinase, exhibiting 100 % of its initial activity even after 120 h of pre-incubation at 50 °C. Additionally, the silica nanocarrier pectinase retained 100 % of its original activity even after being reused 10 times in a single batch of reactions. These findings indicate that the immobilization of silica nanocarriers effectively enhances pectinase's industrial capabilities, making it economically feasible for industrial use and an efficient system for various biotechnological applications.
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Affiliation(s)
- Tayyaba Behram
- Department of Biotechnology, Shaheed Benazir Bhutto University Sheringal Dir (Upper), KPK, Pakistan
| | - Sidra Pervez
- Department of Biochemistry, Shaheed Benazir Bhutto Women University Peshawar, KPK, Pakistan
| | - Muhammad Asif Nawaz
- Department of Biotechnology, Shaheed Benazir Bhutto University Sheringal Dir (Upper), KPK, Pakistan
| | - Rahim Ullah
- Department of Biotechnology, Shaheed Benazir Bhutto University Sheringal Dir (Upper), KPK, Pakistan
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Bushra Ahmad
- Department of Biochemistry, Shaheed Benazir Bhutto Women University Peshawar, KPK, Pakistan
| | - Amer M. Alanzai
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Asrar Ahmad
- Center for Sickle Cell Disease, College of Medicine, Howard University Washington DC, USA
| | - Abdul Khaliq Jan
- Department of Chemistry, Shaheed Benzir Bhutto University Sheringal Dir (Upper), Pakistan
| | - Haneef Ur Rahman
- Department of Chemistry, University of Turbat, Kech Baluchistan, Pakistan
| | - Muhsin Jamal
- Department of Microbiology, Abdul Wali Khan University Mardan, Pakistan
| | - Tour jan
- Department of Botany, University of Malakand, Chakdara, Pakistan
| | - Abrar Mohyuddin
- Department of Chemistry, The Emerson University Multan, Pakistan
| | - Nasir Mehmood Khan
- Department of Agriculture, Shaheed Benazir Bhutto University Sheringal Dir (Upper), KPK, Pakistan
| | - Shujaat Ahmad
- Department of Pharmacy, Shaheed Benazir Bhutto University Sheringal Dir (Upper), KPK, Pakistan
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Fathy MM, Hassan AA, Elsayed AA, Fahmy HM. Controlled release of silica-coated insulin-loaded chitosan nanoparticles as a promising oral administration system. BMC Pharmacol Toxicol 2023; 24:21. [PMID: 36998008 PMCID: PMC10064556 DOI: 10.1186/s40360-023-00662-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 03/10/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND Oral insulin administration has recently become one of the most exciting research subjects. Different approaches have been carried out to get an effective oral insulin delivery system using nanotechnology. The development of a delivery system that overcomes the difficulties of oral insulin administration, achieving high stability and minimal side effects, is still an urgent need. Therefore, this study is considered one of the efforts to design a new prospective drug delivery nano-composite (silica-coated chitosan-dextran sulfate nanoparticles). METHODS Chitosan-dextran sulfate nanoparticles (CS-DS NPs) were prepared via a complex coacervation method and then coated with silica. Uncoated and silica-coated CS-DS NPs were physically characterized via different techniques. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analysis, and atomic force microscopy (AFM) have been used to investigate the chemical elements, size, morphology, and surface properties of the prepared formulations. Differential scanning calorimetry (DSC) to assess the thermal properties of formed nano-formulations. Fourier transform infrared (FT-IR) spectroscopy investigated the silica coat and chitosan interaction. The encapsulation efficiency was evaluated using high-performance liquid chromatography (HPLC) analysis. The insulin release profile of nano-formulations was performed with and without silica coat at two different pHs (5.5,7), nearly simulating the environment of the gastrointestinal tract (GIT). RESULTS The silica-coated CS-DS NPs revealed interesting physicochemical properties exemplified by suitable core particle size obtained by TEM images (145.31 ± 33.15 nm), hydrodynamic diameter (210 ± 21 nm), high stability indicated by their zeta potential value (-32 ± 3.2 mV), and adequate surface roughness assessed by AFM. The encapsulation efficiency of insulin-loaded chitosan nanoparticles (ICN) was (66.5%) higher than that of insulin-chitosan complex nanoparticles (ICCN). The silica-coated ICN demonstrated a controlled insulin release profile at pHs (5.5 and 7) compared with uncoated ICN. CONCLUSION The silica-coated ICN can be an efficient candidate as a desired oral delivery system, overcoming the common obstacles of peptides and proteins delivery and achieving high stability and controlled release for further applications.
