|
KMID : 0380619830150010051
|
|
Korean Journal of Food Science and Technology
1983 Volume.15 No. 1 p.51 ~ p.55
|
|
|
Study on the Cultural Conditions of Starch Utilizing Yeast Sporobolomyces holsaticus
|
|
신동화/Shin, Dong Hwa
민병용/구영조/박완수/Min, Byong Yong/Koo, Young Jo/Park, Wan Soo
|
|
|
Abstract
|
|
|
|
It was investigated under several cultural conditions to produce biomass directly from starch by an strictly aerobic and amylolytic yeast, Sporobolomyces holsaticus FRI Y-5. Its optimal temperature and initial pH of medium for growth were 23 and 6.9, respectively. Activation energy, Ea, for growth was calculated to be 17.33 Kcal/mole from the Arrhenius relationship. When each of 13 nitrogen sources was added to the basal medium, (NH₂)₂CO had the best effect, on which concentration of cell after 3 day incubation was 10.6 g/ℓ and cell yield was 0.451. The yeast growth was affected by MgSO₄, K₂SO₄ and ZnSO₄ as a mineral source and was best on the medium containing all of them. The addition of yeast extract (5g/ℓ) could enhance the production of biomass and cell yield to 77% and 32%, respectively.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|