TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Microencapsulation of Essential Oils by Using Biocompatible Polymers
(Microîncapsulări de uleiuri esentiale utilizând polimeri biocompatibili)
Vol LXI • No. 1/2009
Sonia Mihai, Andreea Bondarev, Octav Pântea
Universitatea Petrol-Gaze din Ploiesti, Bd. Bucuresti 39, Ploiesti
e-mail: smihai@upg-ploiesti.ro

 Keywords   chitosan, microencapsulation, essential oils.

 Abstract
In this work, it is proposed the use of biomaterials for essential oils encapsulation. In present, the synthesis and the properties of microcapsules from biocompatible polymers are much studied, which it is proved by the large recent amount of literature. Chitosan (fig.1) is a biomaterial compatible with organisms and causes low pollution. In this paper, the strategy of chitosan use for essential oils encapsulation was lead on the following directions: to get skills concerning the procedure of encapsulation by using water/oil emulsions in order to obtain microcapsules with uniform shapes and diameters; study of the encapsulation parameters: solvent, temperature, speed stirring; FTIR, UV-VIS, GC-MS analysis of microcapsules, in order to establish new quantitative methods for the released volatile compound.

 Rezumat
prezent, sinteza şi proprietăţile microcapsulelor din polimeri biocompatibili este intens studiată, fapt dovedit de literatura recentă. Chitosanul (fig.1) este un biomaterial compatibil cu organismele şi nu cauzează poluare. În această lucrare, strategia utilizării chitosanului pentru încapsulări de uleiuri esenţiale a fost direcţionată către: obţinerea de abilităţi pentru încapsulări, folosind emulsii apă/ulei pentru a obţine microcapsule cu formă şi diametru uniforme; studiul parametrilor de încapsulare: solvent, temperatură, viteză de agitare; analiza FTIR, UV-VIS, GC-MS a microcapsulelor, pentru stabilirea unor noi metode cantitative pentru determinarea compusului volatil eliberat.



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