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Affiliation(s)
- Mohamed M Fathy
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Asmaa A Hassan
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Anwar A Elsayed
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Heba M Fahmy
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt.
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Behram T, Pervez S, Nawaz MA, Ahmad S, Jan AU, Rehman HU, Ahmad S, Khan NM, Khan FA. Development of Pectinase Based Nanocatalyst by Immobilization of Pectinase on Magnetic Iron Oxide Nanoparticles Using Glutaraldehyde as Crosslinking Agent. Molecules 2023; 28:molecules28010404. [PMID: 36615596 PMCID: PMC9823745 DOI: 10.3390/molecules28010404] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/07/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
To increase its operational stability and ongoing reusability, B. subtilis pectinase was immobilized on iron oxide nanocarrier. Through co-precipitation, magnetic iron oxide nanoparticles were synthesized. Scanning electron microscopy (SEM) and energy dispersive electron microscopy (EDEX) were used to analyze the nanoparticles. Pectinase was immobilized using glutaraldehyde as a crosslinking agent on iron oxide nanocarrier. In comparison to free pectinase, immobilized pectinase demonstrated higher enzymatic activity at a variety of temperatures and pH levels. Immobilization also boosted pectinase's catalytic stability. After 120 h of pre-incubation at 50 °C, immobilized pectinase maintained more than 90% of its initial activity due to the iron oxide nanocarrier, which improved the thermal stability of pectinase at various temperatures. Following 15 repetitions of enzymatic reactions, immobilized pectinase still exhibited 90% of its initial activity. According to the results, pectinase's catalytic capabilities were enhanced by its immobilization on iron oxide nanocarrier, making it economically suitable for industrial use.
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Affiliation(s)
- Tayyaba Behram
- Department of Biotechnology, Shaheed Benazir Bhutto University, Sheringal Dir Upper 18000, Pakistan
| | - Sidra Pervez
- Department of Biochemistry, Shaheed Benazir Bhutto Women University, Peshawar 25000, Pakistan
| | - Muhammad Asif Nawaz
- Department of Biotechnology, Shaheed Benazir Bhutto University, Sheringal Dir Upper 18000, Pakistan
- Correspondence: or
| | - Shujaat Ahmad
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal Dir Upper 18000, Pakistan
| | - Amin Ullah Jan
- Department of Biotechnology, Shaheed Benazir Bhutto University, Sheringal Dir Upper 18000, Pakistan
| | - Haneef Ur Rehman
- Department of Natural and Basic Sciences, University of Turbat, Kech, Turbat 92600, Pakistan
| | - Shahbaz Ahmad
- Department of Biological Science and Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Nasir Mehmood Khan
- Department of Agriculture, Shaheed Benazir Bhutto University, Sheringal Dir Upper 18000, Pakistan
| | - Farman Ali Khan
- Department of Chemistry, Shaheed Benazir Bhutto University, Sheringal Dir Upper 18000, Pakistan
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Azimi SZ, Hosseini SS, Khodaiyan F. Continuous clarification of grape juice using a packed bed bioreactor including pectinase enzyme immobilized on glass beads. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.100877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Immobilization of Purified Pectin Lyase from Acinetobacter calcoaceticus onto Magnetic Carboxymethyl Cellulose Nanoparticles and Its Usability in Food Industry. J CHEM-NY 2020. [DOI: 10.1155/2020/4791408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An important component of the pectinase enzyme complex is pectin lyase (polymethylgalacturonate lyase; EC 4.2.2.10). In this study, extracellular pectin lyase enzyme was produced from Acinetobacter calcoaceticus bacteria. Pectin lyase was then purified using three-phase precipitation (TPP) technique with 25.5% yield. The pectin lyase was immobilized covalently via the L-glutaraldehyde spacer to the carboxymethyl cellulose. The immobilized pectin lyase was magnetized using Fe3O4 nanoparticles. Purified pectin lyase was connected to magnetized support material after 90 min at the rate of 80%. The most appropriate immobilization conditions were determined as pH 8 and 30°C. By characterizing the free and immobilized enzyme, KM, Vmax, and optimum pH and optimum temperature values were determined. It was optimum pH 8 and temperature 50°C for both free and immobilized pectin lyase. The structural characterization of the immobilized pectin lyase modified with Fe3O4 nanoparticles was carried out by SEM, FT-IR, and XRD chromatographic analyses. At the end of the study, free and immobilized enzymes were used for purification of some fruit juices and results were compared.
