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Barbălată CI, Porfire AS, Ambrus R, Mukhtar M, Farkas Á, Tomuță I. Process development of inhalation powders containing simvastatin loaded liposomes using spray drying technology. J Liposome Res 2024; 34:421-434. [PMID: 37998080 DOI: 10.1080/08982104.2023.2287588] [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: 05/12/2023] [Accepted: 10/14/2023] [Indexed: 11/25/2023]
Abstract
The development of an inhalation powder (IP) for cancer therapy is desired to improve the therapeutic response and patient compliance. The latest studies highlighted that statins, a class of drugs used in hypercholesterolemia, can have anticancer and antiinflammatory properties. Therefore, the aim of the study was to develop an IP containing liposomes loaded with simvastatin using spray drying technology, as well as to investigate the influence of formulation factors on the quality attributes of the IP by means of experimental design. Results highlighted that the composition of liposomes, namely type of phospholipid and cholesterol concentration, highly influences the quality attributes of IP, and the use of optimal concentrations of excipients, i.e. D-mannitol and L-leucine, is essential to preserve the characteristics of liposomes throughout the spray drying process. The in vitro characterization of the optimal IP formulation revealed that the total percentage of released drug is higher from the IP formulation compared to the powder of active substance (53.38 vs. 42.76%) over a period of six hours, and 39.67% of dry particles have a size less than 5 µm, making them suitable for inhalation. As a conclusion, spray drying technology can be effectively used in the development and preparation of IP containing liposomes.
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Affiliation(s)
- Cristina-Ioana Barbălată
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, 'Iuliu Hatieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alina Silvia Porfire
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, 'Iuliu Hatieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Rita Ambrus
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
| | - Mahwash Mukhtar
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Szeged, Hungary
| | - Árpád Farkas
- Environmental Physiscs Department, Center for Energy Research, Budapest, Hungary
| | - Ioan Tomuță
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, 'Iuliu Hatieganu' University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Umsza-Guez MA, Vázquez-Espinosa M, Chinchilla N, Aliaño-González MJ, Oliveira de Souza C, Ayena K, Fernández Barbero G, Palma M, Carrera C. Enhancing Anthocyanin Extraction from Wine Lees: A Comprehensive Ultrasound-Assisted Optimization Study. Antioxidants (Basel) 2023; 12:2074. [PMID: 38136194 PMCID: PMC10740476 DOI: 10.3390/antiox12122074] [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: 11/15/2023] [Revised: 11/30/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
Wine lees, an important by-product of the wine industry, pose a major environmental problem due to the enormous quantities of solid-liquid waste that are discarded annually without defined applications. In this study, the optimization of a method based on a Box-Behnken design with surface response has been carried out to obtain extracts with high anthocyanin content and potent antioxidant activity. Six variables have been considered: %EtOH, temperature, amplitude, cycle, pH, and ratio. The developed method exhibited important repeatability properties and intermediate precision, with less than 5% CV being achieved. Furthermore, these novel methods were successfully applied to diverse wine lees samples sourced from Cabernet Sauvignon and Syrah varieties (Vitis vinifera), resulting in extracts enriched with significant anthocyanin content and noteworthy antioxidant activity. Additionally, this study evaluated the influence of grape variety, fermentation type (alcoholic or malolactic), and sample treatment on anthocyanin content and antioxidant activity, providing valuable insights for further research and application in various sectors. The potential applications of these high-quality extracts extend beyond the winemaking industry, holding promise for fields like medicine, pharmaceuticals, and nutraceuticals, thus promoting a circular economy and mitigating environmental contamination.
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Affiliation(s)
- Marcelo A. Umsza-Guez
- Food Science Postgraduate Program, Faculty of Pharmacy, Federal University of Bahia, Salvador 40170-100, Bahia, Brazil; (M.A.U.-G.); (C.O.d.S.); (K.A.)
| | - Mercedes Vázquez-Espinosa
- Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), Wine and Agrifood Research Institute (IVAGRO), 11510 Puerto Real, Spain; (M.V.-E.); (G.F.B.); (M.P.); (C.C.)
| | - Nuria Chinchilla
- Department of Organic Chemistry, Faculty of Sciences, University of Cadiz, Institute of Biomolecules (INBIO), 11510 Puerto Real, Spain;
| | - María José Aliaño-González
- Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), Wine and Agrifood Research Institute (IVAGRO), 11510 Puerto Real, Spain; (M.V.-E.); (G.F.B.); (M.P.); (C.C.)
