Studies on Fungal Lipids Containing ${\gamma}$-Linolenic Acid 2. Influence of Cultural Conditions on The Production of ${\gamma}$-Linolenic Acid by Mucor sp.

${\gamma}$-Linolenic acid 함유 곰팡이 지질에 관한 연구 2. Mucor sp.의 ${\gamma}$-Linolenic Acid 생산에 미치는 배양조건의 영향

In order to study the influence of culture conditions on cell growth and lipid formation by Mucor sp, various carbon and nitrogen sources initial pH and C./N ratio of medium were investigated. Glucose was found to be suitable carbon source in terms of lipid yield and ${\gamma}$-linolenic acid(GLA) content. When NH4Cl and (NH4)2SO4 were used as nitrogen source lipid content was high(19-21%) but GLA content was low(15-17%) On the other hand when NaNO3 and KNO3 were used lipid content was low(about 13%) but GLA content was high(22-23%). The highest production of lipid was obtained at a C/N ratio of 40 using glucose and (NH4)2SO4 as carbon and nitrogen source respectively. it was found that lipid yield was high at pH4.6 Also this fungus did not grow at 35$^{\circ}C$ and lipid yield was highr at 15$^{\circ}C$ than $25^{\circ}C$.