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Sahin S, Ozmen I. Immobilization of pectinase on Zr‐treated pumice for fruit juice industry. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14661] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Selmihan Sahin
- Arts and Sciences Faculty, Department of Chemistry Suleyman Demirel University Isparta Turkey
| | - Ismail Ozmen
- Arts and Sciences Faculty, Department of Chemistry Suleyman Demirel University Isparta Turkey
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Li H, Tian H, Liu C, Lu G, Wang Z, Tan X, Jia H, Megharaj M, He W. The effect of arsenic on soil intracellular and potential extracellular β-glucosidase differentiated by chloroform fumigation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 727:138659. [PMID: 32325318 DOI: 10.1016/j.scitotenv.2020.138659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
Arsenic (As) contamination of soil is a global issue of serious ecological and human health concern. For better use of soil enzymes as biological indicators of As pollution, the response of soil β-glucosidase in different pools of soil (total, intracellular and potential extracellular) to As(V) stress was investigated. Chloroform fumigation method was employed to distinguish the intracellular and potential extracellular β-glucosidase in three soils. The intracellular and potential extracellular β-glucosidase accounted about 79% and 21% of the total β-glucosidase activity in the tested soils. Moreover, it was found that the response of these three enzyme pools to As(V) pollution was different. Under the stress of 400 mg kg-1 As(V), the β-glucosidase activities decreased by 69%, 79%, and 28% for the total, intracellular and potential extracellular pools, respectively. The calculated median ecological dose (ED50) showed the highest value for potential extracellular β-glucosidase (19.55-27.63 mg kg-1 for total, 18.49-27.42 mg kg-1 for intracellular, and 32.27-52.69 mg kg-1 for potential extracellular β-glucosidase). As(V) exhibited an uncompetitive inhibition for total and intracellular β-glucosidase and non-competitive inhibition for potential extracellular enzyme. The inhibition constant (Kiu) is biggest for potential extracellular β-glucosidase among the three enzyme pools (0.61-0.79 mmol L-1 for total, 0.34-0.36 mmol L-1 for intracellular, and 4.01-23.90 mmol L-1 for potential extracellular β-glucosidase). Thus, compared to potential extracellular β-glucosidase, the total and intracellular β-glucosidases are more suitable for their use as sensitive indicators of As(V) pollution.
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Affiliation(s)
- Huayong Li
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Haixia Tian
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Chaoyang Liu
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Guannan Lu
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Ziquan Wang
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Xiangping Tan
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Hanzhong Jia
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Wenxiang He
- College of Natural Resources and Environment, Northwest A&F University, Key Laboratory of Plant Nutrition and Agro-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China.
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Immobilization of Purified Pectin Lyase from Pseudomonas putida onto Magnetic Lily Flowers ( Lilium candidum L.) Nanoparticles and Applicability in Industrial Processes. Molecules 2020; 25:molecules25112671. [PMID: 32526868 PMCID: PMC7321098 DOI: 10.3390/molecules25112671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 11/19/2022] Open
Abstract
Pectinases are an important class of enzymes distributed in many higher plants and microorganisms. One of these enzymes is pectin lyase which has an important role in industrial applications such as clarification of fruit juices. Pectin lyase was purified with 73% yield from Pseudomonas putida bacteria and was 220.7-fold using three phase precipitation technique. Molecular weight of purified pectin lyase was determined as 32.88 kDa with SDS-polyacrylamide gel electrophoresis. The pectin lyase was immobilized covalently via the L-glutaraldehyde spacer to the cellulosic structures of lily flowers (Lilium candidum L.). The immobilized enzyme was then magnetized by modifying with γ-Fe3O4 nanoparticles and determined the most appropriate immobilization conditions as pH 6 and 30 °C. Purified pectin lyase was connected to magnetized support material after 60 min at the rate of 86.4%. The optimum pH and temperatures for the free and immobilized pectin lyase was found to be 6.0 and 40 °C. pH and thermal stabilities of the free and immobilized pectin lyase enzyme have been preserved at high-low temperatures and pH. The structural characterization of the immobilized pectin lyase was performed by SEM, FT-IR, and XRD chromatographic analyses and it was observed that the support materials structure was appropriated to immobilization with pectin lyase and to modify with Fe3O4 nanoparticles.