- MED–Mediterranean Institute for Agriculture, Environment and Development, Faculdade de Ciências e Tecnologia, Campus de Gambelas, Ed. 8, Universidade do Algarve, 8005-139 Faro, Portugal
| | - Carolina Oliveira de Souza
- Food Science Postgraduate Program, Faculty of Pharmacy, Federal University of Bahia, Salvador 40170-100, Bahia, Brazil; (M.A.U.-G.); (C.O.d.S.); (K.A.)
| | - Kodjovi Ayena
- Food Science Postgraduate Program, Faculty of Pharmacy, Federal University of Bahia, Salvador 40170-100, Bahia, Brazil; (M.A.U.-G.); (C.O.d.S.); (K.A.)
| | - Gerardo Fernández Barbero
- Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), Wine and Agrifood Research Institute (IVAGRO), 11510 Puerto Real, Spain; (M.V.-E.); (G.F.B.); (M.P.); (C.C.)
| | - Miguel Palma
- Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), Wine and Agrifood Research Institute (IVAGRO), 11510 Puerto Real, Spain; (M.V.-E.); (G.F.B.); (M.P.); (C.C.)
| | - Ceferino Carrera
- Department of Analytical Chemistry, Faculty of Sciences, University of Cadiz, Agrifood Campus of International Excellence (ceiA3), Wine and Agrifood Research Institute (IVAGRO), 11510 Puerto Real, Spain; (M.V.-E.); (G.F.B.); (M.P.); (C.C.)
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3
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Hoseini B, Jaafari MR, Golabpour A, Momtazi-Borojeni AA, Karimi M, Eslami S. Application of ensemble machine learning approach to assess the factors affecting size and polydispersity index of liposomal nanoparticles. Sci Rep 2023; 13:18012. [PMID: 37865639 PMCID: PMC10590434 DOI: 10.1038/s41598-023-43689-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/27/2023] [Indexed: 10/23/2023] Open
Abstract
Liposome nanoparticles have emerged as promising drug delivery systems due to their unique properties. Assessing particle size and polydispersity index (PDI) is critical for evaluating the quality of these liposomal nanoparticles. However, optimizing these parameters in a laboratory setting is both costly and time-consuming. This study aimed to apply a machine learning technique to assess the impact of specific factors, including sonication time, extrusion temperature, and compositions, on the size and PDI of liposomal nanoparticles. Liposomal solutions were prepared and subjected to sonication with varying values for these parameters. Two compositions: (A) HSPC:DPPG:Chol:DSPE-mPEG2000 at 55:5:35:5 molar ratio and (B) HSPC:Chol:DSPE-mPEG2000 at 55:40:5 molar ratio, were made using remote loading method. Ensemble learning (EL), a machine learning technique, was employed using the Least-squares boosting (LSBoost) algorithm to accurately model the data. The dataset was randomly split into training and testing sets, with 70% allocated for training. The LSBoost algorithm achieved mean absolute errors of 1.652 and 0.0105 for modeling the size and PDI, respectively. Under conditions where the temperature was set at approximately 60 °C, our EL model predicted a minimum particle size of 116.53 nm for composition (A) with a sonication time of approximately 30 min. Similarly, for composition (B), the model predicted a minimum particle size of 129.97 nm with sonication times of approximately 30 or 55 min. In most instances, a PDI of less than 0.2 was achieved. These results highlight the significant impact of optimizing independent factors on the characteristics of liposomal nanoparticles and demonstrate the potential of EL as a decision support system for identifying the best liposomal formulation. We recommend further studies to explore the effects of other independent factors, such as lipid composition and surfactants, on liposomal nanoparticle characteristics.
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Affiliation(s)
- Benyamin Hoseini
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amin Golabpour
- Department of Health Information Technology, School of Allied Medical Sciences, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Amir Abbas Momtazi-Borojeni
- Department of Medical Biotechnology, School of Medicine, Neyshabur University of Medical Sciences, Neyshabur, Iran
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Maryam Karimi
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, USA
| | - Saeid Eslami
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Duarte H, Carrera C, Aliaño-González MJ, Gutiérrez-Escobar R, Jiménez-Hierro MJ, Palma M, Galego L, Romano A, Medronho B. On the Valorization of Arbutus unedo L. Pomace: Polyphenol Extraction and Development of Novel Functional Cookies. Foods 2023; 12:3707. [PMID: 37835361 PMCID: PMC10572809 DOI: 10.3390/foods12193707] [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: 09/21/2023] [Revised: 10/02/2023] [Accepted: 10/07/2023] [Indexed: 10/15/2023] Open
Abstract
The fruits of Arbutus unedo L. have a crimson colour and are enriched with remarkable concentrations of bioactive compounds such as anthocyanins and polyphenols. These fruits are commonly used in the production of a Portuguese Protected Geographical Indication distillate called "Aguardente de Medronho". During this process, a solid pomace is generated and presently discarded without valuable applications. In this work, two strategies have been developed for the valorisation of A. unedo pomace. The first approach considers the extraction of polyphenols from this by-product through the optimization of an ultrasound-assisted method using a Box-Behnken design coupled with response surface methodology. The results indicate that the temperature and the percentage of methanol, along with their interaction, significantly influence the total concentration of polyphenols and the antioxidant activity of the extracts obtained. The optimal conditions identified consider the extraction of 0.5 g of sample with 20 mL of a solvent containing 74% MeOH (aq), at a pH of 4.8, maintained at 70 °C for 15 min. On the other hand, the second valorisation strategy considered the use of A. unedo pomace in the development of functional cookies. The incorporation of 15-20% pomace in the cookie formulation was well-received by consumers. This incorporation results in an intake of ca. 6.55 mg of polyphenols per gram of cookie consumed, accompanied by an antioxidant activity of 4.54 mg Trolox equivalents per gram of cookie consumed. Overall, these results encourage the employment of A. unedo pomace either as a reliable source of extracts enriched in polyphenols or as a nutraceutical active ingredient in functional cookies, thereby positively impacting human health.
