OBJECTIVE To test the practicability of the solid-state fermentation for medicinal fungi by fermenting Ganoderma lucidum with Radix Astragali containing medium. METHODS Ganoderma lucidum was fermented in ordinary medium, drug-containing medium (containing Radix Astragali) and selenium-rich drug-containing medium respectively. The polysaccharide contents of fermentation products from the three...

The origin of desacetylcephalosporin C in cephalosporin C fermentation broths was investigated. Esterase activity was detected in cell-free extracts of Cephalosporium acremonium, but these extracts failed to deesterify cephalosporin C. When cephalosporin C was added to sterile and inoculated fermentation media, the antibiotic decayed at nearly identical rates. The formation of desacetylcephalos...

nowadays microbial biotechnology is considered as one of the most important and profitable branches of industry. in this approach, by using the generator microorganisms, we are able to produce biotechnological products, with higher efficiency. clavulanic acid is being used in combination with commonly used beta-lactam antibiotics in order to fight against bacterial infections that are resistant...

Enzyme production varies in different fermentation systems. Enzyme expression in different fermentation systems yields important information for improving our understanding of enzymatic production induction. Comparative studies between solid-state fermentation (SSF) using agro-industrial waste wheat bran and submerged fermentation (SmF) using synthetic media were carried out to determinate the ...

The aim of this study was to evaluate the effects of alginate entrapment on fermentation metabolites of Kluyveromyces marxianus grown in agrowastes that served as the liquid culture media. K. marxianus cells entrapped in Na-alginate were prepared using the traditional liquid-droplet-forming method. Whey and pomaces from processed tomatoes, peppers, and grapes were used as the culture media. The...

Introduction Concepts of Industrial Microbiology Microbial Products of Industrial Use Energy Generating Pathways: Fermentations and Respiration Regulation of Metabolic Pathways Screening of Microbes Culture Preservation Strain Development Strategy Microbial Growth and its Kinetics Fermentor & Fermentation Process Fermentation Media Inoculum Development Downstream Processing Commercial Productio...

A rapid sugar fermentation procedure has been developed for the confirmation of Neisseria gonorrhoeae from either primary isolation media or purification media. A lightly buffered salt solution with pH indicator and sugars was heavily inoculated with presumptively positive growth. Proper fermentation patterns are obtained in 1 to 4 h with no interference from inhibited contaminants or variation...

Abstract: Citric acid is a tri carboxylic organic acid is the most important acid produced by fermentation used in the food and pharmaceutical industries. The present work deals with the determination of optimum growth conditions for citric acid production by submerged fermentation by using strain of A.niger MTCC662 respectively. Isolation, screening and mutated the A.niger strain induced by UV...

To intensify the brewing process and increase the fermenter productivity, many breweries throughout the world have been embracing high-gravity brewing. However, increasing original wort concentration can cause a negative effect on yeast fermentation performance. This study focused on the application of fed-batch fermentation in high-gravity brewing. High gravity worts of 24oBx (using 30% high m...

During the last 4 years a considerable amount of research, chiefly along industrial lines, has been performed in connection with the production of acetone together with various alcohols by the fermentation of carbohydrate media, using cultures of different bacteria. Some of this work has already been described in the literature (1, 2). Contributions have also been made to our knowledge of the b...