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Hosseini SS, Khodaiyan F, E. Mousavi SM, Azimi SZ, Gharaghani M. Immobilization of pectinase on the glass bead using polyaldehyde kefiran as a new safe cross-linker and its effect on the activity and kinetic parameters. Food Chem 2020; 309:125777. [DOI: 10.1016/j.foodchem.2019.125777] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 09/05/2019] [Accepted: 10/21/2019] [Indexed: 12/19/2022]
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Ottone C, Romero O, Aburto C, Illanes A, Wilson L. Biocatalysis in the winemaking industry: Challenges and opportunities for immobilized enzymes. Compr Rev Food Sci Food Saf 2020; 19:595-621. [PMID: 33325181 DOI: 10.1111/1541-4337.12538] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/02/2019] [Accepted: 12/17/2019] [Indexed: 12/18/2022]
Abstract
Enzymes are powerful catalysts already being used in a large number of industrial processes. Impressive advantages in enzyme catalysts improvement have occurred in recent years aiming to improve their performance under harsh operation conditions far away from those of their cellular habitat. Production levels of the winemaking industry have experienced a remarkable increase, and technological innovations have been introduced for increasing the efficiency at different process steps or for improving wine quality, which is a key issue in this industry. Enzymes, such as pectinases and proteases, have been traditionally used, and others, such as glycosidases, have been more recently introduced in the modern wine industry, and many dedicated studies refer to the improvement of enzyme performance under winemaking conditions. Within this framework, a thorough review on the role of enzymes in winemaking is presented, with special emphasis on the use of immobilized enzymes as a significant strategy for catalyst improvement within an industry in which enzymes play important roles that are to be reinforced paralleling innovation.
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Affiliation(s)
- Carminna Ottone
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Oscar Romero
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Carla Aburto
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Andrés Illanes
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Lorena Wilson
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
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Dal Magro L, de Moura KS, Backes BE, de Menezes EW, Benvenutti EV, Nicolodi S, Klein MP, Fernandez-Lafuente R, Rodrigues RC. Immobilization of pectinase on chitosan-magnetic particles: Influence of particle preparation protocol on enzyme properties for fruit juice clarification. ACTA ACUST UNITED AC 2019; 24:e00373. [PMID: 31516853 PMCID: PMC6728273 DOI: 10.1016/j.btre.2019.e00373] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/19/2019] [Accepted: 08/22/2019] [Indexed: 12/16/2022]
Abstract
Magnetic-chitosan particles were prepared following three different protocols enabling the preparation of particles with different sizes - nano (Nano-CMag, Micro (Micro-CMag) and Macro (Macro-CMag) - and used for pectinase immobilization and clarification of grape, apple and orange juices. The particle size had a great effect in the kinetic parameters, Nano-CMag biocatalyst presented the highest Vmax value (78.95 mg. min-1), followed by Micro-CMag and Macro-CMag, with Vmax of 57.20 mg.min-1 and 46.03 mg.min-1, respectively. However, the highest thermal stability was achieved using Macro-CMag, that was 8 and 3-times more stable than Nano-CMag and Micro-CMag biocatalysts, respectively. Pectinase immobilized on Macro-CMag kept 85% of its initial activity after 25 batch cycles in orange juice clarification. These results suggested that the chitosan magnetic biocatalysts presented great potential application as clarifying catalysts for the fruit juice industry and the great importance of the chitosan particles preparation on the final biocatalyst properties.
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Affiliation(s)
- Lucas Dal Magro
- Biotechnology, Bioprocess and Biocatalysis Group, Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, P.O. Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
- Department of Biocatalysis, ICP-CSIC, Campus UAM-CSIC, Cantoblanco, ZC 28049, Madrid, Spain
| | - Kelly Silva de Moura
- Biotechnology, Bioprocess and Biocatalysis Group, Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, P.O. Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Betina Elys Backes
- Biotechnology, Bioprocess and Biocatalysis Group, Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, P.O. Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Eliana Weber de Menezes
- Laboratory of Solids and Surfaces, Institute of Chemistry, UFRGS, P.O. Box 15003, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Edilson Valmir Benvenutti
- Laboratory of Solids and Surfaces, Institute of Chemistry, UFRGS, P.O. Box 15003, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Sabrina Nicolodi
- Magnetism Laboratory, Institute of Physics, Federal University of Rio Grande do Sul, P.O. Box 15051, ZC 91501-970, Porto Alegre, RS, Brazil
| | - Manuela P. Klein
- Department of Nutrition, Federal University of Health Sciences of Porto Alegre (UFCSPA), ZC 90050-170, Porto Alegre, RS, Brazil
| | - Roberto Fernandez-Lafuente
- Department of Biocatalysis, ICP-CSIC, Campus UAM-CSIC, Cantoblanco, ZC 28049, Madrid, Spain
- Corresponding authors.
| | - Rafael C. Rodrigues
- Biotechnology, Bioprocess and Biocatalysis Group, Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, P.O. Box 15090, ZC 91501-970, Porto Alegre, RS, Brazil
- Corresponding authors.