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Affiliation(s)
- Hugo Duarte
- MED—Mediterranean Institute for Agriculture, Environment and Development, CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (H.D.); (L.G.); (A.R.); (B.M.)
| | - Ceferino Carrera
- Departamento de Química Analítica, Facultad de Ciencias, Universidad de Cádiz, 11510 Cadiz, Spain (M.P.)
| | - María José Aliaño-González
- MED—Mediterranean Institute for Agriculture, Environment and Development, CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (H.D.); (L.G.); (A.R.); (B.M.)
- Departamento de Química Analítica, Facultad de Ciencias, Universidad de Cádiz, 11510 Cadiz, Spain (M.P.)
| | - Rocío Gutiérrez-Escobar
- IFAPA Rancho de la Merced, Ministry of Agriculture, Fisheries, Water and Rural Development, Junta de Andalucía, Cañada de la Loba, 11471 Jerez de la Frontera, Cádiz, Spain; (R.G.-E.); (M.J.J.-H.)
| | - María Jesús Jiménez-Hierro
- IFAPA Rancho de la Merced, Ministry of Agriculture, Fisheries, Water and Rural Development, Junta de Andalucía, Cañada de la Loba, 11471 Jerez de la Frontera, Cádiz, Spain; (R.G.-E.); (M.J.J.-H.)
| | - Miguel Palma
- Departamento de Química Analítica, Facultad de Ciencias, Universidad de Cádiz, 11510 Cadiz, Spain (M.P.)
| | - Ludovina Galego
- MED—Mediterranean Institute for Agriculture, Environment and Development, CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (H.D.); (L.G.); (A.R.); (B.M.)
- Instituto Superior de Engenharia, Universidade do Algarve, Campus da Penha, 8005-139 Faro, Portugal
| | - Anabela Romano
- MED—Mediterranean Institute for Agriculture, Environment and Development, CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (H.D.); (L.G.); (A.R.); (B.M.)
| | - Bruno Medronho
- MED—Mediterranean Institute for Agriculture, Environment and Development, CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, Ed. 8, 8005-139 Faro, Portugal; (H.D.); (L.G.); (A.R.); (B.M.)
- FSCN—Fibre Science and Communication Network Research Center, Surface and Colloid Engineering Deparment, Mid Sweden University, SE-851 70 Sundsvall, Sweden
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Chan HW, Lee HW, Chow S, Lam DCL, Chow SF. Integrated continuous manufacturing of inhalable remdesivir nanoagglomerate dry powders: Design, optimization and therapeutic potential for respiratory viral infections. Int J Pharm 2023; 644:123303. [PMID: 37579825 DOI: 10.1016/j.ijpharm.2023.123303] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 08/16/2023]
Abstract
While inhalable nanoparticle-based dry powders have demonstrated promising potential as next-generation respiratory medicines, erratic particle redispersibility and poor manufacturing reproducibility remain major hurdles hindering their translation from bench to bedside. We developed a one-step continuous process for fabricating inhalable remdesivir (RDV) nanoagglomerate dry powder formulations by integrating flash nanoprecipitation and spray drying. The nanosuspension formulation was optimized using a three-factor Box-Behnken design with a z-average particle size of 233.3 ± 2.3 nm and < 20% size change within six hours. The optimized inhalable nanoagglomerate dry powder formulation produced by spray drying showed adequate aqueous redispersibility (Sf/Si = 1.20 ± 0.01) and in vitro aerosol performance (mass median aerodynamic diameter of 3.80 ± 0.58 µm and fine particle fraction of 39.85 ± 10.16%). In A549 cells, RDV nanoparticles redispersed from the inhalable nanoagglomerate powders displayed enhanced and accelerated RDV cell uptake and negligible cytotoxicity at therapeutic RDV concentrations. No statistically significant differences were observed in the critical quality attributes of the inhalable nanoagglomerate powders produced from the continuous manufacturing and standalone batch modes. This work demonstrates the feasibility of large-scale continuous manufacturing of inhalable nanoagglomerate dry powder formulations, which pave the way for their clinical translation.
