1
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Lee ME, Shin HY, Bhardwaj N, Cho BH, Hwang DH, Jeong WY, Han SO. Effective bioconversion of fungal-spoiled starchy food waste into fermentable sugars using fungi-degrading, artificial amylosomes. BIORESOURCE TECHNOLOGY 2023; 388:129760. [PMID: 37741579 DOI: 10.1016/j.biortech.2023.129760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/25/2023]
Abstract
Fungi-degrading artificial amylosomes were newly developed consisting of fungi-degrading enzyme (NAG), starch-degrading enzymes and a scaffold protein. Amylosome scaffolds containing starch-binding proteins (SbpCbpA and CCSbpCbpA) were highly bound to starch and fungal-spoiled food waste. Amylosomes showed an average of 1.43-fold higher reducing sugar production from starch. 2.00-fold α-amylase in amylosomes increased reducing sugar production from amylose by an average of 1.50-fold. At 70°C for 6 hours, SbpCbpA and CCSbpCbpA maintained an average activity of 56.42% compared to the control (38.37%). The enzyme mixture and amylosomes with NAG showed an average 1.31-fold increase in glucose production in response to fungal-spoiled food waste compared to samples without NAG; in particular, CCSbpCbpA with NAG produced 62.44 ± 0.03 mM glucose (2.55-fold of the enzyme mixture without NAG). This research strategy can be applicable to the starch and fungal-spoiled food waste saccharification in an ecofriendly manner, leading to sugar production in industrial fields.
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Affiliation(s)
- Myeong-Eun Lee
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Ha-Young Shin
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Nisha Bhardwaj
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Byeong-Hyeon Cho
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Dong-Hyeok Hwang
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Wu-Young Jeong
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Sung Ok Han
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea.
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2
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Concepción A, Ricardo A, Enrique SL. Biodegradation of Choline NTF 2 by Pantoea agglomerans in Different Osmolarity. Characterization and Environmental Implications of the Produced Exopolysaccharide. Polymers (Basel) 2023; 15:3974. [PMID: 37836024 PMCID: PMC10575057 DOI: 10.3390/polym15193974] [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: 08/31/2023] [Revised: 09/24/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
A specific microorganism, Pantoea agglomerans uam8, was isolated from the ionic liquid (IL) Choline NTF2 and identified by molecular biology. A biodegradation study was performed at osmolarity conditions (0.2, 0.6, 1.0 M). These had an important influence on the growth of the strain, exopolysaccharide (EPS) production, and biodegradation (1303 mg/L max production and 80% biodegradation at 0.6 M). These conditions also had an important influence on the morphology of the strain and its EPSs, but not in the chemical composition. The EPS (glucose, mannose and galactose (6:0.5:2)) produced at 0.6 M was further characterized using different techniques. The obtained EPSs presented important differences in the behavior of the emulsifying activity for vegetable oils (olive (86%), sunflower (56%) and coconut (90%)) and hydrocarbons (diesel (62%), hexane (60%)), and were compared with commercial emulsifiers. The EPS produced at 0.6 M had the highest emulsifying activity overall. This EPS did not show cytotoxicity against the tested cell line (<20%) and presented great advantages as an antioxidant (1,1-diphenyl-2-picryl-hydrazyl radical (DPPH) (85%), hydroxyl radical (OH) (99%), superoxide anion (O2-) (94%), chelator (54%), and antimicrobial product (15 mm). The osmolarity conditions directly affected the capacity of the strain to biodegrade IL and the subsequently produced EPS. Furthermore, the EPS produced at 0.6 M has potential for environmental applications, such as the removal of hazardous materials by emulsification, whilst resulting in positive health effects such as antioxidant activity and non-toxicity.
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Affiliation(s)
- Abrusci Concepción
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, UAM, Cantoblanco, 28049 Madrid, Spain (S.-L.E.)
- Centro de Biología Molecular Severo Ochoa, CSIC-UAM, 28049 Madrid, Spain
| | - Amils Ricardo
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, UAM, Cantoblanco, 28049 Madrid, Spain (S.-L.E.)
- Centro de Biología Molecular Severo Ochoa, CSIC-UAM, 28049 Madrid, Spain
| | - Sánchez-León Enrique
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, UAM, Cantoblanco, 28049 Madrid, Spain (S.-L.E.)
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3
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Dayi D, Eschenhagen U, Seidinger H, Schneider H, Schmidt MS. p-Phenylene Diisothiocyanate-Based Covalent Immobilization of β-d-Galactosidase and Determination of Enzyme Activity by Cleavage of X-Gal and ONPG on Solid Support. ACS OMEGA 2023; 8:27585-27596. [PMID: 37546597 PMCID: PMC10399185 DOI: 10.1021/acsomega.3c03279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 06/29/2023] [Indexed: 08/08/2023]
Abstract
Herein, we present the immobilization of a technical grade β-d-galactosidase on amino-functionalized microtiter plates. Afterward, we transferred the results to a resin-based approach. For the covalent binding of the enzyme, an amino-functionalized microtiter plate was prefunctionalized with 1,4-phenylendiisothiocyanate. The cleavage of the substrate 5-bromo-4-chloro-3-indoxyl-β-d-galactopyranoside (X-Gal) produces a deep blue dye, which was quantified in a microtiter plate reader at 595 nm. The maximum reaction rates and the Michaelis-Menten constant were calculated. In addition, the unwanted blue precipitate formed during the experiments could be minimized by optimizing the experiments. When transferring the immobilization method to Rink amide resin, o-nitrophenyl-β-d-galactopyranoside was used as the substrate and the measurement was carried out in a photometer at 420 nm.