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Dong X, Ma Y, Hou C, Zhang B, Zhang H, Zhang Q. Preparation of pH and temperature dual‐sensitive molecularly imprinted polymers based on chitosan and
N
‐isopropylacrylamide for recognition of bovine serum albumin. POLYM INT 2019. [DOI: 10.1002/pi.5786] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xiangzhi Dong
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
- College of Environmental and Chemical Engineering, Xi'an Polytechnic University Xi'an China
| | - Yong Ma
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
| | - Chunping Hou
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
| | - Baoliang Zhang
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
| | - Hepeng Zhang
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
| | - Qiuyu Zhang
- Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Natural and Applied Sciences, Northwestern Polytechnical University Xi'an China
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Verma ML, Kumar S, Das A, Randhawa JS, Chamundeeswari M. Enzyme Immobilization on Chitin and Chitosan-Based Supports for Biotechnological Applications. SUSTAINABLE AGRICULTURE REVIEWS 35 2019. [DOI: 10.1007/978-3-030-16538-3_4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Dal Magro L, Silveira VC, de Menezes EW, Benvenutti EV, Nicolodi S, Hertz PF, Klein MP, Rodrigues RC. Magnetic biocatalysts of pectinase and cellulase: Synthesis and characterization of two preparations for application in grape juice clarification. Int J Biol Macromol 2018; 115:35-44. [DOI: 10.1016/j.ijbiomac.2018.04.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/20/2018] [Accepted: 04/05/2018] [Indexed: 10/17/2022]
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16
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Preparation, characterization and catalytic behavior of pectinase covalently immobilized onto sodium alginate/graphene oxide composite beads. Food Chem 2018; 253:185-193. [DOI: 10.1016/j.foodchem.2018.01.157] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 12/27/2017] [Accepted: 01/23/2018] [Indexed: 01/23/2023]
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17
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Ali F, Khan SB, Kamal T, Alamry KA, Bakhsh EM, Asiri AM, Sobahi TR. Synthesis and characterization of metal nanoparticles templated chitosan-SiO2 catalyst for the reduction of nitrophenols and dyes. Carbohydr Polym 2018; 192:217-230. [DOI: 10.1016/j.carbpol.2018.03.029] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 02/26/2018] [Accepted: 03/13/2018] [Indexed: 12/15/2022]
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Mahmoud KF, Abo-Elmagd HI, Housseiny MM. Micro- and nano-capsulated fungal pectinase with outstanding capabilities of eliminating turbidity in freshly produced juice. FOOD SCI TECHNOL INT 2018; 24:330-340. [PMID: 29357691 DOI: 10.1177/1082013217753898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The present study aimed to compare the pectinase forms produced from Trichoderma viride-free, micro-capsule, and nano-capsule-in sodium alginate to analyze the pectin that causes the turbidity of orange juice. This was performed along with an estimation of viscosity, residual of pectin, and turbidity. The extracted and purified enzyme was 24.35-fold better than that of the crude enzyme. After application of free one, it loses most of the activity on low degrees of acidity and remains constant on the temperatures of pasteurization. Therefore, the tested enzyme was encapsulated by two different ways using the same polymer. The morphology of the three pectinase forms was obtained by transmission electron microscopy, and the micrographs clearly showed the pores on the surface of sodium alginate matrix after encapsulation. The size of the wall (sodium alginate) ranged from 3.24 to 3.76 µm diameter but was 3.15 µm for core of enzyme. Micro-capsuled and nano-capsuled pectinase can be used in the hydrolysis of pectic substances in orange juice with natural ways and maintaining the quality of final product. Consequently, the cost of juice clarifying can be reduced due to reusing the enzyme several times.
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Affiliation(s)
- Khaled F Mahmoud
- 1 Food Technology Department, National Research Center, Giza, Egypt
| | - Heba I Abo-Elmagd
- 2 Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Cairo, Egypt.,3 Department of Basic Sciences, Deanship of Preparatory year and Supporting Studies, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Manal M Housseiny
- 2 Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, Cairo, Egypt
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Charoenwongpaiboon T, Wangpaiboon K, Pichyangkura R, Prousoontorn MH. Highly porous core–shell chitosan beads with superb immobilization efficiency forLactobacillus reuteri121 inulosucrase and production of inulin-type fructooligosaccharides. RSC Adv 2018; 8:17008-17016. [PMID: 35540533 PMCID: PMC9080446 DOI: 10.1039/c8ra02241k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 02/05/2019] [Accepted: 04/29/2018] [Indexed: 01/08/2023] Open
Abstract
Inulosucrase immobilized on chitosan bead in core–shell format has proved to be an attractive biocatalyst for the synthesis of inulin-type fructooligosaccharides.
