Induction of Cellulase by Gentiobiose and Its Sulfur-Containing Analog in Penicillium purpurogenum.

purpurogenum Penicillium Sulfur - Containing Analog in Induction of Cellulase by Gentiobiose and Its

Effect of Substrate Feeding on Production of Fructosyltransferase by Penicillium Purpurogenum

Penicillium purpurogenum was found to produce both extracellular and intracellular fructosyltransferase. The organism could also produce sucrose hydrolytic enzyme. Sucrose was found to be the best carbon source for fructosyltransferase production. Maximum intracellular and extracellular fructosyltransferase production was observed after 3 and 4 day of cultivation, respectively. The enzyme activ...

Production of rubratoxin B by Penicillium purpurogenum Stoll.

Culture filtrates and chloroform extracts from Penicillium purpurogenum isolated from foodstuffs were subjected to preliminary survey for toxic effects on HeLa cells and mice. The toxic metabolite was isolated in a crystalline form from P. purpurogenum and was identified as rubratoxin B. Pathological findings observed in HeLa cells and mice treated with the metabolite are briefly described.

Identification of some secondary metabolites produced by four Penicillium species

Fungi produce a wide range of secondary metabolites such as antibiotics, toxins, alkaloids, fatty acids, ketones and alcohols during active cell growth. The present study was aimed to identify secondary metabolites from some Penicillium species, using GC-MS. Many important compounds such as 3-oxoquinuclidine in Penicillium jenseii, formamidine in Penicillium pusillum, orcinol and 1,3,8-p-mentha...

The relationship between cellulase activity and oligosaccharides and cellulose productions by Acetobacter xylinum ATCC 23769

We have tried to investigate various carbohydrates production and cellulose degrading enzyme activity in the culture broth of cellulose producing microorganism, Acetohacter xylinum to clarify the role of cellulase for cellulose production. Carboxymethylcellulose (CMC) degrading activity and various oligosaccharides in addition to cellulose have already been detected after one-day culture. These...