|
KMID : 0366119740020030155
|
|
Korean Journal of Applied Microbiology & Bioengineering
1974 Volume.2 No. 3 p.155 ~ p.161
|
|
|
Biomass Production of Yeasts from Gas Oil (Ⅱ)
|
|
|
|
|
Abstract
|
|
|
Yeast strains PY-199 and PY-244, in media containing raw light gas oil and raw heavy gas oil respectively, had shown similar responses to the various factors affecting the growth, as explained in detail below.
1) Optimum temperature of the cell growth was found in the vicinity of 30℃ and optimum pH in the range of 5-6, and growth of yeasts was greatly increased during cultivation by controlling the pH at the optimum level.
2) Yamada´s composition of media was adopted with slight modification and the composition was found to be suitable to the two strains. In case concentration of gas oils is increased, proportional increase in other nutrients will be required.
3) It was confirmed that possibility exists to replace yeast extract in media, with anaerobic sludge from alcohol fermentation waste.
4) Addition of non-ionic surfactants was found to check the growth of yeasts.
5) Addition of gas oils was found economical in the range of 5-10%.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|