1
|
Xia Y, Zhao J, Saeed M, Hussain N, Chen X, Guo Z, Yong Y, Chen H. Molecular Modification Strategies of Nitrilase for Its Potential Application in Agriculture. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15106-15121. [PMID: 38949086 DOI: 10.1021/acs.jafc.4c03388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Some feed source plants will produce secondary metabolites such as cyanogenic glycosides during metabolism, which will produce some poisonous nitrile compounds after hydrolysis and remain in plant tissues. The consumption of feed-source plants without proper treatment affect the health of the animals' bodies. Nitrilases can convert nitriles and have been used in industry as green biocatalysts. However, due to their bottleneck problems, their application in agriculture is still facing challenges. Acid-resistant nitrilase preparations, high-temperature resistance, antiprotease activity, strong activity, and strict reaction specificity urgently need to be developed. In this paper, the application potential of nitrilase in agriculture, especially in feed processing industry was explored, the source properties and catalytic mechanism of nitrilase were reviewed, and modification strategies for nitrilase application in agriculture were proposed to provide references for future research and application of nitrilase in agricultural and especially in the biological feed scene.
Collapse
Affiliation(s)
- Yutong Xia
- School of the Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| | - Jia Zhao
- School of the Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| | - Muhammad Saeed
- School of the Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
- Department of Poultry Science, Faculty of Animal Production and Technology, The Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - Nazar Hussain
- School of the Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| | - Xihua Chen
- School of the Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| | - Zhongjian Guo
- School of the Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| | - Yangchun Yong
- Biofuels Institute, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| | - Huayou Chen
- School of the Life Sciences, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu Province 212013, China
| |
Collapse
|
2
|
Kumari B, Chauhan S, Chauhan GS, Kumar K, Jamwal P, Ranote S. A two-in-one thiosemicarbazide and whole pine needle-based adsorbent for rapid and efficient adsorption of methylene blue dye and mercuric ions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21591-21609. [PMID: 38396177 DOI: 10.1007/s11356-024-32446-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/08/2024] [Indexed: 02/25/2024]
Abstract
Herein, we report the synthesis of an oxidized pine needle-thiosemicarbazone Schiff base (OPN-TSC) from whole pine needles (WPN) as a dual-purpose adsorbent to remove a cationic dye, methylene blue (MB), and Hg2+ ions in separate processes. The adsorbent was synthesized by periodate oxidation of WPN followed by a reaction with thiosemicarbazide. The syntheses of OPN and OPN-TSC were confirmed by FTIR, XRD, FESEM, EDS, BET, and surface charge analysis. The emergence of new peaks at 1729 cm-1 (-CHO stretching) and 1639 cm-1 (-COO- stretching) in the FTIR spectrum of OPN confirmed the oxidation of WPN to OPN. FTIR spectrum of OPN-TSC has a peak at 1604 cm-1 (C = N stretching), confirming the functionalization of OPN to OPN-TSC. XRD studies revealed an increase in the crystallinity of OPN and a decrease in the crystallinity of OPN-TSC because of the attachment of thiosemicarbazide to OPN. The values of %removal for MB and Hg2+ ions by OPN-TSC were found to be 87.36% and 98.2% with maximum adsorption capacity of 279.3 mg/g and 196 mg/g for MB and Hg2+ ions, respectively. The adsorption of MB followed pseudo-second-order kinetics with correlation coefficient (R2 of 0.99383) and Freundlich isotherm (R2 = 0.97239), whereas Hg2+ ion removal demonstrated the Elovich (R2 = 0.97076) and Langmuir isotherm (R2 = 0.95110). OPN-TSC is regenerable with significant recyclability up to 10 cycles for both the adsorbates. The studies established OPN-TSC as a low-cost, sustainable, biodegradable, environmentally benign, and promising adsorbent for the removal of hazardous cationic dyes and toxic metal ions from wastewater and industrial effluents, especially the textile effluents.
