scholarly journals Characterization of Inclusion Complex of Croton zehntneri Essential Oil and β-Cyclodextrin Prepared by Spray Drying and Freeze Drying

2019 ◽  
Vol 11 (2) ◽  
pp. 529-542 ◽  
Author(s):  
Lorenna Fonseca ◽  
Marcio dos S. Rocha ◽  
Larisse C. F. Brito ◽  
Edymilaís S. Sousa ◽  
Fernanda S. Reinaldo ◽  
...  
Keyword(s):  
Essential Oil ◽  
Inclusion Complex ◽  
Spray Drying ◽  
Freeze Drying

Characterization of the inclusion complex of the essential oil of Lantana camara L. and β-cyclodextrin by vibrational spectroscopy, GC–MS, and X-ray diffraction

2018 ◽  
Vol 91 (1-2) ◽  
pp. 95-104 ◽  
Author(s):  
Márcio dos S. Rocha ◽  
Sidney G. de Lima ◽  
Bartolomeu C. Viana ◽  
José Galberto Martins Costa ◽  
Francisco E. P. Santos
Keyword(s):  
Essential Oil ◽  
Inclusion Complex ◽  
Vibrational Spectroscopy ◽  
Lantana Camara ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals Synthesis and Characterization of Orotic Acid Loaded Chitosan Inclusion Complex

2020 ◽  
Vol 10 (01) ◽  
pp. 1-4
Author(s):  
ABM Helal Uddin ◽  
Abdelkader Hassani ◽  
Abul K. Azad ◽  
Hamid H. Enezei ◽  
Siti A. Hussain
Keyword(s):  
Electron Microscopy ◽  
Inclusion Complex ◽  
Orotic Acid ◽  
Drug Delivery Systems ◽  
Freeze Drying ◽  
Synthesis And Characterization ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Transmission Electron

The current study aims to improve drug release properties of orotic acid loaded with chitosan inclusion complex (OA/CS). The OA/CS inclusion complex was synthesized using the freeze-drying technique. The characterization of inclusion OA/CS was carried out using fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), differential scanning calorimetry (DSC), zeta sizer, and transmission electron microscopy (TEM). Furthermore, the size of OA/CS ranged between 58 nm and 200 nm, and the zeta potential was 30 mV. Thus, this study indicates that OA/CS has a promising future to develop a carrier for drug delivery systems further.

Preparation and characterization of dried cellulose nanofibrils

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jianping Ni ◽  
Chen Gong ◽  
Zhenghua Su ◽  
Chao Tian
Keyword(s):  
Spray Drying ◽  
Freeze Drying ◽  
Cellulose Nanofibrils ◽  
Time Dependent ◽  
X Ray ◽  
Original State ◽  
Final Mass ◽  
Freeze Dried ◽  
Spray Dried

Abstract One of the main manufacturing challenges is to obtain dried cellulose nanofibrils (CNFs) so that they can be cost effectively transported to customers. This work presents a study on using two methods of drying: freeze drying and spray drying; these dried CNFs were then characterized. The dried CNFs from either freeze drying or spray drying could not recover their original state after simple re-dispersion in water. Compared to spray dried CNFs, the microstructure of the freeze dried CNFs remained in a better shape. This was because the packing of nanofibrils as a result of freeze drying was not as tight as that from spray drying. It was demonstrated by the lower final mass residue and crystallinity of the freeze-dried CNFs, which led to better re-dispersion in water. X-ray diffractometry proved the occurrence of aggregation/hornification of the dried CNFs with increased crystallinity. Time-dependent sedimentation confirmed that the dried CNFs were incapable of forming stable water-re-dispersible suspensions.

Characterization of Hazelnut Milk Powders: A Comparison of Spray-Drying and Freeze-Drying

2018 ◽  
Vol 14 (11-12) ◽  
Author(s):  
Ertan Ermis ◽  
Kübra Özkan Güner ◽  
Mustafa Tahsin Yilmaz
Keyword(s):  
Spray Drying ◽  
Freeze Drying ◽  
Milk Powder ◽  
Angle Of Repose ◽  
Drying Process ◽  
Residual Moisture ◽  
Hausner Ratio ◽  
Powder Samples ◽  
Supporting Material

Abstract Production of hazelnut milk powder (HMP) was investigated using maltodextrin (MD) as supporting material. Spray-drying and freeze-drying techniques were used to obtain the powder material. MD was added at concentrations of 5%, 10% and 15% (w/w) prior to drying. The powder properties were evaluated by determining flowing properties (Hausner ratio and angle of repose), thermal behaviour using DSC, molecular properties using FTIR, solubility and zeta potential. Hausner Ratio for both spray dried (SDHMP) and freze-dried (FDHMP) samples varied from 1.30 to 1.64 corresponding to very poor flow. The FDHM powder samples exhibited slightly lower Hausner Ratio values than SDHM powders. FTIR spectras showed that both SDHM and FDHM exhibited similar absorbance characteristics with slight differences. Lower endothermic transition temperatures were recorded from FDHMP when compared to SDHMP. The solubility in water for both powder samples ranged from 20 to 65 % depending on the drying method and MD content. Based on the residual moisture content, water activity, solubility and flowability, spray drying process was found to produce better quality powders compared to freeze drying process.

scholarly journals Characterization of Colombian Silk Sericin Dehydrated by Spray Drying and Freeze Drying

2018 ◽  
Vol 15 (SPL) ◽  
pp. 5-14 ◽  
Author(s):  
Castrillon Diana C. ◽  
Velez Lina M. ◽  
Hincapie Gustavo A. ◽  
Alvarez Catalina
Keyword(s):  
Spray Drying ◽  
Freeze Drying ◽  
Silk Sericin

Characterization of Anemopsis californica essential oil–β-cyclodextrin inclusion complex as antioxidant prolonged-release system

2017 ◽  
Vol 71 (7) ◽  
pp. 1331-1342 ◽  
Author(s):  
Liliana Maribel Perez-Perez ◽  
Lorena Armenta-Villegas ◽  
Hisila Santacruz-Ortega ◽  
Melesio Gutiérrez-Lomelí ◽  
José Antonio Aguilar ◽  
...  
Keyword(s):  
Essential Oil ◽  
Inclusion Complex ◽  
Prolonged Release ◽  
Release System ◽  
Cyclodextrin Inclusion ◽  
Anemopsis Californica ◽  
Cyclodextrin Inclusion Complex

scholarly journals Characterization of new sources of derivative starches as wall materials of essential oil by spray drying

2013 ◽  
Vol 33 (4) ◽  
pp. 757-764 ◽  
Author(s):  
Iñigo Verdalet-Guzmán ◽  
Laura Martínez-Ortiz ◽  
Fernando Martínez-Bustos
Keyword(s):  
Essential Oil ◽  
Spray Drying ◽  
Wall Materials

scholarly journals Preparation methods and release kinetics of Litsea cubeba essential oil microcapsules

RSC Advances ◽  
2018 ◽  
Vol 8 (52) ◽  
pp. 29980-29987 ◽  
Author(s):  
Yan-hong Yang ◽  
Xiang-zhou Li ◽  
Sheng Zhang
Keyword(s):  
Essential Oil ◽  
Spray Drying ◽  
Freeze Drying ◽  
Release Kinetics ◽  
Saturated Solution ◽  
Wall Material ◽  
Release Rates ◽  
Preparation Methods ◽  
Litsea Cubeba ◽  
Kinetics Of

LCEO microcapsules were prepared by various preparation methods such as grinding, saturated solution, freeze-drying, spray-drying with β-CD used as the wall material. Avrami's model was used to simulate the release rates of microcapsules.

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