1
|
Cai L, Cheng Y, Pan Y, Wang L, Zhao X, Gao W, Huang P, Cui C. Enzymatic synthesis and sensory evaluation of the novel kokumi compound N-butyryl phenylalanine. Food Chem 2024; 455:139910. [PMID: 38833857 DOI: 10.1016/j.foodchem.2024.139910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/10/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
In this study, food-grade glutamine transaminase (TGase) was utilized for the green-catalyzed preparation of N-butyryl amino acids. For improving the reusability of the enzyme preparation, immobilized TG enzyme (94.23% immobilization rate) was prepared. Furthermore, the yield of N-butyryl phenylalanine (BP) synthesized by TGase was obtained as 20.73% by one-factor experiment. The BP synthesis yield of immobilized TGase was 95.03% of that of TGase and remained above 60% of the initial enzyme activity after five runs. The sensory evaluation and E-tongue results showed that the addition of BP significantly increased the umami, saltiness, and richness intensities of the samples, and decreased the intensities of sourness, bitterness, and aftertaste-B. The molecular docking results indicated that hydrogen bonding dominated the binding of BP to taste receptors in the taste presentation mechanism of BP. These results confirmed the potential of BP as a flavor enhancer with promising applications in the food industry.
Collapse
Affiliation(s)
- Lei Cai
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Yuqin Cheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Yuqing Pan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Lu Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Xu Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Wenxiang Gao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Pimiao Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Chun Cui
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China.
| |
Collapse
|
2
|
Yeast Lipid Produced through Glycerol Conversions and Its Use for Enzymatic Synthesis of Amino Acid-Based Biosurfactants. Int J Mol Sci 2022; 24:ijms24010714. [PMID: 36614154 PMCID: PMC9820740 DOI: 10.3390/ijms24010714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
The aim of the present work was to obtain microbial lipids (single-cell oils and SCOs) from oleaginous yeast cultivated on biodiesel-derived glycerol and subsequently proceed to the enzymatic synthesis of high-value biosurfactant-type molecules in an aqueous medium, with SCOs implicated as acyl donors (ADs). Indeed, the initial screening of five non-conventional oleaginous yeasts revealed that the most important lipid producer was the microorganism Cryptococcus curvatus ATCC 20509. SCO production was optimised according to the nature of the nitrogen source and the initial concentration of glycerol (Glyc0) employed in the medium. Lipids up to 50% w/w in dry cell weight (DCW) (SCOmax = 6.1 g/L) occurred at Glyc0 ≈ 70 g/L (C/N ≈ 80 moles/moles). Thereafter, lipids were recovered and were subsequently used as ADs in the N-acylation reaction catalysed by aminoacylases produced from Streptomyces ambofaciens ATCC 23877 under aqueous conditions, while Candida antarctica lipase B (CALB) was used as a reference enzyme. Aminoacylases revealed excellent activity towards the synthesis of acyl-lysine only when free fatty acids (FAs) were used as the AD, and the rare regioselectivity in the α-amino group, which has a great impact on the preservation of the functional side chains of any amino acids or peptides. Aminoacylases presented higher α-oleoyl-lysine productivity and final titer (8.3 g/L) with hydrolysed SCO than with hydrolysed vegetable oil. The substrate specificity of both enzymes towards the three main FAs found in SCO was studied, and a new parameter was defined, viz., Specificity factor (Sf), which expresses the relative substrate specificity of an enzyme towards a FA present in a FA mixture. The Sf value of aminoacylases was the highest with palmitic acid in all cases tested, ranging from 2.0 to 3.0, while that of CALB was with linoleic acid (0.9-1.5). To the best of our knowledge, this is the first time that a microbial oil has been successfully used as AD for biosurfactant synthesis. This bio-refinery approach illustrates the concept of a state-of-the-art combination of enzyme and microbial technology to produce high-value biosurfactants through environmentally friendly and economically sound processes.
Collapse
|
3
|
Guo J, Sun L, Zhang F, Sun B, Xu B, Zhou Y. Review: Progress in synthesis, properties and application of amino acid surfactants. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
4
|
Li Y, Huang J, Lin L, Xu H. Study on the synthesis and performance of sodium 2-laurylamido isobutyrate. TENSIDE SURFACT DET 2022. [DOI: 10.1515/tsd-2021-2377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present work, sodium 2-laurylamido isobutyrate was synthesized from 2-aminoisobutyric acid, NaOH and lauroyl chloride by the Schotten-Baumann condensation. Fourier transform infrared spectroscopy, mass spectroscopy and nuclear magnetic resonance spectroscopy were used to characterize the products, and confirming the successful synthesis of sodium 2-laurylamido isobutyrate. The influence of temperature on the surface tension of sodium 2-laurylamido isobutyrate was studied, comparing the chemical properties of the surface with those of sodium N-lauroyl sarcosinate. The results indicate that both surfactants have a similar pC
20, while the critical micelle concentration (CMC) and the surface tension at the critical micelle concentration (γ
CMC) of sodium 2-laurylamido isobutyrate are higher than those of sodium N-lauroyl sarcosinate. Further studies on the thermodynamic parameters of sodium 2-laurylamido isobutyrate and sodium N-lauroyl sarcosinate indicate that the formation of micelles is a spontaneous exothermic process mainly driven by entropy. According to the dynamic surface tension of sodium 2-laurylamido isobutyrate and sodium N-lauroyl sarcosinate, the molecular adsorption of the two components mixture change from the initial diffusion controlled adsorption to the later mixed dynamic controlled adsorption.
