Protein-Stabilized Palm-Oil-in-Water Emulsification Using Microchannel Array Devices under Controlled Temperature

Microchannel (MC) emulsification for the preparation of monodisperse oil-in-water (O/W) and water-in-oil-in-water (W/O/W) emulsions containing palm oil as the oil phase was investigated for application as basic material solid/semi-solid lipid microspheres for delivery carriers of nutrients and drugs. Emulsification was characterized by direct observation of droplet generation under various operation conditions, as such, the effects of type and concentration of emulsifiers, emulsification temperature, MC structure, and flow rate of to-be-dispersed phase on droplet generation via MC were investigated. Sodium caseinate (SC) was confirmed as the most suitable emulsifier among the examined emulsifiers, and monodisperse O/W and W/O/W emulsions stabilized by it were successfully obtained with 20 to 40 µm mean diameter (dm) using different types of MCs.

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Impact of Type of Sugar Beet Pectin–Sodium Caseinate Interaction on Emulsion Properties at pH 4.5 and pH 7

Foods ◽

10.3390/foods10030631 ◽

2021 ◽

Vol 10 (3) ◽

pp. 631

Author(s):

Zhang Juyang ◽

Bettina Wolf

Keyword(s):

Sugar Beet ◽

Storage Period ◽

Small Deformation ◽

Sodium Caseinate ◽

Ph Adjustment ◽

Potential Value ◽

Emulsifier System ◽

Oil In Water ◽

Droplet Sizes ◽

The Mean

Equal parts of sugar beet pectin and sodium caseinate were interacted through electrostatic attraction, enzymatic crosslinking, and the Maillard reaction to prepare three oil-in-water emulsifier systems. Oil-in-water emulsions (10%) were processed via high shear overhead mixing at the natural pH of the emulsifier systems, followed by pH adjustment to pH 4.5 and pH 7. The emulsions were stable against coalescence, except for a slight increase in the mean droplet size for the enzymatic cross-liked emulsion at pH 4.5 over a 14-day storage period. This emulsion also showed the lowest absolute zeta (ζ)-potential value of near 30 mV. The Maillard interaction emulsifier system resulted in larger droplet sizes compared to the other two emulsifier systems. Small deformation oscillatory shear rheology assessment of the emulsion cream phases revealed an impact of the emulsifier system design at pH 4.5.

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Separation of oil-in-water emulsions stabilized by different types of surfactants using electrospun fiber membranes

Journal of Membrane Science ◽

10.1016/j.memsci.2018.05.063 ◽

2018 ◽

Vol 563 ◽

pp. 247-258 ◽

Cited By ~ 21

Author(s):

Yi-Min Lin ◽

Gregory C. Rutledge

Keyword(s):

Electrospun Fiber ◽

Oil In Water ◽

Different Types ◽

Fiber Membranes

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Characterization of Coal Fly Ash, Bottom Ash and their Possibilities as Catalysts for Biodiesel Production

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.904.413 ◽

2021 ◽

Vol 904 ◽

pp. 413-418

Author(s):

Wilasinee Kingkam ◽

Sasikarn Nuchdang ◽

Dussadee Rattanaphra

Keyword(s):

Fly Ash ◽

Palm Oil ◽

Power Plants ◽

Coal Fly Ash ◽

Bottom Ash ◽

Biodiesel Production ◽

Catalyst Loading ◽

Free Lime ◽

Operation Conditions ◽

Class C

Coal fly ash (CFA) and bottom ash (BA) obtained from coal fired power plants in Thailand and local supplier were characterized using XRF, XRD and N2 adsorption-desorption techniques. Their possibilities for conversion of palm oil into biodiesel were investigated. Selected CFA was also modified with lanthanum (La) at different La loading and the influence of La loading on biodiesel conversion was evaluated. The resulted showed that the Class C CFA as contained large amount of CaO (free lime) could catalyze the transesterification to achieve the highest FAME content of 89% under the operation conditions; the reaction temperature of 200 °C, the reaction pressure of 39 bars, the catalyst loading of 5 wt% of oil, the molar of oil to methanol of 1:30 and the stirring speed of 600 rpm for 5 h. The addition of La on the Class C CFA had a negative effect on conversion of palm oil. The FAME content decreased gradually from 89 to 62% with increasing La loading from 0 to 1 wt%.

