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http://dx.doi.org/10.17702/jai.2012.13.1.017

Preparation of Fragrant Microcapsule for Reducing Stress  

Kim, Yoon A (Chungbuk National University Attached High School)
Kim, So Hyun (Chungbuk National University Attached High School)
Park, Ji Su (Chungbuk National University Attached High School)
Lee, Da Som (Chungbuk National University Attached High School)
Kim, Jin Gon (Department of Chemistry, Chungbuk National University)
Shin, Jae Sup (Department of Chemistry, Chungbuk National University)
Publication Information
Journal of Adhesion and Interface / v.13, no.1, 2012 , pp. 17-23 More about this Journal
Abstract
A fragrant microcapsule was prepared for use by students to reduce the stress of taking examinations. Rosmarinic acid was used as a fragrant oil which had the effect of relaxing stress, polycaprolactone (PCL) was used as a capsule wall material, and poly(vinyl alcohol) (PVA) as a stabilizer. The solvent evaporation method was used to form the microcapsule. The microcapsules were prepared by changing the stirring rate, the concentration of the stabilizer, and the molecular weight of PCL. The shape of the microcapsule was characterized by scanning electron microscopy (SEM). The size of the microcapsule was reduced by increasing the stirring speed. The release rate of rosmarinic acid was decreased when the higher molecular weight PCL was used. When the prepared microcapsule was tested in an aromatherapy class, the microencapsulated fragrant oil had a longer release time than the original fragrant oil. The study data showed that this fragrant oil was effective for increasing concentration ability, reducing stress, increasing digestive power, and increasing memory for the students.
Keywords
microcapsule; polycaprolacone; rosmarinic acid; fragrant;
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