Category: Scientific papers

Spray-Freeze-Drying approach for soluble coffee processing and its effect on quality characteristics S. Padma Ishwarya, C. Anandharamakrishnan Abstract The suitability of Spray-Freeze-Drying (SFD) technique for soluble coffee processing was evaluated. The resultant product characteristics were compared against its spray-dried (SD) and freeze-dried (FD) counterparts. SFD and FD coffee powders exhibited a comparable aroma profile as… Continue reading Spray-Freeze-Drying approach for soluble coffee processing and its effect on quality characteristics

A study to develop nano-spray freeze dried Co/Ce–La catalyst for the production of hydrogen from bio-renewable feedstock Dalia R. Abd El-Hafiz, Mohamed A. Ebiad Abstract Ultra-fine Ce–Co and Cox/Ce–La (x = 4 and 10%) solid solutions (SS) were prepared for the first time by spray freezing technology, and evaluated in bio-ethanol steam reforming reaction for… Continue reading A study to develop nano-spray freeze dried Co/Ce–La catalyst for the production of hydrogen from bio-renewable feedstock

Jet-vortex spray freeze drying for the production of inhalable lyophilisate powders Wanning S, Süverkrüp R, Lamprecht A Abstract Spray-freeze-dried powders were suggested for nasal, epidermal (needle-free injection) or pulmonary application of proteins, peptides or nucleic acids. In spray-freeze-drying processes an aqueous solution is atomized into a refrigerant medium and subsequently dried by sublimation. Droplet-stream generators… Continue reading Jet-vortex spray freeze drying for the production of inhalable lyophilisate powders

Inhalable clarithromycin liposomal dry powders using ultrasonic spray freeze drying Tiantian Yea, Jiaqi Yub, Qiuhua Luoa, Shujun Wanga, Hak-Kim Chanb Abstract Liposomal dry powder inhalation for the pulmonary administration has a great potential to improve the efficacy of antibiotics while reducing adverse effects. To improve aerosolisation efficiency of liposomal dry powders, we prepared clarithromycin liposomal… Continue reading Inhalable clarithromycin liposomal dry powders using ultrasonic spray freeze drying

Spray freeze-dried nanofibrillated cellulose aerogels with thermal superinsulating properties Clara Jiménez-Saelicesa, Bastien Seantiera, Bernard Cathalab, Yves Grohensa Abstract Nanofibrillated cellulose (NFC) aerogels were prepared by spray freeze-drying (SFD). Their structural, mechanical and thermal insulation properties were compared to those of NFC aerogels prepared by conventional freeze-drying (CFD). The purpose of this investigation is to develop… Continue reading Spray freeze-dried nanofibrillated cellulose aerogels with thermal superinsulating properties

A new class of closed-cell aluminium foams reinforced with carbon nanotubes I. Duartea, E. Venturaa, S. Olherob, J.M.F. Ferreirab Abstract This manuscript reports on the fabrication of closed-cell aluminium alloy foams reinforced with carbon nanotubes (CNTs) through a novel approach that combines the powder metallurgy method with colloidal processing step that grants uniform dispersion of… Continue reading A new class of closed-cell aluminium foams reinforced with carbon nanotubes

Enhancement of oral bioavailability of vitamin E by spray-freeze drying of whey protein microcapsules Parthasarathi S., C. Anandharamakrishnana Abstract Vitamin E microcapsules were effectively prepared using three different techniques: spray drying, freeze-drying and spray freeze-drying with whey protein isolate as an encapsulating agent. The quality of microcapsules was evaluated by particle size distribution, surface morphology,… Continue reading Enhancement of oral bioavailability of vitamin E by spray-freeze drying of whey protein microcapsules

Aerodynamic Droplet Stream Expansion for the Production of Spray Freeze-Dried Powders Wanning S, Süverkrüp R, Lamprecht A Abstract In spray freeze-srying (SFD), a solution is sprayed into a refrigerant medium, frozen, and subsequently sublimation dried, which allows the production of flowable lyophilized powders. SFD allows commonly freeze-dried active pharmaceutical ingredients (e.g., proteins and peptides) to… Continue reading Aerodynamic Droplet Stream Expansion for the Production of Spray Freeze-Dried Powders

Aerosol assisted self-assembly as a route to synthesize solid and hollow spherical lignin colloids and its utilization in layer by layer deposition Mishra PK, Wimmer R Abstract Lignin, a major constituent of plant cell-wall and by-product of paper based industries is traditionally used for low value applications (heat or electricity generation), but its potential in… Continue reading Aerosol assisted self-assembly as a route to synthesize solid and hollow spherical lignin colloids and its utilization in layer by layer deposition

Spray freeze drying as an alternative technique for lyophilization of polymeric and lipid-based nanoparticles Mohamed Ehab Alia, Alf Lamprechta Abstract The use of nanoparticles for drug delivery is still restricted by their limited stability when stored in an aqueous medium. Freeze drying is the standard method for long-term storage of colloidal nanoparticles; however the method… Continue reading Spray freeze drying as an alternative technique for lyophilization of polymeric and lipid-based nanoparticles