Biotransformations. XIX. Reduction of some terpenic ketones by means of immobilized cells of rhodotorula mucilaginosa

1986 ◽  
Vol 6 (2) ◽  
pp. 141-146 ◽  
Author(s):  
A. Mironowicz ◽  
A. Siewinski
Keyword(s):  
Immobilized Cells ◽  
Rhodotorula Mucilaginosa

Fermentation of Groundnut Shell Enzymatic Hydrolysate for Fuel Ethanol Production by Free and Sorghum Stalks Immobilized Cells of Pichia stipitis NCIM 3498

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Chandrasekhar Gajula ◽  
Anuj Kumar Chandel ◽  
Radhika Konakalla ◽  
Ravinder Rudravaram ◽  
Ravindra Pogaku ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Immobilized Cells ◽  
Pichia Stipitis ◽  
Fuel Ethanol ◽  
Enzymatic Hydrolysate ◽  
Groundnut Shell

Design of a continuous flow immobilized-cell reactor for biosynthetical production of L-aspartic acid

1985 ◽  
Vol 50 (10) ◽  
pp. 2122-2133 ◽  
Author(s):  
Jindřich Zahradník ◽  
Marie Fialová ◽  
Jan Škoda ◽  
Helena Škodová
Keyword(s):  
Aspartic Acid ◽  
Continuous Flow ◽  
Immobilized Cells ◽  
Scale Up ◽  
Fixed Bed ◽  
Packed Bed ◽  
Fixed Bed Reactor ◽  
Experimental Program ◽  
Design Parameters ◽  
Immobilized Cell

An experimental study was carried out aimed at establishing a data base for an optimum design of a continuous flow fixed-bed reactor for biotransformation of ammonium fumarate to L-aspartic acid catalyzed by immobilized cells of the strain Escherichia alcalescens dispar group. The experimental program included studies of the effect of reactor geometry, catalytic particle size, and packed bed arrangement on reactor hydrodynamics and on the rate of substrate conversion. An expression for the effective reaction rate was derived including the effect of mass transfer and conditions of the safe conversion-data scale-up were defined. Suggestions for the design of a pilot plant reactor (100 t/year) were formulated and decisive design parameters of such reactor were estimated for several variants of problem formulation.

scholarly journals Mead Production Using Immobilized Cells of Saccharomyces cerevisiae: Reuse of Sodium Alginate Beads

Processes ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 724
Author(s):  
Miguel L. Sousa-Dias ◽  
Vanessa Branco Paula ◽  
Luís G. Dias ◽  
Letícia M. Estevinho
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Sodium Alginate ◽  
Fermentation Process ◽  
Immobilized Cells ◽  
Alginate Beads ◽  
Production Medium ◽  
Alcohol Content ◽  
Volatile Acidity ◽  
The Matrix ◽  
Second Category

This work studied the production of mead using second category honey and the immobilized cells of Saccharomyces cerevisiae in sodium alginate, with concentrations of 2% and 4%, and their reuse in five successive fermentations. The immobilized cells with 4% alginate beads were mechanically more stable and able to allow a greater number of reuses, making the process more economical. The fermentation’s consumption of sugars with free cells (control) and immobilized cells showed a similar profile, being completed close to 72 h, while the first use of immobilized cells finished at 96 h. The immobilized cells did not significantly influence some oenological parameters, such as the yield of the consumed sugars/ethanol, the alcohol content, the pH and the total acidity. There was a slight increase in the volatile acidity and a decrease in the production of SO2. The alginate concentrations did not significantly influence either the parameters used to monitor the fermentation process or the characteristics of the mead. Mead fermentations with immobilized cells showed the release of cells into the wort due to the disintegration of the beads, indicating that the matrix used for the yeast’s immobilization should be optimized, considering the mead production medium.

scholarly journals Inulinase from Rhodotorula mucilaginosa: immobilization and application in the production of fructooligosaccharides

2021 ◽  
Author(s):  
Geise Camila de Araujo Ribeiro ◽  
Pedro Fernandes ◽  
Dayse Alessandra Almeida Silva ◽  
Hugo Neves Brandão ◽  
Sandra Aparecida de Assis
Keyword(s):  
Rhodotorula Mucilaginosa

Antarctic Strain of Rhodotorula mucilaginosa UFMGCB 18,377 Attenuates Mucositis Induced by 5-Fluorouracil in Mice

2021 ◽  
Author(s):  
Joana O. P. A. Coutinho ◽  
Mônica F. Quintanilha ◽  
Marina R. A. Campos ◽  
Enio Ferreira ◽  
Graciéle C. A. de Menezes ◽  
...  
Keyword(s):  
Rhodotorula Mucilaginosa

scholarly journals Evaluation of olive mill waste as substrate for carotenoid production by Rhodotorula mucilaginosa

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Carolina Ghilardi ◽  
Paola Sanmartin Negrete ◽  
Amalia Antonia Carelli ◽  
Virginia Borroni
Keyword(s):  
Liquid Fraction ◽  
Added Value ◽  
Organic Load ◽  
Integral Approach ◽  
Rhodotorula Mucilaginosa ◽  
Total Sugars ◽  
Carotenoid Production ◽  
Total Sugar Concentration ◽  
Valuable Compounds ◽  
Olive Mill

Abstract The “alperujo” is a waste from the olive oil industry with great potential for valorization. It has a high organic load, with the presence of valuable compounds such as biophenols and sugars. The use of this waste can be thought of as a biorefinery from which different compounds of high added value can be obtained, whether they are present in the “alperujo” such as biophenols or can be generated from the “alperujo”. Therefore, the production of carotenoids by Rhodotorula mucilaginosa was evaluated using the liquid fraction of ‘alperujo’ (Alperujo Water, AW) or an aqueous extract (AE) of “alperujo” at different concentrations (5, 10, 20 and 30% w/V) as substrates. The AEs had an acidic pH, a total sugar concentration ranging from 1.6 to 7.6 g/L, a polyphenols content from 0.4 to 2.9 g/L and a significant amount of proteins (0.5–3 g/L). AW is similar in composition as 30% AE, but with a higher amount of total sugars. Rh. mucilaginosa was able to grow at the different mediums with consumption of glucose and fructose, a reduction in protein content and alkalinization of the medium. Maximum total carotenoid production (7.3 ± 0.6 mg/L) was achieved at AW, while the specific production was higher when the yeast grew at AW or at 30% AE (0.78 ± 0.06 and 0.73 ± 0.10 mg/g of biomass, respectively). Torulene and torularhodin were the main carotenoids produced. Polyphenol content did not change; thus, it is still possible to recover these compounds after producing carotenoids. These results demonstrate the feasibility of using alperujo-based mediums as cheap substrates to produce torularhodin and torulene and to include this bioprocess as a step in an integral approach for alperujo valorization.

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