Collapse
Affiliation(s)
- Ying Li
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , P. R. China
| | - Jian Huang
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , P. R. China
| | - Liangliang Lin
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , P. R. China
| | - Hujun Xu
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , P. R. China
| |
Collapse
|
5
|
Okulus M, Rychlicka M, Gliszczyńska A. Enzymatic Production of Biologically Active 3-Methoxycinnamoylated Lysophosphatidylcholine via Regioselctive Lipase-Catalyzed Acidolysis. Foods 2021; 11:7. [PMID: 35010133 PMCID: PMC8750904 DOI: 10.3390/foods11010007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/12/2021] [Accepted: 12/16/2021] [Indexed: 11/16/2022] Open
Abstract
Enzymatic acidolysis of egg-yolk phosphatidylcholine (PC) with 3-methoxycinnamic acid (3-OMe-CA) was investigated to produce biologically active 3-methoxycinnamoylated phospholipids. Four commercially available lipases were screened for their ability to incorporate 3-OMe-CA into PC. The results showed that Novozym 435 is the most effective biocatalyst for this process, while during the examination of organic solvents, heptane was found propriate reaction medium. The other reaction parameters including the substrate molar ratio, enzyme load and reaction time were designed using an experimental factorial design method. According to three-level-3-factor Box-Behnken model it was shown that all of studied parameters are crucial variables for the maximization of the synthesis of structured PLs. The optimum conditions derived via response surface methodology (RSM) were: 30% of lipase of the total weight of substrates, 1:15 molar ration of PC/3-OMe-CA and reaction time 4 days. The process of acidolysis performed on the increased scale at optimized parameters afforded two products. The major product, 3-methoxycinnamoylated lysophosphatidylcholine (3-OMe-CA-LPC) was isolated in high 48% yield, while 3-methoxycinnamoylated phosphatidylcholine (3-OMe-CA-PC) was produced in trace amount only in 1.2% yield. Obtained results indicate that presented biotechnological method of synthesis of 3-methoxycinnamoylated lysophosphatidylcholine is competitive to the previously reported chemical one.
Collapse
Affiliation(s)
| | | | - Anna Gliszczyńska
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland; (M.O.); (M.R.)
| |
Collapse
|
6
|
Kaur G, Singh N, Rajor A. Ofloxacin adsorptive interaction with rice husk ash: Parametric and exhausted adsorbent disposability study. JOURNAL OF CONTAMINANT HYDROLOGY 2021; 236:103737. [PMID: 33213886 DOI: 10.1016/j.jconhyd.2020.103737] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/26/2020] [Accepted: 10/23/2020] [Indexed: 05/22/2023]
Abstract
The present study investigates the adsorptive interaction of rice husk ash (RHA) with Ofloxacin (OFL) antibiotic. The OFL loaded RHA was studied for its disposability by solidification to find its possible use as a building material. Further, toxicity analysis of leachate from the solidified RHA was also studied for probable leaching of OFL. The effects of adsorption parameters such as initial pH, the dosage of RHA (m), initial OFL concentration (C0), and contact time (t) on the responses % OFL removal (X1) and adsorption capacity (mg/g) (X2) were evaluated using the central composite design (CCD) based on response surface method (RSM). Kinetic and thermodynamic studies were performed at optimized parameters, and adsorption equilibrium data were illustrated by using Langmuir, Redlich-Peterson (R-P), and Tempkin isotherm models. Optimum condition was found as m = 7.94 g/L, t = 430 min and pH = 6, and at this actual responses X1 and X2 were evaluated as 79.71% and 6.28 mg/g, respectively. Pseudo-first-order kinetic fitted best for the adsorption kinetic data. Toxicity analysis of leachate from solidified RHA indicated that most of the OFL was encapsulated inside the cement and the OFL present in leachate is not sufficient to eradicate the growth of E.coli and Bacillus subtilis.
Collapse
Affiliation(s)
- Gurleenjot Kaur
- School of Energy and Environment, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Neetu Singh
- Department of Chemical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India.
| | - Anita Rajor
- School of Energy and Environment, Thapar Institute of Engineering and Technology, Patiala 147004, India
| |
Collapse
|
7
|
Ktata A, Karray A, Mnif I, Bezzine S. Enhancement of Aeribacillus pallidus strain VP3 lipase catalytic activity through optimization of medium composition using Box-Behnken design and its application in detergent formulations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:12755-12766. [PMID: 32006338 DOI: 10.1007/s11356-020-07853-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
Lipases are hydrolytic enzymes owing much importance in industrial applications. These enzyme-based detergents are ecofriendly and produce a wastewater with low level of COD (chemical oxygen demand). In the present work, a novel halophilous, thermoalkaline, and detergent-tolerant lipase produced by a newly isolated Aeribacillus pallidus strain VP3 was studied. Considerable interest has been given to this lipase by the improvement of its catalytic activity through the optimization of the pH, the (C/N) ratio, and the inoculum size, using the response surface methodology based on the Box-Behnken design of experiments. A total of 16 experiments were conducted, and the optimized pH, (C/N) ratio, and inoculum size were 10, 1, and 0.3, respectively. The results of the analysis of variance (ANOVA) test indicated that the established model was significant (p value < 0.05). The optimization of the production conditions leads to 2.83-fold of increase in the catalytic activity calculated as the ratio of the activity obtained after optimization (68 U) and the initial activity before optimization (24 U). All in all, the lipase of Aeribacillus pallidus could be considered as a potential candidate to be incorporated in detergent formulations since it shows a good stability towards detergents and wash performance.
Collapse
Affiliation(s)
- Ameni Ktata
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, Université de Sfax-Tunisia, Sfax, Tunisia
| | - Aida Karray
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, Université de Sfax-Tunisia, Sfax, Tunisia.
