Departamento de Tecnología de Alimentos, INIA, Ctra. de La Coruña Km 7, 28040 Madrid, Spain.
Biomed Res Int. 2019 Jan 17;2019:9814623. doi: 10.1155/2019/9814623. eCollection 2019.
Technological processes in the dairy industry and the further passage through the gastrointestinal tract could impair viability and functionality of probiotic bifidobacteria. In the present work, the growth in milk of nine bifidobacterial strains shared by mother and child, their survival to freeze-drying and cold storage, and their behavior in a model cheese were investigated. All the strains exhibited high stability to the technological conditions studied when compared with two commercial strains. INIA P734 and INIA P671 as adjunct cultures maintained high stability during manufacture and ripening of cheese. Both strains showed, at the end of ripening period, resistance to simulated gastrointestinal conditions. Moreover, their presence did not affect negatively the quality of cheese. INIA P734 and INIA P671 could be considered as potential candidates for their use in cheese as adjunct cultures.
乳制品工业中的技术工艺以及随后通过胃肠道的过程可能会损害益生菌双歧杆菌的存活能力和功能。在本工作中,研究了来自母婴共享的九株双歧杆菌在牛奶中的生长情况、其对冻干和冷藏的存活情况,以及它们在模型干酪中的行为。与两种商业菌株相比,所有菌株在研究的技术条件下均表现出高度的稳定性。作为辅助培养物的 INIA P734 和 INIA P671 在干酪的生产和成熟过程中保持了高度的稳定性。在成熟末期,这两种菌株均表现出对模拟胃肠道条件的抗性。此外,它们的存在不会对奶酪的质量产生负面影响。INIA P734 和 INIA P671 可以被认为是作为辅助培养物用于奶酪的潜在候选菌株。