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Affiliation(s)
- Defne
I. Dayi
- Medical
and Life Sciences Faculty, Furtwangen University
of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany
| | - Ursula Eschenhagen
- Medical
and Life Sciences Faculty, Furtwangen University
of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany
- Institute
of Applied Biology, University Pilot Plant/Technical Center, Medical
and Life Sciences Faculty, Furtwangen University
of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany
| | - Henrike Seidinger
- Medical
and Life Sciences Faculty, Furtwangen University
of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany
| | - Holger Schneider
- Medical
and Life Sciences Faculty, Furtwangen University
of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany
- Institute
of Applied Biology, University Pilot Plant/Technical Center, Medical
and Life Sciences Faculty, Furtwangen University
of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany
| | - Magnus S. Schmidt
- Medical
and Life Sciences Faculty, Furtwangen University
of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany
- Institute
of Precision Medicine, Organic and Bioorganic Chemistry Lab, Furtwangen University of Applied Sciences, Campus Villingen-Schwenningen, Jacob-Kienzle-Straße
17, 78054 Villingen-Schwenningen, Germany
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4
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Panchal N, Jain V, Elliott R, Flint Z, Worsley P, Duran C, Banerjee T, Santra S. Plasmon-Enhanced Bimodal Nanosensors: An Enzyme-Free Signal Amplification Strategy for Ultrasensitive Detection of Pathogens. Anal Chem 2022; 94:13968-13977. [PMID: 36153970 DOI: 10.1021/acs.analchem.2c03215] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Increasing foodborne illnesses have led to global health and economic burdens. E. coli O157:H7 is one of the most common disease-provoking pathogens and known to be lethal Shiga toxin-producing E. coli (STEC) strains. With a low infection dose in addition to person-to-person transmission, STEC infections are easily spread. As a result, specific and rapid testing methods to identify foodborne pathogens are urgently needed. Nanozymes have emerged as enzyme-mimetic nanoparticles, demonstrating intrinsic catalytic activity that could allow for rapid, specific, and accurate pathogen identification in the agrifood industry. In this study, we developed a sensitive nanoplatform based on the traditional ELISA assay with the synergistic properties of gold and iron oxide nanozymes, replacing the conventional enzyme horseradish peroxidase (HRP). We designed an easily interchangeable sandwich ELISA composed of a novel, multifunctional magneto-plasmonic nanosensor (MPnS) with target antibodies (MPnS-Ab). Our experiments demonstrate a 100-fold increase in catalytic activity in comparison to HRP with observable color changes within 15 min. Results further indicate that the MPnS-Ab is highly specific for E. coli O157:H7. Additionally, effective translatability of catalytic activity of the MPnS technology in the lateral flow assay (LFA) platform is also demonstrated for E. coli O157:H7 detection. As nanozymes display more stability, tunable activity, and multi-functionality than natural enzymes, our platform could provide customizable, low-cost assay that combines high specificity with rapid detection for a variety of pathogens in a point-of-care setup.
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Affiliation(s)
- Nilamben Panchal
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, Kansas 66762, United States
| | - Vedant Jain
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, Kansas 66762, United States
| | - Rebekah Elliott
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, Kansas 66762, United States
| | - Zachary Flint
- Department of Chemistry and Biochemistry, Missouri State University, 901 S. National Avenue, Springfield, Missouri 65897, United States
| | - Paul Worsley
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, Kansas 66762, United States
| | - Caine Duran
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, Kansas 66762, United States
| | - Tuhina Banerjee
- Department of Chemistry and Biochemistry, Missouri State University, 901 S. National Avenue, Springfield, Missouri 65897, United States
| | - Santimukul Santra
- Department of Chemistry, Pittsburg State University, 1701 S. Broadway Street, Pittsburg, Kansas 66762, United States
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5
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Unlocking the access to oxidized coenzyme A via a single-step green membrane-based purification. Sci Rep 2022; 12:12991. [PMID: 35906370 PMCID: PMC9338019 DOI: 10.1038/s41598-022-17250-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/22/2022] [Indexed: 11/30/2022] Open
Abstract
A new membrane-based strategy to purify oxidized coenzyme A ((CoAS)2) from adenosine triphosphate (ATP), adenosine diphosphate (ADP) and adenosine monophosphate (AMP) has been developed. Commercially available membranes were screened and studied (permeate flux and overall compounds retention) which allowed the identification of one efficient membrane (GK from Suez Water Technologies & Solutions). Different total compounds concentrations solutions were used in the system in order to find the following working conditions: 4 bars with a total compounds solution of 5.19 g L−1. Applying these conditions to a dia-filtration set-up allowed us to reach 68% pure (CoAS)2 in 4.8 diafiltration volumes (DV) and a 95% (CoAS)2 purity can be predicted in 8.5 DV. A comparative study of green metrics—i.e. process mass index (PMI)—of the classic chromatography vs the membrane-based one demonstrated the great advantages of the latter in terms of sustainability. This strategy unlocks the access to the essential and central cofactor that is coenzyme A.
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6
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Ye YT, Zhang H, Deng JL, Li MZ, Chen ZX. l-Arginine inhibits the activity of α-amylase: Rapid kinetics, interaction and functional implications. Food Chem 2022; 380:131836. [PMID: 35086017 DOI: 10.1016/j.foodchem.2021.131836] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/15/2021] [Accepted: 12/08/2021] [Indexed: 11/27/2022]
Abstract
In this work, the rapid unfolding kinetics of pancreas α-amylase (PPA) induced by l-arginine and the interaction mechanism were investigated. The unfolding followed a first-level reaction kinetics equation, without intermediates. l-arginine interacted with PPA though diffusion-controlled process rather than complexion. The interaction between l-arginine and PPA resulted in a pronounced decrease in β-sheet and a significant increase in random coil, and thereby the enzyme activity decreased. However, the unfolding of PPA could be compensated and the second structure change could be recovered to some extent by the macromolecular crowded medium of Pluronics. Further insight into the mechanism disclosed that the broken H-bond network of water may contribute to PPA unfolding. This work provides a new perspective on the interaction of l-arginine with digestive enzyme. The unfolding mechanism of enzymes by may help to understand the effects of other structurally similar drugs, which is of concern in food-drug interactions.
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Affiliation(s)
- Yu-Tong Ye
- Molecular Food Science Laboratory, College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Hai Zhang
- Molecular Food Science Laboratory, College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Jun-Ling Deng
- Molecular Food Science Laboratory, College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Mi-Zhuan Li
- Molecular Food Science Laboratory, College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Zhong-Xiu Chen
- Molecular Food Science Laboratory, College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou 310018, China.
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7
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Kumar N, Chauhan NS. Nano-Biocatalysts: Potential Biotechnological Applications. Indian J Microbiol 2021; 61:441-448. [PMID: 34744199 PMCID: PMC8542021 DOI: 10.1007/s12088-021-00975-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/19/2021] [Indexed: 12/14/2022] Open
Abstract
Biocatalysts are a biomolecule of interest for various biotechnological applications. Non-reusability and poor stability of especially enzymes has always limited their applications in large-scale processing units. Nanotechnology paves a way by conjugating the biocatalysts on different matrices. It predominantly enables nanomaterials to overcome the limited efficacy of conventional biocatalysts. Nanomaterial conjugated nanobiocatalyst have enhanced catalytic properties, selectivity, and stability. Nanotechnology extended the flexibility to engineer biocatalysts for various innovative and predictive catalyses. So developed nanobiocatalyst harbors remarkable properties and has potential applications in diverse biotechnological sectors. This article summaries various developments made in the area of nanobiocatalyst towards their applications in biotechnological industries. Novel nanobiocatalyst engineering is an area of critical importance for harnessing the biotechnological potential.