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Affiliation(s)
| | - Karan Wangpaiboon
- Department of Biochemistry
- Faculty of Science
- Chulalongkorn University
- Bangkok 10330
- Thailand
| | - Rath Pichyangkura
- Department of Biochemistry
- Faculty of Science
- Chulalongkorn University
- Bangkok 10330
- Thailand
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20
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Affiliation(s)
- Kalyani Prusty
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha, India
| | - Sarat K. Swain
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha, India
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21
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A reusable multipurpose magnetic nanobiocatalyst for industrial applications. Int J Biol Macromol 2017; 103:16-24. [DOI: 10.1016/j.ijbiomac.2017.05.029] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/04/2017] [Accepted: 05/05/2017] [Indexed: 11/22/2022]
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22
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Preparation and characterization of polymer-coated mesoporous silica nanoparticles and their application in Subtilisin immobilization. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0045-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Role of Anionic Polysaccharide (Alginate) on Activity, Stability and Recycling Efficiency of Bacterial Endo (1→4) β-d-Glucanase of GH12 Family. Catal Letters 2017. [DOI: 10.1007/s10562-017-2074-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Improvement of activity, thermo-stability and fruit juice clarification characteristics of fungal exo-polygalacturonase. Int J Biol Macromol 2017; 95:974-984. [DOI: 10.1016/j.ijbiomac.2016.10.086] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/21/2016] [Accepted: 10/24/2016] [Indexed: 11/18/2022]
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25
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Recombinant Thermostable Thermomonospora fusca TF Endo-xylanase A and Its Immobilization on Modified Mesoporous SiO2 Microspheres for Manufacturing Xylooligosaccharides. Catal Letters 2017. [DOI: 10.1007/s10562-017-1979-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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26
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Cerreti M, Markošová K, Esti M, Rosenberg M, Rebroš M. Immobilisation of pectinases into PVA gel for fruit juice application. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13309] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martina Cerreti
- Department for Innovation in Biological; Agro-Food and Forest Systems; University of Tuscia; San Camillo de Lellis snc Viterbo 01100 Italy
| | - Kristína Markošová
- Institute of Biotechnology; Faculty of Chemical and Food Technology; Slovak University of Technology; Radlinského 9 Bratislava 812 37 Slovakia
| | - Marco Esti
- Department for Innovation in Biological; Agro-Food and Forest Systems; University of Tuscia; San Camillo de Lellis snc Viterbo 01100 Italy
| | - Michal Rosenberg
- Institute of Biotechnology; Faculty of Chemical and Food Technology; Slovak University of Technology; Radlinského 9 Bratislava 812 37 Slovakia
| | - Martin Rebroš
- Institute of Biotechnology; Faculty of Chemical and Food Technology; Slovak University of Technology; Radlinského 9 Bratislava 812 37 Slovakia
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27
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Alagöz D, Tükel SS, Yildirim D. Immobilization of pectinase on silica-based supports: Impacts of particle size and spacer arm on the activity. Int J Biol Macromol 2016; 87:426-32. [DOI: 10.1016/j.ijbiomac.2016.03.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 10/22/2022]
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28
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Optimizing the preparation conditions and characterization of a stable and recyclable cross-linked enzyme aggregate (CLEA)-protease. BIORESOUR BIOPROCESS 2016. [DOI: 10.1186/s40643-015-0081-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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29
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Synthesis of a hybrid polymer-inorganic biomimetic support incorporating in situ pectinase from Aspergillus niger ATCC 9642. Bioprocess Biosyst Eng 2015; 38:1569-77. [PMID: 25894295 DOI: 10.1007/s00449-015-1399-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 04/06/2015] [Indexed: 11/27/2022]
Abstract
The hybrid alginate/gelatin/calcium oxalate (AGOCa) support was successfully synthesized through the biomimetic mineralization method for immobilization in situ of a pectinolytic extract from Aspergillus niger ATCC 9642 via entrapment technique. The efficiency of immobilization reached 72.7%. Sodium oxalate buffer (100 mM, pH 5.5) was selected as adjuvant of the immobilization process by allowing the formation of a calcified shell around the calcium alginate capsule, significantly increasing the stability to storage, thermal and recycling of the enzymatic immobilized pectinolytic extract. The pH and temperature for maximum activity were from 5.0 to 6.0 and 60 to 80 °C, respectively. The new hybrid support can be a potential alternative to obtain immobilized pectinases with properties for advantageous industrial applications.