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Pickering Emulsion Stabilized By Hydrophobically Modified Spherical Cellulose Nanocrystals With Special Response To pH

10.21203/rs.3.rs-805075/v1 ◽

2021 ◽

Author(s):

Hui Dong ◽

Yifei Jiang ◽

Xia Li ◽

Wenjia Han ◽

Qijun Ding ◽

...

Keyword(s):

Cellulose Nanocrystals ◽

High Strength ◽

Rheological Characteristic ◽

Low Viscosity ◽

Hydrophobically Modified ◽

Oil In Water ◽

Mean Diameter ◽

Octenyl Succinic Anhydride ◽

The Fourier Transform ◽

Emulsifying Ability

Abstract The aims of this study were to study the performance changes of S-CNCs (spherical cellulose nanocrystals) modified by OSA (octenyl succinic anhydride) stabilized Pickering oil-in-water (O/W) emulsions. The Fourier transform infrared (FTIR) spectroscopy and contact angle change of the MS-CNCs (modified spherical cellulose nanocrystals) prove the successful modification of OSA and the improvement of hydrophobicity. The effect of a series of MS-CNCs concentration on the volume mean diameter, emulsion ratio, stability and micro-rheological characteristic viscosity of the emulsion was studied. The results show that the emulsifying ability of the S-CNCs have been greatly improved. In addition, at a concentration of 10g/l, the volume mean diameter reaches the nanometer level (0.95 µm), and the emulsion ratio reaches 100%, while still maintaining its unique ultra-low viscosity characteristics. Furthermore, the emulsion still exhibits high-strength resistance to ionic strength, but exhibits unique responsiveness to pH (pH≤5) at special stages.

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Relationship between Interfacial Behaviour of Native and Denatured Soybean Isolates and Microstructure and Coalescence of Oil in Water Emulsions - Effect of Salt and Protein Concentration

Food Science and Technology International ◽

10.1177/1082013203040899 ◽

2003 ◽

Vol 9 (6) ◽

pp. 409-419 ◽

Cited By ~ 29

Author(s):

G. G. Palazolo ◽

F. E. Mitidieri ◽

J. R. Wagner

Keyword(s):

Protein Concentration ◽

Droplet Size Distribution ◽

Sodium Caseinate ◽

Surface Hydrophobicity ◽

Low Protein ◽

Interfacial Pressure ◽

Salt Addition ◽

Oil In Water ◽

Dissociation Degree ◽

Interfacial Behaviour

The capacity of both native (NSI) and denatured (DSI) soybean isolates to stabilise oil in water emulsions under controlled shear stress was evaluated. The effect of protein concentration, thermal treatment of proteins and salt addition were studied. Sodium caseinate (SC) was used as standard protein. Emulsions prepared with NSI and SC were stable against coalescence in the whole range of protein concentration (1-10 mg/mL) in spite of showing different interfacial behaviour. The interfacial pressure of DSI was higher than NSI, according to its high dissociation degree and aromatic surface hydrophobicity. However, the emulsions prepared with this sample were unstable in the whole range of bulk protein concentrations. When NaCl was added, higher coalescence was obtained with NSI and SC emulsions at low protein concentrations, and stabilisation was reached only by increasing protein concentrations. At high protein concentrations(>5 mg/mL), DSI emulsions were stable in presence of salt, due to the formation of rigid flocs resistant to agitation. Droplet size distribution, microstructure and flocculation tendency of droplets explained the differences in coalescence of NSI, DSI and SC emulsions.

