Abstract:The influence of one of rare earth element lanthanide on the organic chromium accumulation of grifola frondosas was investigated. Results showed that using lanthanide-containg medium could efficiently promote the organic chromium accumulation of grifola frondosas and the optimal culture medium contained 5 mg/L CrCl3•6H2O, 100 g/L La(NO3)3, 300 g/L potato, 36 g/L glucose and 35 g/L bran. With this medium, the yield of organic chromium in grifola frondosas reached 25.61 μg/g. Compared with that in culture medium without lanthanide, 18.33 μg/g excess amount of organic chromium was abtained.
