The Bulgarian Name of Longevity

Category "Presentation", 5. – 7. grade

Siyana Kraishnikova, 7th grade[1]

Supervisor: Anelia Ivanova

“Konstantin Konstantinov” Secondary School – Sliven (Bulgaria)

https://doi.org/10.53656/nat2025-3.18

Abstract.  Nowadays, there is growing discussion about healthy living, which is associated not only with physical activity but also with nutrition. It is important to understand which foods have a positive impact on human health—one of the key indicators of longevity. This project focuses on Bulgarian yoghurt. A study was conducted to explore its significance for a healthy lifestyle, and the yoghurt-making process was examined through experimentation. Using descriptive and comparative methods, along with analysis of conducted experiments, the project achieved its goal: testing the conditions required for yoghurt fermentation—the optimal milk temperature and environment, and the influence of different starter cultures on the process. The research concluded that effective starter cultures have a higher fat content in the milk, and that the type of culture also affects the duration of the fermentation process.

Keywords: yoghurt; fermentation; lactic acid bacteria; longevity

Свързани статии:

Study of the Application of Curing Procedures in the Kindergarten Aimed at the Formation of a Healthy Culture in Children 120 години от откритието на един велик българин Agreements and Conflicts in the Internalism – Externalism Discussion Thematic and Value Models in Philosophical Education