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Affiliation(s)
- Naveen Kumar
- Department of Chemistry, Maharshi Dayanand University Rohtak, Rohtak, Haryana India
| | - Nar Singh Chauhan
- Department of Biochemistry, Maharshi Dayanand University Rohtak, Rohtak, Haryana India
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8
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Pyser J, Chakrabarty S, Romero EO, Narayan ARH. State-of-the-Art Biocatalysis. ACS CENTRAL SCIENCE 2021; 7:1105-1116. [PMID: 34345663 PMCID: PMC8323117 DOI: 10.1021/acscentsci.1c00273] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Indexed: 05/03/2023]
Abstract
The use of enzyme-mediated reactions has transcended ancient food production to the laboratory synthesis of complex molecules. This evolution has been accelerated by developments in sequencing and DNA synthesis technology, bioinformatic and protein engineering tools, and the increasingly interdisciplinary nature of scientific research. Biocatalysis has become an indispensable tool applied in academic and industrial spheres, enabling synthetic strategies that leverage the exquisite selectivity of enzymes to access target molecules. In this Outlook, we outline the technological advances that have led to the field's current state. Integration of biocatalysis into mainstream synthetic chemistry hinges on increased access to well-characterized enzymes and the permeation of biocatalysis into retrosynthetic logic. Ultimately, we anticipate that biocatalysis is poised to enable the synthesis of increasingly complex molecules at new levels of efficiency and throughput.
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Affiliation(s)
- Joshua
B. Pyser
- Department
of Chemistry, Life Sciences Institute, and Program in Chemical Biology, University of Michigan, , 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United
States
| | - Suman Chakrabarty
- Department
of Chemistry, Life Sciences Institute, and Program in Chemical Biology, University of Michigan, , 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United
States
| | - Evan O. Romero
- Department
of Chemistry, Life Sciences Institute, and Program in Chemical Biology, University of Michigan, , 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United
States
| | - Alison R. H. Narayan
- Department
of Chemistry, Life Sciences Institute, and Program in Chemical Biology, University of Michigan, , 210 Washtenaw Avenue, Ann Arbor, Michigan 48109, United
States
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9
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Shao M, Liu D, Yan B, Feng X, Zhang X, Zhang Y. Layer-by-Layer Electrodeposition of FTO/TiO 2 /Cu x O/CeO 2 (1 < x < 2) Photocatalysts with High Peroxidase-Like Activity by Greatly Enhanced Singlet Oxygen Generation. SMALL METHODS 2021; 5:e2100423. [PMID: 34927991 DOI: 10.1002/smtd.202100423] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/26/2021] [Indexed: 06/14/2023]
Abstract
Inorganic nanomaterials have attracted much attention as enzyme mimics because of simple and stable spatial conformation of those artificially synthesized nanocatalysts. Cu2 O, as an important kind of narrow band gap semiconductor, is identified as effective as visible-light-driven photocatalysts, which can catalyze decomposition of H2 O2 into reactive oxygen species. Moreover, after forming Cux O/CeO2 hybrids, the strongly coupled interface between the two components will further improve their catalytic performance. In this paper, the authors try to construct FTO/TiO2 /Cux O/CeO2 (1 < x < 2) nanohybrids with such a kind of active interface via a layer-by-layer electrodeposition strategy by aid of the following surface etching process. It is found that FTO/TiO2 /Cux O/CeO2 exhibits good peroxidase mimic activity in the dark but much better performance under visible light irradiation (λ ≥ 420 nm) during catalytic oxidation of 3,3',5,5'-tetramethylbenzidine substrates in the presence of H2 O2 . Detailed characterizations disclose that the construction of TiO2 /Cu2 O pn-heterojunctions do effectively accelerate separation of photogenerated carriers, and the formation of a highly active Cux O/CeO2 interface is synergistically favorable for selectively generating singlet oxygen to boost the catalytic performance of FTO/TiO2 /Cux O/CeO2 .
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Affiliation(s)
- Mingzhe Shao
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P.R. China
| | - Dapeng Liu
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P.R. China
| | - Baolin Yan
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P.R. China
| | - Xilan Feng
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P.R. China
| | - Xiaojuan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, P. R. China
| | - Yu Zhang
- Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P.R. China
- International Research Institute for Multidisciplinary Science, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
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10
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Sasaki K, Furusawa H, Nagamine K, Tokito S. Constructive Optimization of a Multienzymatic Film Based on a Cascade Reaction for Electrochemical Biosensors. ACS OMEGA 2020; 5:32844-32851. [PMID: 33376922 PMCID: PMC7758940 DOI: 10.1021/acsomega.0c05521] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
The application of a multienzyme cascade reaction in electrochemical biosensors has the advantage of expanding the target substrates in addition to selectivity combining multiple enzymes on an electrode. However, the multienzyme system has the drawback of inefficient substance conversion because of the time-consuming passing of intermediates between the enzymes and/or diffusional loss of the intermediates. In this study, the optimal construction of a multienzymatic film in an ammonia detection sensor was investigated using a cascade reaction of l-glutamate oxidase and l-glutamate dehydrogenase as a model sensor. Three enzymatic films were prepared: (1) a mixed film designed to have a short diffusional distance between closely located enzymes, (2) a normal-sequential layered film arranged for the correct reaction pathway, and (3) a reverse-sequential layered film as a negative control. This was followed by comparison of the conversion efficiency of ammonia to hydrogen peroxide using time-dependent potentiometric measurements of a Prussian blue electrode determining the hydrogen peroxide amount. The results indicate that the conversion efficiency of the normal-sequential layered film was the highest among the three enzymatic films. The quantitative evaluation of the intermediate conversion efficiency of the cascade reaction showed that compared to the mixed film (34%), a higher conversion efficiency of 92% was obtained in the first enzymatic reaction step. These findings will promote the use of multienzymatic cascade reaction systems not only in biosensors and bioreactors but also in various industrial fields.