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Affiliation(s)
- Ho Wan Chan
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Hok Wai Lee
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Stephanie Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - David Chi Leung Lam
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China; Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, Hong Kong SAR, China.
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Li Y, Guan Q, Xu J, Zhang H, Liu S, Ding Z, Wang Q, Wang Z, Liu M, Zhao Y. Comparative study of cyclosporine A liposomes and emulsions for ophthalmic drug delivery: Process optimization through response surface methodology (RSM) and biocompatibility evaluation. Colloids Surf B Biointerfaces 2023; 225:113267. [PMID: 36940502 DOI: 10.1016/j.colsurfb.2023.113267] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/23/2023] [Accepted: 03/12/2023] [Indexed: 03/16/2023]
Abstract
Herein, cyclosporine A loaded liposomes (CsA-Lips) were fabricated aimed at improving the biocompatibility of the ophthalmic formulation and getting rid of the direct contact of ocular tissues with irritant excipients. Response surface methodology was exploited in order to investigate the influence of miscellaneous factors on the key characteristics of CsA-Lips. Ratio of EPC:CsA, ratio of EPC:Chol, and stirring speed were selected as the independent variables, while size, drug-loading content (DL), and drug-loading content (DL) loss rate were applied as the response variables. In case of the maximal lack-of-fit p-value and minimum sequential p-value, quadratic model was regarded as the fittest model to analyze the data. The correlation of independent variables with response variables was described by three-dimension surface figures. Optimized formulation for CsA-Lips was obtained with ratio of EPC:CsA set as 15, ratio of EPC:Chol set as 2, and stirring speed set as 800 rpm. The particle size of CsA-Lips was 129.2 nm after optimalization while their TEM images exhibited spherical unilamellar vesicles with clearly shell-core structure. CsA released more rapidly from CsA-Lips in comparison with self-made emulsion and Restasis®. Besides, minimum cytotoxicity of CsA-Lips was perceived via both MTT method and LDH method, indicating the excellent compatibility of the ophthalmic formulation. Simultaneously, CsA-Lips showed enhanced nonspecific internalization in the cytoplasm with a time-dose-dependent manner. In conclusion, CsA-Lips could be adhibited as the hopeful ophthalmic drug delivery system clinically for dry eye syndrome (DES).
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Affiliation(s)
- Yinglan Li
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Qingran Guan
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Jie Xu
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Huaizhen Zhang
- School of Geography and Environment, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Sisi Liu
- Hunan Academy of Forestry, Changsha, Hunan 410004, People's Republic of China
| | - Zhuang Ding
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Qingpeng Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Zhengping Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Min Liu
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Yanna Zhao
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China.
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Al-Qahtani SD, Ibarhiam S, Sallam S, Almotairy ARZ, Al-Bonayan AM, Munshi AM, El-Metwaly NM. Magnetic sodium alginate grafted with waste carbonaceous material for diclofenac sodium removal: optimization of operational parameters and process mechanism. RSC Adv 2023; 13:6466-6480. [PMID: 36860528 PMCID: PMC9969960 DOI: 10.1039/d3ra00495c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/17/2023] [Indexed: 03/02/2023] Open
Abstract
As their manufacturing and consumption have increased, pharmaceutical chemicals have increasingly been found in wastewater. It is necessary to look into more effective methods, including adsorption, because current therapies can't completely eliminate these micro contaminants. This investigation aims to assess the diclofenac sodium (DS) adsorption onto an Fe3O4@TAC@SA polymer in a static system. Through Box-Behnken design (BBD), system optimization was carried out, and the ideal conditions - adsorbent mass of 0.01 g and agitation speed of 200 rpm - were chosen. The adsorbent was created utilizing X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR), allowing us to gain a comprehensive understanding of its properties. The analysis of the adsorption process revealed that the external mass transference was the primary rate-controlling step, and the Pseudo-Second-Order model demonstrated the best correlation to kinetic experimental results. An endothermic, spontaneous adsorption process took place. The removal capacity was 858 mg g-1, which is a respectable result when compared to other adsorbents that have been utilized in the past to remove DS. Ion exchange, π-π interactions, electrostatic pore filling and hydrogen bonding all play a role in the adsorption of DS on the Fe3O4@TAC@SA polymer. After careful examination of the adsorbent towards a true sample, it was determined to be highly efficient after three regenerative cycles.
