Uses
Antibiotic complex produced by Streptomyces kanamyceticus Okami & Umezawa from Japanese soil. Comprised of three components, kanamycin A, the major component, and kanamycins B and C, two minor congeners. Antibacterial.
Manufacturing Process
As described in US Patent 2,931,798, Streptomyces kanamyceticus (K2-J) was
first cultured in shake flasks in the following media: (a) 0.75% meat extract,
0.75% peptone, 0.3% NaCl, with 1.0% of starch, dextrin, maltose, glucose,
lactose, sucrose or glycerol; or (b) 2.0% soybean meal, 0.05% KCl, 0.05%
MgSO4 · 7H2O, 0.5% NaCl, 0.2% NaNO3, with 1.0% of starch, dextrin,
maltose, glucose, lactose, sucrose or glycerol. The initial pH of all media was
adjusted to 7.0. After 24 to 48 hours shaking in some cases the pH decreased
to about 6.0 to 6.8, but from 72 to 120 hours the pH rose and became 7.5 to
8.6. The production of kanamycin was apparent after 48 hours and, depending
on the media; the maximum production was found after 72 to 120 hours.
The yield was highest with starch or dextrin, intermediate and about the same
with sucrose, glucose, maltose and lactose and poorest with glycerol.
Kanamycin was produced by media containing soybean meal, peanut meal,
cottonseed meal, corn steep liquor, peptone, yeast extract or meat extract,
with or without sodium nitrate. Commercially available soybean meal was
recognized to be one of the best nitrogen sources. The addition of corn steep
liquor, peptone, yeast extract or nitrate to the soybean meal promoted the
production of kanamycin.
The brownish white kanamycin (5 g) was dissolved in 50 ml of 60% aqueous
methanol, insoluble material was removed and to the filtrate 40 ml of 60%
aqueous methanol containing 2,000 mg of ammonium sulfate was added, and
the precipitated kanamycin sulfate was collected, washed with 50 ml of 80%
aqueous methanol, and dried. Thus, 4.5 g of kanamycin sulfate was obtained
as a light brownish powder.
Biological Activity
soluble in water at 50mg/ml recommend our ultra pure, nuclease free water, ab02123 typically used at 100mg/ml for cell culture protect from moisture store: 2-8°c.
Biochem/physiol Actions
Mode of Action: The product acts by binding to the 70S ribosomal subunit, inhibiting translocation and eliciting miscoding. Mode of Resistance:Aminoglycoside-modifying enzymes (including acetyltransferase, phosphotransferase, nucleotidyltransferase) can alter this antibiotic, preventing its interaction with ribosomes.Antimicrobial spectrum: Kanamycin sulfate is effective against gram-negative and gram-postiive bacteria, and mycoplasma.
