TY - JOUR
T1 - Encapsulation of L-ascorbic acid via polycaprolactone-polyethylene glycol-casein bioblends
AU - Ozsagiroglu, Erhan
AU - Guvenilir, Yuksel Avcibasi
PY - 2015/12
Y1 - 2015/12
N2 - The aim of this study was to encapsulate, L-ascorbic acid, in biopolymers in order to obtain (i) enhancing its encapsulation efficiency (ii) increasing drug release ratio using different pH mediums. Microparticles based on polycaprolactone, polyethylene glycol and casein are prepared by spray drying technique. Microparticles are in vitro characterized in terms of yield of production, particle size, morphology, encapsulation efficiency, and drug release. In this manner, the importance of the study is producing of a stable and effective drug encapsulation system by PCL-PEG-CS polymer mixture by spray dryer. We achieved minimum 27.540±0.656 μm particle size with 0.512 m2/g surface area, 84.05% maximum drug loading, and 68.92% drug release ratio at pH 9.6. Release profiles are fitted to previously developed kinetic models to differentiate possible release mechanisms. The Korsmeyer-Peppas model is the best described each release scenario, and the drug release is governed by non-Fickian diffusion at pH 9.6. Our study proposed as an alternative or adjuvants for controlling release of L-ascorbic acid.
AB - The aim of this study was to encapsulate, L-ascorbic acid, in biopolymers in order to obtain (i) enhancing its encapsulation efficiency (ii) increasing drug release ratio using different pH mediums. Microparticles based on polycaprolactone, polyethylene glycol and casein are prepared by spray drying technique. Microparticles are in vitro characterized in terms of yield of production, particle size, morphology, encapsulation efficiency, and drug release. In this manner, the importance of the study is producing of a stable and effective drug encapsulation system by PCL-PEG-CS polymer mixture by spray dryer. We achieved minimum 27.540±0.656 μm particle size with 0.512 m2/g surface area, 84.05% maximum drug loading, and 68.92% drug release ratio at pH 9.6. Release profiles are fitted to previously developed kinetic models to differentiate possible release mechanisms. The Korsmeyer-Peppas model is the best described each release scenario, and the drug release is governed by non-Fickian diffusion at pH 9.6. Our study proposed as an alternative or adjuvants for controlling release of L-ascorbic acid.
KW - Casein
KW - Drug encapsulation
KW - L-ascorbic acid
KW - Polycaprolactone
KW - Polyethylene glycol
KW - Spray dryer
UR - http://www.scopus.com/inward/record.url?scp=84948962326&partnerID=8YFLogxK
U2 - 10.1515/pjct-2015-0065
DO - 10.1515/pjct-2015-0065
M3 - Article
AN - SCOPUS:84948962326
SN - 1509-8117
VL - 17
SP - 32
EP - 36
JO - Polish Journal of Chemical Technology
JF - Polish Journal of Chemical Technology
IS - 4
ER -