142 years after the day of his birth, October 27, 1878, Stamen Grigorov is being honored by Google. Chance of the calendar, it is also a October 27, the year 1945, the physician and microbiologist, has died. Meanwhile, his work allowed the invention of the yogurt.

The scientist sees the light of day in Bulgaria, in the village of Studen Ivzor. After studies in natural sciences, he turned towards the medical sciences, Geneva, Switzerland. In 1905, at only 27 years of age, his career takes a twist exceptional when he discovered the Lactobacillus bulgaricus, a bacterium used as starter culture, that is to say, it allows the fermentation of milk, so the production of yoghurt.

The research of Stamen Grigorov reveal that, far from being a simple food product, dairy product – it can happen in Bulgaria – allows you to heal various diseases or infections, such as tuberculosis or ulcers. In question, a content rich in vitamins, lactose, and proteins, in particular.

The microbiologist Bulgarian has also participated in the creation of an anti-tuberculosis vaccine, BCG, in which the French researchers Albert Calmette and Camille Guérin at the origin of the work, at the Pasteur Institute of Lille.

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