One way of identifying and categorizing multiple bacterial organisms in a sample is to use ribotyping.  In ribotyping, differing lengths of chromosomal DNA are isolated from samples containing bacterial species, and digested into fragments.  Similar types of fragments from differing organisms are visualized and their lengths compared to each other by Southern blotting or by the much faster method of polymerase chain reaction (PCR) .  Fragments can then be matched with sequences found on bacterial species.  Ribotyping is shown to be a method to isolate bacteria capable of spoilage.  Around 51% of Pseudomonas bacteria found in dairy processing plants are P. fluorescens, with 69% of these isolates possessing proteases, lipases, and lecithinases which contribute to degradation of milk components and subsequent spoilage.  Other Pseudomonas species can possess any one of the proteases, lipases, or lecithinases, or none at all.  Similar enzymatic activity is performed by Pseudomonas of the same ribotype, with each ribotype showing various degrees of milk spoilage and effects on flavour.  The number of bacteria affects the intensity of spoilage, with non-enzymatic Pseudomonas species contributing to spoilage in high number. 
We can now begin to imagine how to change our diet, avoid certain drugs, and adjust our lifestyles to better regulate our histamine levels. By first identifying our allergens through thorough testing, we can reduce exposure and dramatically empty our “histamine bucket” and lower inflammation. Even if we have no allergies to avoid, we can improve our ability to breakdown non-allergic histamine with B and C vitamins. Ideally we can better prepare our bodies to handle histamine “spikes” as needed for fighting disease, increasing motivation, or simply tolerating delicious leftovers.