| | - Ines Mnif
- Unité d'Enzymes et Bioconversion, Sfax, Tunisia
| | - Sofiane Bezzine
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, Université de Sfax-Tunisia, Sfax, Tunisia
| |
Collapse
|
8
|
Yang J, Zhou Y, Yang B, Huang L, Liu C, Han F, Xu B. Comparative Study on the Syntheses and Properties of Three N‐lauroyl Aromatic Amino Acid Surfactants. J SURFACTANTS DETERG 2020. [DOI: 10.1002/jsde.12405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jian Yang
- Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and IngredientsBeijing Technology and Business University No. 11 Fucheng Road, Beijing 100048 China
| | - Yawen Zhou
- Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and IngredientsBeijing Technology and Business University No. 11 Fucheng Road, Beijing 100048 China
| | - Bo Yang
- Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and IngredientsBeijing Technology and Business University No. 11 Fucheng Road, Beijing 100048 China
| | - Luyang Huang
- Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and IngredientsBeijing Technology and Business University No. 11 Fucheng Road, Beijing 100048 China
| | - Changyao Liu
- Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and IngredientsBeijing Technology and Business University No. 11 Fucheng Road, Beijing 100048 China
| | - Fu Han
- Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and IngredientsBeijing Technology and Business University No. 11 Fucheng Road, Beijing 100048 China
| | - Baocai Xu
- Beijing Key Laboratory of Flavor Chemistry, Beijing Higher Institution Engineering Research Center of Food Additives and IngredientsBeijing Technology and Business University No. 11 Fucheng Road, Beijing 100048 China
| |
Collapse
|
9
|
Topical Delivery of Meloxicam using Liposome and Microemulsion Formulation Approaches. Pharmaceutics 2020; 12:pharmaceutics12030282. [PMID: 32245190 PMCID: PMC7151031 DOI: 10.3390/pharmaceutics12030282] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/11/2020] [Accepted: 03/19/2020] [Indexed: 01/29/2023] Open
Abstract
The aim of this study is to develop, characterize and compare conventional liposome, deformable liposome (transfersome) and microemulsion formulations as potential topical delivery systems for meloxicam. Liposomes were characterized in terms of vesicle size, zeta potential and entrapment efficiency. For microemulsions, particle size, electrical conductivity and viscosity studies were performed to assess the structure of the investigated systems. An ex vivo skin permeation study has been conducted to compare these formulations. The dermal and transdermal delivery of meloxicam using these formulations can be a promising alternative to conventional oral delivery of non-steroidal anti-inflammatory drugs (NSAIDs) with enhanced local and systemic onset of action and reduced side effects.
Collapse
|
10
|
Muniandy M, Lasekan O, Ghazali HM, Rahman MBA. LIPASE - CATALYZED FORMATION OF PENTYL NONANOATE USING SCREENED IMMOBILIZED LIPASE FROM Rhizomucor meihei. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2019. [DOI: 10.1590/0104-6632.20190363s20180419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Kumar A, Thakur A, Panesar PS. A comparative study on experimental and response surface optimization of lactic acid synergistic extraction using green emulsion liquid membrane. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.09.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
12
|
Dettori L, Jelsch C, Guiavarc’h Y, Delaunay S, Framboisier X, Chevalot I, Humeau C. Molecular rules for selectivity in lipase-catalysed acylation of lysine. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.07.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
13
|
Dettori L, Ferrari F, Framboisier X, Paris C, Guiavarc'h Y, Hôtel L, Aymes A, Leblond P, Humeau C, Kapel R, Chevalot I, Aigle B, Delaunay S. An aminoacylase activity from Streptomyces ambofaciens catalyzes the acylation of lysine on α-position and peptides on N-terminal position. Eng Life Sci 2018; 18:589-599. [PMID: 32624939 DOI: 10.1002/elsc.201700173] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 03/16/2018] [Accepted: 04/12/2018] [Indexed: 11/11/2022] Open
Abstract
The presence of aminoacylase activities was investigated in a crude extract of Streptomyces ambofaciens ATCC23877. First activities catalyzing the hydrolysis of N-α or ε-acetyl-L-lysine were identified. Furthermore, the acylation of lysine and different peptides was studied and compared with results obtained with lipase B of Candida antarctica (CALB). Different regioselectivities were demonstrated for the two classes of enzymes. CALB was able to catalyze acylation only on the ε-position whereas the crude extract from S. ambofaciens possessed the rare ability to catalyze the N-acylation on the α-position of the lysine or of the amino-acid in N-terminal position of peptides. Two genes, SAM23877_1485 and SAM23877_1734, were identified in the genome of Streptomyces ambofaciens ATCC23877 whose products show similarities with the previously identified aminoacylases from Streptomyces mobaraensis. The proteins encoded by these two genes were responsible for the major aminoacylase hydrolytic activities. Furthermore, we show that the hydrolysis of N-α-acetyl-L-lysine could be attributed to the product of SAM23877_1734 gene.
Collapse
Affiliation(s)
| | | | | | - Cédric Paris
- Université de Lorraine Plateau d'Analyse Structurale et Métabolomique Nancy France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Novaes FJM, Itabaiana Junior I, Sutili FK, Marriott PJ, Bizzo HR, Aquino Neto FRD, Souza ROMAD, Rezende CM. Lipase-catalysed esters synthesis of cafestol and kahweol. Food Chem 2018; 259:226-233. [PMID: 29680048 DOI: 10.1016/j.foodchem.2018.03.111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 03/14/2018] [Accepted: 03/25/2018] [Indexed: 12/14/2022]
Abstract
Cafestol and kahweol (C&K), two coffee diterpene alcohols with structural similarity which exhibit anticarcinogenic effects, were isolated from green coffee Arabica beans, followed by their lipase-catalysed esterification and purification by preparative high-performance liquid chromatography (HPLC). The isolation and enzymatic synthesis parameters of C&K esters were studied, with the latter optimised by a Central Composite Design; both procedures were monitored by gas chromatography. Scale up and improved isolation conditions resulted in 1.29 g of C&K, with 98% purity from 300 g of green Arabica beans. The highest C&K ester yields were observed using an alcohol:fatty acid molar ratio of 1:5, 73.3 mg mL-1 of CAL-B enzyme, 70 °C and 240 rpm for 3 days in toluene, leading to 85-88% conversion among a variety of tested C&K esters, including n-C14:0-C20:0, C18:1, C18:2 and C18:3.
Collapse
Affiliation(s)
- Fábio Junior Moreira Novaes
- Universidade Federal do Rio de Janeiro, Instituto de Química, Laboratório de Análise de Aromas, Avenida Athos da Silveira Ramos, 149, Bloco A, Sala 626, Rio de Janeiro, RJ 21941-895, Brazil; Universidade Federal do Rio de Janeiro, Instituto de Química, LADETEC, Avenida Horacio Macedo, 1281, Rio de Janeiro, RJ 21941-598, Brazil.
| | - Ivaldo Itabaiana Junior
- Universidade Federal do Rio de Janeiro, Escola de Química, Departamento de Engenharia Bioquímica, Avenida Athos da Silveira Ramos, Bloco E, Sala E203, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Felipe Korbus Sutili
- Universidade Estadual Paulista - Campus Botucatu, Departamento de Engenharia de Bioprocessos e Biotecnologia, Rua José Barbosa de Barros, 1780, Lageado, SP 18610 307, Brazil.
| | - Philip John Marriott
- Australian Centre for Research on Separation Science, School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia.