Collapse
Affiliation(s)
- Babita Kumari
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Sandeep Chauhan
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005.
| | - Ghanshyam S Chauhan
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Kiran Kumar
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Pooja Jamwal
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Sunita Ranote
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Skłodowska St, 41-819, Zabrze, Poland
| |
Collapse
|
3
|
Shen D, Chen H, Li M, Yu L, Li X, Liu H, Hu Q, Lu Y. Effects of Different Molecular Weight Oxidized Dextran as Crosslinkers on Stability and Antioxidant Capacity of Curcumin-Loaded Nanoparticles. Foods 2023; 12:2533. [PMID: 37444270 DOI: 10.3390/foods12132533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 07/15/2023] Open
Abstract
Curcumin is a polyphenolic compound that has been widely investigated for its health benefits. However, the clinical relevance of curcumin is limited due to its low water solubility and inefficient absorption. Therefore, curcumin is often encapsulated in nanocarriers to improve its delivery and function. In this study, composite nanoparticles composed of stearic acid-modified chitosan (SA-CS) and sodium caseinate (NaCas) were formed using sodium periodate-oxidized dextran with different molecular weights as a crosslinking agent. The effects of oxidized dextran (Odex) with different molecular weights on the composite nanoparticles were compared. The optimal SA-CS/NaCas/Odex composite nanoparticle (NPO) was obtained using an Odex (150 kDa)-to-SA-CS mass ratio of 2:1. Its size, polydispersity index (PDI), and zeta potential (ZP) were 130.2 nm, 0.149, and 25.4 mV, respectively. The particles were highly stable in simulated gastric fluid (SGF) in vitro, and their size and PDI were 172.3 nm and 0.263, respectively. The encapsulation rate of NPO loaded with curcumin (Cur-NPO) was 93% under optimal ultrasonic conditions. Compared with free curcumin, the sustained release of Cur-NPO significantly reduced to 17.9%, and free-radical-scavenging ability improved to 78.7%. In general, the optimal prepared NPO exhibited good GI stability and has potential applications in the formulation of orally bioactive hydrophobic drugs.
Collapse
Affiliation(s)
- Dongyan Shen
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, 3 Wenyuan Road, Nanjing 210023, China
| | - Hongzhou Chen
- Anhui Guotaizhongxin Testing Technology Co., Ltd., 22nd Floor, Huishang Square, Hefei 230041, China
| | - Mingwei Li
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, 3 Wenyuan Road, Nanjing 210023, China
| | - Ling Yu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, 3 Wenyuan Road, Nanjing 210023, China
| | - Xiangfei Li
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, 3 Wenyuan Road, Nanjing 210023, China
| | - Huawei Liu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, 3 Wenyuan Road, Nanjing 210023, China
| | - Qiaobin Hu
- College of Health Solutions, Arizona State University, 850 N 5th Street, Phoenix, AZ 85004, USA
| | - Yingjian Lu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, 3 Wenyuan Road, Nanjing 210023, China
| |
Collapse
|
4
|
Teepakorn C, Zajkoska P, Cwicklinski G, De Berardinis V, Zaparucha A, Nonglaton G, Anxionnaz-Minvielle Z. Nitrilase immobilization and transposition from a micro-scale batch to a continuous process increase the nicotinic acid productivity. Biotechnol J 2021; 16:e2100010. [PMID: 34270173 DOI: 10.1002/biot.202100010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 01/14/2023]
Abstract
In recent years, many biocatalytic processes have been developed for the production of chemicals and pharmaceuticals. In this context, enzyme immobilization methods have attracted attention for their advantages, such as continuous production and increased stability. Here, enzyme immobilization methods and a collection of nitrilases from biodiversity for the conversion of 3-cyanopyridine to nicotinic acid were screened. Substrate conversion over 10 conversion cycles was monitored to optimize the process. The best immobilization conditions were found with cross-linking using glutaraldehyde to modify the PMMA beads. This method showed good activity over 10 cycles in a batch reactor at 30 and 40°C. Finally, production with a new thermostable nitrilase was examined in a continuous packed bed reactor, showing very high stability of the biocatalytic process at a flow rate of 0.12 ml min-1 and a temperature of 50°C. The complete conversion of 3-cyanopyridine was obtained over 30 days of operation. Future steps will concern reactor scale-up to increase the production rate with reasonable pressure drops.
