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Akceylan E, Erdemir S, Tabakci M, Sivrikaya A, Tabakci B. Fluorescence switchable sensor enabled by a calix[4]arene-Cu(II) complex system for selective determination of itraconazole in human serum and aqueous solution. Talanta 2022; 250:123742. [PMID: 35858530 DOI: 10.1016/j.talanta.2022.123742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 11/18/2022]
Abstract
A switchable fluorescence sensor based on a calix (Monapathi et al., 2021) [4]arene:Cu2+ complex (FLCX/Cu) has been developed for the detection of itraconazole (ITZ) with high sensitivity and specificity. For the development of the sensor, the selective complexation of a fluorescent calix (Monapathi et al., 2021) [4]arene derivative (FL-CX) with the Cu2+ ion causing fluorescence quenching was utilized. In addition, the sensor properties of the FLCX/Cu prepared were investigated. For this purpose, various substances (selected anions, cations, and drugs) with which ITZ can be found together were studied in an aqueous solution. Limit of detection (LOD) and limit of quantification (LOQ) values were determined in the range of 1.00-60.0 μg/L as 3.34 μg/L and 11.1 μg/L for ITZ, respectively. Moreover, the real sample analyses were performed in human serum and tablet form. Furthermore, the effect of some possible serum contents on sensor performance was also studied. All these studies confirmed the development of a simple, precise, accurate, reproducible, highly sensitive, and very stable fluorescence sensor.
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Affiliation(s)
- Ezgi Akceylan
- Department of Chemistry, Faculty of Science, Selçuk University, Konya, 42130, Turkey
| | - Serkan Erdemir
- Department of Chemistry, Faculty of Science, Selçuk University, Konya, 42130, Turkey
| | - Mustafa Tabakci
- Department of Chemical Engineering, Faculty of Engineering and Natural Sciences, Konya Technical University, Konya, 42250, Turkey
| | - Abdullah Sivrikaya
- Department of Medical Biochemistry, Faculty of Medicine, Selçuk University, Konya, 42131, Turkey
| | - Begum Tabakci
- Department of Chemistry, Faculty of Science, Selçuk University, Konya, 42130, Turkey.
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2
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Mathematically assisted UV-spectrophotometry as a greener alternative to HPLC-UV for quality control analysis of free-drug combinations. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Roshdy A, Elmansi H, Shalan S, El-Brashy A. Factorial design-assisted reversed phase-high performance liquid chromatography method for simultaneous determination of fluconazole, itraconazole and terbinafine. ROYAL SOCIETY OPEN SCIENCE 2021; 8:202130. [PMID: 33972882 PMCID: PMC8103232 DOI: 10.1098/rsos.202130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/20/2021] [Indexed: 06/12/2023]
Abstract
A 23 full factorial design model was used for the development of a new high performance liquid chromatography method with UV detection to estimate three antifungal drugs simultaneously. Fluconazole (FLU), itraconazole (ITR) and terbinafine (TRH) are co-administered for severe fungal infections. They have been determined using MOS-1 Hypersil C18 column and an isocratic eluent; methanol 95% and phosphate buffer 5% with 0.001% triethylamine. The pH was adjusted to 7, and the flow rate was 0.7 ml min-1. The three drugs were separated within less than 7 min at 210 nm. The developed method gave a linear response over 5-80 µg ml-1, 5-50 µg ml-1 and 1-50 µg ml-1 for FLU, ITR and TRH, respectively. It showed detection limits of 0.88, 0.29 and 0.20 µg ml-1 and quantification limits of 2.66, 0.88 and 0.60 µg ml-1 for the three drugs, respectively. The design of the experiment facilitated the optimization of different variables affecting the separation of the three drugs. The sensitivity of the designed method permitted the simultaneous estimation of ITR and TRH in spiked human plasma successfully.
