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STUDIES ON DHAR YEAST
Author(s) -
Mitra S. P.,
Garg N. K.
Publication year - 1958
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1958.tb01677.x
Subject(s) - yeast , chemistry , food science , biochemistry
The effects on the ergosterol contents of the cells of the presence in cultures of Dhar yeast of non‐toxic oxidizing agents (various persalts, methylene blue, Indigo carmine and hydroquinone) as well as of boric acid, ammonium molybdate and magnesium sulphate, are described. Up to a certain concentration, each of these substances (except indigo carmine which, however, stimulates growth) increases the ergosteroi content of the cells, but there is usually (except with magnesium sulphate) a simultaneous decrease in the amount of growth so that there is little or no overall gain. In a medium containing 02% of magnesium sulphate, the ergosterol content of Dhar yeast can be raised from the normal figure of approximately 0.1% to 0.5%, a figure which almost equals that normally obtained for Toruhpsls utilis, and growth is not impaired.