Effects of Chain-length of Alkane Substrate on Fatty Acid Composition and Biosynthetic Pathway in Some Candida Yeasts

摘要: Cellular fatty acid compositions of Candida tropicalis pK 233 and lipolytica NRRL Y -6795 the time-course changes during yeast growth were studied using individual n-alkanes various chain lengths (from C11 to C18) a mixture (C11 as sole carbon source. Observed relationships chain-length n-alkane substrate final patterns these yeasts, especially those cells grown on odd-carbon alkanes, indicated that “intact incorporation mechanism,” is, accumulation having same alkane used was predominant in yeasts cultivated longer such n-heptadecane n-octadecane. On other hand, “chain elongation pathway” “de novo synthesis following β-oxidation simultaneously operative growing relatively shorter undecane dodecane.