ISSN:
1432-0614
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Summary In Candida maltosa and other alkene-utilizing yeasts a membrane-bound fatty alcohol oxidase (FAOD) is induced by growth on n-alkenes. The oxidation of 1-alkanols to the corresponding aldehydes is accompanied by the stoichiometric consumption of 1 mol O2 and formation of 1 mol hydrogen peroxide (H2O2). The FAOD of C. maltosa shows a broad substrate specificity. It catalyses the oxidation of 1-alkanols (C4 to C22), with a maximal activity of 1.85 gmmol H2O2/ min × mg protein for 1-octanol, as well as the transformation of 2-alkanols (C8 to C16) to ketones. Other compounds as α,ω-alkenediols, ω-hydroxypalmitic acid, phenylalkanols and terpene alcohols are substrates for the enzyme, although mostly with decreased activities. The oxidation of the racemic 2-alkanols by the FAOD proceeds with very high stereoselectivity for the R(−)-enatiomers only, leaving the S(+)-2-alkanol untouched.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00174205
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