Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Suzuki T, et al. Method of producing citric acid. US Patent 3,733,253 dated May 15 1973
Fukuda H, et al. Method for producing citric acid. US Patent 3,726,763 dated Apr 10 1973