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Affiliation(s)
- Aya Roshdy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University-Egypt, New Damietta, Egypt
| | - Heba Elmansi
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Shereen Shalan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Amina El-Brashy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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Cunha-Filho M, Rocha JL, Duarte NCB, Sa-Barreto LL. Development of a reversed-phase high-performance liquid chromatographic method for the determination of propranolol in different skin layers. Biomed Chromatogr 2020; 35:e4987. [PMID: 32931605 DOI: 10.1002/bmc.4987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/13/2020] [Accepted: 09/03/2020] [Indexed: 12/16/2022]
Abstract
The aim of this work was to develop and validate an analytical method using HPLC for the determination of propranolol in the different layers of the skin to be used in kinetic studies of skin permeation. The development of the method was based on the suitability of the chromatogram, and the validation followed the international health regulation for bioanalytical methods. In addition, the method was tested in an in vitro permeation assay using porcine skin. The drug was determined using an RP-C18 column at 30°C, a mobile phase comprising acidic aqueous phase:acetonitrile (75:25 v/v), at a flow rate of 1.0 mL min-1 , and UV detection at 290 nm. The method was demonstrated to be selective against skin contaminants, linear in a wide range of concentrations (3-20 μg mL-1 ), sensitive enough to quantify less than 0.1% of the drug dosage in skin matrices, and precise regardless of analysis variations such as day of analysis, analyst, or equipment. In addition, the method presented a high drug extraction capacity greater than 90% for all skin layers (stratum corneum, hair follicle, and remaining skin). Finally, the method was successfully tested in skin permeation assays, proving its value in the development of topical formulations containing propranolol.
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Affiliation(s)
- Marcilio Cunha-Filho
- Laboratory of Food, Drug, and Cosmetics (LTMAC), Faculty of Health Sciences, University of Brasília, Brasília, DF, Brazil
| | | | - Natane C B Duarte
- Laboratory of Food, Drug, and Cosmetics (LTMAC), Faculty of Health Sciences, University of Brasília, Brasília, DF, Brazil
| | - Lívia L Sa-Barreto
- Faculty of Ceilândia, University of Brasília (UnB), Ceilândia, DF, Brazil
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Elmansi H, Roshdy A, Shalan S, El-Brashy A. Combining derivative and synchronous approaches for simultaneous spectrofluorimetric determination of terbinafine and itraconazole. ROYAL SOCIETY OPEN SCIENCE 2020; 7:200571. [PMID: 32968519 PMCID: PMC7481716 DOI: 10.1098/rsos.200571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
In this study, determination of terbinafine and itraconazole down to biological concentration level has been carried out. The determination is based on increasing the selectivity of the spectrofluorimetric technique by combining both derivative and synchronous spectrofluorometric approaches, which permits successful estimation of terbinafine at 257 nm and itraconazole at 319 nm in the presence of each other at Δλ of 60 nm. International Conference on Harmonization validation guidelines were followed to fully validate the method, and linearity was obtained for the two drugs over the range of 0.1-0.7 µg ml-1 for terbinafine and 0.5-4.0 µg ml-1 for itraconazole. Application of the method was successfully carried out in the commercial tablets with good agreement with the comparison spectrofluorometric methods. As the detection limits were down to 0.013 and 0.1 µg ml-1 and quantitation limits were 0.04 and 0.032 µg ml-1 for terbinafine and itraconazole, respectively; the in vitro determination of terbinafine and itraconazole in spiked plasma samples was applicable. The percentage recoveries in biological samples were 97.17 ± 4.54 and 98.75 ± 2.25 for terbinafine and itraconazole, respectively. Water was used as the optimum diluting solvent in the proposed methodology which adds an eco-friendly merit.
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Affiliation(s)
- Heba Elmansi
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt
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Development and Validation of an In-Line API Quantification Method Using AQbD Principles Based on UV-Vis Spectroscopy to Monitor and Optimise Continuous Hot Melt Extrusion Process. Pharmaceutics 2020; 12:pharmaceutics12020150. [PMID: 32059445 PMCID: PMC7076712 DOI: 10.3390/pharmaceutics12020150] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 01/16/2023] Open
Abstract
A key principle of developing a new medicine is that quality should be built in, with a thorough understanding of the product and the manufacturing process supported by appropriate process controls. Quality by design principles that have been established for the development of drug products/substances can equally be applied to the development of analytical procedures. This paper presents the development and validation of a quantitative method to predict the concentration of piroxicam in Kollidon® VA 64 during hot melt extrusion using analytical quality by design principles. An analytical target profile was established for the piroxicam content and a novel in-line analytical procedure was developed using predictive models based on UV-Vis absorbance spectra collected during hot melt extrusion. Risks that impact the ability of the analytical procedure to measure piroxicam consistently were assessed using failure mode and effect analysis. The critical analytical attributes measured were colour (L* lightness, b* yellow to blue colour parameters—in-process critical quality attributes) that are linked to the ability to measure the API content and transmittance. The method validation was based on the accuracy profile strategy and ICH Q2(R1) validation criteria. The accuracy profile obtained with two validation sets showed that the 95% β-expectation tolerance limits for all piroxicam concentration levels analysed were within the combined trueness and precision acceptance limits set at ±5%. The method robustness was tested by evaluating the effects of screw speed (150–250 rpm) and feed rate (5–9 g/min) on piroxicam content around 15% w/w. In-line UV-Vis spectroscopy was shown to be a robust and practical PAT tool for monitoring the piroxicam content, a critical quality attribute in a pharmaceutical HME process.
