摘要
为探索水溶性物质微囊化新方法,利用高压电场微胶囊成型装置制备W/O/W型微囊,内水相为蒸馏水,油相为液体石蜡,外水相为海藻酸钠溶液。研究了电压、液面距、推进速度、初乳/外相水溶液、海藻酸钠浓度对微囊粒径的影响。结果表明:在成囊范围内,电压、液面距和外水相海藻酸钠溶液浓度对微囊的粒径有较为显著的影响。在电压3.15～4kV,液面距2.5～10cm,海藻酸钠浓度0.6%～1.2%条件下,可以制得微囊粒径范围为50～1000μm之间,大小均匀的复乳微囊。
Water-oil-water multiple emulsion was microencapsulated for water-soluble emulsion by the apparatus of electrostatic microencapsulation. The inner phase was distrilled water, while the oil phase was paraffin liquid, and the external phase was NaAlg alginate solution. The effects of voltage applying length of the electric field, pushing speed, first emulsion of external emusion, NaAlg alginate concentration on microcapsule diameter were evaluted. The results showed that voltage, electric field applying length height and NaAlg alginate concentration have great effects on microcapsule diameter range. The optimal conditions were： voltage 3.0-4.0kV, electric field applying length 2.5-10cm and NaAlg alginate concentration 0.6%-1.2%. Even microcapsules with diameter between 50-1000μm are produced.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2006年第2期163-166,共4页
Food Science
基金
上海市自然科学基金项目(05ZR14088)
上海市重点学科建设资助项目(T0503)
江苏省教育厅自然科学基金项目(01KJB360009)
关键词
高压电场
微胶囊
液体石蜡
复乳
high electrostatic field
microcapsule
paraffin liquid
multiple emulsion
