Nowadays bioactive compounds have gained great attention in food and drug industries owing to their health aspects as well as antimicrobial and antioxidant attributes. Nevertheless, their bioavailability, bioactivity, and stability can be affected in different conditions and during storage. In addition, some bioactive compounds have undesirable flavor that restrict their application especially at high dosage in food products. Therefore, food industry needs to find novel techniques to overcome these problems. Microencapsulation is a technique, which can fulfill the mentioned requirements. Also, there are many wall materials for use in encapsulation procedure such as proteins, carbohydrates, lipids, and various kinds of polymers. The utilization of food-grade and safe carriers have attracted great interest for encapsulation of food ingredients. Yeast cells are known as a novel carrier for microencapsulation of bioactive compounds with benefits such as controlled release, protection of core substances without a significant effect on sensory properties of food products. Saccharomyces cerevisiae was abundantly used as a suitable carrier for food ingredients. Whole cells as well as cell particles like cell wall and plasma membrane can act as a wall material in encapsulation process. Compared to other wall materials, yeast cells are biodegradable, have better protection for bioactive compounds and the process of microencapsulation by them is relatively simple. The encapsulation efficiency can be improved by applying some pretreatments of yeast cells. In this article, the potential application of yeast cells as an encapsulating material for encapsulation of bioactive compounds is reviewed.

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用于封装食品中生物活性化合物的酵母细胞：综述

如今，生物活性化合物因其健康方面以及抗菌和抗氧化特性而在食品和药品行业受到了极大的关注。然而，它们的生物利用度、生物活性和稳定性会在不同的条件下和储存期间受到影响。此外，一些生物活性化合物具有不良风味，限制了它们的应用，特别是在食品中的高剂量应用。因此，食品工业需要寻找新技术来克服这些问题。微囊化是一种可以满足上述要求的技术。此外，还有许多用于封装过程的壁材料，例如蛋白质、碳水化合物、脂质和各种聚合物。食品级和安全载体的使用对食品成分的封装引起了极大的兴趣。酿酒酵母被大量用作食品成分的合适载体。整个细胞以及细胞壁和质膜等细胞颗粒可以在封装过程中充当壁材料。与其他壁材相比，酵母细胞可生物降解，对生物活性化合物有更好的保护，微囊化过程相对简单。通过对酵母细胞进行一些预处理可以提高包封效率。本文综述了酵母细胞作为包封材料在包封生物活性化合物方面的潜在应用。