用碳水化合物部分替代阿拉伯胶对其微囊化特性的影响。
Effect of partial replacement of gum arabic with carbohydrates on its microencapsulation properties.
作者信息
McNamee B F, White L E, O'Riordan E D, O'Sullivan M
机构信息
Department of Food Science, Faculty of Agriculture, University College Dublin, Belfield, Dublin 4, Ireland.
出版信息
J Agric Food Chem. 2001 Jul;49(7):3385-8. doi: 10.1021/jf001003y.
Gum arabic solutions (10% w/v) were emulsified with soy oil at oil/gum ratios of 0.25-5.0. At oil/gum ratios <1.0, it was established that gum arabic could be partially replaced with a nonsurfactant carbohydrate. To assess different carbohydrates as replacers for gum arabic, emulsions and spray-dried emulsions of soy oil and mixed solutions (10% w/v) of gum arabic and a range of carbohydrate wall materials (oil/gum = 0.5) were prepared and analyzed. Maize starch and glucose were ineffective as partial replacers of gum arabic, but maltodextrins of various dextrose equivalence values (5.5-38) successfully replaced 50% of the gum arabic. The microencapsulation efficiency of the gum arabic/maltodextrin stabilized powders was further increased by increasing total solids of the feed to the dryer and by increasing the atomizer nozzle diameter.
将阿拉伯胶溶液（10% w/v）与大豆油以0.25 - 5.0的油/胶比例进行乳化。在油/胶比例小于1.0时，已证实阿拉伯胶可部分被非表面活性剂碳水化合物替代。为评估不同碳水化合物作为阿拉伯胶的替代物，制备并分析了大豆油乳液以及阿拉伯胶与一系列碳水化合物壁材的混合溶液（10% w/v）的喷雾干燥乳液（油/胶 = 0.5）。玉米淀粉和葡萄糖作为阿拉伯胶的部分替代物无效，但不同葡萄糖当量值（5.5 - 38）的麦芽糊精成功替代了50%的阿拉伯胶。通过增加干燥器进料的总固含量以及增大雾化器喷嘴直径，可进一步提高阿拉伯胶/麦芽糊精稳定化粉末的微囊化效率。
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