The yield ofcell protein was one-third less for streptomycin-dependent Escherichia coli B than for the wild-type parent strain when both were grown aerobically on a medium with limiting glucose, but anaerobically the yield of protein was similar for both strains. The transient pigment absorbing at 503nm that is known to be present in E. coli and other organisms was not detectable in streptomyci...

Two durum wheat trials were carried out in Mediterranean conditions during 2010/2011 and 2011/2012 growing seasons at Plant Breeding Station-Elvas (Portugal). The experiments were conducted under rainfed conditions however, in 2012, due to extreme drought it was necessary to use artificial irrigation between booting and mid grain filling stage. Thirty durum wheat genotypes were studied and six ...

The fermentation process in general is a kind of non-linear and time-variant system. It is necessary to determine optimal conditions in the fermentation process with multiple performance characteristics In this study, a Grey-based Taguchi Method was applied to find the optimal conditions of medium composition to enhance the production of biomass, monacolin K, pigments synthesis, and to reduce t...

In the field of natural pigment production, Monascus sp. is a well known name. These pigments have their applicability as food colorants. In this study, two Monascus sp. namely Monascus purpureus procured from MTCC, Chandigarh, India and Monascus sanguineus isolated inhouse, were compared for pigment production in submerged fermentation. Glycerol was used as sole carbon source and malt extract ...

Cell culture in shake flask and air-lift bioreactor was carried out to exploit the potential of Arnebia sp. for napthoquinone metabolite production. Cell suspension cultures of Arnebia were established from friable callus in liquid MS medium supplemented with 6-benzylaminopurine (BAP) (10 μM) and indole-3-butyric acid (IBA) (5 μM). Growth kinetic studies were done by using settled cell volume a...

Melanin pigment from natural sources like microorganisms was an attractive choice for commercial scale production. In this study, marine bacterium capable of melanin production on marine broth/agar was isolated and identified as Pseudomonas sp. (closely related to guinea) on phenotypic characterization. Melanin production activity of the isolate was studied in liquid mediums such as pure marine...

The present study describes the red pigment synthesized by the filamentous fungi Isaria farinosa under submerged culture conditions. The pigment production was optimal under the following conditions: pH 5, agitation speed 150 rpm, temperature 27 °C, incubation time 192 h, light source total darkness, sucrose and glucose as carbon source, yeast extract, meat peptone and monosodium glutamate at a...

Abstract The experiment was carried out in one of the greenhouses belonging to research station Department Horticulture and Landscape gardening at College Agriculture / University Diyala for agricultural season 2020/2021 as a factorial with two factors, first using four concentrations glycine, which are 0, 50, 100, 150 mg L -1 second factor strawberry varieties Camarose Albion, according design...

Natural pigments are an important alternative to potentially harmful synthetic dyes. We investigated the feasibility of corn cob powder as a substrate for production of pigments by Monascus purpureus KACC 42430 in solid-state fermentation. A pigment yield of 25.42 OD Units/gram of dry fermented substrate was achieved with corn cob powder and optimized process parameters, including 60% (w/w) ini...