The production of sorbitol by permeabilized and immobilized cells of Z. mobilis in sucrose

Vignoli, Josiane Alessandra; Celligoi, Maria Antonia Colabone; Silva, Rui Sérgio Ferreira da; Barros, Márcio de

doi:10.1590/s1516-89132006000500020

Cited by 12 publications

(9 citation statements)

References 11 publications

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“…Vignoli et al (2005) observed that the sucrose concentration did not influence sorbitol production by the immobilized culture but increase in the culture time increased sorbitol levels. Permeabilized cells of Zymomonas mobilis also achieved maximum production sorbitol in 36 h of fermentation (Vignoli et al, 2006). Probably, due the high concentration of sugars, the microorganism needed a longer time to metabolize it.…”

Section: Resultsmentioning

confidence: 97%

Influence of high osmotic pressure on sorbitol production by Zymomonas mobilis

Vignoli

Cazetta

Silva

et al. 2010

Braz. arch. biol. technol.

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The objective of the present work was to study the variation on the sorbitol production in relation to the concentration of sugars, (metabolizable or not) and the cultivation time. A full factorial design was used considering the factors such as sucrose and maltose concentration and cultivation time. The addition of sugars caused increases on the sorbitol production up to the concentration of 300g/L however, decreases on the sorbitol production were observed when the concentration reached values above this.Increasing the time of fermentation was statistically significant to sorbitol production, however, little increase the production was noticed after 36h.

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Section: Resultsmentioning

confidence: 97%

Influence of high osmotic pressure on sorbitol production by Zymomonas mobilis

Vignoli

Cazetta

Silva

et al. 2010

Braz. arch. biol. technol.

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“…However, the low cost of loofa sponge and of sucrose as the substrate, is economically more viable than glucose or fructose, used frequently to obtain sorbitol and gluconic acid by Z. mobilis . Cell permeabilization had a negative effect on the production of sorbitol, while the time taken for immobilization on loofa sponge had a positive effect …”

Section: Developments Of Cells Entrapment In Loofa Sponge For Differementioning

confidence: 99%

“…194 The production of sorbitol and gluconic acid from fructose and glucose by glucose-fructose-oxidoreductase present in periplasm of Zymomonas mobilis has been reported. 35,36 For this purpose, the bacterial cells were permeabilized and immobilized in loofa sponge. Sorbitol production from sucrose by immobilized cells was twice that produced by free cells.…”

Section: Bioactivity Of Immobilized Cells In Terms Of Biochemicals Prmentioning

confidence: 99%

Loofa (Luffa cylindrica) sponge: Review of development of the biomatrix as a tool for biotechnological applications

Saeed¹,

Iqbal²

2013

Biotechnology Progress

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The review discusses the development of loofa sponge (Luffa cylindrica) as a biotechnological tool and the diversity of applications in which it has been successfully used since it was first reported as a matrix for the immobilization of microbiological cells in 1993. The fibro-vascular reticulated structure, made up of an open network of random lattices of small cross-sections coupled with very high porosity (79-93%), having very low density (0.02-0.04 g/cm(3) ), and high specific pore volume (21-29 cm(3) /g), has the characteristics of a carrier/scaffold well-suited for cell immobilization. This has been confirmed through the immobilization of cells of diverse types, including filamentous and microalgae, fungi, bacteria, yeasts, higher plants, and human and rat hepatocytes. The cells immobilized in loofa sponge have performed well and better than free suspended cells and those immobilized in conventionally used natural and synthetic polymeric materials for the production of ethanol, organic acids, enzymes, and secondary metabolites. The loofa-immobilized cell systems have been efficiently used for the treatment of wastewaters containing toxic metals, dyes, and chlorinated compounds, and the technology has been used to develop biofilms for the remediation of domestic and industrial wastewaters rich in inorganic and organic matter. In addition, three-dimensional loofa sponge scaffolds for hepatocyte culture have been suggested to have the potential for development into a bioartificial liver device. Loofa sponge is a cost-effective, eco-friendly, and easy to handle matrix that has been used successfully as a biotechnological tool in a variety of systems, purposes, and applications.

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“…bulgaricus cultures has been carried out using ethanol 9. In recent studies, a permeabilization technique has also been applied in the production of sorbitol 10…”

Section: Introductionmentioning

confidence: 99%