Effect of Alyssum homolocarpum seed gum, Tween 80 and NaCl on droplets characteristics, flow properties and physical stability of ultrasonically prepared corn oil-in-water emulsions

Koocheki, Arash; Kadkhodaee, Rassoul

doi:10.1016/j.foodhyd.2010.10.012

Cited by 71 publications

(34 citation statements)

References 17 publications

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“…3). Moreover, a number of hydrocolloids such as galactomannans, CMC, and gum karaya lose their viscosity at low pH (Koocheki and Kadkhodaee 2011). However, the viscosity of these two seed gums in compare with those gums which change molecular conformation and ionize mucilage carboxyl groups, did not affect so much at more acidic conditions.…”

Section: Dynamic Rheological Behaviourmentioning

confidence: 89%

“…This is due to the higher solid contents which mostly cause an increase in the viscosity resulting from molecular movements (Maskan and Göǧüş 2000). Koocheki and Kadkhodaee (2011) compared the apparent viscosity of LPG seed gum with other commercial gums. They reported that the viscosity of this gum was lower than guar, almost similar to xanthan and higher than that for locust bean.…”

Section: Flow Behaviour Determinationmentioning

confidence: 99%

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Effect of S. macrosiphon and L. perfoliatum seed gums on rheological characterization of bitter orange (Citrus aurantium L.) and pomegranate (Punica granatum L.) paste blends

et al. 2015

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The steady shear flow properties of bitter orange and pomegranate pastes and blend of two pastes including 0.5% Salvia macrosiphon (SMG) and L. perfoliatum (LPG) seed gums, two traditional Iranian hydrocolloids, were determined. All treatments exhibited shear-thinning behaviour. LPG added sample showed stronger shear thinning behaviour than the other due to its high molecular weight and intermolecular through hydrogen bonds and polymer entanglement. Ostwald model was found the best model to describe steady shear flow behaviour among different time-independent rheological model applied. Treatments including 0.5% these two seed gums indicated a flow behaviour index less than 0.6 and consistency coefficient raised by increasing concentration from 60°Bx to 76°Bx in bitter orange paste (from 0.55 Pa s n to 32.58 Pa s n ), pomegranate paste (from 0.55 Pa s n to 84.87 Pa s n ) and mix of these two pastes (from 0.64 Pa s n to 56.9 Pa s n ). Oscillatory shear data showed weak gel-like behaviour of bitter orange and pomegranate pastes treatments including seed gums with the elastic modulus predominating over the viscous one at lower frequency. However, after weak gel formation, G″ was higher than G′ in the frequency range of 0.01 to 10 Hz. An Ostwald model was used to describe the changes of viscose modulus with frequency. The results indicate that the elastic properties of bitter orange/ pomegranate paste and bitter orange paste may be increased by the presence of LPG and SMG due to associations of ordered chain segments of these gums, resulting in a weak three-dimensional network.Keywords Bitter orange paste . LPG (L. perfoliatum) . Rheology . (SMG) Salvia macrosiphon . Pomegranate paste IntroductionHydrocolloids which are high molecular weight hydrophilic biopolymer are broadly used in food systems due to thickening, gelling, texture modifying and stabilization properties. They improve functional properties like viscosity, water binding capacity and emulsion stability and also can be used to diverse physical, mechanical and sensorial functions of food. The demand for food hydrocolloids with specific functionality increased in last decade. Among commercial available gums, the hydrocolloids from seeds are of much importance due to their low price, easy extraction and availability .Salvia macrosiphon had a great potential to produce mucilage, when small seeds soaked in water. Razavi et al. (2012) studied gum extraction from S. macrosiphon. The optimum condition was observed at pH 5.5, water to seed ratio 51:1 and 25°C. At the optimum condition, the S. macrosiphon powder contained 79.75% carbohydrate, 8.17% ash, 6.72% moisture, 2.84% protein, 1.67% crude fiber, 0.85% lipid. S. macrosiphon dispersion (1% w/v) indicated shearthinning behaviour, the consistency and flow indices ranged Highlights • Non-Newtonian shear thinning behaviour of LPG and SMG in bitter orange and pomegranate and mix of bitter orange/pomegranate pastes • Stronger shear thinning behaviour of LPG than SMG due to its high molecular weight and pol...