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Affiliation(s)
- Salhah D Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University P.O. Box 84428 Riyadh 11671 Saudi Arabia
| | - Saham Ibarhiam
- Department of Chemistry, College of Science, University of Tabuk 71474 Tabuk Saudi Arabia
| | - Sahar Sallam
- Department of Chemistry, Faculty of Science, Jazan University, Jazan P. O. 45142 Saudi Arabia
| | - Awatif R Z Almotairy
- Department of Chemistry, Faculty of Science, Taibah University Yanbu 30799 Saudi Arabia
| | - Ameena M Al-Bonayan
- Department of Chemistry, Faculty of Science, Mansoura University El-Gomhoria Street 35516 Egypt
| | - Alaa M Munshi
- Department of Chemistry, Faculty of Science, Mansoura University El-Gomhoria Street 35516 Egypt
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm Al Qura University Makkah 24230 Saudi Arabia
- Department of Chemistry, Faculty of Science, Mansoura University El-Gomhoria Street 35516 Egypt
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8
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Liang Z, Liu K, Li R, Ma B, Zheng W, Yang S, Zhang G, Zhao Y, Chen J, Zhao M. An instant beverage rich in nutrients and secondary metabolites manufactured from stems and leaves of Panax notoginseng. Front Nutr 2022; 9:1058639. [PMID: 36570153 PMCID: PMC9767984 DOI: 10.3389/fnut.2022.1058639] [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: 09/30/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction Radix Notoginseng, one of the most famous Chinese traditional medicines, is the dried root of Panax notoginseng (Araliaceae). Stems and leaves of P. notoginseng (SLPN) are rich in secondary metabolites and nutrients, and authorized as a food resource, however, its utilization needs further research. Methods A SLPN-instant beverage was manufactured from SLPN through optimization by response surface design with 21-fold of 48.50% ethanol for 39 h, and this extraction was repeated twice; the extraction solution was concentrated to 1/3 volume using a vacuum rotatory evaporator at 45°C, and then spray dried at 110°C. Nutritional components including 14 amino acids, ten mineral elements, 15 vitamins were detected in the SLPN-instant beverage; forty-three triterpenoid saponins, e.g., ginsenoside La, ginsenoside Rb3, notoginsenoside R1, and two flavonoid glycosides, as well as dencichine were identified by UPLC-MS. Results The extraction rate of SLPN-instant beverage was 37.89 ± 0.02%. The majority nutrients were Gly (2.10 ± 0.63 mg/g), His (1.23 ± 0.07 mg/g), α-VE (18.89 ± 1.87 μg/g), β-VE (17.53 ± 1.98 μg/g), potassium (49.26 ± 2.70 mg/g), calcium (6.73 ± 0.27 mg/g). The total saponin of the SLPN-instant beverage was 403.05 ± 34.98 mg/g, majority was notoginsenoside Fd and with contents of 227 ± 2.02 mg/g. In addition, catechin and γ-aminobutyric acid were detected with levels of 24.57 ± 0.21 mg/g and 7.50 ± 1.85 mg/g, respectively. The SLPN-instant beverage showed good antioxidant activities with half maximal inhibitory concentration (IC50) for scavenging hydroxyl (OH-) radicals, superoxide anion (O2-) radicals, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS+) radicals were 0.1954, 0.2314, 0.4083, and 0.3874 mg/mL, respectively. Conclusion We optimized an analytical method for in depth analysis of the newly authorized food resource SLPN. Together, an instant beverage with antioxidant activity, rich in nutrients and secondary metabolites, was manufactured from SLPN, which may improve the utilization of SLPN.
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Affiliation(s)
- Zhengwei Liang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan, China,Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China,The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern, Kunming, Yunnan, China
| | - Kunyi Liu
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China,The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern, Kunming, Yunnan, China,College of Wuliangye Technology and Food Engineering, Yibin Vocational and Technical College, Yibin, Sichuan, China
| | - Ruoyu Li
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China,The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern, Kunming, Yunnan, China,College of Tea Science, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Baiping Ma
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Wei Zheng
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Shengchao Yang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan, China,Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China,The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern, Kunming, Yunnan, China
| | - Guanghui Zhang
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan, China,Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China,The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern, Kunming, Yunnan, China
| | - Yinhe Zhao
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Junwen Chen
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, Yunnan, China,Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China,The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern, Kunming, Yunnan, China,*Correspondence: Junwen Chen,
| | - Ming Zhao
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, China,The Key Laboratory of Medicinal Plant Biology of Yunnan Province, National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern, Kunming, Yunnan, China,College of Tea Science, Yunnan Agricultural University, Kunming, Yunnan, China,Ming Zhao,
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9
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Ultrasound-Assisted Extraction of Polyphenols from Maritime Pine Residues with Deep Eutectic Solvents. Foods 2022; 11:foods11233754. [PMID: 36496562 PMCID: PMC9738461 DOI: 10.3390/foods11233754] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 11/23/2022] Open
Abstract
Deep eutectic solvents represent an important alternative in the field of green solvents due to their low volatility, non-toxicity, and low synthesis cost. In the present investigation, we propose the production of enriched polyphenolic extracts from maritime pine forest residues via an ultrasound-assisted approach. A Box-Behnken experimental design with a response surface methodology was used with six variables to be optimized: solid-to-solvent ratio, water percentage, temperature and time of extraction, amplitude, and catalyst concentration. The mixture of levulinic and formic acids achieved the highest extraction yield of polyphenols from pine needle and bark biomass. In addition, the solid-to-solvent ratio was found to be the only influential variable in the extraction (p-value: 0.0000). The optimal conditions were established as: 0.1 g of sample in 10 mL of LA:FA (70:30%, v/v) with 0% water and 0 M H2SO4 heated to 30 °C and extracted during 40 min with an ultrasound amplitude of 80% at 37 kHz. The bioactive properties of polyphenol-enriched extracts have been proven with significant antioxidant (45.90 ± 2.10 and 66.96 ± 2.75 mg Trolox equivalents/g dw) and antimicrobial activities. The possibility to recycle and reuse the solvent was also demonstrated; levulinic acid was successfully recovered from the extracts and reused in novel extractions on pine residues. This research shows an important alternative to obtaining polyphenol-enriched extracts from forest residues that are commonly discarded without any clear application, thus opening an important window toward the valorization of such residues.
