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Name: Lactobacillus bulgaricus (bacterium)
Habitat: milk, yogurt
Appearance: gram-positive rods
Way of life: lactic acid fermentation
Characteristic: produces yoghurt: yoghurt helps with diarrhoea, can positively influence our cholesterol level and it can even have an anti-tumor effect. Here the number of bacteria is decisive - the more bacteria, the healthier the yoghurt.