Abstract:
Astudy on the effect of carbohydrates,vitamines,amino acids,calcium and inositol on the cell growth and shikonin derivative formation in suspension cultures of
Arnebia euchroma cells was carried out.Sucrose is better than any other caybohytrates tested for cell growth and pigment formation,and the optimum concentration is 3%,Neither vitamine B
2 nor vitamine B
6 is effective for shikonin derivative formation,but vitamine B
1 can promote cell growth.Both tyrosine and glycine retard the formation of shikonin derivatives,however,10
-5mol/l L-phenylalanine and 10
-7-10
-6mol/l vitamine Cstimulate their biosynthesis,Although inositol has no effect on cell growth,200mg/l inositol can increase pigment content.The optimal concentration of calcium salts for cell growth and shikonin derivative formation are 332mg/l CaCl
2·2H
2O and 1400mg/l Ca(NO
3)
2·4H
2O,respectively,The hetter"growth medium"and"production medium"have been developed and listed in the present paper.