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10
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Srichana T, Eze FN, Thawithong E. A facile one-step jet-millingapproach for the preparation of proliposomal dry powder for inhalationaseffective delivery system for anti-TBtherapeutics. Drug Dev Ind Pharm 2022; 48:528-538. [PMID: 36214588 DOI: 10.1080/03639045.2022.2135101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective: Physicochemical characterization and assessmentof aerosol dispersion performance of anti-TB proliposome dry powders for inhalation (DPIs) prepared using a single-step jet-milling (JM) approach. Significance: Conventional tuberculosis treatment involves isoniazid and rifampicin as first-line agents in extended oral multi-drug regimes. Liposomal DPIs are emerging as promising alternatives for targeted delivery of anti-TB agents to alveolar macrophages harboring Mycobacterium tuberculosis. However, traditional approaches for liposomal DPI preparation are tedious, time consuming and require sophisticated/expensive equipment. The proposed JM technique for preparation of proliposome DPIs could obviate these limitations and facilitate use of these drugs for more effective and safer treatment. Methods: Proliposome DPIs containing isoniazid and/or rifampicin, cholesterol and cholesterol sulfate were successfully prepared via JM (injection pressure, 7.4 bar; milling pressure, 3.68 bar). Their physicochemical, content uniformity, and in vitro aerosol dispersion performance were assessed using scanning electron microscopy/energy-dispersive X-ray spectroscopy, transmission electron microscopy, dynamic light scattering/Zeta potential, X-ray diffraction spectroscopy, thermogravimetric analysis, high performance liquid chromatography, and the Next Generation Impactor. Results: The DPIs exhibited consistent, spherically shaped, smooth particles. Drug particles were evenly distributed with acceptable content uniformity. Drug crystallinity was not significantly affected by milling and the formulations had minimal (<2.0%) water content. After reconstitution of theDPIs, the hydrodynamic size was about 370.9 - 556.2nm and charge was-12.3 - -47.3mV. Furthermore, the proliposome DPIs presented emitted dose (69.04 - 89.03%), fine particle fraction,< 4.4 µm (13.7 - 57.8%), and mass median aerodynamic diameter (<3.0 µm), which satisfied the requirements for deep lung delivery. Conclusion: The proposed approach was suitable for preparation of proliposome DPIs that could be deployed for local targeting of the lower respiratory tract for treatment of tuberculosis.
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Affiliation(s)
- Teerapol Srichana
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.,Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Fredrick Nwude Eze
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Ekawat Thawithong
- Drug Delivery System Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
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11
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Qi Y, Xu J, Zeng Z, Xue W, Zhu Z. Synthesis of Methyl Sorbate Catalyzed by Deep Eutectic Solvent Based on Choline Chloride: Kinetics and Optimization. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu Qi
- School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Jumei Xu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Zuoxiang Zeng
- School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Weilan Xue
- School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
| | - Zhu Zhu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
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12
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Dong J, Zhou K, Ge X, Xu N, Wang X, He Q, Zhang C, Chu J, Li Q. Effects of Extraction Technique on the Content and Antioxidant Activity of Flavonoids from Gossypium Hirsutum linn. Flowers. Molecules 2022; 27:molecules27175627. [PMID: 36080389 PMCID: PMC9458133 DOI: 10.3390/molecules27175627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/19/2022] [Accepted: 08/26/2022] [Indexed: 11/28/2022] Open
Abstract
Cotton is one of the Uyghur medical materials in China and is rich in flavonoids. Flavonoids have important pharmacological effects. The yield of flavonoids in traditional extraction methods is low, which affects the development of flavonoids. Therefore, it is urgent to optimize the extraction techniques. The yield of flavonoids in cotton flowers was effectively improved by response surface methodology, and the highest yield of flavonoids reached 5.66%, and the optimal extraction process conditions were obtained. The DPPH free radical scavenging rate, hydroxyl free radical scavenging rate, superoxide anion free radical scavenging rate, and reducing ability were tested to reflect the antioxidant capacity of flavonoids. The flavonoids had an excellent antioxidant effect. Cell experiments suggested that the flavonoids had the effect of protecting glutamate-induced damage to HT-22 cells. The results of this study provide a theoretical basis for the extraction of cotton flowers flavonoids and the comprehensive evaluation of antioxidant products, as well as the extraction of other plant flavonoids.
