S. AL-Shihkly, N., AL-Deliymi, S., F. AL-Jubory, H. (2009). DETERMINATION OF THE OPTIMUM CONCENTRATION OF MICROELEMENTS AND VITAMINES AND THEIR EFFECTS ON THE PROPAGATION OF Candida utilis. , 22(2), 81-87.
Nada S. AL-Shihkly; Saadiyah AL-Deliymi; Hind F. AL-Jubory. "DETERMINATION OF THE OPTIMUM CONCENTRATION OF MICROELEMENTS AND VITAMINES AND THEIR EFFECTS ON THE PROPAGATION OF Candida utilis". , 22, 2, 2009, 81-87.
S. AL-Shihkly, N., AL-Deliymi, S., F. AL-Jubory, H. (2009). 'DETERMINATION OF THE OPTIMUM CONCENTRATION OF MICROELEMENTS AND VITAMINES AND THEIR EFFECTS ON THE PROPAGATION OF Candida utilis', , 22(2), pp. 81-87.
S. AL-Shihkly, N., AL-Deliymi, S., F. AL-Jubory, H. DETERMINATION OF THE OPTIMUM CONCENTRATION OF MICROELEMENTS AND VITAMINES AND THEIR EFFECTS ON THE PROPAGATION OF Candida utilis. , 2009; 22(2): 81-87.

DETERMINATION OF THE OPTIMUM CONCENTRATION OF MICROELEMENTS AND VITAMINES AND THEIR EFFECTS ON THE PROPAGATION OF Candida utilis

AL-TAQANI
Article 1, Volume 22, Issue 2, 2009, Pages 81-87
Authors
Nada S. AL-Shihkly; Saadiyah AL-Deliymi; Hind F. AL-Jubory
Abstract
The study was conducted to know the effect of five Microelements (Copper, Iron, Zinc, Calcium and Magnesium) and two vitamins (Biotin and Thiamine) on the activity and propagation of Candida utilis in data extract and molasses medium.
The results showed that the absence of these minerals and vitamins caused a significant decrease of growth and the addition of both Fe2+and Mg2+ ions increased the yield of biomass 6 times , while the other ions (Ca2+ , Cu2+ and Zn2+ ) caused a little effect on the growth which ganl a dry weight nearly (0.43 , 0.45 and 0.48) g/100ml.
The results indicated also that biotin in the concentration of 0.1 Mg/L gave the best dry weight, whereas thiamine in 10 Mg/L was necessary for good growth.
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