Investigation of Encapsulation Efficiency of Olive Leaf Extract with Alpha and Beta Cyclodextrin

V. International Conferences on Science and Technology (ICONST), 7 - 09 Eylül 2022, ss.292-295, (Tam Metin Bildiri)

In this study, it was aimed to investigate the extraction of phenolic substances from

dried olive tree leaves and encapsulation techniques to convert this obtained extract into a

storable form. Alpha and beta cyclodextrin were used as encapsulation material. The

appropriate cyclodextrin dose and type were determined by providing the re-release of

phenolic substances encapsulated in both cyclodextrins. Phenolic compounds were extracted

by methanol extraction of olive leaves and total phenolic substance amounts were determined

as mg GAE/g dry matter by Folin-Cialculate method. Extractions were carried out from olive

leaves by methanol different dry matter/solvent ratio (5g/15mL, 5g/25 mL and 5g/35 mL) and

determined highest total polyphenol content. Results shows that highest total polyphenol

content is 42.58 – 49.59 mg GAE/g dry matter. According to the results obtained, alpha

cyclodectrin is much more efficient than beta in calculating the encapsulation efficiency using

water.Although the results are very close in the method using methanol, the efficiency of

alpha cyclodesktrin is still higher than beta.