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Solubilization of tea seed oil in a food-grade water-dilutable microemulsion.

Deng L, Que F, Wei H, Xu G, Dong X, Zhang H - PLoS ONE (2015)

Bottom Line: Food-grade microemulsions containing oleic acid, ethanol, Tween 20, and water were formulated as a carrier system for tea seed oil (Camellia oleifera Abel.).The effect of ethanol on the phase behavior of the microemulsion system was clearly reflected in pseudo-ternary diagrams.The solubilization capacity and solubilization efficiency of tea seed oil dispersions were measured along the dilution line at a 70/30 surfactant/oil mass ratio with Tween 20 as the surfactant and oleic acid and ethanol (1:3, w/w) as the oil phase.

View Article: PubMed Central - PubMed

Affiliation: College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R&D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China.

ABSTRACT
Food-grade microemulsions containing oleic acid, ethanol, Tween 20, and water were formulated as a carrier system for tea seed oil (Camellia oleifera Abel.). The effect of ethanol on the phase behavior of the microemulsion system was clearly reflected in pseudo-ternary diagrams. The solubilization capacity and solubilization efficiency of tea seed oil dispersions were measured along the dilution line at a 70/30 surfactant/oil mass ratio with Tween 20 as the surfactant and oleic acid and ethanol (1:3, w/w) as the oil phase. The dispersed phase of the microemulsion (1.5% weight ratio of tea seed oil to the total amount of oil, surfactant, and tea seed oil) could be fully diluted with water without phase separation. Differential scanning calorimetry and viscosity measurements indicated that both the carrier and solubilized systems underwent a similar microstructure transition upon dilution. The dispersion phases gradually inverted from the water-in-oil phase (< 35% water) to the bicontinuous phase (40-45% water) and finally to the oil-in-water phase (> 45% water) along the dilution line.

No MeSH data available.


Related in: MedlinePlus

Solubilization capacity and solubilization efficiency of tea seed oil.The solubilization capacity of tea seed oil (amount of tea seed oil per preparation) (×), and solubilization efficiency (amount of tea seed oil normalized to the amount of oil, ethanol, and surfactant) (∆) were plotted against the aqueous phase content, along the dilution line D73 at 25°C.
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pone.0127291.g002: Solubilization capacity and solubilization efficiency of tea seed oil.The solubilization capacity of tea seed oil (amount of tea seed oil per preparation) (×), and solubilization efficiency (amount of tea seed oil normalized to the amount of oil, ethanol, and surfactant) (∆) were plotted against the aqueous phase content, along the dilution line D73 at 25°C.

Mentions: The solubilization of tea seed oil in a carrier microemulsion system along the dilution line D73 (Fig 1D) was investigated. The effect of water dilution on the solubilization capacity and solubilization efficiency was shown in Fig 2. It should be noted that the solubilization capacity of tea seed oil in a reverse micelle is 39,850 ppm, which is more than two-fold greater than the solubilization capacity of the microemulsion at 10% water content (16,530 ppm). In a reverse micelle, tea seed oil could accumulate in the core of the micelle and on the interface. Based on the significant decrease in solubilization capacity and solubilization efficiency, we suspect that once water was added, the core of the micelle was occupied by water and the hydrophobic tea seed oil could only accumulate at the interface.


Solubilization of tea seed oil in a food-grade water-dilutable microemulsion.

Deng L, Que F, Wei H, Xu G, Dong X, Zhang H - PLoS ONE (2015)

Solubilization capacity and solubilization efficiency of tea seed oil.The solubilization capacity of tea seed oil (amount of tea seed oil per preparation) (×), and solubilization efficiency (amount of tea seed oil normalized to the amount of oil, ethanol, and surfactant) (∆) were plotted against the aqueous phase content, along the dilution line D73 at 25°C.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4440716&req=5

pone.0127291.g002: Solubilization capacity and solubilization efficiency of tea seed oil.The solubilization capacity of tea seed oil (amount of tea seed oil per preparation) (×), and solubilization efficiency (amount of tea seed oil normalized to the amount of oil, ethanol, and surfactant) (∆) were plotted against the aqueous phase content, along the dilution line D73 at 25°C.
Mentions: The solubilization of tea seed oil in a carrier microemulsion system along the dilution line D73 (Fig 1D) was investigated. The effect of water dilution on the solubilization capacity and solubilization efficiency was shown in Fig 2. It should be noted that the solubilization capacity of tea seed oil in a reverse micelle is 39,850 ppm, which is more than two-fold greater than the solubilization capacity of the microemulsion at 10% water content (16,530 ppm). In a reverse micelle, tea seed oil could accumulate in the core of the micelle and on the interface. Based on the significant decrease in solubilization capacity and solubilization efficiency, we suspect that once water was added, the core of the micelle was occupied by water and the hydrophobic tea seed oil could only accumulate at the interface.

Bottom Line: Food-grade microemulsions containing oleic acid, ethanol, Tween 20, and water were formulated as a carrier system for tea seed oil (Camellia oleifera Abel.).The effect of ethanol on the phase behavior of the microemulsion system was clearly reflected in pseudo-ternary diagrams.The solubilization capacity and solubilization efficiency of tea seed oil dispersions were measured along the dilution line at a 70/30 surfactant/oil mass ratio with Tween 20 as the surfactant and oleic acid and ethanol (1:3, w/w) as the oil phase.

View Article: PubMed Central - PubMed

Affiliation: College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R&D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China.

ABSTRACT
Food-grade microemulsions containing oleic acid, ethanol, Tween 20, and water were formulated as a carrier system for tea seed oil (Camellia oleifera Abel.). The effect of ethanol on the phase behavior of the microemulsion system was clearly reflected in pseudo-ternary diagrams. The solubilization capacity and solubilization efficiency of tea seed oil dispersions were measured along the dilution line at a 70/30 surfactant/oil mass ratio with Tween 20 as the surfactant and oleic acid and ethanol (1:3, w/w) as the oil phase. The dispersed phase of the microemulsion (1.5% weight ratio of tea seed oil to the total amount of oil, surfactant, and tea seed oil) could be fully diluted with water without phase separation. Differential scanning calorimetry and viscosity measurements indicated that both the carrier and solubilized systems underwent a similar microstructure transition upon dilution. The dispersion phases gradually inverted from the water-in-oil phase (< 35% water) to the bicontinuous phase (40-45% water) and finally to the oil-in-water phase (> 45% water) along the dilution line.

No MeSH data available.


Related in: MedlinePlus