VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Lipids of a citric-acid-producing Aspergillus niger strain grown in copper- and manganese-supplemented media
    Jernejc, Katarina ...
    A citric-acid-producing Aspergillus niger strain was cultivated in conditions favouring citric acid biosynthesis and in consitions hindering it. During bothextreme processes, the mycelia were ... analysed for their lipid content, individual lipid classes, the content of sterols and free fatty acids. Since phospholipids, especially phosphatidylcholine and sterols, play and essential role in membrane permeability one can conclude that the differences observed substantially contribute to citric acid excretion into fermentation media. Thedifference in sterol composition was the most pronounced. Citirc-acid-excreting mycelia contained lower quantities of sterols and ergosterol was the only component. A. niger mycelia grown in conditions hindering citirc acid accumulation contained higher amounts of sterols with ergosterol as the main component and six other sterol components representing a minor amount.
    Vir: Applied microbiology and biotechnology. - ISSN 0175-7598 (Letn. 32, 1990, str. 699-703)
    Vrsta gradiva - članek, sestavni del
    Leto - 1990
    Jezik - angleški
    COBISS.SI-ID - 839048

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