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Affiliation(s)
- Kai Sasaki
- Graduate
School of Organic Materials Science, Yamagata
University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Innovative
Flex Course for Frontier Organic Material Systems (iFront), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Hiroyuki Furusawa
- Innovative
Flex Course for Frontier Organic Material Systems (iFront), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Institute
for the Promotion of General Graduate Education (IPGE), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Research
Center for Organic Electronics (ROEL), Yamagata
University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Kuniaki Nagamine
- Graduate
School of Organic Materials Science, Yamagata
University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Research
Center for Organic Electronics (ROEL), Yamagata
University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Shizuo Tokito
- Graduate
School of Organic Materials Science, Yamagata
University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- Research
Center for Organic Electronics (ROEL), Yamagata
University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
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11
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Kim S, Kwon K, Cha J, Yoo S, Han MS, Tae G, Kwon I. Pluronic-Based Nanocarrier Platform Encapsulating Two Enzymes for Cascade Reactions. ACS APPLIED BIO MATERIALS 2020; 3:5126-5135. [DOI: 10.1021/acsabm.0c00591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Seoungkyun Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Kiyoon Kwon
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Jaehyun Cha
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Soyeon Yoo
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Min Su Han
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Giyoong Tae
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Inchan Kwon
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
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12
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Montoya D, Barbosa LO, Méndez J, Murillo W. Morphological, Structural, and Functional Evaluation of Rice Starch Acylated in a System Catalyzed by the B‐Lipase of
Candida antarctica. STARCH-STARKE 2020. [DOI: 10.1002/star.202000010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Diego Montoya
- GIPRONUT Chemistry Department Basic Sciences School Universidad del Tolima Barrio Santa Helena Parte Alta Cl 42 1‐02 I Ibagué‐Tolima 730006299 Colombia
| | - Luis Oveimar Barbosa
- GIPRONUT Chemistry Department Basic Sciences School Universidad del Tolima Barrio Santa Helena Parte Alta Cl 42 1‐02 I Ibagué‐Tolima 730006299 Colombia
| | - Jonh Méndez
- GIPRONUT Chemistry Department Basic Sciences School Universidad del Tolima Barrio Santa Helena Parte Alta Cl 42 1‐02 I Ibagué‐Tolima 730006299 Colombia
| | - Walter Murillo
- GIPRONUT Chemistry Department Basic Sciences School Universidad del Tolima Barrio Santa Helena Parte Alta Cl 42 1‐02 I Ibagué‐Tolima 730006299 Colombia
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13
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Knierbein M, Wangler A, Luong TQ, Winter R, Held C, Sadowski G. Combined co-solvent and pressure effect on kinetics of a peptide hydrolysis: an activity-based approach. Phys Chem Chem Phys 2019; 21:22224-22229. [PMID: 31576857 DOI: 10.1039/c9cp03868j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The application of co-solvents and high pressure has been reported to be an efficient means to tune the kinetics of enzyme-catalyzed reactions. Co-solvents and pressure can lead to increased reaction rates without sacrificing enzyme stability, while temperature and pH operation windows are generally very narrow. Quantitative prediction of co-solvent and pressure effects on enzymatic reactions has not been successfully addressed in the literature. Herein, we are introducing a thermodynamic approach that is based on molecular interactions in the form of activity coefficients of substrate and of enzyme in the multi-component solution. This allowed us to quantitatively predict the combined effect of co-solvent and pressure on the kinetic constants, i.e. the Michaelis constant KM and the catalytic constant kcat, of an α-CT-catalyzed peptide hydrolysis reaction. The reaction was studied in the presence of different types of co-solvents and at pressures up to 2 kbar, and quantitative predictions could be obtained for KM, kcat, and finally even primary Michaelis-Menten plots using activity coefficients provided by the thermodynamic model PC-SAFT.
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Affiliation(s)
- Michael Knierbein
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Anton Wangler
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Trung Quan Luong
- Physical Chemistry I, TU Dortmund University, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany
| | - Roland Winter
- Physical Chemistry I, TU Dortmund University, Otto-Hahn-Str. 4a, 44227 Dortmund, Germany
| | - Christoph Held
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Gabriele Sadowski
- Laboratory of Thermodynamics, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
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14
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Developing a Novel Enzyme Immobilization Process by Activation of Epoxy Carriers with Glucosamine for Pharmaceutical and Food Applications. Catalysts 2019. [DOI: 10.3390/catal9100843] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In this paper, we describe the development of an efficient enzyme immobilization procedure based on the activation of epoxy carriers with glucosamine. This approach aims at both creating a hydrophilic microenvironment surrounding the biocatalyst and introducing a spacer bearing an aldehyde group for covalent attachment. First, the immobilization study was carried out using penicillin G acylase (PGA) from Escherichia coli as a model enzyme. PGA immobilized on glucosamine activated supports has been compared with enzyme derivatives obtained by direct immobilization on the same non-modified carriers, in the synthesis of different 3′-functionalized cephalosporins. The derivatives prepared by immobilization of PGA on the glucosamine-carriers performed better than those prepared using the unmodified carriers (i.e., 90% versus 79% cefazolin conversion). The same immobilization method has been then applied to the immobilization of two other hydrolases (neutral protease from Bacillus subtilis, PN, and bromelain from pineapple stem, BR) and one transferase (γ-glutamyl transpeptidase from Bacillus subtilis, GGT). Immobilized PN and BR have been exploited in the synthesis of modified nucleosides and in a bench-scale packed-bed reactor for the protein stabilization of a Sauvignon blanc wine, respectively. In addition, in these cases, the new enzyme derivatives provided improved results compared to those previously described.
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15
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16
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Koszelewski D, Borys F, Brodzka A, Ostaszewski R. Synthesis of Enantiomerically Pure 5,6-Dihydropyran-2-ones via Chemoenzymatic Sequential DKR-RCM Reaction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801819] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dominik Koszelewski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Filip Borys
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Anna Brodzka
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Ryszard Ostaszewski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
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17
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Akoh CC. Conducting Research at the Interface of Food Science and Nutrition. J Food Sci 2018; 83:2692-2696. [PMID: 30412306 DOI: 10.1111/1750-3841.13886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Casimir C Akoh
- Distinguished Research Professor, Dept. of Food Science and Technology, The Univ. of Georgia, Athens, GA 30602-2610, https://site.caes.uga.edu/lbcap/
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18
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19
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Liu K. Composition and Phosphorous Profile of High-Protein Rice Flour and Broken Rice, and Effects of Further Dry and Wet Processing. J AM OIL CHEM SOC 2018. [DOI: 10.1002/aocs.12040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Keshun Liu
- Grain Chemistry and Utilization Laboratory, National Small Grains and Potato Germplasm Research Unit; United States Department of Agriculture, Agricultural Research Service (USDA-ARS); 1691 S. 2700 West, Aberdeen ID, 83210 USA
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20
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Modification of chitosan-bead support materials with L-lysine and L-asparagine for α-amylase immobilization. Bioprocess Biosyst Eng 2017; 41:423-434. [PMID: 29222588 DOI: 10.1007/s00449-017-1876-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/04/2017] [Indexed: 10/18/2022]
Abstract
Maltose syrups have got wide-range utilizations in a variety of applications from bakery to drug-development. α-Amylases are among the most widely utilized industrial enzymes due to their high specificity in production of maltose syrup from starch. However, enzymes are not stable in ex vivo conditions towards alteration in pH, temperature, and such other parameters as high salt concentrations and impurities, where immobilization is required to advance the stability of the enzyme with which approach the requirement of isolation of the enzyme from media is eliminated as well. In this study, Termamyl® α-amylase was immobilized on the none-modified chitosan beads (NMCB), L-lysine-modified chitosan beads (LMCB), and L-asparagine-modified chitosan beads (AMCB) to assess effects of the support material on optimum conditions and kinetic parameters of the α-amylase activity in production of maltose from starch. Immobilization on NMCB, LMCB, and AMCB puts a strong influence on optimum pH, optimum temperature, stability, and kinetic parameters of α-amylase. Modification of chitosan beads with L-lysine and L-asparagine dramatically altered the overall immobilization yield, and enzyme's response to pH and temperature variations and the kinetic parameters. AMCB provided the best immobilization yield (49%), while LMCB only improved the yield by 2% from 22 to 24%.