| | - Humberto Ribeiro Bizzo
- Embrapa Agroindústria de Alimentos, Avenida das Américas, 29501, Rio de Janeiro, RJ 23020-470, Brazil.
| | - Francisco Radler de Aquino Neto
- Universidade Federal do Rio de Janeiro, Instituto de Química, LADETEC, Avenida Horacio Macedo, 1281, Rio de Janeiro, RJ 21941-598, Brazil.
| | - Rodrigo Octávio Mendonça Alves de Souza
- Universidade Federal do Rio de Janeiro, Instituto de Química, Laboratório de Biocatálise e Síntese Orgânica, Avenida Athos da Silveira Ramos, 149, Rio de Janeiro, RJ 21941-895, Brazil.
| | - Claudia Moraes Rezende
- Universidade Federal do Rio de Janeiro, Instituto de Química, Laboratório de Análise de Aromas, Avenida Athos da Silveira Ramos, 149, Bloco A, Sala 626, Rio de Janeiro, RJ 21941-895, Brazil.
| |
Collapse
|
15
|
Xu C, Zhang H, Shi J, Zheng M, Xiang X, Huang F, Xiao J. Ultrasound irradiation promoted enzymatic alcoholysis for synthesis of monoglyceryl phenolic acids in a solvent-free system. ULTRASONICS SONOCHEMISTRY 2018; 41:120-126. [PMID: 29137734 DOI: 10.1016/j.ultsonch.2017.09.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/06/2017] [Accepted: 09/07/2017] [Indexed: 06/07/2023]
Abstract
Monoglyceryl phenolic acids (MPAs) were known as the natural hydrophilic antioxidants which could be used in different fields such as food, pharmaceutical, cosmetic etc. A novel enzymatic route of MPAs synthesis by the alcoholysis of phenolic acid ethyl esters with glycerol under ultrasound irradiation in solvent free system was developed. Optimization of reaction parameters shows that a high conversion of above 97.4% can be obtained under the following conditions: phenolic acid ethyl esters to glycerol molar ratio of 1:10, with 6% catalyst (Novozym 435), at 60°C and 200rpm, with ultrasound input of 250W, at 20kHz frequency. Compared to the conventional stirring method, the activation energy for phenolic acid ethyl esters conversion was decreased from 65.0kJ/mol to 32.1kJ/mol under ultrasound promotion; the apparent kinetic constant (Vm/Km) increased above 1.2-folds; the lipase amount decreased to 50%; the time required for the maximum conversion reduced up to 3-folds without damaging the lipase activity, which is the fastest report for enzymatic synthesis of MPAs.
Collapse
Affiliation(s)
- Chunfang Xu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan 430062, China
| | - Haiping Zhang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan 430062, China
| | - Jie Shi
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan 430062, China
| | - Mingming Zheng
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan 430062, China; Functional Oil Laboratory Associated By Oil Crops Research Institute, Chinese Academy of Agricultural Sciences and Infinite (China) Co. LTD, Guangzhou 51000, China.
| | - Xia Xiang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan 430062, China; Functional Oil Laboratory Associated By Oil Crops Research Institute, Chinese Academy of Agricultural Sciences and Infinite (China) Co. LTD, Guangzhou 51000, China
| | - Fenghong Huang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan 430062, China
| | - Junyong Xiao
- Functional Oil Laboratory Associated By Oil Crops Research Institute, Chinese Academy of Agricultural Sciences and Infinite (China) Co. LTD, Guangzhou 51000, China
| |
Collapse
|
16
|
Magadum DB, Yadav GD. Design of tandem catalyst by co-immobilization of metal and enzyme on mesoporous foam for cascaded synthesis of (R)-phenyl ethyl acetate. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2017.10.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
17
|
Boudechiche N, Yazid H, Trari M, Sadaoui Z. Valorization of Crataegus azarolus stones for the removal of textile anionic dye by central composite rotatable design using cubic model: optimization, isotherm, and kinetic studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:19609-19623. [PMID: 28681299 DOI: 10.1007/s11356-017-9606-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/21/2017] [Indexed: 06/07/2023]
Abstract
In this study, the central composite rotatable design (CCRD) was used in the optimization of the operating parameters for the removal of the direct blue 86 (DB86), an anionic dye, because of its hazardous impact on human health and aquatic environment. In addition, DB86 is a recalcitrant and non-biodegradable dye whose presence considerably inhibits photosynthesis. Its removal in aqueous medium was achieved by biosorption onto the novel biosorbent Crataegus azarolus stones (CAS). The parameters like the solution pH, biosorbent dose, initial DB86 concentration, and temperature were studied in the ranges 2-6, 0.8-4 g L-1, 20-100 mg L-1, and 10-50 °C, respectively. The significance of the experimental parameters and their interactions was investigated by the Student's t test and p values with 5% error limits using JMP 11.0.0 software. The regression analysis of the experimental data obtained from 31 batch runs provides a cubic model. The optimum conditions obtained for the maximum DB86 elimination from the synthetic solution were found to be pH 2, biosorbent dose of 4 g L-1, initial DB86 concentration of 20 mg L-1, and temperature of 10 °C, leading to a theoretical maximum removal of 123%. The experimental data were analyzed by the Langmuir, Freundlich, and Temkin equilibrium models. The Langmuir isotherm gave the best fit with a maximum biosorption capacity of 24.02 mg g-1. The results of the kinetic study revealed that the biosorption kinetic of DB86 follows a pseudo-second-order model. All results confirmed that CAS are an efficient, economic, and ecological alternative for the treatment of industrial wastewaters loaded with anionic dyes.
