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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

Pseudo-ternary phase diagrams for microemulsions.Pseudo-ternary phase diagrams for microemulsions of oleic acid, ethanol, Tween 20, and water. The oil phase used were (a) oleic acid; (b) oleic acid/ethanol = 3:1; (c) oleic acid/ethanol = 1:1; (d) oleic acid/ethanol = 1:3.
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pone.0127291.g001: Pseudo-ternary phase diagrams for microemulsions.Pseudo-ternary phase diagrams for microemulsions of oleic acid, ethanol, Tween 20, and water. The oil phase used were (a) oleic acid; (b) oleic acid/ethanol = 3:1; (c) oleic acid/ethanol = 1:1; (d) oleic acid/ethanol = 1:3.

Mentions: Phase diagrams of the multi-component microemulsions containing different weight ratios of oleic acid/ethanol were studied. The microemulsion region area was strongly affected by the addition of ethanol, as shown in Fig 1. In the phase diagram comprising oleic acid, Tween 20, and water (Fig 1A), a small one-phase region [AT = 37.2%; WM(10) = 90.0%] was formed without any effective dilution line. A dramatic increase in the one-phase area was observed with the addition of ethanol. When a 1:3 weight ratio of ethanol to oleic acid was used (Fig 1B), the one-phase region increased [AT = 48.1%], and one effective dilution line appeared. When the weight ratio of oleic acid to ethanol was 1:1, the area of the one-phase region increased further [AT = 68.9%; WM(20) = 90.0%] (Fig 1C). When the ratio of oleic acid/ethanol was 1:3, the area of the two-phase region decreased drastically [AT = 81.2%; WM(40) = 70.2%], and the diluting channels were significantly broadened (Fig 1D).


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)

Pseudo-ternary phase diagrams for microemulsions.Pseudo-ternary phase diagrams for microemulsions of oleic acid, ethanol, Tween 20, and water. The oil phase used were (a) oleic acid; (b) oleic acid/ethanol = 3:1; (c) oleic acid/ethanol = 1:1; (d) oleic acid/ethanol = 1:3.
© Copyright Policy
Related In: Results  -  Collection

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

pone.0127291.g001: Pseudo-ternary phase diagrams for microemulsions.Pseudo-ternary phase diagrams for microemulsions of oleic acid, ethanol, Tween 20, and water. The oil phase used were (a) oleic acid; (b) oleic acid/ethanol = 3:1; (c) oleic acid/ethanol = 1:1; (d) oleic acid/ethanol = 1:3.
Mentions: Phase diagrams of the multi-component microemulsions containing different weight ratios of oleic acid/ethanol were studied. The microemulsion region area was strongly affected by the addition of ethanol, as shown in Fig 1. In the phase diagram comprising oleic acid, Tween 20, and water (Fig 1A), a small one-phase region [AT = 37.2%; WM(10) = 90.0%] was formed without any effective dilution line. A dramatic increase in the one-phase area was observed with the addition of ethanol. When a 1:3 weight ratio of ethanol to oleic acid was used (Fig 1B), the one-phase region increased [AT = 48.1%], and one effective dilution line appeared. When the weight ratio of oleic acid to ethanol was 1:1, the area of the one-phase region increased further [AT = 68.9%; WM(20) = 90.0%] (Fig 1C). When the ratio of oleic acid/ethanol was 1:3, the area of the two-phase region decreased drastically [AT = 81.2%; WM(40) = 70.2%], and the diluting channels were significantly broadened (Fig 1D).

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