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21
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Zhao X, Fu J, Wang H, Ribeiro A, Cavaco-Paulo A. Enzymatic coating of cotton with poly (ethylene glutarate). Process Biochem 2017. [DOI: 10.1016/j.procbio.2016.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Crofts N, Sugimoto K, Oitome NF, Nakamura Y, Fujita N. Differences in specificity and compensatory functions among three major starch synthases determine the structure of amylopectin in rice endosperm. PLANT MOLECULAR BIOLOGY 2017; 94:399-417. [PMID: 28466433 DOI: 10.1007/s11103-017-0614-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 04/19/2017] [Indexed: 05/07/2023]
Abstract
The lengths of amylopectin-branched chains are precise and influence the physicochemical properties of starch, which determine starch functionality. Three major isozymes of starch synthases (SSs), SSI, SSII(a), and SSIII(a), are primarily responsible for amylopectin chain elongation in the storage tissues of plants. To date, the majority of reported rice mutants were generated using japonica cultivars, which have almost inactive SSIIa. Although three SSs share some overlapping chain length preferences, whether they complement each other remains unknown due to the absence of suitable genetic combinations of materials. In this study, rice ss1/SS2a/SS3a and SS1/SS2a/ss3a were newly generated, and the chain length distribution patterns of all the possible combinations of presence and absence of SSI, SSIIa, and SSIIIa activities were compared. This study demonstrated that SSIIa can complement most SSI functions that use glucan chains with DP 6-7 to generate DP 8-12 chains but cannot fully compensate for the elongation of DP 16-19 chains. This suggests that SSIIa preferentially elongates outer but not inner chains of amylopectin. In addition, the results revealed that neither SSI nor SSIIIa compensate for SSIIa. Neither SSI nor SSIIa compensate for elongation of DP >30 by SSIIIa. SSIIa could not resolve the pleiotropic increase of SSI caused by the absence of SSIIIa; instead, SSIIa further elongated those branches elongated by SSI. These results revealed compensatory differences among three major SS isozymes responsible for lengths of amylopectin branches.
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Affiliation(s)
- Naoko Crofts
- Department of Biological Production, Akita Prefectural University, 241-438 Shimoshinjo Nakano Kaidobata-Nishi, Akita City, Akita, 010-0195, Japan
- Japan Society for the Promotion of Science (N.C.), Tokyo, Japan
| | - Kyohei Sugimoto
- Department of Biological Production, Akita Prefectural University, 241-438 Shimoshinjo Nakano Kaidobata-Nishi, Akita City, Akita, 010-0195, Japan
| | - Naoko F Oitome
- Department of Biological Production, Akita Prefectural University, 241-438 Shimoshinjo Nakano Kaidobata-Nishi, Akita City, Akita, 010-0195, Japan
| | - Yasunori Nakamura
- Department of Biological Production, Akita Prefectural University, 241-438 Shimoshinjo Nakano Kaidobata-Nishi, Akita City, Akita, 010-0195, Japan
- Akita Natural Science Laboratory, 25-44 Oiwake-Nishi, Tenno, Katagami City, Akita, 010-0101, Japan
| | - Naoko Fujita
- Department of Biological Production, Akita Prefectural University, 241-438 Shimoshinjo Nakano Kaidobata-Nishi, Akita City, Akita, 010-0195, Japan.
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23
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Improvingthecatalytic properties and stability of immobilized γ-glutamyltranspeptidase by post-immobilization with Pharmalyte MT 8-10.5. Int J Biol Macromol 2017; 105:1581-1586. [PMID: 28414108 DOI: 10.1016/j.ijbiomac.2017.04.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 03/22/2017] [Accepted: 04/11/2017] [Indexed: 11/20/2022]
Abstract
γ-Glutamyltranspeptidase (GGT) is a dimeric protein that specifically catalyzes the transfer of γ-glutamyl in the optimum pH range of 8.5-9.0, but has poor in vitro stability under the alkaline conditions. In the present work, GGT was immobilized on a mesoporoustitania oxide whisker (MTWs) carrier to afford MTWs-GGT that was further modified with PharmalyteMT (Phar) 8.0-10.5 to yield MTWs-GGT-Phar. Phar absorbed on MTWs-GGT to form a buffering layer with an isoelectric point of ∼9.2 that isolated the immobilized enzyme from the liquid bulk and significantly in proved the pH tolerance and stability of the immobilized GGT. The MTWs-GGT-Phar exhibited a stable enzyme activity in the pH range of 6.0-11.0 and an optimum temperature 10°C higher than GGT. Its pH stability at pH 11.0 and thermal stability at 50°C were respectively 23.7 times and 19.4 times higher than those of GGT. In addition, the affinity constant of MTWs-GGT-Phar towards GpNA (Km) was 0.597mM, slightly lower than that of free GGT, indicating that Phar had a protective effect on the structure of GGT.
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24
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Kim CS, Lee SK, Keum YS. Comparative studies of immobilized lipase- and acid-catalyzed fatty acid methyl ester synthesis for seed lipid analysis. Food Sci Biotechnol 2016; 25:771-776. [PMID: 30263335 DOI: 10.1007/s10068-016-0131-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 12/30/2015] [Accepted: 03/27/2016] [Indexed: 11/28/2022] Open
Abstract
Fatty acids are one of the most important nutrients in food. Acid- or base-catalyzed transesterification methods are commonly used for the analysis of fatty acids. However, several drawbacks were reported for these methods, including the isomerization and degradation of fatty acids. Lipase-catalyzed reactions are usually undertaken at mild conditions, preventing such problems. In this study, commercial resin-bound lipase from Candida antartica was tested for possible application in fatty acid methyl ester analysis. Experimental parameters, including temperature, reaction time, and re-cycling were evaluated. The optimized condition was (5-10 mg lipid, 0.5 mL of MeOH, and 50 mg Novozyme 435 in 2 mL toluene, 80°C for 1 h). In optimized condition, the lipase-catalyzed methods yielded similar results with the chemical method. In overall, lipase-catalyzed transesterification can be a useful alternative to acid-catalyzed methods for fatty acid analysis.
