幾丁聚醣微膠囊包覆揮發性精油之製備及其緩釋性之探討

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Title:	幾丁聚醣微膠囊包覆揮發性精油之製備及其緩釋性之探討 Study on Preparation and Controlled Release of Chitosan Microcapsules Encapsulated Volatile Oil
Authors:	張志鵬高韻棽
Contributors:	紡工系
Keywords:	微膠囊幾丁聚醣香茅油簡單凝膠法緩釋性
Date:	2005-03-31
Issue Date:	2010-06-03 10:06:12 (UTC+8)
Abstract:	本研究以幾丁聚醣為殼材，揮發性香茅油為芯材，探討以簡單凝膠法製備幾丁聚醣W/O型微膠囊的可行性。結果顯示微膠囊的成形至少要在幾丁聚醣0.2%、氫氧化鈉0.5%以上。隨幾丁聚醣殼材濃度0.5%、1.0%和1.5%，其包覆率分別為98.2%、95.8%和94.7%。所添加的界面活性之中以加入兩性界面活性劑顯現較好的分散效果。當攪拌速度越快時，則微膠囊粒徑越小。攪拌速度為400rpm、800rpm、1500rpm時，分別可以得到平均粒徑225±24μm、131±20μm和11±3μm的微膠囊。香茅油經微膠囊包覆後可提高緩稀效果。若微膠囊經過高溫前處理後，則會因殼膜結構收縮而獲得更佳的緩稀效果。 In this study, chitosan used as wall material and volatile citronella oil used as core material, the possibility of mannfacturing microcapsule process was discussed. The results indicated that the optimal conditions of morphology were the concentration of wall material over 0.2%, and NaOH 0.1%. The encapsulated ratio were 98.2%、95.8% and 94.7% at the concentration of wall material 0.5%、1.0% and 1.5% respectively. The average particle size were 225±24μm、131±20μm and 11±3μm at the stirring speed 400rpm、800rpm、1500rpm respectively. The effect of sustained release was increased at 80℃ of pretreated temperature.
Relation:	華岡紡織期刊 12卷1期 P.34-41
Appears in Collections:	[Department of Textile Engineering ] Journal of the Hwa Gang Textile

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