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响应面法优化中碳链脂肪酸甘油三酯微胶囊制备配方的研究
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Optimization of medium chain triglycerides microcapsules by response surface method
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    摘要:

    中碳链脂肪酸甘油三酯具有降低体重、调节脂代谢、缓解疲劳等功效,其常温下为液态,为方便其在食品领域应用,以乳清蛋白、菊粉为壁材,采用喷雾干燥的方法制备中碳链脂肪酸甘油三酯微胶囊。通过单因素实验,考察复配壁材比例、壁材添加量、芯壁比、乳化剂添加量、复配乳化剂比例对中碳链脂肪酸甘油三酯微胶囊包埋率的影响,采用Box-Behnken设计响应面实验优化中碳链脂肪酸甘油三酯微胶囊的制备配方,并测定制备的中碳链脂肪酸甘油三酯微胶囊基本理化性质。结果表明:中碳链脂肪酸甘油三酯微胶囊最佳制备配方为乳清蛋白:菊粉3∶1(w/w)、乳化剂添加量0.4 g/100 mL、芯壁比1∶1(w/w)、复配壁材(乳清蛋白和菊粉)添加量14 g/100 mL、复配乳化剂(单甘酯∶羧甲基纤维素钠)1∶1(w/w),在此条件下制备的中碳链脂肪酸甘油三酯微胶囊包埋率可达95%,具有良好流动性、分散性及溶解性,粒径分布均匀,平均粒径为4.43 μm。

    Abstract:

    Medium chain triglycerides has the effect of reducing body weight, regulating lipid metabolism, relieving fatigue and so on, and it is liquid at room temperature. In order to facilitate its application in the field of food, the medium chain triglycerides microcapsules were prepared by spray drying with whey protein and inulin as composite wall materials. The effects of composite wall material proportion, wall material addition amount, core-wall ratio, emulsifier addition amount and composite emulsifier proportion on the embedding rate of medium chain triglycerides microcapsules were investigated by single factor experiment. Box-Behnken design response surface test was used to optimize the preparation formula of medium chain triglycerides microcapsules, and the basic physical and chemical properties of the prepared medium chain triglyceride microcapsules were determined. The response surface method results showed that the optimal preparation conditions of medium chain triglycerides microcapsules were as follows: whey protein: inulin ratio of 3∶1 (w/w), emulsifier supplemental amount of 0.4 g/100 mL, core wall ratio of 1∶1 (w/w), compound wall material (whey protein and inulin) supplemental amount of 14 g/100 mL, compound emulsifier (monoglycerol∶sodium carboxymethyl cellulose) ratio of 1∶1 (w/w), under this condition, the embedding rate of carbon chain fatty acid triglyceride microcapsules can reach 95%. The medium chain triglycerides microcapsules had good fluidity, dispersibility and solubility. The microcapsules had uniform particle size, the average particle size were 4.43 μm.

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吴汶静,宗爱珍,李子松,王爱月,干昭波,黄凤洪,贾 敏*,徐同成.响应面法优化中碳链脂肪酸甘油三酯微胶囊制备配方的研究[J].粮油食品科技,2023,31(2):97-105.

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  • 在线发布日期: 2023-03-22
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