TY - JOUR
T1 - Eugenol emulsions stabilized by a natural-derived nonionic palmitate surfactant/polyacrylic acid complex
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
UR - http://www.scopus.com/inward/record.url?scp=85116043784&partnerID=8YFLogxK
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 -