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Ramirez HL, Gómez Brizuela L, Úbeda Iranzo J, Arevalo-Villena M, Briones Pérez AI. Pectinase Immobilization on a Chitosan-Coated Chitin Support. J FOOD PROCESS ENG 2015. [DOI: 10.1111/jfpe.12203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Juan Úbeda Iranzo
- Department of Analytical Chemistry and Food Technology; University of Castilla La Mancha; Av. Camilo Jose Cela, 10 13071 Ciudad Real Spain
| | - María Arevalo-Villena
- Department of Analytical Chemistry and Food Technology; University of Castilla La Mancha; Av. Camilo Jose Cela, 10 13071 Ciudad Real Spain
| | - Ana Isabel Briones Pérez
- Department of Analytical Chemistry and Food Technology; University of Castilla La Mancha; Av. Camilo Jose Cela, 10 13071 Ciudad Real Spain
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31
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Immobilization of Aspergillus niger xylanase A on Fe3O4-coated chitosan magnetic nanoparticles for xylooligosaccharide preparation. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2014.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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32
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Purification and characterisation of thermo-alkaline pectinase enzyme from Hylocereus polyrhizus. Eur Food Res Technol 2014. [DOI: 10.1007/s00217-014-2188-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Immobilization of pectin degrading enzyme from Bacillus licheniformis KIBGE IB-21 using agar-agar as a support. Carbohydr Polym 2014; 102:622-6. [DOI: 10.1016/j.carbpol.2013.11.073] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 11/24/2013] [Accepted: 11/30/2013] [Indexed: 11/19/2022]
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34
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Seenuvasan M, Kumar KS, Malar CG, Preethi S, Kumar MA, Balaji N. Characterization, Analysis, and Application of Fabricated Fe3O4-Chitosan-Pectinase Nanobiocatalyst. Appl Biochem Biotechnol 2014; 172:2706-19. [DOI: 10.1007/s12010-014-0725-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 01/02/2014] [Indexed: 11/28/2022]
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35
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Liu J, Wang Q, Fan XR, Sun XJ, Huang PH. Layer-by-Layer Self-Assembly Immobilization of Catalases on Wool Fabrics. Appl Biochem Biotechnol 2013; 169:2212-22. [DOI: 10.1007/s12010-013-0093-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 01/01/2013] [Indexed: 11/30/2022]
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36
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Seenuvasan M, Malar CG, Preethi S, Balaji N, Iyyappan J, Kumar MA, Kumar KS. Fabrication, characterization and application of pectin degrading Fe3O4-SiO2 nanobiocatalyst. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2273-9. [PMID: 23498258 DOI: 10.1016/j.msec.2013.01.050] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 12/21/2012] [Accepted: 01/22/2013] [Indexed: 10/27/2022]
Abstract
The covalent binding of pectinase onto amino functionalized silica-coated magnetic nanoparticles (CSMNPs) through glutaraldehyde activation was investigated for nanobiocatalyst fabrication. The average particle size and morphology of the nanoparticles were characterized using transmission electron microscopy (TEM). The statistical analysis for TEM image suggests that the coating and binding process did not cause any significant change in size of MNPs. The morphological and phase change of the magnetic nanoparticles (MNPs) after various coatings and immobilization were characterized by X-ray diffraction (XRD) studies. The various surface modifications and pectinase binding onto nanoparticles were confirmed by Fourier transform infrared (FT-IR) spectroscopy. The maximum activity of immobilized pectinase was obtained at its weight ratio of 19.0×10(-3) mg bound pectinase/mg CSMNPs. The pH, temperature, reusability, storage ability and kinetic studies were established to monitor their improved stability and activity of the fabricated nanobiocatalyst. Furthermore, the application was extended in the clarification of Malus domestica juice.
