Biotransformation of daidzein, genistein and biochanin A by three selected filamentous fungi was investigated. As a result of biotransformations, six glycosylation products were obtained. Fungus Beauveria bassiana converted all tested isoflavones to 4″-O-methyl-7-O-glucosyl derivatives, whereas Absidia coerulea and Absidia glauca were able to transform genistein and biochanin A to genistin and ...

Fungi were isolated from soil samples corresponding to pesticide-contaminated soil (CS) and noncontaminated soil (NCS) in the Annaba vicinity (Algeria) and identified. The number of isolates obtained from CS and NCS were 263 and 288, respectively. The most frequent species (Aspergillus fumigatus, A. niger, A. terreus, Absidia corymbifera, and Rhizopus microsporus var microsporus) were not sensi...

Invitro sporostatic effect of fresh milk from four different origin was tested against five otomycoitc pathogens. Maximum sporostatic activity was recorded in cow milk against Aspergillusniger (82.31%) followed by Candidaalbicans (78.95%), Aspergillus flavus (76.00%), Pencillium nigricans (64.40%) and Absidia corymbifera (63.53%). Goat milk caused 87.06 per cent inhibition in the spore germinat...

Two cases, one of Pneumocystis carinii pneumonia and the other of Absidia pneumonitis, are presented. Both are documented by appropriate laboratory studies. Both ended fatally in spite of seemingly appropriate current treatment. The Pneumocystis pneumonia was associated with prolonged corticosteroid therapy for progressive myositis and the Absidia infection was associated with uremia and cortic...

Absidia Absidia is one of the pin molds (zygomycetes) that is frequently found in soil and plant debris (Ellis 1994, Zycha et al. 1969). They produce structures (sporangia) filled with sticky spores under relatively moist conditions. It is also known in indoor environments from air and surface samples. No species are known to produce mycotoxins. A. corymbifera is a well-known agent of zygomycos...

Two subcultures of Absidia blakesleeana IOC No. 2425 (-) mating type strain preserved in 1959 and 1981 on a thick layer of potato dextrose agar (PDA) medium under sterile mineral oil and maintained at room temperature in the Fungal Cultural Collection of Institute Oswaldo Cruz--IOC--were paired with the defined Absidia blakesleeana URM-UFP No. 2076 (+) mating type strain. Portions of the line w...

Racemic [(±)-4-isopropyl-1-methyl-7-oxa-cis-bicyclo[4.3.0]non-4-en-8-one] and optically active δ,ε-unsaturated lactones [(-)-(1R,6R)-4-isopropyl-1-methyl-7-oxabicyclo[4.3.0]non-4-en-8-one and (+)-(1S,6S)-4-isopropyl-1-methyl-7-oxabicyclo[4.3.0] non-4-en-8-one)] with the p-menthane system were obtained and their odoriferous properties were evaluated. Biotransformations of the racemic lactone wit...

The aim of this study was to obtain new unsaturated lactones by chemical synthesis and their microbial transformations using fungal strains. Some of these strains were able to transform unsaturated lactones into different hydroxy or epoxy derivatives. Strains of Syncephalastrum racemosum and Absidia cylindrospora gave products with a hydroxy group introduced into a tertiary carbon, while the Pe...