Collapse
Affiliation(s)
- Chalore Teepakorn
- CEA, LITEN, DTCH, Laboratoire Composants et Systèmes Thermiques (LCST), Univ. Grenoble Alpes, Grenoble, France.,CEA, LETI, DTBS, Laboratoire des Systèmes Microfluidiques pour la Biologie (LSMB), Univ. Grenoble Alpes, Grenoble, France
| | - Petra Zajkoska
- CEA, LETI, DTBS, Laboratoire Chimie, Capteurs et Biomatériaux (L2CB), Univ. Grenoble Alpes, Grenoble, France.,Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ. Evry, Univ. Paris-Saclay, Paris, France
| | - Gregory Cwicklinski
- CEA, LITEN, DTCH, Laboratoire Composants et Systèmes Thermiques (LCST), Univ. Grenoble Alpes, Grenoble, France
| | - Véronique De Berardinis
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ. Evry, Univ. Paris-Saclay, Paris, France
| | - Anne Zaparucha
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ. Evry, Univ. Paris-Saclay, Paris, France
| | - Guillaume Nonglaton
- CEA, LETI, DTBS, Laboratoire Chimie, Capteurs et Biomatériaux (L2CB), Univ. Grenoble Alpes, Grenoble, France
| | - Zoé Anxionnaz-Minvielle
- CEA, LITEN, DTCH, Laboratoire Composants et Systèmes Thermiques (LCST), Univ. Grenoble Alpes, Grenoble, France
| |
Collapse
|
5
|
Toprak A, Tükel SS, Yildirim D. Stabilization of multimeric nitrilase via different immobilization techniques for hydrolysis of acrylonitrile to acrylic acid. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2020.1869217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ali Toprak
- Vocational School of Acigol, University of Nevsehir Haci Bektas Veli, Nevsehir, Turkey
- Department of Chemistry, Faculty of Science and Letters, University of Cukurova, Adana, Turkey
| | - S. Seyhan Tükel
- Department of Chemistry, Faculty of Science and Letters, University of Cukurova, Adana, Turkey
| | - Deniz Yildirim
- Department of Chemical Engineering, Faculty of Ceyhan Engineering, University of Cukurova, Adana, Turkey
| |
Collapse
|
6
|
Zou S, Hua D, Jiang Z, Han X, Xue Y, Zheng Y. A integrated process for nitrilase-catalyzed asymmetric hydrolysis and easy biocatalyst recycling by introducing biocompatible biphasic system. BIORESOURCE TECHNOLOGY 2021; 320:124392. [PMID: 33246240 DOI: 10.1016/j.biortech.2020.124392] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 06/11/2023]
Abstract
The whole-cell nitrilase-catalyzed asymmetric hydrolysis of nitriles is a green and efficient preparation approach for chiral carboxylic acids, but often suffers from toxicity and cell lysis from organic substrates. In this work, a novel integrated process for whole-cell nitrilase-catalyzed asymmetric hydrolysis was developed for the first time by introducing a biocompatible ionic liquid (IL)-based biphasic system. The whole-cell nitrilases displayed an outstanding stability and recyclability in the biphasic system and still retained > 85% activity even after 7 cycles reaction. A preparative-scale fed-batch hydrolysis of o-chloromandelonitrile to (R)-o-chloromandelic acid (R-CMA) was performed using the integrated process. The results revealed a yield of 91.3% and a space-time yield of 746.4 g·L-1·d-1, which are currently the highest reported values for R-CMA biosynthesis. The proposed integrated process avoids substrate inhibition, facilitates the reusability of whole-cell nitrilases, and thus shows great potential for the sustainable production of chiral carboxylic acids.