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Quality of screen printing in knit fabric for different mesh count on semi solid design

Journal of Textile Engineering & Fashion Technology ◽

10.15406/jteft.2020.06.00255 ◽

2020 ◽

Vol 6 (6) ◽

Author(s):

Rasheda Begum Dina ◽

Md Zulhash Uddin ◽

UmmulKhair Fatema

Keyword(s):

Screen Printing ◽

Visual Assessment ◽

Color Difference ◽

Mesh Screen ◽

Microscope Images ◽

Different Types ◽

Digital Microscope ◽

Semi Solid ◽

Screen Mesh

In semi solid design, the parameters of the quality of the printed fabric were color fastness, level of print detail, color difference, print coverage, saw-tooth effect, line sharpness etc. Actually, printed fabric quality was evaluated by these parameters. Again, print coverage, saw-tooth effect, line sharpness, etc. were examined by estimating different distances, angles etc. in printed fabric and these factors were compared with image positives. Mesh opening effect on the quality of screen printed fabric was investigated after printing the semi solid design on knit fabric using different mesh count screens and different types of the link. To print semi solid design on knit fabric different types of ink as well as non-identical mesh count was used. Then mesh screen out come on the design and form of printed fabric in screen printing was examined. For the evaluation of semi solid design effect there remains two different methods.The first one is visual assessment and another way is microscope observation. Here, to determine the probability of the amount of ink flowing by the screen, mesh opening area of every screen was considered and it was done from respective digital microscope images.

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Influence of xanthan gum on the formation and stability of sodium caseinate oil-in-water emulsions

Food Hydrocolloids ◽

10.1016/s0268-005x(01)00075-3 ◽

2001 ◽

Vol 15 (4-6) ◽

pp. 513-519 ◽

Cited By ~ 78

Author(s):

Y. Hemar ◽

M. Tamehana ◽

P.A. Munro ◽

H. Singh

Keyword(s):

Xanthan Gum ◽

Sodium Caseinate ◽

Oil In Water

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Properties of Palm Oil-in-Water Emulsions Stabilized by Nonionic Emulsifiers

Journal of Colloid and Interface Science ◽

10.1006/jcis.1996.0417 ◽

1996 ◽

Vol 181 (2) ◽

pp. 595-604 ◽

Cited By ~ 26

Author(s):

K. Ahmad ◽

C.C. Ho ◽

W.K. Fong ◽

D. Toji

Keyword(s):

Palm Oil ◽

Oil In Water

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Polyurethane/clay nanocomposites from palm oil for surface-coating applications

Polymers from Renewable Resources ◽

10.1177/2041247918800243 ◽

2018 ◽

Vol 9 (3-4) ◽

pp. 103-110

Author(s):

Satriananda ◽

Medyan Riza ◽

Sri Mulyati ◽

Farid Mulana

Keyword(s):

Palm Oil ◽

Local Area ◽

Basic Material ◽

Homogeneous Material ◽

Ammonium Bromide ◽

Clay Nanocomposites ◽

Test Results ◽

Degradation Temperature ◽

Total Mixture ◽

Cetyltrimethyl Ammonium

Synthesis of palm oil-based polyurethane (PU) and the formation of nanocomposite from a mixture of PU with clay filler has been performed. Polyol which is the basic material of PU is formed by epoxidation and hydroxylation process and then mixed with isocyanate. Clay used as filler in this study was obtained from the local area of North Aceh, which is a type of swelling of clay that has been modified with cetyltrimethyl ammonium bromide surfactant. Nanocomposites are formed from PU with clay fill variations of 3%, 5%, and 8% by weight of the total mixture of 40 g. The resulting material is tested in character by some type of characterization. Based on the test results with Fourier transform infrared spectroscopy, the hydroxyl polyol group was obtained in groups of 3390.870 (O–H) and –NH as the PU microdomain structure was obtained at a wavelength of 2987 cm−1. Morphological test results using scanning electron microscopy revealed that the addition of modified clay increases the adhesion in the paint and PU coatings and also increases the gloss from the surface and homogeneous material. The thermal endurance test with thermogravimetric analysis reported that the addition of clay fillers in PU showed enhanced effects for better thermal stability in nanocomposite materials when compared with neat polymers. Samples of PU/clay nanocomposites with the addition of 8 wt% clay filler were the most optimum composites among other variations with the thermal degradation temperature value of 296°C. This research generates prospects for applying various industrial surface coatings that are resistant to corrosion and heat, have good mechanical properties, and are more environmentally friendly.

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