Processing of Russian olive water kefir (RWK), as a fermented functional drink made with Russian olive juice and water kefir grains with high antioxidant activity, into powder is crucial for improving its stability for the commercialization of this product. For the first time, this study aimed to encapsulate water kefir microorganisms and bioactive compounds in RWK using carrier materials to develop a synbiotic functional powder using spray drying as an encapsulation method. The goal was maximizing antioxidant activity, product yield, and survival rate of water kefir microorganisms in the produced Russian olive water kefir powder. The optimal spray drying conditions were observed to be at an inlet air temperature of 120ºC, 35 % feed flow rate, and 7 % concentration of drying aid. The effects of spray drying conditions on the quality of microcapsules were assessed and modeled, and the validity of the model was verified. Also, the spray-dried powder’s physicochemical properties were assessed and showed promising microbial and physicochemical characteristics compared with the freeze-dried powder.

将俄罗斯橄榄油开菲尔（RWK）作为发酵功能性饮料加工成粉末状，这对提高其产品的商业化稳定性至关重要，该功能性饮料是由俄罗斯橄榄汁和具有高抗氧化活性的水开菲尔谷物制成的。这项研究首次旨在使用载体材料将水开菲尔微生物和生物活性化合物封装在RWK中，以使用喷雾干燥作为封装方法开发出一种共生功能性粉末。目的是在生产的俄罗斯橄榄油开菲尔粉中最大程度地提高抗氧化活性，产品收率和开菲尔微生物的存活率。观察到最佳的喷雾干燥条件是在进气温度为120ºC，进料流量为35％和干燥助剂浓度为7％的情况下。对喷雾干燥条件对微胶囊质量的影响进行了评估和建模，并验证了模型的有效性。另外，对喷雾干燥粉末的理化性质进行了评估，与冷冻干燥粉末相比，其显示出令人鼓舞的微生物和理化特性。