Collapse
Affiliation(s)
- Noreddine Boudechiche
- Laboratory of Engineering Reaction, Faculty of Mechanical and Processes Engineering, USTHB, BP 32, Algiers, Algeria.
| | - Hynda Yazid
- Laboratory of Engineering Reaction, Faculty of Mechanical and Processes Engineering, USTHB, BP 32, Algiers, Algeria
| | - Mohamed Trari
- Laboratory of Storage and Valorization of Renewable Energies, Faculty of Chemistry, USTHB, BP 32, Algiers, Algeria
| | - Zahra Sadaoui
- Laboratory of Engineering Reaction, Faculty of Mechanical and Processes Engineering, USTHB, BP 32, Algiers, Algeria
| |
Collapse
|
18
|
Lipase-catalyzed esterification of ferulic acid with lauryl alcohol in ionic liquids and antibacterial properties in vitro against three food-related bacteria. Food Chem 2017; 220:249-256. [DOI: 10.1016/j.foodchem.2016.09.187] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/26/2016] [Accepted: 09/28/2016] [Indexed: 11/22/2022]
|
19
|
Reimer A, Wedde S, Staudt S, Schmidt S, Höffer D, Hummel W, Kragl U, Bornscheuer UT, Gröger H. Process Development through Solvent Engineering in the Biocatalytic Synthesis of the Heterocyclic Bulk Chemical ε-Caprolactone. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2595] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Anna Reimer
- Faculty of Chemistry; Bielefeld University; Universitätsstr. 25 33615 Bielefeld Germany
| | - Severin Wedde
- Faculty of Chemistry; Bielefeld University; Universitätsstr. 25 33615 Bielefeld Germany
| | - Svenja Staudt
- Department of Chemistry and Pharmacy; University of Erlangen-Nürnberg; Henkestr. 42 91054 Erlangen Germany
| | - Sandy Schmidt
- Institute of Biochemistry, Department of Biotechnology & Enzyme Catalysis; Greifswald University; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Diana Höffer
- Institute of Chemistry; University of Rostock; Albert-Einstein-Str. 3A 18059 Rostock Germany
| | - Werner Hummel
- Faculty of Chemistry; Bielefeld University; Universitätsstr. 25 33615 Bielefeld Germany
- Institute of Molecular Enzyme Technology; Research Centre Jülich; Wilhelm-Johnen-Straße 52426 Jülich Germany
| | - Udo Kragl
- Institute of Chemistry; University of Rostock; Albert-Einstein-Str. 3A 18059 Rostock Germany
| | - Uwe T. Bornscheuer
- Institute of Biochemistry, Department of Biotechnology & Enzyme Catalysis; Greifswald University; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
| | - Harald Gröger
- Faculty of Chemistry; Bielefeld University; Universitätsstr. 25 33615 Bielefeld Germany
- Department of Chemistry and Pharmacy; University of Erlangen-Nürnberg; Henkestr. 42 91054 Erlangen Germany
| |
Collapse
|
20
|
Vadgama RN, Odaneth AA, Lali AM. Green synthesis of isopropyl myristate in novel single phase medium Part I: Batch optimization studies. ACTA ACUST UNITED AC 2015; 8:133-137. [PMID: 28352582 PMCID: PMC4980752 DOI: 10.1016/j.btre.2015.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/16/2015] [Accepted: 10/16/2015] [Indexed: 12/01/2022]
Abstract
Green synthesis of isopropyl ester in homogenous phase reaction system. Candida antarctica Lipase B (CAL-B) enzyme has efficiently catalyzed the esterification of myristic acid and isopropyl alcohol. CAL-B activity depends on the polarity of an organic solvent. Good operation stability of the enzyme was found in the single phase reaction system. High purity of isopropyl myristate was obtained by the cold centrifugation technique.
Isopropyl myristate finds many applications in food, cosmetic and pharmaceutical industries as an emollient, thickening agent, or lubricant. Using a homogeneous reaction phase, non-specific lipase derived from Candida antartica, marketed as Novozym 435, was determined to be most suitable for the enzymatic synthesis of isopropyl myristate. The high molar ratio of alcohol to acid creates novel single phase medium which overcomes mass transfer effects and facilitates downstream processing. The effect of various reaction parameters was optimized to obtain a high yield of isopropyl myristate. Effect of temperature, agitation speed, organic solvent, biocatalyst loading and batch operational stability of the enzyme was systematically studied. The conversion of 87.65% was obtained when the molar ratio of isopropyl alcohol to myristic acid (15:1) was used with 4% (w/w) catalyst loading and agitation speed of 150 rpm at 60 °C. The enzyme has also shown good batch operational stability under optimized conditions.
Collapse
|
21
|
Optimization of catalytic activity of sulfated titania for efficient synthesis of isoamyl acetate by response surface methodology. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1533-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
22
|
Ren H, Shi C, Song S, Zeng Q, Zhang Y. Synthesis of diacyl amino acid surfactant and evaluation of its potential for surfactant–polymer flooding. APPLIED PETROCHEMICAL RESEARCH 2015. [DOI: 10.1007/s13203-014-0094-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
23
|
Kinetics of enzymatic synthesis of monoferuloyl glycerol and diferuloyl glycerol by transesterification in [BMIM]PF6. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.02.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
24
|
Basri M, Alrub MA, Malek EA, Ainliah S, Salleh AB, Abdul Rahman MB. OPTIMIZATION OF LIPASE-CATALYZED SYNTHESIS OFN-trans-FERULOYLTYRAMINE USING RESPONSE SURFACE METHODOLOGY (RSM). CHEM ENG COMMUN 2014. [DOI: 10.1080/00986445.2013.821060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
25
|
Ghaffari-Moghaddam M, Yekke-Ghasemi Z, Khajeh M, Rakhshanipour M, Yasin Y. Application of response surface methodology in enzymatic synthesis: A review. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2014. [DOI: 10.1134/s1068162014030054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
26
|
Ferrari F, Paris C, Maigret B, Bidouil C, Delaunay S, Humeau C, Chevalot I. Molecular rules for chemo- and regio-selectivity of Candida antarctica lipase B in peptide acylation reactions. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.12.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
27
|
Yildirim D, Tükel SS. Immobilized Pseudomonas sp. lipase: A powerful biocatalyst for asymmetric acylation of (±)-2-amino-1-phenylethanols with vinyl acetate. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.04.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
28
|
Fatiha B, Sameh B, Youcef S, Zeineddine D, Nacer R. COMPARISON OF ARTIFICIAL NEURAL NETWORK (ANN) AND RESPONSE SURFACE METHODOLOGY (RSM) IN OPTIMIZATION OF THE IMMOBILIZATION CONDITIONS FOR LIPASE FROMCandida rugosaON AMBERJET® 4200-Cl. Prep Biochem Biotechnol 2013; 43:33-47. [DOI: 10.1080/10826068.2012.693899] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
29
|
|
30
|
Optimization of enzymatic synthesis of eugenol ester using statistical approaches. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2012. [DOI: 10.1016/j.bcab.2012.03.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
31
|
Chaibakhsh N, Basri M, Rahman MBA, Adnani A, Salleh AB. Lipase-catalyzed synthesis of ergosterol ester. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2012. [DOI: 10.1016/j.bcab.2011.08.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
32
|
Abdul Rahman MB, Chaibakhsh N, Basri M. Effect of alcohol structure on the optimum condition for novozym 435-catalyzed synthesis of adipate esters. BIOTECHNOLOGY RESEARCH INTERNATIONAL 2011; 2011:162987. [PMID: 22389769 PMCID: PMC3282151 DOI: 10.4061/2011/162987] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 09/20/2011] [Indexed: 12/25/2022]
Abstract
Immobilized Candida antarctica lipase B, Novozym 435, was used as the biocatalyst in the esterification of adipic acid with four different isomers of butanol (n-butanol, sec-butanol, iso-butanol, and tert-butanol). Optimum conditions for the synthesis of adipate esters were obtained using response surface methodology approach with a four-factor-five-level central composite design concerning important reaction parameters which include time, temperature, substrate molar ratio, and amount of enzyme. Reactions under optimized conditions has yielded a high percentage of esterification (>96%) for n-butanol, iso-butanol, and sec-butanol, indicating that extent of esterification is independent of the alcohol structure for primary and secondary alcohols at the optimum conditions. Minimum reaction time (135 min) for achieving maximum ester yield was obtained for iso-butanol. The required time for attaining maximum yield and also the initial rates in the synthesis of di-n-butyl and di-sec-butyl adipate were nearly the same. Immobilized Candida antarctica lipase B was also capable of esterifying tert-butanol with a maximum yield of 39.1%. The enzyme is highly efficient biocatalyst for the synthesis of adipate esters by offering a simple production process and a high esterification yield.