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Affiliation(s)
- Chang-Soo Kim
- Department of Bioresources and Food Science, College of Life and Environmental Sciences, Konkuk University, Seoul, 05029 Korea
| | - Si-Kyung Lee
- Department of Bioresources and Food Science, College of Life and Environmental Sciences, Konkuk University, Seoul, 05029 Korea
| | - Young Soo Keum
- Department of Bioresources and Food Science, College of Life and Environmental Sciences, Konkuk University, Seoul, 05029 Korea
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25
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Kim CS, Lim DH, Keum YS. Lipase-Catalyzed Synthesis of Fatty Acid Pyridylcarbinol Ester for the Analysis of Seed Lipids. J AM OIL CHEM SOC 2015. [DOI: 10.1007/s11746-015-2783-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Chang-Su Kim
- ; Department of Bioresources and Food Science, College of Life and Environmental Sciences; Konkuk University; 1 Hwayang-dong, Gwangjin-gu Seoul Republic of Korea
| | - Do-Hyung Lim
- ; Department of Bioresources and Food Science, College of Life and Environmental Sciences; Konkuk University; 1 Hwayang-dong, Gwangjin-gu Seoul Republic of Korea
| | - Young Soo Keum
- ; Department of Bioresources and Food Science, College of Life and Environmental Sciences; Konkuk University; 1 Hwayang-dong, Gwangjin-gu Seoul Republic of Korea
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26
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Choi JM, Han SS, Kim HS. Industrial applications of enzyme biocatalysis: Current status and future aspects. Biotechnol Adv 2015; 33:1443-54. [DOI: 10.1016/j.biotechadv.2015.02.014] [Citation(s) in RCA: 524] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 02/25/2015] [Accepted: 02/27/2015] [Indexed: 01/10/2023]
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27
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Spohner SC, Müller H, Quitmann H, Czermak P. Expression of enzymes for the usage in food and feed industry with Pichia pastoris. J Biotechnol 2015; 202:118-34. [DOI: 10.1016/j.jbiotec.2015.01.027] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 12/28/2014] [Accepted: 01/07/2015] [Indexed: 12/29/2022]
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28
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Currin A, Swainston N, Day PJ, Kell DB. Synthetic biology for the directed evolution of protein biocatalysts: navigating sequence space intelligently. Chem Soc Rev 2015; 44:1172-239. [PMID: 25503938 PMCID: PMC4349129 DOI: 10.1039/c4cs00351a] [Citation(s) in RCA: 251] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Indexed: 12/21/2022]
Abstract
The amino acid sequence of a protein affects both its structure and its function. Thus, the ability to modify the sequence, and hence the structure and activity, of individual proteins in a systematic way, opens up many opportunities, both scientifically and (as we focus on here) for exploitation in biocatalysis. Modern methods of synthetic biology, whereby increasingly large sequences of DNA can be synthesised de novo, allow an unprecedented ability to engineer proteins with novel functions. However, the number of possible proteins is far too large to test individually, so we need means for navigating the 'search space' of possible protein sequences efficiently and reliably in order to find desirable activities and other properties. Enzymologists distinguish binding (Kd) and catalytic (kcat) steps. In a similar way, judicious strategies have blended design (for binding, specificity and active site modelling) with the more empirical methods of classical directed evolution (DE) for improving kcat (where natural evolution rarely seeks the highest values), especially with regard to residues distant from the active site and where the functional linkages underpinning enzyme dynamics are both unknown and hard to predict. Epistasis (where the 'best' amino acid at one site depends on that or those at others) is a notable feature of directed evolution. The aim of this review is to highlight some of the approaches that are being developed to allow us to use directed evolution to improve enzyme properties, often dramatically. We note that directed evolution differs in a number of ways from natural evolution, including in particular the available mechanisms and the likely selection pressures. Thus, we stress the opportunities afforded by techniques that enable one to map sequence to (structure and) activity in silico, as an effective means of modelling and exploring protein landscapes. Because known landscapes may be assessed and reasoned about as a whole, simultaneously, this offers opportunities for protein improvement not readily available to natural evolution on rapid timescales. Intelligent landscape navigation, informed by sequence-activity relationships and coupled to the emerging methods of synthetic biology, offers scope for the development of novel biocatalysts that are both highly active and robust.
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Affiliation(s)
- Andrew Currin
- Manchester Institute of Biotechnology , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK . ; http://dbkgroup.org/; @dbkell ; Tel: +44 (0)161 306 4492
- School of Chemistry , The University of Manchester , Manchester M13 9PL , UK
- Centre for Synthetic Biology of Fine and Speciality Chemicals (SYNBIOCHEM) , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK
| | - Neil Swainston
- Manchester Institute of Biotechnology , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK . ; http://dbkgroup.org/; @dbkell ; Tel: +44 (0)161 306 4492
- Centre for Synthetic Biology of Fine and Speciality Chemicals (SYNBIOCHEM) , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK
- School of Computer Science , The University of Manchester , Manchester M13 9PL , UK
| | - Philip J. Day
- Manchester Institute of Biotechnology , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK . ; http://dbkgroup.org/; @dbkell ; Tel: +44 (0)161 306 4492
- Centre for Synthetic Biology of Fine and Speciality Chemicals (SYNBIOCHEM) , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK
- Faculty of Medical and Human Sciences , The University of Manchester , Manchester M13 9PT , UK
| | - Douglas B. Kell
- Manchester Institute of Biotechnology , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK . ; http://dbkgroup.org/; @dbkell ; Tel: +44 (0)161 306 4492
- School of Chemistry , The University of Manchester , Manchester M13 9PL , UK
- Centre for Synthetic Biology of Fine and Speciality Chemicals (SYNBIOCHEM) , The University of Manchester , 131, Princess St , Manchester M1 7DN , UK
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Fraatz MA, Rühl M, Zorn H. Food and feed enzymes. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014; 143:229-56. [PMID: 23873095 DOI: 10.1007/10_2013_235] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Humans have benefited from the unique catalytic properties of enzymes, in particular for food production, for thousands of years. Prominent examples include the production of fermented alcoholic beverages, such as beer and wine, as well as bakery and dairy products. The chapter reviews the historic background of the development of modern enzyme technology and provides an overview of the industrial food and feed enzymes currently available on the world market. The chapter highlights enzyme applications for the improvement of resource efficiency, the biopreservation of food, and the treatment of food intolerances. Further topics address the improvement of food safety and food quality.
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Affiliation(s)
- Marco Alexander Fraatz
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 58, 35392, Giessen, Germany
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30
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da Costa JP, Oliveira-Silva R, Daniel-da-Silva AL, Vitorino R. Bionanoconjugation for Proteomics applications — An overview. Biotechnol Adv 2014; 32:952-70. [DOI: 10.1016/j.biotechadv.2014.04.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/15/2014] [Accepted: 04/26/2014] [Indexed: 12/29/2022]
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31
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Aissaoui N, Bergaoui L, Boujday S, Lambert JF, Méthivier C, Landoulsi J. Enzyme immobilization on silane-modified surface through short linkers: fate of interfacial phases and impact on catalytic activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:4066-4077. [PMID: 24635492 DOI: 10.1021/la404935q] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We investigated the mechanism of enzyme immobilization on silanized surfaces through coupling agents (cross-linkers) in order to understand the role of these molecules on interfacial processes and their effect on catalytic activity. To this end, we used a model multimeric enzyme (G6PDH) and several cross-linking molecules with different chemical properties, including the nature of the end-group (-NCO, -NCS, -CHO), the connecting chain (aliphatic vs aromatic), and geometrical constraints (meta vs para-disubstituted aromatics). There did not seem to be radical differences in the mechanism of enzyme adsorption according to the linker used as judged from QCM-D, except that in the case of DIC (1,4-phenylene diisocyanate) the adsorption occurred more rapidly. In contrast, the nature of the cross-linker exerted a strong influence on the amount of enzyme immobilized as estimated from XPS, and more unexpectedly on the stability of the underlying silane layer. DIC, PDC (1,4-phenylene diisothiocyanate), or GA (glutaraldehyde) allowed successful enzyme immobilization. When the geometry of the linker was changed from 1,4-phenylene diisothiocyanate to 1,3-phenylene diisothiocyanate (MDC), the silane layer was subjected to degradation, upon enzyme adsorption, and the amount of immobilized molecules was significantly lowered. TE (terephtalaldehyde) and direct enzyme deposition without cross-linker were similar to MDC. The organization of immobilized enzymes also depended on the immobilization procedure, as different degrees of aggregation were observed by AFM. A correlation between the size of the aggregates and the catalytic properties of the enzyme was established, suggesting that aggregation may enhance the thermostability of the multimeric enzyme, probably through a compaction of the 3D structure.
