Liposomal encapsulation of oleuropein and an olive leaf extract
molecular interactions, antioxidant effects and applications in model food systems
Povzetek
The influence of actively/passively encapsulated oleuropein on DPPC liposomes thermal and structural properties, and its antioxidant capacity against lipid peroxidation were investigated. Also, an oleuropein-rich olive leaf extract was encapsulated in soy phosphatidylcholine (PL-90 g) and incorporated in model and commercial drinks. Oleuropein induced a concentration-dependent broadening and splitting of the gel-to-liquid phase transition temperature. Fluorescence measurements revealed a fluidizing effect on liposomes below their gel-to-liquid phase transition temperature, and a higher lipid ordering above, especially to active encapsulation. Oleuropein also showed an antioxidant effect against lipid peroxidation in PL-90 g liposomes. PL-90 g Liposomes with olive leaf extract showed a mean diameter of 405 ± 4 nm and oleuropein encapsulation efficiency of 34% and delayed oleuropein degradation at pH 2.0 and 2.8 model drinks. In conclusion, greater effects were observed on the structure and fluidity of DPPC liposomes when oleuropein was actively encapsulated, while its incorporation into acidic foods in encapsulated form could enhance its stability.
Ključne besede
liposomi;enkapsulacija;oljka;Olea europaea;rastlinski ekstrakti;listi oljke;oleuropein;fosfolipidne membrane;
Podatki
| Jezik: | Angleški jezik |
|---|---|
| Leto izida: | 2021 |
| Tipologija: | 1.01 - Izvirni znanstveni članek |
| Organizacija: | UL BF - Biotehniška fakulteta |
| UDK: | 577.3:634.63:615.014.6 |
| COBISS: |
33992195
|
| ISSN: | 1557-1858 |
| Št. ogledov: | 191 |
| Št. prenosov: | 67 |
| Ocena: | 0 (0 glasov) |
| Metapodatki: |
|
Ostali podatki
| Sekundarni jezik: | Slovenski jezik |
|---|---|
| Sekundarne ključne besede: | liposomi;enkapsulacija;oljka;Olea europaea;rastlinski ekstrakti;listi oljke;oleuropein;fosfolipidne membrane; |
| Vrsta dela (COBISS): | Članek v reviji |
| Strani: | str. 84-97 |
| Zvezek: | ǂVol. ǂ16 |
| Čas izdaje: | 2021 |
| DOI: | 10.1007/s11483-020-09650-y |
| ID: | 14110143 |
Priporočena dela:
Liposomal encapsulation of oleuropein and an olive leaf extract
2021,
molecular interactions, antioxidant effects and applications in model food systems
Biennial bearing in olive (Olea europaea)
2007,
ni podatka o podnaslovu
Modeliranje podnebne ustreznosti za gojenje oljk (Olea europaea) na vzhodnem Jadranu (Slovenija, Hrvaška)
2022,
ni podatka o podnaslovu
Fermented olives (Olea europaea L.)
2025,
ǂa ǂdetailed insight into morphological changes and phenolic profile from harvest to jar
Mikrosatelitski markerji in njihova uporabnost v oljkarstvu
2006,
ni podatka o podnaslovu