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Section: Dynamic Rheological Behaviourmentioning

confidence: 89%

Section: Flow Behaviour Determinationmentioning

confidence: 99%

Effect of S. macrosiphon and L. perfoliatum seed gums on rheological characterization of bitter orange (Citrus aurantium L.) and pomegranate (Punica granatum L.) paste blends

et al. 2015

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“…At week 0, the globules of multiple emulsions F1, F2, and F3 had internal average diameters of 0.293, 0.292 and 0.284 µm, respectively, while the external globules had diameters of 0.605, 0.566, and 0.517 µm, respectively. The average globule diameter of F3 was smaller than those of F2 and F1, because of the concentration of Tween 80 that was most widely used in multiple emulsions F3; the higher the concentration of emulsifier, the smaller the globule size [13]. The microscopic measurements showed that multiple emulsions stored for 8 weeks at room temperature (28±2°C), low temperature (4±2°C), and high temperature (40±2°C) had changes in their globule size which tended to increase.…”

Section: W/o/w Multiple Emulsionsmentioning

confidence: 95%

Formulation and Physical Evaluation of Microemulsion and W/O/W Multiple Emulsions Dosage Forms With Alpha Arbutin, Lactic Acid, and Niacinamide as Skin-Whitening Cosmetics

Surini

Mellani

2017

Int J App Pharm

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Objective: The present study aimed to formulate and determine the physical stability of microemulsion and W/O/W multiple emulsions, containing α arbutin, lactic acid, and niacinamide, as skin-whitening cosmetics. Methods:A skin lightening effect can also be obtained from lactic acid, which accelerates the turnover of pigmented cells in the epidermis, and from niacinamide, which inhibits the transfer of melanosomes from melanocytes to keratinocytes. These active ingredients were combined in microemulsion and W/O/W multiple emulsions dosage forms in various concentrations of Tween 80 as an emulsifier. An evaluation and physical stability test were carried out during 12 weeks of storage at 28±2°C, 4±2°C, and 40±2°C, as well as a cycling test. Results:The results showed that a microemulsion could be prepared in 25-35% of Tween 80 (surfactant) and 10% of ethanol (co-surfactant), and that it had globule sizes of 2.397-16.8 nm, a transparent, pseudoplastic flow, and was most stable in storage at 28±2°C. Microemulsion with 35% of Tween 80 was the most stable microemulsion formula because it had the smallest globule size, the most stable distribution profiles of globule sizes, and the highest viscosity. W/O/W multiple emulsions could formulated made with 2.5-4.5% of Tween 80 (external emulsifier) and 3% of Span 80 (internal emulsifier); these emulsions had a pseudoplastic-thixotropic flow and were most stable in storage at 28±2°C. Conclusions:The formulation of multiple emulsions with 2.5% of Tween 80 was the most stable formula, with a stable distribution profile of globule sizes during 8 weeks of storage at temperatures of 28±2°C, 4±2°C, and 40±2°C.

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“…Surfactant molecules greatly reduce interfacial tension by absorbing into oil-water interfaces, thereby facilitating further disruption of emulsion droplets during homogenization. High surfactant level also enhances the surfactant's ability to absorb into the interface and decreases the time needed to cover the interface (Koocheki and Kadkhodaee 2011). Furthermore, non-ionic surfactants create increased surface area by forming smaller droplets than protein during emulsification (Courthaudon et al 1991).…”

Section: Droplet Size and Distributionmentioning

confidence: 99%

“…Increasing the content of Tween 80 could reduce the creaming index of corn oil-in-water emulsions, but it has no significantly positive effect on viscosity (Koocheki and Kadkhodaee 2011). Tween 80 was reported to be more applicable to low-viscosity than high-viscosity emulsions (Züge et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Effects of glycerol monostearate and Tween 80 on the physical properties and stability of recombined low-fat dairy cream

Wang

Zhang

et al. 2016

Dairy Sci. & Technol.

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Recombined low-fat dairy cream (RLFDC) primarily comprises anhydrous milk fat and milk protein. The primary advantage of RLFDC is that its ingredients can be easily stored and transported, whereas its most notable disadvantage is poor stability. The effects of glycerol monostearate (GMS) or sorbitan monooleate ethoxylate (Tween 80) on the physical properties and stability of RLFDC (20% fat and 2% protein) were investigated in this study. Physical properties were evaluated according to droplet size, surface protein concentration, ζ-potential, and apparent viscosity; stability was assessed according to creaming rate. Results showed that GMS and Tween 80 could significantly increase the creaming stability of RLFDC compared with a control sample. The creaming stability of RLFDC with GMS highly depended on ζ-potential and apparent viscosity, which contributed to electrostatic repulsion and intermolecular resistance. The effect of Tween 80 on the creaming stability of RLFDC was independent of the physical properties.

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Effect of Alyssum homolocarpum seed gum, Tween 80 and NaCl on droplets characteristics, flow properties and physical stability of ultrasonically prepared corn oil-in-water emulsions

Cited by 71 publications

References 17 publications

Effect of S. macrosiphon and L. perfoliatum seed gums on rheological characterization of bitter orange (Citrus aurantium L.) and pomegranate (Punica granatum L.) paste blends

Effect of S. macrosiphon and L. perfoliatum seed gums on rheological characterization of bitter orange (Citrus aurantium L.) and pomegranate (Punica granatum L.) paste blends

Formulation and Physical Evaluation of Microemulsion and W/O/W Multiple Emulsions Dosage Forms With Alpha Arbutin, Lactic Acid, and Niacinamide as Skin-Whitening Cosmetics

Effects of glycerol monostearate and Tween 80 on the physical properties and stability of recombined low-fat dairy cream

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