Penicillium decumbens

Penicillium chrysogenum s Penicillium decumbens Penicillium funiculosum s Penicillium notatum s Penicillium ochrochloron Penicillium purpurogenum Penicillium rugulosum Penicillium variabile s Phoma spp. ... 

Much work has been published on the microbiological reduction of a,p-unsaturated ketones. Under anaerobic conditions the reduction of A -3-keto steroids by Clostridium paraputrificum led to the 3-keto 5p-derivatives (Scheme 69) Similar transformations were observed previously with Bacillus putrifi-cus, Penicillium decumbens Rhizopus nigricans or Aspergillus niger. In most cases further reduction led to the corresponding 3a-hydroxy 5P-derivatives. 

Sih (38) has described the reduction of E-l-iodo-l-octen-3-one with Penicillium decumbens to give the desired S-alcohol. Based on optical rotation, the e.e. was about 80%, An asymmetric chemical reduction of this same ketone, using lithium aluminum hydride that had been partially decomposed by one mole each of S-2,2 -dihydroxy-l,T-binaphthol and ethanol (42), gave the desired alcohol in 97% e.e. This reagent also reduced l-octyn-3-one in 84% e.e. to the corresponding alcohol (43). A 92% e.e. could be obtained with B-3-pinanyl-9-borabicyclo[3.3.1]nonane as the reducing agent (44). 

Dry citrus peels are rich in pectin, cellulose, and hemicellulose and may be used as a fermentation substrate. Production of multienzyme preparations containing pectinolytic, cellulolytic, and xylanolytic enzymes by the mesophilic fungi A. niger BTL, Fusarium oxysporum F3, Neurospora crassa DSM 1129, and Penicillium decumbens under SSF on dry orange peels was enhanced by optimization of initial pFI of the culture medium and initial moisture level (Mamma et al., 2008). Under optimal conditions A. niger... 

In many cases, molds such as Penicillium and Trichoderma produce volatiles only in the spore producing stage. Methyl ketone and blue cheese aroma generation by certain Penicillium species is a good example. Another example is Penicillium decumbens which produces characteristic odor only on media which allow sporulation... 

Hesperidinase Origin Penicillium decumbens Amano Hesperidinase "Amano" Cone. 

Brefeldin A (102) is a 13-membered ring macrolide initially isolated from Penicillium decumbens [126]. It caused rapid and extensive disruption of Golgi morphology. The molecular target of 102 has not been defined, but its effect has been suggested to be due to the activation of ADP-ribosylation [127]. 

The Effects of Wheat Bran Composition on the Production of Biomass-Hydrolyzing Enzymes by Penicillium decumbens... 

Keywords Penicillium decumbens Wheat bran Biomass Cellulase - Xylanase... 

Ketones from a,/5-ethyleneketones s. 17, 82 stereospecific hydrogenation with Penicillium decumbens cf. T. L. Miller and E. J. Hessler, Biochim. Biophys. Acta 202, 354 (1970)... 

The stereogenic centre in the side-chain was formed by reduction of iodoenone (96) with Penicillium decumbens. The product (97)... 

A group at Upjohn found that Penicillium decumbens selectively reduced the C4-C5 olefin moieties in some steroids, including progesterone (102, Equation 27) [75],... 

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