Combining Ultra-Turrax and ultrasonic homogenization to achieve higher vitamin E encapsulation efficiency in spray drying

IF 4.1 2区材料科学 Q2 ENGINEERING, CHEMICAL

Particuology Pub Date : 2024-09-19 DOI:10.1016/j.partic.2024.09.005

Letícia Siqueira , Cristiano Augusto Ballus , Eduardo Hiromitsu Tanabe , Daniel Assumpção Bertuol

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Abstract

Vitamin E, a soluble antioxidant widely used in the food and pharmaceutical industries, is rich in tocopherols and phytosterols. Since vitamin E molecules are highly sensitive to oxidation, encapsulation is a viable and effective technique for preservation of the properties of Vitamin E and improving its stability during storage, maintaining the nutritional value. In this work, the aim was to encapsulate concentrated vitamin E using a combination of Ultra-Turrax and ultrasonication to achieve higher encapsulation efficiency in spray drying. In the first stage, the vitamin E oil was encapsulated employing only Ultra-Turrax homogenization, with subsequent optimization of spray drying. The coating materials used were maltodextrin and whey protein isolate. Optimization of the spray drying step evaluated the effects of the drying air temperature (T) and the feed flow rate (Q), to obtain better yields and a high-quality product. In the second stage, the use of ultrasonication in an additional homogenization step was evaluated, aiming to further improve the encapsulation process. The results showed that the best drying conditions (first stage) were T = 180 °C and Q = 0.6 L/h, which provided the highest yield (67.73%) and high encapsulation efficiency (73.73%). The microspheres produced had similar properties, with mean diameters ranging from 0.64 to 12.99 μm. In the second stage of the investigation, the application of ultrasonication immediately after the Ultra-Turrax homogenization enabled the encapsulation efficiency to be increased to 94.05%, with a yield of 57.54%, using an ultrasonication time of only 7 min. This showed that addition of the ultrasonic homogenization step to the process greatly improved the encapsulation efficiency and could be used to produce vitamin E-enriched powder microcapsules by spray drying, with application in the food industry.

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结合 Ultra-Turrax 和超声波均质技术，提高喷雾干燥中维生素 E 的封装效率

维生素 E 是一种广泛应用于食品和制药行业的可溶性抗氧化剂，富含生育酚和植物甾醇。由于维生素 E 分子对氧化非常敏感，因此封装是一种可行且有效的技术，可以保存维生素 E 的特性，提高其在储存过程中的稳定性，保持其营养价值。在这项工作中，目的是利用 Ultra-Turrax 和超声波相结合的方法封装浓缩维生素 E，从而在喷雾干燥中实现更高的封装效率。在第一阶段，仅使用 Ultra-Turrax 均质法封装维生素 E 油，随后对喷雾干燥进行了优化。使用的包衣材料是麦芽糊精和分离乳清蛋白。喷雾干燥步骤的优化评估了干燥空气温度（T）和进料流速（Q）的影响，以获得更好的产量和高质量的产品。在第二阶段，评估了在额外的均质化步骤中使用超声波的情况，目的是进一步改进封装过程。结果表明，最佳干燥条件（第一阶段）为 T = 180 °C 和 Q = 0.6 L/h，产量最高（67.73%），封装效率高（73.73%）。生产的微球具有相似的特性，平均直径在 0.64 至 12.99 μm 之间。在第二阶段的研究中，Ultra-Turrax 均质化后立即使用超声波处理，使封装效率提高到 94.05%，产量为 57.54%，超声波处理时间仅为 7 分钟。这表明，在工艺中加入超声波均质步骤大大提高了封装效率，可用于通过喷雾干燥法生产富含维生素 E 的粉末微胶囊，并可应用于食品工业。

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来源期刊

Particuology 工程技术-材料科学：综合

CiteScore

6.70

自引率

2.90%

发文量

1730

审稿时长

32 days

期刊介绍： The word ‘particuology’ was coined to parallel the discipline for the science and technology of particles. Particuology is an interdisciplinary journal that publishes frontier research articles and critical reviews on the discovery, formulation and engineering of particulate materials, processes and systems. It especially welcomes contributions utilising advanced theoretical, modelling and measurement methods to enable the discovery and creation of new particulate materials, and the manufacturing of functional particulate-based products, such as sensors. Papers are handled by Thematic Editors who oversee contributions from specific subject fields. These fields are classified into: Particle Synthesis and Modification; Particle Characterization and Measurement; Granular Systems and Bulk Solids Technology; Fluidization and Particle-Fluid Systems; Aerosols; and Applications of Particle Technology. Key topics concerning the creation and processing of particulates include: -Modelling and simulation of particle formation, collective behaviour of particles and systems for particle production over a broad spectrum of length scales -Mining of experimental data for particle synthesis and surface properties to facilitate the creation of new materials and processes -Particle design and preparation including controlled response and sensing functionalities in formation, delivery systems and biological systems, etc. -Experimental and computational methods for visualization and analysis of particulate system. These topics are broadly relevant to the production of materials, pharmaceuticals and food, and to the conversion of energy resources to fuels and protection of the environment.