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Affiliation(s)
- Jiaxing Dong
- Key Laboratory of Xi’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Research and Technology Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Kehai Zhou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agriculture Sciences (CAAS), Anyang 455000, China
| | - Xiaoyang Ge
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agriculture Sciences (CAAS), Anyang 455000, China
| | - Na Xu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea & Food Science and International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Xiao Wang
- Key Laboratory of Xi’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Qing He
- Key Laboratory of Xi’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Research and Technology Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Chenxu Zhang
- Key Laboratory of Xi’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Research and Technology Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Jun Chu
- Key Laboratory of Xi’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Research and Technology Center, Anhui University of Chinese Medicine, Hefei 230038, China
- Correspondence: (J.C.); (Q.L.)
| | - Qinglin Li
- Key Laboratory of Xi’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
- Research and Technology Center, Anhui University of Chinese Medicine, Hefei 230038, China
- Correspondence: (J.C.); (Q.L.)
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13
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Study on polyvinyl butyral purification process based on Box-Behnken design and artificial neural network. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.05.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Plaunt AJ, Nguyen TL, Corboz MR, Malinin VS, Cipolla DC. Strategies to Overcome Biological Barriers Associated with Pulmonary Drug Delivery. Pharmaceutics 2022; 14:pharmaceutics14020302. [PMID: 35214039 PMCID: PMC8880668 DOI: 10.3390/pharmaceutics14020302] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/20/2022] [Accepted: 01/23/2022] [Indexed: 02/01/2023] Open
Abstract
While the inhalation route has been used for millennia for pharmacologic effect, the biological barriers to treating lung disease created real challenges for the pharmaceutical industry until sophisticated device and formulation technologies emerged over the past fifty years. There are now several inhaled device technologies that enable delivery of therapeutics at high efficiency to the lung and avoid excessive deposition in the oropharyngeal region. Chemistry and formulation technologies have also emerged to prolong retention of drug at the active site by overcoming degradation and clearance mechanisms, or by reducing the rate of systemic absorption. These technologies have also been utilized to improve tolerability or to facilitate uptake within cells when there are intracellular targets. This paper describes the biological barriers and provides recent examples utilizing formulation technologies or drug chemistry modifications to overcome those barriers.
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15
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Atila Dinçer C, Gökalp C, Getiren B, Yildiz A, Yildiz N. Supercritical carbon dioxide extraction of Usnea longissima (L.) Ach.: Optimization by Box-Behnken design (BBD). Turk J Chem 2021; 45:1248-1256. [PMID: 34707448 PMCID: PMC8517611 DOI: 10.3906/kim-2102-66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/21/2021] [Indexed: 11/29/2022] Open
Abstract
Usnic acid (UA) was extracted from
Usnea longissima
(L.) Ach. in supercritical carbon dioxide (SC-CO2) medium. The selected process parameters were extraction temperature (35–45 °C), amount of co-solvent (0%–5%) and extraction time (5–9 h). These parameters were applied to Box-Behnken design (BBD) belonging to response surface methodology (RSM) to determine optimum process parameters for the highest amount of UA in the extract. g UA/100g lichen, extraction yield % and UA content values were calculated in the range of 0.045–0.317, 2.77–5.4 and 71%–82% in different experimental conditions, respectively. The optimum conditions were predicted as 42 °C, 4.3% (ethanol) and 7.48 h. It was determined that the predicted and experimental values of g UA/100g lichen were compatible, and the suggested model was valid.
