set of hand drawn probiotics bacterias: lactococcus, lactobacillus, bulgaricus, bifidobacterium, propionibacterium, streptococcus

bacillus background bacteria bacterias bacterium bifidobacterium biochemistry biology biotechnology body bowel bulgaricus cell digestion digestive drawing drawn engraving flora graphic gut hand health icon illustration ingredient isolated lactobacillus lactococcus logo medical medicine micro microbe microbiota microflora microorganism microscope molecule nutrition pen pencil prebiotic probiotic probiotics propionibacterium regulation science set sketch streptococcus style symbol vector