| dc.description.abstract | Microencapsulation of core substances by clove leaf oil using coating
mixed material of maltodextrin and gelatin with aquadest as a solvent has been
done. Emulsification of these materials was performed by dispersing at a rate of
15,000 rpm for 30 minutes.
Formulations ratio of coating material (maltodextrin and gelatin) were
(2:1), (1:1) and (1:2), respectively, with a total mass of 30 grams of capsule, 10
mL of essential oil and 150 mL aquadest. The emulsion formed dried with freeze
drying process. Furthermore, the dried product analyzed by the size of the
encapsulated, morphological, and essential oil compound particles before and
after encapsulation.
The results showed that the sample with the coating material composition
(1:1) as the selected product with the dry freeze drying results among other
coating concentrations. Measurement of particle diameter using Particle Size
Analyzer (PSA) showed that the average particle diameter of 761.1 nm with a PI
value of 0.064. The morphology of the microencapsulate sample using Scanning
Electron Microscopy obtained granules with a uniformly distributed spherical
distribution indicating that the possibility of the core substances in the volatile oil
might be overlaid by the encapsulation material. The compound content of the
microencapsulate product shows the similarity of the main compound content in
the essential oil of pure clove leaf, that is eugenol, caryophyllene, humullene, and
caryophylene oxide. | en_US |