Collapse
Affiliation(s)
- Shuping Zou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Dengen Hua
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zhentao Jiang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xin Han
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yaping Xue
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yuguo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| |
Collapse
|
7
|
Shen JD, Cai X, Liu ZQ, Zheng YG. Nitrilase: a promising biocatalyst in industrial applications for green chemistry. Crit Rev Biotechnol 2020; 41:72-93. [PMID: 33045860 DOI: 10.1080/07388551.2020.1827367] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nitrilases are widely distributed in nature and are able to hydrolyze nitriles into their corresponding carboxylic acids and ammonia. In industry, nitrilases have been used as green biocatalysts for the production of high value-added products. To date, biocatalysts are considered to be important alternatives to chemical catalysts due to increasing environmental problems and resource scarcity. This review provides an overview of recent advances of nitrilases in aspects of distribution, enzyme screening, molecular structure and catalytic mechanism, protein engineering, and their potential applications in industry.
Collapse
Affiliation(s)
- Ji-Dong Shen
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Xue Cai
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Zhi-Qiang Liu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, P.R. China
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, P. R. China.,Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, Hangzhou, P.R. China
| |
Collapse
|
8
|
Plant Nitrilase Homologues in Fungi: Phylogenetic and Functional Analysis with Focus on Nitrilases in Trametes versicolor and Agaricus bisporus. Molecules 2020; 25:molecules25173861. [PMID: 32854275 PMCID: PMC7503981 DOI: 10.3390/molecules25173861] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/15/2020] [Accepted: 08/16/2020] [Indexed: 11/17/2022] Open
Abstract
Fungi contain many plant-nitrilase (NLase) homologues according to database searches. In this study, enzymes NitTv1 from Trametes versicolor and NitAb from Agaricus bisporus were purified and characterized as the representatives of this type of fungal NLase. Both enzymes were slightly more similar to NIT4 type than to NIT1/NIT2/NIT3 type of plant NLases in terms of their amino acid sequences. Expression of the synthetic genes in Escherichia coli Origami B (DE3) was induced with 0.02 mM isopropyl β-D-1-thiogalactopyranoside at 20 °C. Purification of NitTv1 and NitAb by cobalt affinity chromatography gave ca. 6.6 mg and 9.6 mg of protein per 100 mL of culture medium, respectively. Their activities were determined with 25 mM of nitriles in 50 mM Tris/HCl buffer, pH 8.0, at 30 °C. NitTv1 and NitAb transformed β-cyano-L-alanine (β-CA) with the highest specific activities (ca. 132 and 40 U mg−1, respectively) similar to plant NLase NIT4. β-CA was transformed into Asn and Asp as in NIT4 but at lower Asn:Asp ratios. The fungal NLases also exhibited significant activities for (aryl)aliphatic nitriles such as 3-phenylpropionitrile, cinnamonitrile and fumaronitrile (substrates of NLase NIT1). NitTv1 was more stable than NitAb (at pH 5–9 vs. pH 5–7). These NLases may participate in plant–fungus interactions by detoxifying plant nitriles and/or producing plant hormones. Their homology models elucidated the molecular interactions with various nitriles in their active sites.
Collapse
|
9
|
Wang SZ, Wang ZK, Gong JS, Qin J, Dong TT, Xu ZH, Shi JS. Improving the biocatalytic performance of co-immobilized cells harboring nitrilase via addition of silica and calcium carbonate. Bioprocess Biosyst Eng 2020; 43:2201-2207. [PMID: 32661565 DOI: 10.1007/s00449-020-02405-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
Abstract
To improve nicotinic acid (NA) yield and meet industrial application requirements of sodium alginate-polyvinyl alcohol (SA-PVA) immobilized cells of Pseudomonas putida mut-D3 harboring nitrilase, inorganic materials were added to the SA-PVA immobilized cells to improve mechanical strength and mass transfer performance. The concentrations of inorganic materials were optimized to be 2.0% silica and 0.6% CaCO3. The optimal pH and temperature for SA-PVA immobilized cells and composite immobilized cells were both 8.0 and 45 °C, respectively. The half-lives of composite immobilized cells were 271.48, 150.92, 92.92 and 33.12 h, which were 1.40-, 1.35-, 1.22- and 1.63-fold compared to SA-PVA immobilized cells, respectively. The storage stability of the composite immobilized cells was slightly increased. The composite immobilized cells could convert 14 batches of 3-cyanopyridine with feeding concentration of 250 mM and accumulate 418 g ·L-1 nicotinic acid, while the SA-PVA immobilized cells accumulated 346 g L-1 nicotinic acid.
