Eugenol emulsions stabilized by a natural-derived nonionic palmitate surfactant/polyacrylic acid complex

Kyriaki S. Pafiti; Konstantinos Ioannis Kourtis; Yiannis Sarigiannis; Christos C. Petrou; Manos C. Vlasiou

doi:10.1016/j.colsurfa.2021.127559

Eugenol emulsions stabilized by a natural-derived nonionic palmitate surfactant/polyacrylic acid complex

Kyriaki S. Pafiti, Konstantinos Ioannis Kourtis, Yiannis Sarigiannis, Christos C. Petrou, Manos C. Vlasiou

School of Life and Health Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Eugenol emulsions based on a palmitate surfactant were prepared. The palmitate surfactant was synthesized via a simple esterification reaction of poly(ethylene glycol) (M_n 10,000 g mol⁻¹) and palmitic acid. Subsequently, the surfactant was combined with poly(acrylic acid) (PAA) to give intermolecular complexes that served as the emulsions' stabilising agents. Different ratios of PAA/surfactant complexes were used for the preparation of emulsions. Emulsions with a PAA/surfactant complex ratio of 1/3 gave long-term stable emulsions with hydrodynamic diameters ranging from 62 to 89 nm and narrow size distributions at a quite low emulsifier concentration. The latter emulsions loaded eugenol up to 85%. Furthermore, eugenol emulsions successfully encapsulated the poor-water soluble compound curcumin, increasing its solubility up to 6 times.

Original language	English
Article number	127559
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	630
DOIs	https://doi.org/10.1016/j.colsurfa.2021.127559
Publication status	Published - 5 Dec 2021

Keywords

Emulsions
Encapsulation
Essential oil
Eugenol
Polyelectrolyte/surfactant complex

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10.1016/j.colsurfa.2021.127559

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title = "Eugenol emulsions stabilized by a natural-derived nonionic palmitate surfactant/polyacrylic acid complex",

abstract = "Eugenol emulsions based on a palmitate surfactant were prepared. The palmitate surfactant was synthesized via a simple esterification reaction of poly(ethylene glycol) (Mn 10,000 g mol−1) and palmitic acid. Subsequently, the surfactant was combined with poly(acrylic acid) (PAA) to give intermolecular complexes that served as the emulsions' stabilising agents. Different ratios of PAA/surfactant complexes were used for the preparation of emulsions. Emulsions with a PAA/surfactant complex ratio of 1/3 gave long-term stable emulsions with hydrodynamic diameters ranging from 62 to 89 nm and narrow size distributions at a quite low emulsifier concentration. The latter emulsions loaded eugenol up to 85%. Furthermore, eugenol emulsions successfully encapsulated the poor-water soluble compound curcumin, increasing its solubility up to 6 times.",

keywords = "Emulsions, Encapsulation, Essential oil, Eugenol, Polyelectrolyte/surfactant complex",

author = "Pafiti, {Kyriaki S.} and Kourtis, {Konstantinos Ioannis} and Yiannis Sarigiannis and Petrou, {Christos C.} and Vlasiou, {Manos C.}",

note = "Funding Information: This work was funded by Cyprus Research & Innovation Foundation under the programme {"}Proof of Concept For Technology/Knowhow Applications{"} ( Concept/0618/0051 ) awarded to Pafiti K. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

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AU - Pafiti, Kyriaki S.

AU - Kourtis, Konstantinos Ioannis

AU - Sarigiannis, Yiannis

AU - Petrou, Christos C.

AU - Vlasiou, Manos C.

N1 - Funding Information: This work was funded by Cyprus Research & Innovation Foundation under the programme "Proof of Concept For Technology/Knowhow Applications" ( Concept/0618/0051 ) awarded to Pafiti K. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/12/5

Y1 - 2021/12/5

N2 - Eugenol emulsions based on a palmitate surfactant were prepared. The palmitate surfactant was synthesized via a simple esterification reaction of poly(ethylene glycol) (Mn 10,000 g mol−1) and palmitic acid. Subsequently, the surfactant was combined with poly(acrylic acid) (PAA) to give intermolecular complexes that served as the emulsions' stabilising agents. Different ratios of PAA/surfactant complexes were used for the preparation of emulsions. Emulsions with a PAA/surfactant complex ratio of 1/3 gave long-term stable emulsions with hydrodynamic diameters ranging from 62 to 89 nm and narrow size distributions at a quite low emulsifier concentration. The latter emulsions loaded eugenol up to 85%. Furthermore, eugenol emulsions successfully encapsulated the poor-water soluble compound curcumin, increasing its solubility up to 6 times.

AB - Eugenol emulsions based on a palmitate surfactant were prepared. The palmitate surfactant was synthesized via a simple esterification reaction of poly(ethylene glycol) (Mn 10,000 g mol−1) and palmitic acid. Subsequently, the surfactant was combined with poly(acrylic acid) (PAA) to give intermolecular complexes that served as the emulsions' stabilising agents. Different ratios of PAA/surfactant complexes were used for the preparation of emulsions. Emulsions with a PAA/surfactant complex ratio of 1/3 gave long-term stable emulsions with hydrodynamic diameters ranging from 62 to 89 nm and narrow size distributions at a quite low emulsifier concentration. The latter emulsions loaded eugenol up to 85%. Furthermore, eugenol emulsions successfully encapsulated the poor-water soluble compound curcumin, increasing its solubility up to 6 times.

KW - Emulsions

KW - Encapsulation

KW - Essential oil

KW - Eugenol

KW - Polyelectrolyte/surfactant complex

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U2 - 10.1016/j.colsurfa.2021.127559

DO - 10.1016/j.colsurfa.2021.127559

M3 - Article

AN - SCOPUS:85116043784

SN - 0927-7757

VL - 630

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

M1 - 127559

ER -

Eugenol emulsions stabilized by a natural-derived nonionic palmitate surfactant/polyacrylic acid complex

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