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Lima SG, Pinho LA, Pereira MN, Gratieri T, Sa-Barreto LL, Gelfuso GM, Cunha-Filho M. Preformulation studies of finasteride to design matrix systems for topical delivery. J Pharm Biomed Anal 2018; 161:273-279. [DOI: 10.1016/j.jpba.2018.08.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/26/2018] [Accepted: 08/27/2018] [Indexed: 01/05/2023]
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Pereira MN, Matos BN, Gratieri T, Cunha-Filho M, Gelfuso GM. Development and validation of a simple chromatographic method for simultaneous determination of clindamycin phosphate and rifampicin in skin permeation studies. J Pharm Biomed Anal 2018; 159:331-340. [PMID: 30025298 DOI: 10.1016/j.jpba.2018.07.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/02/2018] [Accepted: 07/08/2018] [Indexed: 10/28/2022]
Abstract
Rifampicin (RIF) and clindamycin phosphate (CDM) are the main drugs currently used in combination to treat severe infectious diseases in hair follicles. This work describes a simple, rapid and sensitive method for simultaneous analysis of RIF and CDM in the different skin layers using high performance liquid chromatography (HPLC). The efficient chromatographic separation of CDM and RIF was succeeded using a C18 column (150 mm x 4.6 mm, 5 μm) with gradient elution using a mobile phase composed of 0.01 M phosphoric acid and methanol at a flow rate of 1 mL min-1. Determinations were performed using UV-vis detector at 200 nm and 238 nm for CDM and RIF, respectively. The method was precise, accurate and linear (r2 > 0.999) with regression curve in the concentration range from 0.5 to 20.0 μg mL-1 and recovery rates from the skin layers higher than 85%. The retention times for CDM and RIF were approximately 7.4 and 12.2 min, respectively. The presence of skin components did not interfere with the analysis. The validated method was therefore appropriate for quantification of both CDM and RIF and thus may be feasible to be used in skin permeation studies.
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Affiliation(s)
- Maira N Pereira
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70910-900, Brasília, DF, Brazil
| | - Breno N Matos
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70910-900, Brasília, DF, Brazil
| | - Tais Gratieri
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70910-900, Brasília, DF, Brazil
| | - Marcilio Cunha-Filho
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70910-900, Brasília, DF, Brazil
| | - Guilherme M Gelfuso
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70910-900, Brasília, DF, Brazil.
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Reis TA, Jaculi AE, Alves RDC, Gratieri T, Azevedo RB, Joanitti GA, Gelfuso GM, Cunha-Filho M. Simple and Selective HPLC-UV/Vis Bioanalytical Method to Determine Aluminum Phthalocyanine Chloride in Skin Permeation Studies. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2018; 2018:7423764. [PMID: 29484215 PMCID: PMC5816864 DOI: 10.1155/2018/7423764] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/25/2017] [Indexed: 06/08/2023]
Abstract
Considering the feasibility of the aluminum phthalocyanine chloride (AlPcCl) application in the topical photodynamic therapy of cutaneous tumors and the lack of HPLC methods capable of supporting skin permeation experiments using this compound, the aim of this study was to obtain a simple and selective chromatographic method for AlPcCl determination in skin matrices. A HPLC-UV/Vis method was developed using a normal-phase column operating at 30°C, an isocratic mobile phase of methanol : phosphoric acid (0.01 M) at 1.5 mL/min, and detection at 670 nm. The method exhibited (i) selectivity against various contaminants found in the different skin layers, (ii) high drug extraction capacity from the hair follicle (>70%) and remaining skin (>80%), and (iii) low limits of detection and of quantification (0.03 and 0.09 μg/mL, resp.). The method was also linear in the range from 0.1 to 5.0 µg/mL (r = 0.9994) and demonstrated robustness with regard to experimental chromatographic parameters according to a factorial design. Lastly, the developed method was successfully tested in in vitro skin permeation studies of AlPcCl, proving its effectiveness in the development of pharmaceutical delivery systems containing this drug for topical photodynamic therapy of skin cancers.