Collapse
|
33
|
Goyal RK, Jayakumar NS, Hashim MA. A comparative study of experimental optimization and response surface optimization of Cr removal by emulsion ionic liquid membrane. JOURNAL OF HAZARDOUS MATERIALS 2011; 195:383-390. [PMID: 21920664 DOI: 10.1016/j.jhazmat.2011.08.056] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 07/21/2011] [Accepted: 08/19/2011] [Indexed: 05/31/2023]
Abstract
A comparative study on the optimization of process parameters of an emulsion ionic liquid membrane (EILM) by experimental work and response surface methodology (RSM) has been carried out. EILM was prepared by using kerosene as solvent, Span 80 as surfactant, NaOH as internal reagent, a hydrophobic ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM](+)[NTf(2)](-)) as a stabilizer and a second ionic liquid tri-n-octylmethylammonium chloride (TOMAC) as a carrier. The prepared EILM was used to separate and concentrate Cr from wastewaters. The comparison between the experimentally optimized and the RSM optimized values was accomplished by optimizing the following parameters: homogenization speed, carrier concentration, internal phase concentration, agitation speed, treat ratio, internal to membrane phase ratio, surfactant concentration and pH of the feed phase. The comparison showed that all the values were in good agreement except for the internal phase concentration and the treat ratio. It was observed that the stability provided by [BMIM](+)[NTf(2)](-) decreased as the extraction progressed due to its high density. Nevertheless, a good stability could be obtained by the combination of [BMIM](+)[NTf(2)](-) and Span 80 during extraction process.
Collapse
|
34
|
Ahmad A, Oh P, Abd Shukor S. Synthesis of 2-oxo-4-phenylbutanoic acid: Parameter optimization using response surface methodology. CHEMICAL ENGINEERING JOURNAL 2011; 171:640-645. [DOI: 10.1016/j.cej.2011.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
35
|
Moore KW, Pechen A, Feng XJ, Dominy J, Beltrani VJ, Rabitz H. Why is chemical synthesis and property optimization easier than expected? Phys Chem Chem Phys 2011; 13:10048-70. [PMID: 21483988 DOI: 10.1039/c1cp20353c] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Identifying optimal conditions for chemical and material synthesis as well as optimizing the properties of the products is often much easier than simple reasoning would predict. The potential search space is infinite in principle and enormous in practice, yet optimal molecules, materials, and synthesis conditions for many objectives can often be found by performing a reasonable number of distinct experiments. Considering the goal of chemical synthesis or property identification as optimal control problems provides insight into this good fortune. Both of these goals may be described by a fitness function J that depends on a suitable set of variables (e.g., reactant concentrations, components of a material, processing conditions, etc.). The relationship between J and the variables specifies the fitness landscape for the target objective. Upon making simple physical assumptions, this work demonstrates that the fitness landscape for chemical optimization contains no local sub-optimal maxima that may hinder attainment of the absolute best value of J. This feature provides a basis to explain the many reported efficient optimizations of synthesis conditions and molecular or material properties. We refer to this development as OptiChem theory. The predicted characteristics of chemical fitness landscapes are assessed through a broad examination of the recent literature, which shows ample evidence of trap-free landscapes for many objectives. The fundamental and practical implications of OptiChem theory for chemistry are discussed.
Collapse
Affiliation(s)
- Katharine W Moore
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
| | | | | | | | | | | |
Collapse
|
36
|
Husson E, Humeau C, Harscoat C, Framboisier X, Paris C, Dubreucq E, Marc I, Chevalot I. Enzymatic acylation of the polar dipeptide, carnosine: Reaction performances in organic and aqueous media. Process Biochem 2011. [DOI: 10.1016/j.procbio.2011.01.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
37
|
Li L, Zhao X, Yang C, Hu H, Qiao M, Chen D. Preparation and optimization of doxorubicin-loaded albumin nanoparticles using response surface methodology. Drug Dev Ind Pharm 2011; 37:1170-80. [PMID: 21449822 DOI: 10.3109/03639045.2011.563781] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The objective of this work was to optimize the preparation of doxorubicin-loaded albumin nanoparticles (Dox-A-Nps) through desolvation procedures using response surface methodology (RSM). A central composite design (CCD) for four factors at five levels was used in this study. METHOD Albumin nanoparticles were prepared through a desolvation method and were optimized in the aid of CCD. Albumin concentration, amount of doxorubicin, pH values, and percentage of glutaraldehyde were selected as independent variables, particle size, zeta potential, drug loading, encapsulation efficiency, and nanoparticles yield were chosen as response variables. RSM and multiple response optimizations utilizing a quadratic polynomial equation were used to obtain an optimal formulation. RESULTS The optimal formulation for Dox-A-Nps was composed of albumin concentration of 17 mg/ml, amount of doxorubicin of 2 mg/ml, pH value is 9 and percentage of glutaraldehyde of 125% of the theoretic amount, under which the optimized conditions gave rise to the actual average value of mean particle size (151 ± 0.43 nm), zeta potential (-18.8 ± 0.21 mV), drug loading efficiency (21.4 ± 0.70%), drug entrapment efficiency (76.9 ± 0.21%) and nanoparticles yield (82.0 ± 0.34%). The storage stability experiments proved that Dox-A-Nps stable in 4°C over the period of 4 months. The in vitro experiments showed a burst release at the initial stage and followed by a prolonged release of Dox from albumin nanoparticles up to 60 h. CONCLUSIONS This study showed that the RSM-CCD method could efficiently be applied for the modeling of nanoparticles, which laid the foundation of the further research of immuno nanoparticles.