Collapse
Affiliation(s)
- Shun-Zhi Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
- National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zi-Kai Wang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Jin-Song Gong
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China.
| | - Jiufu Qin
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Ting-Ting Dong
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Zheng-Hong Xu
- National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Jin-Song Shi
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Pharmaceutical Sciences, Jiangnan University, Wuxi, 214122, People's Republic of China.
| |
Collapse
|
10
|
Jamwal S, Ranote S, Dautoo U, Chauhan GS. Improving activity and stabilization of urease by crosslinking to nanoaggregate forms for herbicide degradation. Int J Biol Macromol 2020; 158:521-529. [PMID: 32360462 DOI: 10.1016/j.ijbiomac.2020.04.224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/13/2020] [Accepted: 04/25/2020] [Indexed: 01/14/2023]
Abstract
Bioremediation is the most effective green protocol for degradation of environmental contaminants. Present study involves carrier free urease immobilization with synthesis of its new crosslinked aggregates using two different crosslinkers, divinyl benzene (DVB) and tripropyleneglycol dimethacrylate (TPGDA) via free radical mechanism. Resulting crosslinked ureases were further converted to nanoform (CLUNAs) using solvent evaporation technique. The activity of free and the crosslinked ureases was studied as a function of operational parameters viz. temperature (20-80), pH (2-11) and substrate concentration (5-20 mM) using urea as substrate at contact time of 10 min. Storability study of the pristine urease and CLUNAs was carried out for 40 days, and the CLUNAs were reused in 10 repeat cycles to assess their reusability. Isoproturone degradation was studied under the above-cited range of pH and temperature and results were recorded after 24 h.
Collapse
Affiliation(s)
- Shivani Jamwal
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India
| | - Sunita Ranote
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India
| | - Umesh Dautoo
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India
| | - Ghanshyam S Chauhan
- Himachal Pradesh University, Department of Chemistry, Summerhill, Shimla 171005, Himachal Pradesh, India.
| |
Collapse
|
11
|
Rodriguez NJ, Hu Q, Luo Y. Oxidized Dextran as a Macromolecular Crosslinker Stabilizes the Zein/Caseinate Nanocomplex for the Potential Oral Delivery of Curcumin. Molecules 2019; 24:molecules24224061. [PMID: 31717559 PMCID: PMC6891680 DOI: 10.3390/molecules24224061] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/05/2019] [Accepted: 11/07/2019] [Indexed: 12/14/2022] Open
Abstract
In this study, we prepared complex nanoparticles from a combination of two proteins and one polysaccharide for the encapsulation and delivery of lipophilic bioactive compounds. Two proteins, zein and sodium caseinate (NaCas), provided a hydrophobic core for the encapsulation of a lipophilic compound (curcumin), while a polysaccharide dialdehyde, oxidized dextran, served as the coating material and macromolecular crosslinker to create covalent linkage with two proteins for stabilization purposes. The heating time and crosslinker concentration were optimized to achieve the desirable colloidal stability in simulated gastric and intestinal fluids. Our results suggested that heating time played a more important role than the concentration of oxidized dextran. The optimized complex nanoparticles had a particle size of around 150 nm with a PDI < 0.1 and negative surface charge. Morphological observation by transmission electron microscopy revealed a spherical shape and uniform size distribution. Fourier transform infrared and fluorescence spectroscopies evidenced the formation of Schiff base complex, confirming the validity of covalent crosslinking. Furthermore, the complex nanoparticles demonstrated superior encapsulation properties for curcumin, showing an efficiency of >90% at 10% loading. A rather slow kinetic release profile of curcumin from complex nanoparticles was observed under simulated gastrointestinal conditions. The complex nanoparticles prepared from zein, NaCas, and oxidized dextran hold promising potential for the oral delivery of lipophilic bioactive compounds.
Collapse
Affiliation(s)
| | | | - Yangchao Luo
- Correspondence: ; Tel.: +1-860-486-2180; Fax: +1-860-486-3674
| |
Collapse
|