lactobacillus flat icon

lactobacillus flat icon probiotic gut bacteria acidophilus bifidobacterium microbiome health background prebiotic flora digestive bacillus bifidum fungus bacterial lactobacilli yogurt food fermentation healthy lactic medical microorganism bulgaricus microbiota biology bacteriology lactococcus propionibacterium digestion medicine microbiology biotechnology vector web ui design illustration color logo concept sign art symbol element graphic