Effects of Metal Ions Addition on the Growth of and Arachidonic Acid Production by Diasporangium sp.

Abstract

Abstract: The culture conditions for arachidonic acid(AA) production and the growth by Diasporangium sp.were investigated. Ca2+ or Fe3+ enhanced the cell growth, but suppressed the AA production, while Mn2+ revealed the possibility of the enhancement on cell growth but suppression of AA production. With the addition of Zn2+, AA yield reached higher, but there was little effect on cell growth. A medium containing 5×10-6mol/L Cu2+ or 10-7mol/L Co2+ was found to be the optimum for the AA yield and cell growth.

Key words: Arachidonic acid, growth, Diasporangium sp., metal ions

WANG An-Qi, DAI Chuan-Chao, CHEN Jia-Xin, YAO Jun-Jie. Effects of Metal Ions Addition on the Growth of and Arachidonic Acid Production by Diasporangium sp.[J]. FOOD SCIENCE, 2005, 26(9): 67-72.

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Effects of Metal Ions Addition on the Growth of and Arachidonic Acid Production by Diasporangium sp.

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