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LONG TERM ANTIMICROBIAL ACTIVITY OF MICROENCAPSULATED SAGE ESSENTIAL OIL (CROSBI ID 482097)

Prilog sa skupa u zborniku | izvorni znanstveni rad | domaća recenzija

Pepeljnjak, Stjepan ; Jalšenjak, Vesna LONG TERM ANTIMICROBIAL ACTIVITY OF MICROENCAPSULATED SAGE ESSENTIAL OIL // Aromaterapija i biljni lijekovi u zdravstvenoj ponudi Hrvatske / Stilinović, Božidar ; Pepeljnjak, Stjepan (ur.). Rijeka: Revelin, 2001. str. 59-62-x

Podaci o odgovornosti

Pepeljnjak, Stjepan ; Jalšenjak, Vesna

engleski

LONG TERM ANTIMICROBIAL ACTIVITY OF MICROENCAPSULATED SAGE ESSENTIAL OIL

Essential oil of south Dalmatian sage (Salvia officinalis L.) was microencapsulated in gelatin-accacia microcapsules in 1986. Antimicrobial activity and retention time effect on Bacillus subtilis was tested in 1987., and the inhibition zones obtained were 17 mm. The microcapsule samples were stored at room temperature in glass bottles for 15 years. Antimicrobial activity of microcapsules was examined on B. subtilis after storage period and similar results were obtained. In ten measurements the inhibition zones were in range between 16-17 mm, with an average 16.5 mm. Kinetics of essential oil release from a microcapsule (diameter 50  m) was examined by microantibiogram on microculture with B. subtilis (37 0C), and observed under the light microscope during 36 hours. The observed microcapsule swells after a very short time (2 min), while after 1 hour droplets of essential oil (1.5-2  m) emerge at the microcapsule surface. Droplets of essential oil are seen around the microcapsule surface (1 mm) after 6-8 hours, and after eventually 8 hours there is a clear inhibition zone of 1.2 mm around the microcapsule. Results show that microencapsulation of sage essential oil is very suitable for preservation, in context of stability and unchanged antimicrobial activity during long period of time.

gelatin-accacia microcapsules; sage essential oil; antimicrobial activity

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Podaci o prilogu

59-62-x.

2001.

objavljeno

Podaci o matičnoj publikaciji

Aromaterapija i biljni lijekovi u zdravstvenoj ponudi Hrvatske

Stilinović, Božidar ; Pepeljnjak, Stjepan

Rijeka: Revelin

Podaci o skupu

II. hrvatski simpozij s međunarodnim sudjelovanjem

poster

26.09.2001-28.09.2001

Opatija, Hrvatska

Povezanost rada

nije evidentirano