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Affiliation(s)
- Nesrine Aissaoui
- Sorbonne Universités, UPMC Univ Paris 06 , F-75005, Paris, France
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32
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Müller CR, Pérez-Sánchez M, Domínguez de María P. Benzaldehyde lyase-catalyzed diastereoselective C-C bond formation by simultaneous carboligation and kinetic resolution. Org Biomol Chem 2014; 11:2000-4. [PMID: 23280121 DOI: 10.1039/c2ob27344f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enzymes create chiral microenvironments that may simultaneously generate several stereogenic centers in the same catalytic cycle, broadening the possibilities of biocatalysis. Benzaldehyde lyase (BAL) affords highly diastereoselective α-hydroxy-ketones by simultaneously performing ligation and kinetic resolution of a racemic aldehyde. Thus, to the well-known enantioselective BAL-carboligation of aldehydes (C-C bond formation), another property, namely diastereoselectivity, is added in this paper for the first time.
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Affiliation(s)
- Christoph R Müller
- Institut für Technische und Makromolekulare Chemie (ITMC), RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
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33
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Pogorilyi RP, Melnyk IV, Zub YL, Seisenbaeva GA, Kessler VG. Immobilization of urease on magnetic nanoparticles coated by polysiloxane layers bearing thiol- or thiol- and alkyl-functions. J Mater Chem B 2014; 2:2694-2702. [DOI: 10.1039/c4tb00018h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An optimized strategy for production of a highly active magnetic formulation of urease has been elaborated via systematic studies of the enzyme immobilization on magnetite nanoparticles coated by functional siloxane layers.
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Affiliation(s)
- R. P. Pogorilyi
- Chuiko Institute of Surface Chemistry
- National Academy of Sciences of Ukraine
- Kyiv 03164, Ukraine
| | - I. V. Melnyk
- Chuiko Institute of Surface Chemistry
- National Academy of Sciences of Ukraine
- Kyiv 03164, Ukraine
| | - Y. L. Zub
- Chuiko Institute of Surface Chemistry
- National Academy of Sciences of Ukraine
- Kyiv 03164, Ukraine
| | - G. A. Seisenbaeva
- Department of Chemistry
- Swedish University of Agricultural Sciences
- 750 07 Uppsala, Sweden
| | - V. G. Kessler
- Department of Chemistry
- Swedish University of Agricultural Sciences
- 750 07 Uppsala, Sweden
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34
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Synthesisof fructose laurate esters catalyzed by a CALB-displaying Pichia pastoris whole-cell biocatalyst in a non-aqueous system. BIOTECHNOL BIOPROC E 2013. [DOI: 10.1007/s12257-012-0511-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Crofts N, Abe K, Aihara S, Itoh R, Nakamura Y, Itoh K, Fujita N. Lack of starch synthase IIIa and high expression of granule-bound starch synthase I synergistically increase the apparent amylose content in rice endosperm. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2012; 193-194:62-69. [PMID: 22794919 DOI: 10.1016/j.plantsci.2012.05.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 05/09/2012] [Accepted: 05/10/2012] [Indexed: 05/18/2023]
Abstract
Rice endosperm starch is composed of 0-30% linear amylose, which is entirely synthesized by granule-bound starch synthase I (GBSSI: encoded by Waxy, Wx). The remainder consists of branched amylopectin and is elongated by multiple starch synthases (SS) including SSI, IIa and IIIa. Typical japonica rice lacks active SSIIa and contains a low expressing Wx(b) causing a low amylose content (ca. 20%). WAB2-3 (SS3a/Wx(a)) lines generated by the introduction of a dominant indica Wx(a) into a japonica waxy mutant (SS3a/wx) exhibit elevated GBSSI and amylose content (ca. 25%). The japonica ss3a mutant (ss3a/Wx(b)) shows a high amylose content (ca. 30%), decreased long chains of amylopectin and increased GBSSI levels. To investigate the functional relationship between the ss3a and Wx(a) genes, the ss3a/Wx(a) line was generated by crossing ss3a/Wx(b) with SS3a/Wx(a), and the starch properties of this line were examined. The results show that the apparent amylose content of the ss3a/Wx(a) line was increased (41.3%) compared to the parental lines. However, the GBSSI quantity did not increase compared to the SS3a/Wx(a) line. The amylopectin branch structures were similar to the ss3a/Wx(b) mutant. Therefore, Wx(a) and ss3a synergistically increase the apparent amylose content in rice endosperm, and the possible reasons for this increase are discussed.
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Affiliation(s)
- Naoko Crofts
- Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita City, Akita 010-0195, Japan.
| | - Katsumi Abe
- Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-no-cho, Nishi-ku, Niigata 950-2181, Japan.
| | - Satomi Aihara
- Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita City, Akita 010-0195, Japan.
| | - Rumiko Itoh
- Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita City, Akita 010-0195, Japan. i---love--
| | - Yasunori Nakamura
- Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita City, Akita 010-0195, Japan.
| | - Kimiko Itoh
- Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-no-cho, Nishi-ku, Niigata 950-2181, Japan; Center for Transdisciplinary Research Institute, Niigata University, 8050 Ikarashi 2-no-cho, Nishi-ku, Niigata 950-2181, Japan.
| | - Naoko Fujita
- Department of Biological Production, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita City, Akita 010-0195, Japan.
