The decolorization of molasses by 17 different fungi in 2 media was studied. Trichoderma viride showed the highest decolorization yield (53.5%) when cultivated at 30ºC for 7 days in Medium 1 which contained the molasses which was diluted to 40 g/L in distilled water. The other Trichoderma species and Penicillium sp. also gave similar results of 40-45%. Decolorization yield was increased by addi...

The present work studied low-cost carbon sources for carotenoid and lipid production using the yeast Rhodosporidum toruloides NCYC 921. Carob pulp syrup and sugarcane molasses at different concentrations were used as low-cost carbon sources in R. toruloides batch cultivations. Carob pulp syrup containing a total sugar concentration of 75 g L(-1) induced the highest total fatty acid productivity...

Very high gravity (VHG) technology was employed on industrial scale to produce ethanol from molasses (fermented) as well as by-products formation estimation. The effect of different Brix° (32, 36 and 40) air-flow rates (0.00, 0.20, 0.40, and 0.60vvm) was studied on ethanol production. The maximum ethanol production was recorded to be 12.2% (v/v) at 40 Brix° with 0.2vvm air-flow rate. At optimum...

Several papers have been published to show the use of antibiotics as inhibitors of foreign microorganiisms in industrial fermentations (Strandskov and Bockelmann, 1953; Day et al., 1954; Borzani and Aquarone, 1957; Aquarone, 1958; Falcone, 1958; Torloni et al., 1958; Falcone, 1959; Aquarone, 1959) to assure high yields and/or good quality products. The favorable influence of penicillin as a con...

This work aims at optimizing the high cell density fungal cultivation for producing large quantities of fungal biomass to be used in azo dye residues bioremediation. In our previous studies the efficacy of using certain fungal strains to decolorize a range of commercial textile dyes of different structures (azo, disazo) were investigated. Several promising fungal strains belonging to Aspergillu...

Molasses, the main material of this project was diluted and processed, according to the type of the used ultra and nano membranes (UF10kDa, UF5kDa, N30F). Permeate flux was determined at different times for membranes and steady time was registered. By changing transmembrane pressure, permeate flux, which is dependent on the pressure, was registered. Final permeate flux was registered in each tr...

baker's yeast is one of the most important additives for improving the bread quality and molasses is a commonly used source of sugars for producing baker's yeast. nowadays, due to increasing the fermentation industries and limitation in suitable sources of sugars, the use of other carbohydrate sources may be considered.in this study, the possibility of baker's yeast production in three cultures...

Kefir is a fermented beverage produced through the activity of its grains, which constituted by lactic acid and acetic bacteria yeasts. We studied bacterial succession during multiple fermentation Argentinian kefir in brown sugar, purified molasses or high-test molasses, using 16S high-throughput sequencing. Firmicutes was dominant (up to 98% total population) grains beverages made from various...

BACKGROUND L-tryptophan is used widespread in the pharmaceutical industry. The majority of L-Trp production depends on microbial processes that produce L-tryptophan from indole and L-serine. These processes are very costly due to the costs of precursors, especially L-serine. Use of inexpensive substitutions as the L-serine source of L-tryptophan production enables us to reach a cost-effective p...