Could I ask who's calling? wifeofers Kentucky BioProcessing in Owensboro, Kentucky makes MB-003 using tobacco plants. The plants are genetically engineered to produce 〓〓〓humanized〓〓〓 versions of the antibodies. 〓〓〓It creates a green juice and we purify the antibody from it,〓〓〓 Pettitt says. 〓〓〓It is a much cheaper and quicker way to produce the antibody.〓〓〓