Collapse
Affiliation(s)
- Lei Li
- School of Pharmacy, Shenyang Pharmaceutical University, PR China
| | | | | | | | | | | |
Collapse
|
38
|
Chen B, Liu H, Guo Z, Huang J, Wang M, Xu X, Zheng L. Lipase-catalyzed esterification of ferulic Acid with oleyl alcohol in ionic liquid/isooctane binary systems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:1256-1263. [PMID: 21250692 DOI: 10.1021/jf104101z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Lipase-catalyzed synthesis of ferulic acid oleyl alcohol ester in an ionic liquid (IL)/isooctane system was investigated. Considerable bioconversion and volumetric productivity were achieved in inexpensive 1-hexyl-3-methylimidazolium hexafluorophosphate ([Hmim][PF(6)]) and 1-methyl-3-octylimidazolium hexafluorophosphate ([Omim][PF(6)]) mediated systems, and thus, the two types of ILs were selected for further optimization of variables. The results showed that, before reaching a maximum, the increase of ferulic acid concentration, temperature, or enzyme dosage led to an increase in volumetric productivity. Variations of the ratios of IL/isooctane and concentrations of oleyl alcohol also profoundly affected the volumetric productivity. To a higher extent, [Hmim][PF(6)]/isooctane and [Omim][PF(6)]/isooctane show similar reaction behaviors. Under the optimized reaction conditions (60 °C, 150 mg of Novozym 435 and 100 mg of molecular sieves), up to 48.50 mg/mL productivity of oleyl feruleate could be achieved for the [Hmim][PF(6)]/isooctane (0.5 mL/1.5 mL) system with a substrate concentration of ferulic acid of 0.08 mmol/mL and oleyl alcohol of 0.32 mmol; while an optimum volumetric productivity of 26.92 mg/mL was obtained for the [Omim][PF(6)]/ isooctane (0.5 mL/1.5 mL) system under a similar reaction condition other than the substrate concentrations of ferulic acid at 0.05 mmol/mL and oleyl alcohol at 0.20 mmol.
Collapse
Affiliation(s)
- Bilian Chen
- Department of Biotechnology, College of Life Sciences, Fujian Normal University , Fuzhou 350108, China.
| | | | | | | | | | | | | |
Collapse
|
39
|
Abd Rahman NF, Basri M, Rahman MBA, Rahman RNZRA, Salleh AB. High yield lipase-catalyzed synthesis of Engkabang fat esters for the cosmetic industry. BIORESOURCE TECHNOLOGY 2011; 102:2168-2176. [PMID: 21050749 DOI: 10.1016/j.biortech.2010.10.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2010] [Revised: 10/07/2010] [Accepted: 10/09/2010] [Indexed: 05/30/2023]
Abstract
Engkabang fat esters were produced via alcoholysis reaction between Engkabang fat and oleyl alcohol, catalyzed by Lipozyme RM IM. The reaction was carried out in a 500 ml Stirred tank reactor using heptane and hexane as solvents. Response surface methodology (RSM) based on a four-factor-five-level Central composite design (CCD) was applied to evaluate the effects of synthesis parameters, namely temperature, substrate molar ratio (oleyl alcohol: Engkabang fat), enzyme amount and impeller speed. The optimum yields of 96.2% and 91.4% were obtained for heptane and hexane at the optimum temperature of 53.9°C, impeller speeds of 309.5 and 309.0 rpm, enzyme amounts of 4.82 and 5.65 g and substrate molar ratios of 2.94 and 3.39:1, respectively. The actual yields obtained compared well with the predicted values of 100.0% and 91.5%, respectively. Meanwhile, the properties of the esters show that they are suitable to be used as ingredient for cosmetic applications.
