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Effect of full-fat goat's milk and prebiotics use on Bifidobacterium BB-12 survival and on the physical properties of spray-dried powders under storage conditions.
Food Research International ( IF 7.0 ) Pub Date : 2018-10-12 , DOI: 10.1016/j.foodres.2018.10.042 Silvani Verruck 1 , Gabriela Rodrigues de Liz 1 , Carolinne Odebrech Dias 1 , Renata Dias de Mello Castanho Amboni 1 , Elane Schwinden Prudencio 1
Food Research International ( IF 7.0 ) Pub Date : 2018-10-12 , DOI: 10.1016/j.foodres.2018.10.042 Silvani Verruck 1 , Gabriela Rodrigues de Liz 1 , Carolinne Odebrech Dias 1 , Renata Dias de Mello Castanho Amboni 1 , Elane Schwinden Prudencio 1
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The effects of full-fat goat's milk and/or inulin and/or oligofructose, as carrier agents, were investigated to improve the survival rates of Bifidobacterium BB-12, and the physical properties of the microcapsules under storage conditions. On the day of their manufacture, the microcapsules were evaluated for morphology, particle size, and distribution of fat and bifidobacteria. The viability of the bifidobacteria, moisture and fat content, water activity, solubility, bulk and tapped density, flowability, cohesiveness and color properties were evaluated for 120 days at 4 °C and 25 °C. The full-fat goat's milk powder with or without inulin as encapsulating agents showed the highest survival rates of Bifidobacterium BB-12 after spray drying and storage. Considering the bifidobacteria survival, both of these spray-dried powders showed the most desirable physical properties, i.e., lowest water activity and solubility, respectively. Both properties are highlighted for better stability of spray-dried powders, with microcapsules, during storage time. These results are credited to full-fat goat's milk (200 g L-1) and the presence of inulin (100 g L-1), besides the fat content showing a high correlation with the solubility values. The lowest volume occupied by the spray-dried powders was noted when oligofructose was used as the carrier agent. The samples that showed the presence of cracks influenced negatively on the bifidobacteria viability. These cracks were responsible by the greater water escape, resulting in powders with more desirable lower water activity. In relation to the color parameters, lower stability was noted when oligofructose was used, while the best stability was also noted for the powders with full-fat goat's milk and/or inulin. During storage time, the best performance was achieved by the microencapsulation process that used only full-fat goat's milk and/or inulin and storage at 4 °C.
中文翻译：
全脂山羊奶和益生元的使用对双歧杆菌BB-12存活率和喷雾干燥粉剂在储存条件下的物理性能的影响。
研究了全脂山羊奶和/或菊粉和/或低聚果糖作为载体的作用，以提高双歧杆菌BB-12的存活率以及在储存条件下微胶囊的物理特性。在制造的当天，对微胶囊的形态，粒径，脂肪和双歧杆菌的分布进行了评估。在4°C和25°C下，在120天的时间内评估了双歧杆菌的生存力，水分和脂肪含量，水活度，溶解度，松密度和堆积密度，流动性，内聚性和颜色特性。含有或不含菊粉作为包封剂的全脂山羊奶粉在喷雾干燥和储存后，双歧杆菌BB-12的存活率最高。考虑到双歧杆菌的生存，这两种喷雾干燥的粉末均显示出最理想的物理性质，即最低的水活度和溶解度。突出了这两个特性，可以在储存期间更好地使带有微胶囊的喷雾干燥粉末具有更高的稳定性。这些结果归功于全脂山羊奶（200 g L-1）和菊粉（100 g L-1）的存在，此外脂肪含量显示出与溶解度值高度相关。当将低聚果糖用作载体剂时，注意到喷雾干燥的粉末占据的最低体积。显示裂缝存在的样品对双歧杆菌的生存能力有负面影响。这些裂纹是由较大的水逸出引起的，导致粉末具有更理想的较低的水活度。关于颜色参数，当使用低聚果糖时，稳定性较低；而对全脂山羊奶和/或菊粉的粉末，其稳定性也最佳。在储存期间，通过仅使用全脂山羊奶和/或菊粉的微囊化工艺可实现最佳性能，并在4°C下储存。
更新日期：2018-10-12
中文翻译：
全脂山羊奶和益生元的使用对双歧杆菌BB-12存活率和喷雾干燥粉剂在储存条件下的物理性能的影响。
研究了全脂山羊奶和/或菊粉和/或低聚果糖作为载体的作用，以提高双歧杆菌BB-12的存活率以及在储存条件下微胶囊的物理特性。在制造的当天，对微胶囊的形态，粒径，脂肪和双歧杆菌的分布进行了评估。在4°C和25°C下，在120天的时间内评估了双歧杆菌的生存力，水分和脂肪含量，水活度，溶解度，松密度和堆积密度，流动性，内聚性和颜色特性。含有或不含菊粉作为包封剂的全脂山羊奶粉在喷雾干燥和储存后，双歧杆菌BB-12的存活率最高。考虑到双歧杆菌的生存，这两种喷雾干燥的粉末均显示出最理想的物理性质，即最低的水活度和溶解度。突出了这两个特性，可以在储存期间更好地使带有微胶囊的喷雾干燥粉末具有更高的稳定性。这些结果归功于全脂山羊奶（200 g L-1）和菊粉（100 g L-1）的存在，此外脂肪含量显示出与溶解度值高度相关。当将低聚果糖用作载体剂时，注意到喷雾干燥的粉末占据的最低体积。显示裂缝存在的样品对双歧杆菌的生存能力有负面影响。这些裂纹是由较大的水逸出引起的，导致粉末具有更理想的较低的水活度。关于颜色参数，当使用低聚果糖时，稳定性较低；而对全脂山羊奶和/或菊粉的粉末，其稳定性也最佳。在储存期间，通过仅使用全脂山羊奶和/或菊粉的微囊化工艺可实现最佳性能，并在4°C下储存。
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