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Affiliation(s)
- Thaiene Avila Reis
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70.910-900 Brasília, DF, Brazil
| | - Ana Elise Jaculi
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70.910-900 Brasília, DF, Brazil
| | - Rubens da Costa Alves
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70.910-900 Brasília, DF, Brazil
| | - Tais Gratieri
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70.910-900 Brasília, DF, Brazil
| | - Ricardo Bentes Azevedo
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, 70.910-900 Brasília, DF, Brazil
| | | | - Guilherme Martins Gelfuso
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70.910-900 Brasília, DF, Brazil
| | - Marcilio Cunha-Filho
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences, University of Brasília, 70.910-900 Brasília, DF, Brazil
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Ferreira-Nunes R, Angelo T, da Silva SMM, Magalhães PO, Gratieri T, da Cunha-Filho MSS, Gelfuso GM. Versatile chromatographic method for catechin determination in development of topical formulations containing natural extracts. Biomed Chromatogr 2017; 32. [DOI: 10.1002/bmc.4062] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/07/2017] [Accepted: 08/07/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Ricardo Ferreira-Nunes
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences; University of Brasília; 70.910-900 Brasília DF Brazil
| | - Tamara Angelo
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences; University of Brasília; 70.910-900 Brasília DF Brazil
| | | | - Pérola Oliveira Magalhães
- Laboratório de Produtos Naturais, School of Health Sciences; University of Brasília; 70.910-900 Brasília DF Brazil
| | - Tais Gratieri
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences; University of Brasília; 70.910-900 Brasília DF Brazil
| | | | - Guilherme Martins Gelfuso
- Laboratory of Food, Drugs and Cosmetics (LTMAC), School of Health Sciences; University of Brasília; 70.910-900 Brasília DF Brazil
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Ângelo T, Cunha-Filho MSS, Gelfuso GM, Gratieri T. Chromatographic method for clobetasol propionate determination in hair follicles and in different skin layers. Biomed Chromatogr 2016; 31. [DOI: 10.1002/bmc.3804] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 06/20/2016] [Accepted: 08/02/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Tamara Ângelo
- Laboratory of Food, Drug and Cosmetics, School of Health Sciences; University of Brasilia; 70910-900 Brasília DF Brazil
| | - Marcílio S. S. Cunha-Filho
- Laboratory of Food, Drug and Cosmetics, School of Health Sciences; University of Brasilia; 70910-900 Brasília DF Brazil
| | - Guilherme M. Gelfuso
- Laboratory of Food, Drug and Cosmetics, School of Health Sciences; University of Brasilia; 70910-900 Brasília DF Brazil
| | - Tais Gratieri
- Laboratory of Food, Drug and Cosmetics, School of Health Sciences; University of Brasilia; 70910-900 Brasília DF Brazil
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Angelo T, Pires FQ, Gelfuso GM, da Silva JKR, Gratieri T, Cunha-Filho MSS. Development and validation of a selective HPLC-UV method for thymol determination in skin permeation experiments. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1022:81-86. [PMID: 27085016 DOI: 10.1016/j.jchromb.2016.04.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/04/2016] [Accepted: 04/05/2016] [Indexed: 11/29/2022]
Abstract
Thymol is a natural monoterpene, whose antioxidant and antimicrobial properties suggest a potential use in topical formulations. A simple, precise and selective HPLC method for thymol determination in skin penetration studies was developed and validated in this paper. Separation was achieved with a RP-C18 column, mobile phase comprised of acetonitrile:water (35:65v/v), flow rate of 1.5mL/min, oven temperature at 40°C, injection volume of 30μL and UV detection at 278nm. The validation procedure certified the method was selective for thymol determination even when extracted from skin matrix extracts. It was also linear in a range from 0.5 to 15.0μg/mL, robust, precise and accurate, with recovery rates from the skin layers higher than 90%. Limits of detection and quantification were 0.05 and 0.14μg/mL, respectively. The method showed, therefore, to be adequate for use in further skin permeation studies employing thymol topical formulations.
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Affiliation(s)
- Tamara Angelo
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, 70910-900 Brasília, DF, Brazil
| | - Felipe Q Pires
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, 70910-900 Brasília, DF, Brazil
| | - Guilherme M Gelfuso
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, 70910-900 Brasília, DF, Brazil
| | - Joyce K R da Silva
- Programa de Pós-Graduação em Biotecnologia, Federal University of Para, 66075-970 Belém, PA, Brazil
| | - Tais Gratieri
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, 70910-900 Brasília, DF, Brazil
| | - Marcílio S S Cunha-Filho
- Laboratory of Food, Drug and Cosmetics (LTMAC), School of Health Sciences, University of Brasilia, 70910-900 Brasília, DF, Brazil.
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