Title 교류 펄스에 의한 saccharomyces cerevisiae의 생장억제 효과
Author 정지환 · 박현근 · 한홍의
Address 인하대학교 이과대학 생물학과
Bibliography Korean Journal of Microbiology, 25(3),249-253, 1987
DOI
Key Words AC pulse, Saccharomyces cerevisiae, growth inhibition, lethality, auxotroph
Abstract Effects of Ac pulse at low voltage on Saccharomyces cerevisiae were studied. The treatment of yeast suspensions contained 0.2m NaCl with 500mA for 350 sec at 40℃ was shown about 50% of lethality, whereas in the treatment of the same suspensions with 250mA for 250 sec at the temperature (10℃) corresponding to about 10% of lethality, growth was completely inhibited instead of lethality. The effect of growth inhibition was due to occurrence of auxotrophic strains under experimental conditions. Detection of auxotrophic yeasts was done tentatively with the difference of the number of viable yeast cells between direct counting by methylene blue staining and plate-count on yeast morphology agar.
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