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Affiliation(s)
- Ceren Atila Dinçer
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
| | - Ceren Gökalp
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
| | - Bengü Getiren
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
| | - Atila Yildiz
- Department of Biology, Ankara University, Ankara Turkey
| | - Nuray Yildiz
- Department of Chemical Engineering, Faculty of Engineering, Ankara University, Tandoğan, Ankara Turkey
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16
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Optimizing Uniaxial Oil Extraction of Bulk Rapeseeds: Spectrophotometric and Chemical Analyses of the Extracted Oil under Pretreatment Temperatures and Heating Intervals. Processes (Basel) 2021. [DOI: 10.3390/pr9101755] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Optimizing the operating factors in edible oil extraction requires a statistical technique such as a response surface methodology for evaluating their effects on the responses. The examined input factors in this study were the diameter of pressing vessel, VD (60, 80, and 100 mm), temperature, TPR (40, 60, and 80 °C), and heating time, HTM (30, 60 and 90 min). The combination of these factors generated 17 experimental runs where the mass of oil, oil yield, oil extraction efficiency, and deformation energy were calculated. Based on the response surface regression analysis, the combination of the optimized factors was VD: 100 (+1) mm; TPR: 80 °C (+1) and HTM: 60 (0) min); VD: 60 (–1) mm; TPR: 80 °C (+1) and HTM: 75 (+0.5) min and VD: 100 (+1) mm; TPR: 80 °C (+1) and HTM: 90 (+1). The absorbance and transmittance values significantly (p < 0.05) correlated with the wavelength and temperature, but they did not correlate significantly (p > 0.05) with heating time. The peroxide value did not correlate significantly with temperature, however, it correlated significantly with heating time. Neither the acid value nor the free fatty acid value correlated with both temperature and heating time. The findings of the present study are part of our continuing research on oilseeds’ processing optimization parameters.
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17
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Post-Processing Techniques for the Improvement of Liposome Stability. Pharmaceutics 2021; 13:pharmaceutics13071023. [PMID: 34371715 PMCID: PMC8309137 DOI: 10.3390/pharmaceutics13071023] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/25/2021] [Accepted: 06/30/2021] [Indexed: 02/06/2023] Open
Abstract
Liposomes have been utilized as a drug delivery system to increase the bioavailability of drugs and to control the rate of drug release at the target site of action. However, the occurrence of self-aggregation, coalescence, flocculation and the precipitation of aqueous liposomes during formulation or storage can cause degradation of the vesicle structure, leading to the decomposition of liposomes. To increase the stability of liposomes, post-processing techniques have been applied as an additional process to liposomes after formulation to remove water and generate dry liposome particles with a higher stability and greater accessibility for drug administration in comparison with aqueous liposomes. This review covers the effect of these techniques including freeze drying, spray drying and spray freeze drying on the stability, physicochemical properties and drug encapsulation efficiency of dry liposomes. The parameters affecting the properties of liposomes during the drying process are also highlighted in this review. In addition, the impact of using a protective agent to overcome such limitations of each process is thoroughly discussed through various studies.
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18
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Khatib I, Ke WR, Cipolla D, Chan HK. Storage stability of inhalable, controlled-release powder formulations of ciprofloxacin nanocrystal-containing liposomes. Int J Pharm 2021; 605:120809. [PMID: 34144139 DOI: 10.1016/j.ijpharm.2021.120809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 06/07/2021] [Accepted: 06/13/2021] [Indexed: 10/21/2022]
Abstract
Novel inhalable and controlled release powder formulations of ciprofloxacin nanocrystals inside liposomes (CNL) were recently developed. In the present study, the storage stability of CNL powders consisting of lyoprotectant (i.e. sucrose or lactose), lipids, ciprofloxacin (CIP), and magnesium stearate or isoleucine was investigated. These powders were produced by spray drying, collected in a dry box at <15% relative humidity (RH), then stored at room temperature and either 4 or 20 %RH. Liposomal integrity, CIP encapsulation efficiency (EE), in vitro drug release (IVR), aerosol performance, and solid-state properties were examined over six months. Sucrose CNL powder exhibited consistent liposomal integrity, aerosol performance, and controlled release of CIP over six months of storage at 4 %RH. However, storage of the powder at 20 %RH for the same period caused sucrose crystallization and consequently a significant drop in EE and aerosol performance (p-values < 0.05), along with the IVR of CIP becoming similar to that of the non-crystalline CIP liposomal dispersions (f2 > 50). Lactose CNL maintained superior aerosol performance over the six months irrespective of the storage RH. However, liposomal instability occurred at both RHs within the first month of storage with a significant drop in EE and an increase in liposome size (p-values < 0.05). Moreover, the IVR assay of CIP from lactose CNL showed a less controlled release and a substantial difference (f2 < 50) from its initial value after six months regardless of the storage RHs. In conclusion, dry powder inhalers of CNL were physiochemically stable in sucrose lyoprotectant when stored below 4 %RH at room temperature for six months.
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Affiliation(s)
- Isra Khatib
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2006, Australia
| | - Wei-Ren Ke
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2006, Australia
| | | | - Hak-Kim Chan
- Advanced Drug Delivery Group, Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, NSW 2006, Australia.
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