TY  - BOOK
AU  - Abdoulrhman Amir Abdou
AU  - Ebtsam Mohammed Morsy , 
AU  - Mohammed Zakaria Sedik , 
TI  - Yeasts as a promising tool for microbial oil production / 
PY  - 2015///
CY  - Cairo : 
PB  - Abdoulrhman Amir Abdou , 
KW  - Microbial oil
KW  - Nitrogen- limited medium
KW  - Oleaginous yeasts
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Microbiology; Issued also as CD
N2  - Microbial lipid has high similarity to the oil obtained from plants and  animals in type and composition. Production of oil from yeasts must be  economical, so optimization of the cultivation conditions to produce higher  production must be done. Lipomyces starkeyi was used for lipid production  as a standard strain. Native oleaginous yeast, Rhodosporidium toruloides was  isolated from soil and screened. This thesis studied effect of cell disruption  methods and different types of solvent systems for lipid extraction. Several  pre-production medium and production medium were studied for optimizing  lipid production Also, the best carbon and nitrogen source was studied for  lipid production. The research was conducted to design process optimization  for condition factors through robust Taguchi design to identify the best  parameters setting for lipid production. Analyzing of Taguchi data obtained  the best level for each factor, that allow to form new NLM for each strain led  to increase lipid contents reached 70.08 and 55.42% for R. toruloides and L.  starkeyi, respectively. GC-MS was used for identifying and confirming the  production of microbial oil in this study. Palmitic acid and oleic acid were  major compounds for both strains. So, using R. toruloides in the economic  production of lipids is recommended, and applies Taguchi design for more  optimization processes
UR  - http://172.23.153.220/th.pdf
ER  -