Fig. 6From: Hyaluronic acid production by Klebsiella pneumoniae strain H15 (OP354286) under different fermentation conditionsEffect of agitation rate on HA production by strain H15. Values are shown ± SD of triplicate measurements from two independent experiments. Different letters on the bars of HA concentrations determined by HPLC method (free letters), turbidimetric method (in small squares) and carbazole method (in small circles) indicate significant differences (LSD, P ≤ 0.05) at different agitation ratesBack to article page