Collapse
Affiliation(s)
- Nur Fariza Abd Rahman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | | | | | | | | |
Collapse
|
40
|
Moore KW, Pechen A, Feng XJ, Dominy J, Beltrani V, Rabitz H. Universal characteristics of chemical synthesis and property optimization. Chem Sci 2011. [DOI: 10.1039/c0sc00425a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
41
|
Chaibakhsh N, Rahman MBA, Basri M, Salleh AB, Abd-Aziz S. Lipase-catalyzed dimethyl adipate synthesis: Response surface modeling and kinetics. Biotechnol J 2010; 5:848-55. [DOI: 10.1002/biot.201000063] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
42
|
Rodrigues RC, Fernandez-Lafuente R. Lipase from Rhizomucor miehei as an industrial biocatalyst in chemical process. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2010.02.003] [Citation(s) in RCA: 171] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
43
|
Rajasimman M, Karthic P. Application of response surface methodology for the extraction of chromium (VI) by emulsion liquid membrane. J Taiwan Inst Chem Eng 2010. [DOI: 10.1016/j.jtice.2009.04.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
44
|
MANIVANNAN P, RAJASIMMAN M. OPTIMIZATION OF PROCESS PARAMETERS FOR THE OSMOTIC DEHYDRATION OF BEETROOT IN SUGAR SOLUTION. J FOOD PROCESS ENG 2009. [DOI: 10.1111/j.1745-4530.2009.00436.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
45
|
Enzymatic acylation of polar dipeptides: Influence of reaction media and molecular environment of functional groups. Process Biochem 2009. [DOI: 10.1016/j.procbio.2008.12.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
46
|
Jurado Alameda E, Bravo Rodríguez V, Núñez Olea J, Bailón Moreno R, Gálvez Borrego A, Altmajer Vaz D. Design of Experiments to Evaluate the Detergency of Surfactants on Fatty Soils in a Continuous-Flow Device. J SURFACTANTS DETERG 2009. [DOI: 10.1007/s11743-009-1110-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
47
|
Abdul Rahman MB, Chaibakhsh N, Basri M, Salleh AB, Abdul Rahman RNZR. Application of artificial neural network for yield prediction of lipase-catalyzed synthesis of dioctyl adipate. Appl Biochem Biotechnol 2009; 158:722-35. [PMID: 19132557 DOI: 10.1007/s12010-008-8465-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2008] [Accepted: 12/02/2008] [Indexed: 11/30/2022]
Abstract
In this study, an artificial neural network (ANN) trained by backpropagation algorithm, Levenberg-Marquadart, was applied to predict the yield of enzymatic synthesis of dioctyl adipate. Immobilized Candida antarctica lipase B was used as a biocatalyst for the reaction. Temperature, time, amount of enzyme, and substrate molar ratio were the four input variables. After evaluating various ANN configurations, the best network was composed of seven hidden nodes using a hyperbolic tangent sigmoid transfer function. The correlation coefficient (R2) and mean absolute error (MAE) values between the actual and predicted responses were determined as 0.9998 and 0.0966 for training set and 0.9241 and 1.9439 for validating dataset. A simulation test with a testing dataset showed that the MAE was low and R2 was close to 1. These results imply the good generalization of the developed model and its capability to predict the reaction yield. Comparison of the performance of radial basis network with the developed models showed that radial basis function was more accurate but its performance was poor when tested with unseen data. In further part of the study, the feedforward backpropagation model was used for prediction of the ester yield within the given range of the main parameters.
Collapse
Affiliation(s)
- Mohd Basyaruddin Abdul Rahman
- Department of Chemistry, Faculty of Science, 43400 UPM, Serdang, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia.
| | | | | | | | | |
Collapse
|
48
|
Ebrahimpour A, Rahman RNZRA, Ean Ch'ng DH, Basri M, Salleh AB. A modeling study by response surface methodology and artificial neural network on culture parameters optimization for thermostable lipase production from a newly isolated thermophilic Geobacillus sp. strain ARM. BMC Biotechnol 2008; 8:96. [PMID: 19105837 PMCID: PMC2637859 DOI: 10.1186/1472-6750-8-96] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Accepted: 12/23/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Thermostable bacterial lipases occupy a place of prominence among biocatalysts owing to their novel, multifold applications and resistance to high temperature and other operational conditions. The capability of lipases to catalyze a variety of novel reactions in both aqueous and nonaqueous media presents a fascinating field for research, creating interest to isolate novel lipase producers and optimize lipase production. The most important stages in a biological process are modeling and optimization to improve a system and increase the efficiency of the process without increasing the cost. RESULTS Different production media were tested for lipase production by a newly isolated thermophilic Geobacillus sp. strain ARM (DSM 21496 = NCIMB 41583). The maximum production was obtained in the presence of peptone and yeast extract as organic nitrogen sources, olive oil as carbon source and lipase production inducer, sodium and calcium as metal ions, and gum arabic as emulsifier and lipase production inducer. The best models for optimization of culture parameters were achieved by multilayer full feedforward incremental back propagation network and modified response surface model using backward elimination, where the optimum condition was: growth temperature (52.3 degrees C), medium volume (50 ml), inoculum size (1%), agitation rate (static condition), incubation period (24 h) and initial pH (5.8). The experimental lipase activity was 0.47 Uml(-1) at optimum condition (4.7-fold increase), which compared well to the maximum predicted values by ANN (0.47 Uml(-1)) and RSM (0.476 Uml(-1)), whereas R2 and AAD were determined as 0.989 and 0.059% for ANN, and 0.95 and 0.078% for RSM respectively. CONCLUSION Lipase production is the result of a synergistic combination of effective parameters interactions. These parameters are in equilibrium and the change of one parameter can be compensated by changes of other parameters to give the same results. Though both RSM and ANN models provided good quality predictions in this study, yet the ANN showed a clear superiority over RSM for both data fitting and estimation capabilities. On the other hand, ANN has the disadvantage of requiring large amounts of training data in comparison with RSM. This problem was solved by using statistical experimental design, to reduce the number of experiments.
Collapse
Affiliation(s)
- Afshin Ebrahimpour
- Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | | | - Diana Hooi Ean Ch'ng
- Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Mahiran Basri
- Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Abu Bakar Salleh
- Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| |
Collapse
|
49
|
Gouveia IC, Fiadeiro JM, Queiroz JA. Enzymatic removal of plant residues from wool: Application of experimental design techniques for optimization parameters. Biochem Eng J 2008. [DOI: 10.1016/j.bej.2008.04.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
50
|
Frański R, Schroeder G, Kamysz W, Niedzialkowski P, Ossowski T. Complexes between some lysine-containing peptides and crown ethers--electrospray ionization mass spectrometric study. JOURNAL OF MASS SPECTROMETRY : JMS 2007; 42:459-66. [PMID: 17295414 DOI: 10.1002/jms.1178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The complexes between lysine-containing peptides (M) and crown ethers (CEs, 18C6, 15C5, 12C4) have been studied by the electrospray ionization (ESI) mass spectrometry. The maximum number of CEs attached has been found to be the same as that of the alkyl-amino side chains of lysine and as that of the protons attached. Examination of the breakdown plots of the abundances of the ions observed against the cone voltage (CV) has shown that mass spectrometric fragmentation pathways of [M + nH + (CE)n]+n may involve a loss of a neutral CE molecule as well as protonated one. The decrease in the CE cavity (the use of 12C4 or 15C5 instead of 18C6) leads to a dramatic lowering in the stability of the complexes in the gas phase but not in solution. Attachment of a CE to peptides increases their hydrophobicity, and therefore proceeds with lower efficiency in water than in methanol.
Collapse
Affiliation(s)
- Rafał Frański
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland.
| | | | | | | | | |
Collapse
|