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Khan MJ, Husain Q, Azam A. Immobilization of porcine pancreatic α-amylase on magnetic Fe2O3 nanoparticles: Applications to the hydrolysis of starch. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-011-0105-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chang SW, Liu PT, Hsu LC, Chen CS, Shaw JF. Integrated biocatalytic process for trehalose production and separation from rice hydrolysate using a bioreactor system. Food Chem 2012; 134:1745-53. [PMID: 23442616 DOI: 10.1016/j.foodchem.2012.03.065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 02/03/2012] [Accepted: 03/14/2012] [Indexed: 10/28/2022]
Abstract
Rice starch can be hydrolyzed into maltose for trehalose bioconversion by enzymatic methods. In this study, we have successfully established an efficient production system for our recombinant PTTS in large scale. Three bio-treatments were developed to simplify the separation and purification of trehalose from complex rice saccharified liquid. The trehalose conversion rate of 64.63±4.05% at 30 °C can be reached using rice hydrolysate as the substrate in a 5l fermentor system. By 1% of raw material koji fermentation, the highest concentration of bioethanol (3.61±0.07%) was obtained at 30 °C for 36 h. After 12h of reaction time, the gluconic acid (24.47±0.33 mM) was successfully produced by glucose oxidase (40 U/g rice) using residual glucose as a substrate. After the batch/continuous ionic exchange process, the trehalose can be successfully separated, crystallized and identified as 92.6±0.02% purity and 94.2% of the recovery yield, respectively.
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Affiliation(s)
- Shu Wei Chang
- Department of Medicinal Botanicals and Health Care, Dayeh University, Dacun, Changhua 51591, Taiwan
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An energy-saving glutathione production method from low-temperature cooked rice using amylase-expressing Saccharomyces cerevisiae. Biotechnol J 2012; 7:686-9. [DOI: 10.1002/biot.201100432] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 01/12/2012] [Accepted: 01/30/2012] [Indexed: 11/07/2022]
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Wu CS, Liao HT. Polycaprolactone-Based Green Renewable Ecocomposites Made from Rice Straw Fiber: Characterization and Assessment of Mechanical and Thermal Properties. Ind Eng Chem Res 2012. [DOI: 10.1021/ie202002p] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Chin-San Wu
- Department of Chemical and Biochemical Engineering, Kao Yuan University, Kaohsiung County, Taiwan 82101,
Republic of China
| | - Hsin-Tzu Liao
- Department of Chemical and Biochemical Engineering, Kao Yuan University, Kaohsiung County, Taiwan 82101,
Republic of China
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Foley P, Kermanshahi pour A, Beach ES, Zimmerman JB. Derivation and synthesis of renewable surfactants. Chem Soc Rev 2012; 41:1499-518. [DOI: 10.1039/c1cs15217c] [Citation(s) in RCA: 196] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Garcia-Galan C, Berenguer-Murcia Á, Fernandez-Lafuente R, Rodrigues RC. Potential of Different Enzyme Immobilization Strategies to Improve Enzyme Performance. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100534] [Citation(s) in RCA: 1243] [Impact Index Per Article: 95.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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42
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Kumagai Y, Usuki H, Yamamoto Y, Yamasato A, Arima J, Mukaihara T, Hatanaka T. Characterization of calcium ion sensitive region for β-Mannanase from Streptomyces thermolilacinus. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2011; 1814:1127-33. [DOI: 10.1016/j.bbapap.2011.04.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 04/08/2011] [Accepted: 04/27/2011] [Indexed: 10/18/2022]
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43
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Godoy CA, de las Rivas B, Bezbradica D, Bolivar JM, López-Gallego F, Fernandez-Lorente G, Guisan JM. Reactivation of a thermostable lipase by solid phase unfolding/refolding. Enzyme Microb Technol 2011; 49:388-94. [DOI: 10.1016/j.enzmictec.2011.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 06/17/2011] [Accepted: 06/23/2011] [Indexed: 10/18/2022]
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Cheng SH, Kao KC, Liao WN, Chen LM, Mou CY, Lee CH. Site-specific immobilization of cytochrome c on mesoporous silica through metal affinity adsorption to enhance activity and stability. NEW J CHEM 2011. [DOI: 10.1039/c1nj20255c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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de Carvalho CCCR. Enzymatic and whole cell catalysis: finding new strategies for old processes. Biotechnol Adv 2010; 29:75-83. [PMID: 20837129 DOI: 10.1016/j.biotechadv.2010.09.001] [Citation(s) in RCA: 193] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Accepted: 09/06/2010] [Indexed: 10/19/2022]
Abstract
The use of enzymes and whole bacterial cells has allowed the production of a plethora of compounds that have been used for centuries in foods and beverages. However, only recently we have been able to master techniques that allow the design and development of new biocatalysts with high stability and productivity. Rational redesign and directed evolution have lead to engineered enzymes with new characteristics whilst the understanding of adaptation mechanisms in bacterial cells has allowed their use under new operational conditions. Bacteria able to thrive under the most extreme conditions have also provided new and extraordinary catalytic processes. In this review, the new tools available for the improvement of biocatalysts are presented and discussed.
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Affiliation(s)
- Carla C C R de Carvalho
- IBB-Institute for Biotechnology and Bioengineering, Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
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Domínguez de María P. Minimal Hydrolases: Organocatalytic Ring-Opening Polymerizations Catalyzed by Naturally Occurring Carboxylic Acids. ChemCatChem 2010. [DOI: 10.1002/cctc.201000030] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Site-directed mutagenesis improves the thermostability of a recombinant Picrophilus torridus trehalose synthase and efficiency for the production of trehalose from sweet potato starch. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.08.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Chang SW, Chang WH, Lee MR, Yang TJ, Yu NY, Chen CS, Shaw JF. Simultaneous production of trehalose, bioethanol, and high-protein product from rice by an enzymatic process. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:2908-2914. [PMID: 20131789 DOI: 10.1021/jf903382e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Rice is a starch-rich raw material that can be used for trehalose production. It can be hydrolyzed with alpha-amylase, beta-amylase, and pullulanase to produce high-maltose content of rice saccharified solution for bioconversion of maltose into trehalose by trehalose synthase (TSase). For this purpose, an efficient enzymatic procedure has been successfully developed to simultaneously produce value-added trehalose, bioethanol, and high-protein product from rice as substrate. The highest maltose yield produced from the liquefied rice starch hydrolysate was 82.4 +/- 2.8% at 50 degrees C and pH 5.0 for 21-22 h. The trehalose conversion rate can reach at least 50% at 50 degrees C and pH 5.0 for 20-24 h by a novel thermostable recombinant Picrophilus torridus trehalose synthase (PTTS). All residual sugar, except trehalose, can be fully hydrolyzed by glucoamylase into glucose for further bioethanol production. The insoluble byproduct containing high yields of protein (75.99%) and dietary fiber (14.01%) can be processed as breakfast cereal product, health food, animal forage, etc. The conversion yield of bioethanol was about 98% after 64 h of fermentation time by Saccharomyces cerevisiae without any artificial culture solution addition. Ethanol can easily be separated from trehalose by distillation with a high recovery yield and purity of crystalline trehalose of 92.5 +/- 8.7% and 92.3%, respectively.
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Affiliation(s)
- Shu-Wei Chang
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung 402, Taiwan
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Fernandez-Lafuente R. Stabilization of multimeric enzymes: Strategies to prevent subunit dissociation. Enzyme Microb Technol 2009. [DOI: 10.1016/j.enzmictec.2009.08.009] [Citation(s) in RCA: 503] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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