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37
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Esawy MA, Gamal AA, Kamel Z, Ismail AMS, Abdel-Fattah AF. Evaluation of free and immobilized Aspergillus niger NRC1ami pectinase applicable in industrial processes. Carbohydr Polym 2012; 92:1463-9. [PMID: 23399177 DOI: 10.1016/j.carbpol.2012.10.061] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 10/01/2012] [Accepted: 10/22/2012] [Indexed: 11/16/2022]
Abstract
The Aspergillus niger NRC1ami pectinase was evaluated according to its hydrolysis efficiency of dry untreated orange peels (UOP), HCl-treated orange peels and NaOH-treated orange peels (HOP and NOP). Pectinase was entrapped in polyvinyl alcohol (PVA) sponge and the optimum pH and temperature of the free and immobilized enzymes were shifted from 4, 40 °C to 6, 50 °C respectively. The study of pH stability of free and immobilized pectinase showed that the immobilization process protected the enzyme strongly from severe alkaline pHs. The immobilization process improved the enzyme thermal stability to great instant. The unique feature of the immobilization process is its ability to solve the orange juice haze problem completely. Immobilized enzyme was reused 12 times in orange juice clarification with 9% activity loss from the original activity. Maximum reaction rate (V(max)) and Michaelis-Menten constant (K(m)) of the partially purified form were significantly changed after immobilization.
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Affiliation(s)
- Mona A Esawy
- Department of Chemistry of Natural and Microbial Products, National Research Center, Dokki, Giza, Egypt.
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38
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Xie Y, Liu Y, Wang Y, Wang S, Jiang T. Chitosan matrix with three dimensionally ordered macroporous structure for nimodipine release. Carbohydr Polym 2012; 90:1648-55. [PMID: 22944429 DOI: 10.1016/j.carbpol.2012.07.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 07/12/2012] [Accepted: 07/18/2012] [Indexed: 11/26/2022]
Abstract
Three dimensionally ordered macroporous (3DOM) chitosan (3D-CS) matrix with interconnected pores in the nanometer range was developed as a drug carrier for the first time. 3D-CS was prepared using a template-assisted assembly and characterized by SEM, TGA, N(2) adsorption and FT-IR. As a model drug, nimodipine (NMDP) was incorporated into the pores of 3D-CS matrix. The solid state properties of NMDP-loaded samples were characterized by SEM, XRD, DSC and FT-IR. Dissolution studies showed that release behavior of the drug was markedly affected by the particle size of the matrix. With a relatively small matrix particle size, formulations of NMDP-3D-CS-0.5 and NMDP-3D-CS-1 exhibited rapid release patterns. However, on increasing the amount of carrier, release rate of the drug decreased. The pH-dependent slow-release characteristic of 3D-CS matrix delivery system was demonstrated by investigating the release behavior of NMDP at different pH values.
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Affiliation(s)
- Yuling Xie
- Department of Pharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
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39
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Popat A, Liu J, Lu GQ(M, Qiao SZ. A pH-responsive drug delivery system based on chitosan coated mesoporous silica nanoparticles. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30501a] [Citation(s) in RCA: 234] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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40
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Singhon R, Husson J, Knorr M, Euvrard M. Preparation of Silica-Supported Biosorbents for Copper(II) Removal. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691.2011.616133] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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41
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Soares JC, Moreira PR, Queiroga AC, Morgado J, Malcata FX, Pintado ME. Application of immobilized enzyme technologies for the textile industry: a review. BIOCATAL BIOTRANSFOR 2011. [DOI: 10.3109/10242422.2011.635301] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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42
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Liu Y, Chen W, Kim HI. Antibacterial activity of pH-sensitive genipin cross-linked chitosan/poly(ethylene glycol)/silver nanocomposites. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1818] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Pavinatto FJ, Caseli L, Oliveira ON. Chitosan in Nanostructured Thin Films. Biomacromolecules 2010; 11:1897-908. [DOI: 10.1021/bm1004838] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Felippe J. Pavinatto
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brasil, and Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Luciano Caseli
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brasil, and Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Diadema, SP, Brasil
| | - Osvaldo N. Oliveira
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brasil, and Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Diadema, SP, Brasil
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44
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Mei N, Xuguang L, Jinming D, Husheng J, Liqiao W, Bingshe X. Antibacterial activity of chitosan coated Ag-loaded nano-SiO2 composites. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2009.04.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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Kumar AG, Swarnalatha S, Kamatchi P, Sekaran G. Immobilization of high catalytic acid protease on functionalized mesoporous activated carbon particles. Biochem Eng J 2009. [DOI: 10.1016/j.bej.2008.09.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Ma L, Lu W, Wen J. Encapsulation of lactate dehydrogenase in carbon nanotube doped alginate–chitosan capsules. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Mark SS, Stolper SI, Baratti C, Park JY, Kricka LJ. Biofunctionalization of aqueous dispersed, alumina membrane-templated polymer nanorods for use in enzymatic chemiluminescence assays. Colloids Surf B Biointerfaces 2008; 65:230-8. [DOI: 10.1016/j.colsurfb.2008.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Revised: 04/12/2008] [Accepted: 04/15/2008] [Indexed: 10/22/2022]
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