【摘要】 研究了采用海藻酸钠为囊材,CaCl2溶液为固化液,锐孔法制备铁叶绿酸钠微囊的工艺条件。在实验中,探讨了固化液的浓度、囊材浓度、针头孔径、下滴高度、搅拌速度、乳化剂浓度等实验参数对微囊形态及包封率的影响。结果表明:以海藻酸钠为囊材锐孔法制备铁叶绿酸钠微囊的最佳工艺条件是海藻酸钠的浓度为1%,CaCl2溶液的浓度为2%,海藻酸钠溶液与铁叶绿酸钠溶液的浓度比为1:1,针头孔径0.45mm,转速800r/min,下滴高度10cm。铁叶绿酸钠微囊产品为墨绿色小颗粒,外形颗粒圆整,大小均匀,赋有青草味。更多还原

【Abstract】 The conditions for preparation of sodium iron chlorophyllin microcapsules with sodium alginate as encapsulating material and cacium chloride as curing agent were studied by piercing method. Effects of some processing variables, including concentration of the curing agent and the encapsulating material, needle size, stirring speed, drop height and concentration of the emulsifier, on the morphology of microcapsules and encapsulation efficiency were investigated. The optimum conditions of preparing the sodium iron chlorophyllin microcapsules with using piercing method were determined as follows: sodium alginate concentration of 1%, cacium chloride concentration of 2% , ratio of sodium alginate solution concentration to sodium iron chlorophyllin concentration of 1:1, the needle size of 0.45mm, the stirring speed of 800r/min, and the drop height of 10cm. The microcapsules were black-green, circular, even and have a taste of green grass.更多还原